Entries |
Document | Title | Date |
20080213856 | Method and Device for Isolating Micro-Organisms - A process for isolating at least one micro-organism from a medium including a) introducing a selected quantity of magnetic or magnetizable particles into a sample of the medium; b) incubating the particles and the medium for a time sufficient for the micro-organisms to develop and adhere to surfaces of the particles; c) separating the particles from the medium; d) spreading the particles on a support compatible with development of the micro-organisms; and e) incubating the particles on the support for a time sufficient for the development of colonies corresponding to the isolated micro-organism. | 09-04-2008 |
20080220494 | Method of transforming extracellular components of the dermis into a gelatinized substance - The present invention relates to a method to transform all extracellular components of a dermis into a gelatinized substance with long permanence, wherein these extracellular components are obtained from autologous samples of skin of a patient. This method eliminates epidermic cells completely and allows obtaining autologous dermis. The extracellular components of the autologous dermis are obtained by the lysis of collagen fibers. Furthermore, the dermis is exposed to gamma-ray irradiation to eliminate all living cells. | 09-11-2008 |
20090017518 | Magnetic particles and fabrication method thereof - A magnetic particle and fabrication method thereof. The magnetic particle comprises a polymer core, a magnetic material layer covering the polymer core, and a silicon containing layer covering the magnetic material layer. In addition, the magnetic particle may further comprise a coupling agent on the silicon containing layer, and an active molecule connected to the coupling agent. The magnetic particles provide controllable size, uniform diameter distribution, high magnetization, improved storage stability, and modified surface for targeting biomolecules for biomaterial separation and environmental analysis. | 01-15-2009 |
20090061497 | Methods for Extraction and Purification of Components of Biological Samples - A method is provided for extracting and purifying components of biological samples with a two-step process for elution and neutralization of the components from the sample. The separate elution and neutralization steps use adjustment of the buffer pH to improve extraction and purification of the desired components. | 03-05-2009 |
20090130735 | Static Support Bed for Purification, Separation, Detection, Modification and/or Immobilization of Target Entities and Method of Using Thereof - The subject matter hereof discloses a static support bed (SSB) for purification, separation, modification, and/or immobilization of target chemical entities or target biological entities present in a fluid. The static support bed hereof may include one or more microwire supports suitable for the attachment of target chemical entities or target biological entities. | 05-21-2009 |
20090155878 | APPARATUS, METHOD AND SYSTEM FOR CREATING, HANDLING, COLLECTING AND INDEXING SEED AND SEED PORTIONS FROM PLANT SEED - An apparatuses, methods and systems for creating, handling and collecting seed portions are highly beneficial. The apparatus includes a carrier having one or more carrying positions adapted to carry a seed. The carrying positions having a seed orienter adapted to orient the seed relative to the carrying position in the carrier for creating seed portions therefrom. The method includes taking a carrier having one or more carrying positions, orienting a seed relative to the carrying position in the carrier, ablating the seed with a seed ablation device, and communicating seed portions through a manifold into a compartment layer. The system includes a seed manifold adapted to dock thereon a seed carrier having pre-positioned and pre-oriented seed therein. Seed and seed portions removed from the seed in the carrier are communicated into a collector and compartment layer respectively using the seed manifold. | 06-18-2009 |
20090263878 | Pluripotent embryonic-like stem cells derived from corneal limbus, methods of isolation and uses thereof - The present disclosure describes mammalian pluripotent embryonic-like stem cells (ELSCs) isolated from corneal limbal tissue, a non-embryonic tissue. The ELSCs of the present disclosure are capable of proliferating in an in vitro culture, maintain the potential to differentiate into cells of endoderm, mesoderm, and ectoderm lineage in culture, and are capable of forming embryoid-like bodies when placed in suspension culture. Thus, these cells possess multi-lineage differentiation potential and self-renewing capability. ELSCs may be a promising therapeutic tool, and may provide new therapeutic alternatives for various diseases, conditions, and injuries. | 10-22-2009 |
20090298153 | METHOD FOR ULTRASONIC CELL REMOVAL - The present invention provides a method for treating cell culture vessels including multi-layer cell culture vessels with ultrasonic energy to dissociate cells growing on surfaces of cell culture vessels. | 12-03-2009 |
20090317886 | Apparatus and Methods for Separating, Concentrating and Isolating Algae - Apparatus and method to efficiently separate | 12-24-2009 |
20100015682 | ULTRASONIC DISSECTION DEVICE AND ULTRASONIC DISSECTION METHOD - There is provided an ultrasonic dissection device for relatively removing a target biological object from other biological objects, the ultrasonic dissection device including an ultrasonic wave generation unit, an ultrasonic wave convergence unit, and a controller to control the ultrasonic wave generation unit. | 01-21-2010 |
20100055758 | Magnetic Device for Isolation of Cells and Biomolecules in a Microfluidic Environment - The present invention features a new and useful magnetic device and methods of its use for isolation, enrichment, and purification of cells, proteins, DNA, and other molecules. In general the device includes magnetic regions or obstacles to which magnetic particles can bind. The chemical groups, i.e., capture moieties, on the surface of the magnetic particles may then be used to bind particles, e.g., cells, or molecules of interest from complex samples, and the bound species may then be selectively released for downstream collection or further analysis. | 03-04-2010 |
20100055759 | TRANSPARENT POLYMER MEMBRANE FOR LASER DISSECTION - The disclosure encompasses transparent polymer membranes suitable for use in laser microdissection methods, where the membranes allow the subsequent analysis of the microdissected cell or cells with light of a wavelength that can traverse the membrane with little if any absorbance by the membrane. The transfer capture membranes of the disclosure comprise a polymeric composition having the characteristic of being cut by a laser light at a wavelength less than 360 nm, while being substantially optically transparent at a wavelength greater than about 360 nm. The disclosure further provides methods of isolating a cell or population of cells from a tissue, comprising: overlaying a tissue sample with a transfer capture membrane having the characteristic of being cut by a laser light at a wavelength less than 360 nm, and substantially optically transparent at a wavelength greater than about 360 nm, defining an area of the transfer capture membrane by a laser light cutting through the thickness of the transfer capture membrane and the issue sample; and removing the defined area of the transfer capture membrane with the targeted cell or population of cells adhering thereto. | 03-04-2010 |
20100093052 | MAGNETIC CELL SEPARATION - Systems and methods are provided separating a first group of cells from a mixture of at least first and second groups of cells in a suspending fluid. The system includes an annular flow channel and at least one magnetic element positioned around the exterior of the annular flow channel as to provide a radially symmetric magnetic field around at least a portion of the annular flow channel. The at least one magnetic element is configured to provide a gradually increasing magnetic field along the axis of flow as to limit the maximum magnetic gradient within the annular flow channel. A pump is operatively connected to a terminal end of the annular flow channel to force the suspending fluid through the annular channel. | 04-15-2010 |
20100144005 | PROCESS FOR ISOLATING MICROORGANISMS FROM SAMPLES AND SYSTEM, APPARATUS AND COMPOSITIONS THEREFOR - A process for isolating microorganisms from samples, particularly | 06-10-2010 |
20100144006 | Sample Concentration Method and Apparatus - A method and apparatus for controlled concentration of an analyte containing liquid sample. Embodiments include using microwave energy to heat a sample while reducing pressure in a chamber. The combination of reduced pressure and microwave energy can provide sufficient heat to vaporize a portion of the liquid while maintaining analyte integrity. The method and apparatus can increase speed and sensitivity of analyte detection. | 06-10-2010 |
20100178681 | LIPID-FREE SCAFFOLDS FOR HUMAN VOLUME REPLACEMENT OR CELL CULTURE AND USE THEREOF - The present invention relates to lipid removed scaffolds(lipid-free scaffolds) for human tissue volume replacement or cell culture. More particularly, the present invention relates to a method for preparing lipid removed scaffolds(lipid-free scaffolds) for human tissue volume replacement or cell culture, the method comprising the steps of: fragmenting fat tissue to isolate lipids by ultrasonic treatment or high pressure nozzle spray; removing the isolated lipids and fat tissue from which lipids were not isolated to sterilize. According to the present invention, lipids are removed from fat tissue only by physical treatment to maintain the volume thereof and microstructures such as cellular membrane as much as possible and thus the inventive scaffolds are useful for human tissue volume replacement. | 07-15-2010 |
20100178682 | FLOW CYTOMETER HAVING CELL-SORTING FUNCTION AND METHOD OF SEPARATING LIVING CELLS - A liquid sample flow containing living cells is irradiated with measurement laser light and the photo data of at least either scattering light or fluorescence that is generated by each of the living cells in the liquid sample flow due to the irradiation with the measurement laser light is acquired. Based on the photo data thus acquired, it is determined whether each of the cells assignable to the respective photo data is an unnecessary living cell or a target living cell. Based on the determination results, a pulse voltage is then applied exclusively to the living cells having been determined as unnecessary living cells so that the unnecessary living cells are damaged and killed. | 07-15-2010 |
20100216208 | Multiple laminar flow-based particle and cellular separation with laser steering - The invention provides a method, apparatus and system for separating blood and other types of cellular components, and can be combined with holographic optical trapping manipulation or other forms of optical tweezing. One of the exemplary methods includes providing a first flow having a plurality of blood components; providing a second flow; contacting the first flow with the second flow to provide a first separation region; and differentially sedimenting a first blood cellular component of the plurality of blood components into the second flow while concurrently maintaining a second blood cellular component of the plurality of blood components in the first flow. The second flow having the first blood cellular component is then differentially removed from the first flow having the second blood cellular component. Holographic optical traps may also be utilized in conjunction with the various flows to move selected components from one flow to another, as part of or in addition to a separation stage. | 08-26-2010 |
20100267107 | METHODS FOR ISOLATING VERY SMALL EMBRYONIC-LIKE (VSEL) STEM CELLS - The presently disclosed subject matter provides methods of isolating populations of stem cells that from bone marrow, peripheral blood, and/or other sources. Also provided are methods of using the stem cells for treating tissue and/or organ damage in a subject. | 10-21-2010 |
20100273230 | HIGH GRADIENT MAGNETIC SEPARATION OF BIOLOGICAL MATERIAL - The invention relates to a high gradient magnet separation device for the separation or purification of magnetic or magnetically labeled biological material, comprising a magnet, a separating column, and a ferromagnetic matrix that can be arranged in an interior chamber of the separating column, and a storage container containing a buffer solution for the equilibration of the separating column and/or for the suspension of the biological material, wherein during operation a magnetic field created by the magnet creates a high gradient magnetic filed in the matrix and buffer solution can flow from the storage container through the separating column. For this purpose, the buffer solution comprises a base solution and macromolecules that can saturate nonspecific binding sites of the matrix. | 10-28-2010 |
20100279374 | Manipulation of Beads in Droplets and Methods for Manipulating Droplets - The invention provides a method of dispersing or circulating magnetically responsive beads within a droplet in a droplet actuator. The invention, in one embodiment, makes use of a droplet actuator with a plurality of droplet operations electrodes configured to transport the droplet, and a magnetic field present at a portion of the plurality of droplet operations electrodes. A bead-containing droplet is provided on the droplet actuator in the presence of the uniform magnetic field. Beads are circulated in the droplet during incubation by conducting droplet operations on the droplet within a uniform region of the magnetic field. Other embodiments are also provided. | 11-04-2010 |
20100285559 | RADIATION-RESISTANT MUTANTS OF A HALOPHILIC ARCHAEON AND USES THEREOF - The present invention relates to variants of the model halophile | 11-11-2010 |
20110027854 | METHOD FOR CONCENTRATING VIRUSES, METHOD FOR CONCENTRATING CELLS OR BACTERIA, AND MAGNETIC COMPOSITE - A method for concentrating viruses includes applying a magnetic force to a mixture containing: sugar chain-immobilized magnetic metal nano-particles each having a structure in which a sugar chain-immobilized metal nano-particle is bound to a first magnetic nano-particle; second magnetic particles with mean particle size larger than that of the sugar chain-immobilized magnetic metal nano-particles; and a specimen. Each sugar chain-immobilized metal nano-particle has a structure where a ligand-conjugate is bound to a metal nano-particle via sulfur atoms. The ligand-conjugate has a structure where a linker compound's amino group is connected to a sugar chain having a reducing terminal. The linker compound includes, in molecules thereof, an amino group, sulfur atoms, and a hydrocarbon chain having carbon-nitrogen bonds. This allows short-time concentration of viruses in a sufficient amount almost equal to that of centrifugation concentration, allowing safely and effectively concentrating target viruses, resulting in prompt, easy, and highly sensitive detection and identification of viruses. | 02-03-2011 |
20110033910 | CELL SELECTION APPARATUS, AND CELL SELECTION METHOD USING THE SAME - The cell selection apparatus includes: a cell selection vessel which has a pair of electrodes and a sheet-like insulating material having a plurality of micropores, with a recognition molecule bindable to the specific substance being disposed on a bottom face of the micropore; and a power supply, wherein the power supply includes a cell-immobilization power supply and a cell-taking power supply. The cell selection method uses the cell selection apparatus, including; introducing cells into a cell selection area; immobilizing these cells in the micropores; effecting a binding reaction between the specific substance and the recognition molecule; thereafter, taking out a cell of which the specific substance is not or is weakly bound to the recognition molecule, from the micropore; otherwise alternatively, leaving a cell of which the specific substance on the surface of the cell is strongly bound to the recognition molecule, behind in the micropore. | 02-10-2011 |
20110059500 | METHOD FOR SEPARATING IMMUNOMAGNETIC BEAD LABELED PARTICULATES - Disclosed is a method for separating immunomagnetic bead labeled particulates. A carrier board is formed with at least one flow channel structure, which includes an inner reservoir, an outer reservoir, and at least one micro flow channel in communication with the inner reservoir and the outer reservoir. The method includes labeling target particulates with immunomagnetic bead, introducing a sample fluid into the inner reservoir, and applying a magnetic force and a driving force, wherein the driving force drives the particulates not labeled with immunomagnetic bead to flow through the micro flow channel to the outer reservoir, while the magnetic force attracts the particulates labeled with the immunomagnetic bead to retain in the inner reservoir. The driving force may be centrifugal force, pressure, or surface tension. | 03-10-2011 |
20110104778 | Method for Magnetic Separation of Red Blood cells from a Patient Sample - A method for separating components from a patient sample is provided. In particular, the present invention provides a method for the separation of red blood cells or red blood cell components from a patient sample by the use of magnetic beads. | 05-05-2011 |
20110111476 | BLOOD CELL SORTING METHODS AND SYSTEMS - The invention relates to methods of isolating white blood cells (WBCs) from a sample, e.g., whole blood, using magnetic particles that specifically bind to WBCs and a series of specific steps and conditions. The methods can include one or more of decreasing the viscosity of the sample prior to WBC isolation, agitating the sample at specified frequencies, and/or using a sample container arranged such that all of the sample is placed in close proximity (e.g., within 5, 2, 1, or 0.5 mm) to the source of the magnetic field. The new methods provide for isolation of WBC preparations with high yield, purity, and viability. The methods are designed for compatibility with automation protocols for rapid processing of multiple samples. | 05-12-2011 |
20110124076 | TARGETED SEPARATION OF CULTURED CELLS - Embodiments described herein relate to separating and/or concentrating target cells from a carrier fluid that may include other non-target cells. Embodiments include a cell separator with a flow surface having indentations formed thereon. The indentations are configured to capture target cells by physical and/or chemical interactions. The indentations may also include a layer of support molecules that assist in releasing captured cells for collection. | 05-26-2011 |
20110124077 | MOBILE MAGNETIC TRAPS AND PLATFORMS FOR MICRO/NANO PARTICLE MANIPULATION - Magnetic array platforms such as nano or micro-wire networks that produce trapping, manipulation, and transport of micro- or nano-scale particles such as non-biological entities such as magnetic particles and cells, viruses, DNA, proteins, and other biological entities having magnetic particles labeled or tethered thereto are provided. Methods of manipulating, transporting, and sorting micro- or nano-scale particles are described. | 05-26-2011 |
20110151535 | SEPARATION OF CULTURED CELLS - A first cell containing at least one magnetic particle is provided and a second cell is also provided. The second cell is cultured in the presence of the first cell. An alternating magnetic field is applied to the first cell. The alternating magnetic field at least partially separates the first cell from the second cell. | 06-23-2011 |
20110165645 | Methods Using Ion Exchange and Gel Filtration Chromatography for Poxvirus Purification - Provided herein are methods for purifying poxviruses using one or more chromatographic steps including, but not limited to, gel filtration and/or ion exchange chromatography. | 07-07-2011 |
20110201076 | HARVESTING MICRO ALGAE - A reusable composite paramagnetic particle may comprise a paramagnetic core encased by a protective material to which is grafted a tendril layer comprising a plurality of polymeric chains. The polymeric chains may be designed to interact with a microorganism. The interaction between the microorganism and the polymeric chain may be electrostatic. The nanoparticle may be used in a method to isolate or recover microorganisms from solutions using an externally applied magnetic field. | 08-18-2011 |
20110236949 | Methods for Processing Biological Tissues - Methods are provided for removing or separating the cellular and/or soluble macromolecular component of a biological tissue from the extracellular matrix component of the biological tissue, comprising embedding the biological tissue in an electrically conductive semi-solid or solid supporting medium and applying an electric field to the tissue-medium complex. Additionally, methods are provided for decellularizing a skin fragment. | 09-29-2011 |
20110262989 | ISOLATING A TARGET ANALYTE FROM A BODY FLUID - The invention generally relates to using magnetic particles and magnets to isolate a target analyte from a body fluid sample. In certain embodiments, methods of the invention involve introducing magnetic particles including a target-specific binding moiety to a body fluid sample in order to create a mixture, incubating the mixture to allow the particles to bind to a target, applying a magnetic field to capture target/magnetic particle complexes on a surface, and washing with a wash solution that reduces particle aggregation, thereby isolating target/magnetic particle complexes. | 10-27-2011 |
20110262990 | ACOUSTIC DEVICE AND METHODS THEREOF FOR SEPARATION AND CONCENTRATION - The invention provides a settling device comprising an acoustic wave generator and an inclined settling chamber. The angle θ between the acoustic wave direction and the inclined settling chamber is greater than 0 and less than 90°. The invention also provides a concentration method and a separation method using the device. The invention can be used to concentrate or separate particles such as inorganic particles, organic particles, and biological particles, for example, mammalian cells, bacteria, yeast, algae, and plant cells. The invention exhibits technical merits such as higher efficiency, cost-effectiveness, and large-scale production. | 10-27-2011 |
20110281319 | Tissue Processing Device with Ultrasonic Tissue Particle Separator - A device is operable to separate tissue particles. The device comprises a reservoir and an ultrasonic transducer. The reservoir is configured to receive tissue particles in a fluid. The ultrasonic transducer is operable to emit ultrasonic energy toward tissue particles in the reservoir. Control circuitry is configured to drive the ultrasonic transducer at parameters selected to provide movement of tissue particles in the first reservoir based on the size of the tissue particles. The ultrasonic transducer may thus drive the tissue particles toward respective outlets or at particular times based on their particle size. An electrically driven screen may be used to separate tissue particles from liquid. An ultrasonic mincing device may be used to mince tissue particles whose size exceeds a predetermined size range. | 11-17-2011 |
20110294185 | MAGNETIC PLATFORMS FOR BIOMOLECULE TRAPPINGS, MANIPULATIONS, AND SORTING - A magnetic platform is provided and includes a patterned array of discrete magnetic elements positioned on a substrate, a plurality of first electromagnets for creating a first magnetic field substantially in the plane of the substrate, an electromagnetic coil for creating a second magnetic field substantially perpendicular to the plane of the substrate, and a control device for controlling the application of the magnetic fields. Processes for manipulating, transporting, separating and sorting micro- or nano-scale particles and biomolecules are also described. | 12-01-2011 |
20120003709 | METHOD AND SYSTEM FOR CELL AND TISSUE CULTIVATION - A cell cultivating platform includes a substrate having a surface, at least one actuator moveable relative to the substrate, and a deformable material layer positioned above at least a portion of the supporting surface and the at least one actuator. The deformable material layer positioned opposite the substrate surface includes a biocompatible supportive surface suitable for supporting cultivated cells. The supportive surface deforms or otherwise deflects in response to activation of the at least one actuator, effectively releasing at least a portion of the cultured cells from the supportive surface. Suitable actuators include piezoelectric actuators that can be selectively energized according to one or more patterns to facilitate separation of cells from the supportive surface. Such activation cycles can be repeated. | 01-05-2012 |
20120021482 | METHODS FOR ISOLATING VERY SMALL EMBRYONIC-LIKE (VSEL) STEM CELLS - The presently disclosed subject matter provides methods of isolating populations of stem cells that from bone marrow, peripheral blood, and/or other sources. Also provided are methods of using the stem cells for treating tissue and/or organ damage in a subject. | 01-26-2012 |
20120064595 | Method for accumulating cells - The present invention has as an object to simplify the implant work in a series of the process from the separation of target cells by dielectrophresis to the cell cultivation and to realize a cell accumulation method that prevents bacteria contamination by bacteria. | 03-15-2012 |
20120107898 | METHOD FOR OBTAINING HUMAN MICROGLIAL PRECURSOR CELLS FROM PLURIPOTENT STEM CELLS - A method for obtaining human microglial precursor cells, comprising: (a) providing a cell population comprising neural precursor cells, wherein the cell population is obtainable from embryoid bodies differentiated from human pluripotent stem cells; (b) differentiating the cell population comprising neural precursor cells into microglial precursor cells by culturing in medium comprising a growth factor selected from the group consisting of insulin and insulin-like growth factors; (c) expanding and enriching microglial precursor cells in medium comprising a growth factor selected from the group consisting of insulin and insulin-like growth factors and 10 to 150 ng/ml GM-CSF; and (d) isolating microglial precursor cells comprising CD45-positive cells. | 05-03-2012 |
20120135494 | SYSTEMS AND METHODS FOR MAGNETIC SEPARATION OF BIOLOGICAL MATERIALS - A magnetic separator comprising a separation chamber is provided. The magnetic separator comprises an inlet and at least one outlet, and a magnetic source operatively coupled to the separation chamber and comprising a plurality of magnets that can be selectively turned off and on to create a dynamic magnetic field in the separation chamber. | 05-31-2012 |
20120184010 | Microfluidic Device for Isolation of Cells - A microfluidic system ( | 07-19-2012 |
20120237997 | LABEL-FREE CELLULAR MANIPULATION AND SORTING VIA BIOCOMPATIBLE FERROFLUIDS - A device for separating a sample of cells suspended in a bio-compatible ferrofluid is described. The device includes a microfluidic channel having a sample inlet, at least one outlet and a length between the same inlet and the at least one outlet, wherein a sample can be added to the sample inlet and flow along the microfluidic channel length to the at least one outlet. The device includes a plurality of electrodes and a power source for applying a current to the plurality of electrodes to create a magnetic field pattern along the microfluidic Channel length. The present invention also includes a method of using said device for separating at least one cell type. | 09-20-2012 |
20120252088 | FLOATING MAGNET PROBE FOR CELL ISOLATION - A cell isolation device with an inner freely floating magnetic probe to capture and collect biological cells, such as circulating tumor cells (CTCs), during immunomagnetic incubation provides a highly efficient, low cost method to collect target cells at a single cell level. A special membrane filter may be placed above a wash well to enable separation of collected cells from free magnetic beads to yield high purity cells enabling accurate cell count. The novel approach provides a faster turn-around to separate target cells from blood, marrow or other samples with efficient removal of free magnetic beads. Cancel cell spiking experiments show a recovery rate of greater than 85%. | 10-04-2012 |
20120329123 | METHOD FOR DETACHING CULTURED CELLS, CELL DETACHMENT DEVICE USED IN SAID METHOD FOR DETACHING CULTURED CELLS, AND INCUBATOR - Disclosed is a method for detaching cultured cells that can selectively detach cultured adhered cells. The scaffold to which the cells adhere is configured from at least a cell adhesion factor containing carbon nanotubes, and by means of radiating laser light in a spot shape on the scaffold in a region where cells are adhered, a shock wave is generated by the heat arising by means of the photothermal conversion of the carbon nanotubes, and by means of this shock wave, the cells are caused to be in a non-adhered state. | 12-27-2012 |
20130011899 | CELL FUSION CHAMBER, CELL FUSION DEVICE, AND METHOD FOR CELL FUSION USING THE SAME - The present invention relates to a cell fusion chamber in which two types of cells having different diameters are fused, the cell fusion chamber including: a cell fusion region in which cell fusion is carried out; a pair of electrodes formed by a conductor and disposed opposite to each other in the cell fusion region; and a partition wall having at least one fine pore; near the fine pore, a cell fusion device including a cell fusion container containing a cell fusion region; a pair of electrodes; a spacer; and an insulator disposed between the spacer and one of the electrodes and having at least one fine pore; and an electronic power supply which applies an alternating voltage and a voltage pulsed direct current to the electrodes, and a cell fusion method using the same. | 01-10-2013 |
20130023024 | CONJUGATE OF MAGNETIC PARTICLE AND SURFACE MODIFIER LINKED THROUGH CLEAVABLE PEPTIDE BOND - A conjugate is provided for cell processing, which comprises a magnetic particle and a surface modifier having specific affinity to a target cell. The particle and modifier are linked through a cleavable peptide bond. In a method of cell processing, the conjugate is attached to a target cell; the target cell attached to the conjugate is subject to magnetic processing; the peptide bond is cleaved to separate the processed target cell from the magnetic particle; the target cell separated from the magnetic particle is attached to a substrate. The magnetic particle may include an iron oxide, and the surface modifier may include a glucosamine. The particle and modifier may be linked by a linker comprising a protease recognition site and a peptide bond. The linker links the surface modifier to the particle, and cleavage of the peptide bond is catalyzed by a specific protease that recognizes the protease recognition site. | 01-24-2013 |
20130023025 | METHOD FOR SEPARATING CELLS, CELL CULTURE SUBSTRATE, AND DEVICE FOR SEPARATING CELLS - A method for separating cells which includes: adhering cells to the surface of a cell culture substrate containing a photo-acid generator that generates an acidic substance upon irradiation with active energy rays, and irradiating only a partial region of the cell culture substrate with the active energy rays to selectively remove the cells within the partial region, thereby separating the cells within the partial region and cells in other regions. | 01-24-2013 |
20130089909 | BINDING A TARGET SUBSTANCE - Magnetic particles capable of binding a target substance, which comprise a magnetic material and a matrix material, wherein the magnetic material is remanent upon exposure to a magnetic field and the matrix material has a surface comprising functional groups which promote disaggregation of the particles in the presence of a liquid phase. | 04-11-2013 |
20130189754 | IMMUNOSELECTION OF RECOMBINANT VESICULAR STOMATITIS VIRUS EXPRESSING HIV-1 PROTEINS BY BROADLY NEUTRALIZING ANTIBODIES - The present relation relates to recombinant vesicular stomatitis virus for use as prophylactic and therapeutic vaccines for infectious diseases of AIDS. The present invention encompasses the preparation and purification of immunogenic compositions which are formulated into the vaccines of the present invention. | 07-25-2013 |
20130189755 | APPARATUS FOR SEPARATING FINE PARTICLES USING MAGNETOPHORESIS, AND METHOD FOR SEPARATING FINE PARTICLES USING SAME - The present invention relates to an apparatus for separating fine particles using magnetophoresis, and to a method for separating fine particles using same, and particularly, to an apparatus for separating fine particles using magnetophoresis, which includes a fine, patterned magnetic structure capable of quickly and efficiently separating even particles that are weakly magnetized and coupled to fine particles, and to a method for separating fine particles using same. | 07-25-2013 |
20130210109 | Differentiated Pluripotent Stem Cell Progeny Depleted of Extraneous Phenotypes - The invention provides methods for depleting extraneous phenotypes from a mixed population of cells comprising the in vitro differentiated progeny of primate pluripotent stem cells. The invention also provides mixed cell populations enriched for a target cell phenotype where the mixed cell population comprises the differentiated in vitro progeny of primate embryonic stem cells. | 08-15-2013 |
20130224822 | MODIFICATION OF MICROALGAE FOR MAGNETIC PROPERTIES - Genetically engineered algae strains for biofuels and bioproduct production have improved iron utilization including iron uptake and storage, and exhibit improved growth characteristics, magnetic separation, and magnetic hysteresis induced cell lysis. Pond production algal strain embodiments with high iron scavenging capabilities limit iron availability to contaminating microorganisms and invading species. Accumulation of high iron and other paramagnetic elements content in the form of ferritin enhances the cells magnetic susceptibility improving efficiency of magnetic separation and magnetic hysteresis induced cell lysis. Several genes of the embodiments are capable of improving iron acquisition including the ferritin gene fer1, iron transport gene fea1, and iron reductase gene fre1. Other genes which improve growth in the high iron conditions permitting higher accumulation of iron include radical scavenging enzymes such as superoxide dismutase, peroxidase, catalase, glutathione peroxidase and the Ferritin like DPR/DPS genes which also bind iron and protect DNA from reactive oxygen species. | 08-29-2013 |
20130273630 | COMPOSITIONS AND METHODS FOR CONTINUOUS HARVESTING OF SUSPENSION GROWTH CULTURES - Embodiments herein concern compositions, methods and uses for harvesting suspension cultures or decontaminating waters. In certain embodiments, suspension microorganism cultures can comprise algal cultures. In some embodiments, harvesting suspension cultures may include using a composition capable of interacting with the culture in order to separate the culture from a liquid or media. | 10-17-2013 |
20130288329 | Producing Algae Biomass Having Reduced Concentration Of Contaminants - The present invention is generally directed to a system for producing an algae biomass and wastewater that have reduced concentrations of contaminants. The algae and wastewater treated by the system of the present invention can be combined in a heterotrophic growth system in which the growth of the algae is increased due to the reduced concentration of contaminants. The algae grown in this manner also has a longer shelf life due to the lack of contaminants within the harvested algae. | 10-31-2013 |
20140017754 | SYSTEMS, METHODS AND APPARATUSES FOR AGGREGATING AND HARVESTING MICROORGANISMS FROM AN AQUEOUS SUSPENSION - Described herein are systems, methods, and apparatuses for aggregating microorganism in an aqueous suspension. In particular, are systems, methods, and apparatuses that apply an electrical field and/or acoustic energy to an aqueous suspension comprising microorganisms as the aqueous suspension follows a flow path to cause aggregation of the microorganisms. The electrical field may be continuous or pulsed. In some embodiments, the flow path for the aqueous suspension may vary. In some embodiments, the cross-sectional area of the electrical field may be tuned. | 01-16-2014 |
20140017755 | AGGREGATING MICROORGANISMS WITH ELECTRICAL AND ACOUSTIC ENERGY - Described herein are systems, methods, and apparatuses for aggregating microorganism in an aqueous suspension. In particular, are systems, methods, and apparatuses that apply an electrical field and acoustic energy to an aqueous suspension comprising microorganisms as the aqueous suspension follows a flow path to cause aggregation of the microorganisms. The electrical field may be continuous or pulsed. In some embodiments, the flow path for the aqueous suspension may vary. | 01-16-2014 |
20140017756 | ELECTRICAL MICROORGANISM AGGREGATION METHODS - Described herein are systems, methods, and apparatuses for aggregating microorganism in an aqueous suspension. In particular, are systems, methods, and apparatuses that apply an electrical field to an aqueous suspension comprising microorganisms as the aqueous suspension follows a flow path to cause aggregation of the microorganisms. The electrical field may be continuous or pulsed. In some embodiments, the flow path for the aqueous suspension may vary. | 01-16-2014 |
20140017757 | PATTERNED ELECTRICAL PULSE MICROORGANISM AGGREGATION - Described herein are systems, methods, and apparatuses for aggregating microorganism in an aqueous suspension. In particular, are systems, methods, and apparatuses that apply an electrical field to an aqueous suspension comprising microorganisms as the aqueous suspension follows a flow path to cause aggregation of the microorganisms. The electrical field may comprise different types of pulses. In some embodiments, the flow path for the aqueous suspension may vary. | 01-16-2014 |
20140017758 | TUBULAR ELECTRO-ACOUSTIC AGGREGATION DEVICE - Described herein are systems, methods, and apparatuses for aggregating microorganism in an aqueous suspension. In particular, are systems, methods, and apparatuses that apply an electrical field and/or acoustic energy to an aqueous suspension comprising microorganisms as the aqueous suspension follows a flow path to cause aggregation of the microorganisms. The electrical field may be continuous or pulsed. In some embodiments, the flow path for the aqueous suspension may vary. | 01-16-2014 |
20140017759 | RECTANGULAR CHANNEL ELECTRO-ACOUSTIC AGGREGATION DEVICE - Described herein are systems, methods, and apparatuses for aggregating microorganism in an aqueous suspension. In particular, are systems, methods, and apparatuses that apply an electrical field and/or acoustic energy to an aqueous suspension comprising microorganisms as the aqueous suspension follows a flow path to cause aggregation of the microorganisms. The electrical field may be continuous or pulsed. In some embodiments, the flow path for the aqueous suspension may vary. | 01-16-2014 |
20140017760 | TUNABLE ELECTRICAL FIELD FOR AGGREGATING MICROORGANISMS - Described herein are systems, methods, and apparatuses for aggregating microorganism in an aqueous suspension. In particular, are systems, methods, and apparatuses that apply an electrical field to an aqueous suspension comprising microorganisms as the aqueous suspension follows a flow path to cause aggregation of the microorganisms. The electrical field may be continuous or pulsed. In some embodiments, the flow path for the aqueous suspension may vary. In some embodiments, the cross-sectional area of the electrical field may be tuned. | 01-16-2014 |
20140030786 | COMPOSITIONS AND METHODS FOR TREATING AND DIAGNOSING CANCER - The present invention relates to compositions and methods for characterizing, treating and diagnosing cancer. In particular, the present invention provides a cancer stem cell profile, as well as novel stem cell cancer markers useful for the diagnosis, characterization, prognosis and treatment of cancer and in particular the targeting of solid tumor stem cells. | 01-30-2014 |
20140038259 | FLUIDIC IN-LINE PARTICLE IMMOBILIZATION AND COLLECTION SYSTEMS AND METHODS FOR USING THE SAME - Fluidic sorting systems configured to immobilize, and optionally concentrate and/or analyze, one or more particles within the system are provided. Aspects of the systems include a flow-through chamber and an immobilization component configured to immobilize, preferably reversibly, a particle within the flow-through chamber. Optionally, the systems include an analysis component configured to optically analyze an immobilized particle within the flow-through chamber. In certain aspects, the systems are configured to collect one or more particles from the flow-through chamber for subsequent analysis, experimentation, and/or use. Also provided are methods, components and kits for reversibly immobilizing, and optionally analyzing, one or more particles within a fluidic sorting system. | 02-06-2014 |
20140065688 | METHODS AND COMPOSITIONS FOR MAGNETOPHORETIC SEPARATION OF BIOLOGICAL MATERIALS - Disclosed herein are devices for the magnetophoretic separation of target biological materials including a separation chamber that has a plurality of channels, and one or more wires carrying a current, the wires generating a magnetic force that deflects magnetically-labeled target biological materials into a buffer stream. In addition, methods of separating target biological materials from non-target biological materials in a sample are disclosed. Finally, methods for constructing a magnetophoretic separation device are disclosed. | 03-06-2014 |
20140093933 | MICROBIAL CELL AND PARTICLE SELECTION SYSTEM AND METHOD OF USE - The invention comprises two key components: dielectrophoresis (DEP) and reversible binding surfaces. DEP has become an important tool for trapping dielectric particles. Moreover, DEP can manipulate cell movement as dictated by the intrinsic dielectric constant of the cell without modification. DEP therefore provides a mechanism by which to force targets in a flow channel to a reversible binding surface. By building selectivity into the binding surface, the capacity to choose which targets can be held after the dielectric field is turned off, providing a separation strategy that does not suffer from fouling issues, as large foulants can freely pass over the surface through the flow channel. | 04-03-2014 |
20140134698 | METHOD OF EXTRACTING NEURAL STEM CELLS USING NANOPARTICLES - A method of extracting neural stem cells from a living subject, comprising the steps of introducing magnetic nanoparticles into the subject, targeting the neural stem cells with the magnetic nanoparticles to form magnetic nanoparticle-targeted cells, isolating the magnetic nanoparticle-targeted cells, extracting the magnetic nanoparticles-targeted cells from the subject. | 05-15-2014 |
20140170726 | PHOTOBIOREACTOR - In the present invention, a photobioreactor and process for producing and harvesting microalgae involves a vessel for cultivating microalgae that is at least partially transparent to admit light into the vessel. At least a portion of the transparent part of the vessel is coated with a transparent conductive oxide (TCO) layer. The TCO layer is transparent to visible light necessary for algae growth, but is opaque to infrared light thereby reducing thermal heating load in the photobioreactor. The TCO layer also acts as an electrode, which when combined with a counter-electrode can provide a potential difference across at least a portion of the interior of the vessel between the TCO layer and the counter-electrode. The electrode arrangement can be utilized in an electrochemical process (e.g. electrodeposition and/or electroflotation) to dewater and harvest the microalgae in the same apparatus as the microalgae was cultivated. | 06-19-2014 |
20140199747 | MAGNETIC PLATFORMS FOR BIOMOLECULE TRAPPINGS, MANIPULATIONS, AND SORTING - A magnetic platform is provided and includes a patterned array of discrete magnetic elements positioned on a substrate, a plurality of first electromagnets for creating a first magnetic field substantially in the plane of the substrate, an electromagnetic coil for creating a second magnetic field substantially perpendicular to the plane of the substrate, and a control device for controlling the application of the magnetic fields. Processes for manipulating, transporting, separating and sorting micro- or nano-scale particles and biomolecules are also described. | 07-17-2014 |
20140242663 | MAGNETIC SEPARATION OF ALGAE - Described herein are methods and systems for harvesting, collecting, separating and/or dewatering algae using iron based salts combined with a magnetic field gradient to separate algae from an aqueous solution. | 08-28-2014 |
20140248679 | Apparatus and Methods to Enhance Field Gradient For Magnetic Rare Cell Separation - The present invention discloses apparatus and methods to enhance magnetic field gradient for magnetic cell separation. One preferred embodiment in accordance with the invention comprises an electromagnet with an open gap formed between two pole tips and two driving coils with independently controlled electrical current magnitude and direction. In the specific case when two magnetic pole tips emanate magnetic fields with different magnitude and in opposite direction, the field gradient, and therefore the magnetic force exerted on MNPs, is advantageously enhanced. Spatial uniformity of the magnetic field gradient is also enhanced. Preferred embodiments are capable of magnetic cell separation for both positive and negative cell selection, as well as in-vitro capture and separation in miniaturized form of embodiments. | 09-04-2014 |
20140302580 | Manipulation of Beads in Droplets and Methods for Manipulating Droplets - The invention provides a method of dispersing or circulating magnetically responsive beads within a droplet in a droplet actuator. The invention, in one embodiment, makes use of a droplet actuator with a plurality of droplet operations electrodes configured to transport the droplet, and a magnetic field present at a portion of the plurality of droplet operations electrodes. A bead-containing droplet is provided on the droplet actuator in the presence of the uniform magnetic field. Beads are circulated in the droplet during incubation by conducting droplet operations on the droplet within a uniform region of the magnate field. Other embodiments are also provided. | 10-09-2014 |
20140377834 | FLUID DYNAMIC SONIC SEPARATOR - An acoustic standing wave is utilized to separate components from a multi-component fluid, such as animal cells from fluid-cell mixture, in a fluid flow scheme with an acoustophoresis device. For example, the flow scheme and device allows for trapping of falling cells as the cells coalesce, agglomerate, and the weight of the agglomerated mass overcomes the drag and ultrasonic standing wave forces in the device. | 12-25-2014 |
20150050710 | LIVING FATTY MATERIAL FROM WHICH IMMUNITY IS REMOVED AND METHOD FOR MANUFACTURING SAME - The present invention relates to a living fatty material from which immunity is removed, and a method for manufacturing the same, and more specifically, to a living fat tissue from which immunity is removed and to a method for manufacturing the same, comprising the steps of collecting fat tissues; irradiating the fat tissues with 20 to 500 kGy of gamma (γ) rays; and applying centrifugal separation of the fat tissues irradiated with gamma rays. | 02-19-2015 |
20150064764 | TRANSPORTING, TRAPPING AND ESCAPPING MANIPULATION DEVICE FOR MAGNETIC BEAD BIOMATERIAL COMPRISING MICRO-MAGNETOPHORETIC CIRCUIT - A device for transporting, trapping and escaping a single biomaterial using a magnetic structure, and a method of transporting, trapping and escaping of the single biomaterial using the same are provided, and a method is provided for controlling movement and direction of the single biomaterial including soft magnetic micro structure and magnetic structure in a linear, square storage, apartment type, radial soft magnetic micro structure. Accordingly, the device for transporting, trapping and escaping a single biomaterial and the method for transporting, trapping and escaping single biomaterial using the same can control movement on the lap-on-a-chip with increased precision and ease, by using magnetic force, and thus can be advantageously used in the field of magneto-resistive sensor, or categorization of single cells or biomolecules. | 03-05-2015 |
20150104845 | ACOUSTIC MANIPULATION PROCESS AND ACOUSTIC MANIPULATION DEVICE - An acoustic manipulation process and acoustic manipulation device are disclosed. The acoustic manipulation process includes providing a device having a pathway positioned to receive a flow of a particle-containing fluid, transporting the particle-containing fluid into the pathway, and applying standing surface acoustic waves to the particle-containing fluid while the particle-containing fluid is flowing through the pathway. The applying of the standing surface acoustic waves to the particle-containing fluid includes nodes and anti-nodes of the standing surface acoustic waves extending through the particle-containing fluid. The acoustic manipulation device includes a pathway positioned to receive a flow of a particle-containing fluid, and a mechanism for generating and applying standing surface acoustic waves to the particle-containing fluid while the particle-containing fluid is flowing through the pathway. | 04-16-2015 |
20150111276 | BLOOD CELL SORTING METHODS AND SYSTEMS - The invention relates to methods of isolating white blood cells (WBCs) from a sample, e.g., whole blood, using magnetic particles that specifically bind to WBCs and a series of specific steps and conditions. The methods can include one or more of decreasing the viscosity of the sample prior to WBC isolation, agitating the sample at specified frequencies, and/or using a sample container arranged such that all of the sample is placed in close proximity (e.g., within 5, 2, 1, or 0.5 mm) to the source of the magnetic field. The new methods provide for isolation of WBC preparations with high yield, purity, and viability. The methods are designed for compatibility with automation protocols for rapid processing of multiple samples. | 04-23-2015 |
20150111277 | Cell Washing Device Using a Wave - A system is disclosed for washing a selected component and removing the selected component from a wash material. The selected component may include red blood cells that are washed to remove a rejuvenating solution. The red blood cells may then be removed with various systems, such as a standing acoustic wave system from the wash solution. Pumps and flow restrictors that provide steady flow from pumps that generate pulsed flow are also disclosed. | 04-23-2015 |
20150118728 | APPARATUS AND METHOD FOR SEPARATING A BIOLOGICAL ENTITY FROM A SAMPLE VOLUME - According to embodiments of the present invention, an apparatus for separating a biological entity from a sample volume is provided. The apparatus includes an input chamber including an inlet configured to receive the volume sample, and an outlet, at least one magnetic element adjacent a portion of the input chamber, the magnetic element configured to provide a magnetic field in a vicinity of the portion of the input chamber to trap at least some leukocytes from the sample volume, and a filter in fluid communication with the outlet, the filter configured to separate the biological entity. According to further embodiments of the present invention, a method for separating a biological entity from a sample volume is also provided. | 04-30-2015 |
20150322424 | BLOOD CELL SORTING METHODS AND SYSTEMS - The invention relates to methods of isolating white blood cells (WBCs) from a sample, e.g., whole blood, using magnetic particles that specifically bind to WBCs and a series of specific steps and conditions. The methods can include one or more of decreasing the viscosity of the sample prior to WBC isolation, agitating the sample at specified frequencies, and/or using a sample container arranged such that all of the sample is placed in close proximity (e.g., within 5, 2, 1, or 0.5 mm) to the source of the magnetic field. The new methods provide for isolation of WBC preparations with high yield, purity, and viability. The methods are designed for compatibility with automation protocols for rapid processing of multiple samples. | 11-12-2015 |
20150329851 | BINDING A TARGET SUBSTANCE - Magnetic particles capable of binding a target substance, which comprise a magnetic material and a matrix material, wherein the magnetic material is remanent upon exposure to a magnetic field and the matrix material has a surface comprising functional groups which promote disaggregation of the particles in the presence of a liquid phase. | 11-19-2015 |
20160089620 | ACOUSTOPHORETIC CLARIFICATION OF PARTICLE-LADEN NON-FLOWING FLUIDS - Acoustophoretic devices for separating particles from a non-flowing host fluid are disclosed. The devices include a substantially acoustically transparent container and a separation unit, with the container being placed within the separation unit. An ultrasonic transducer in the separation unit creates a planar or multi-dimensional acoustic standing wave within the container, trapping particles disposed within the non-flowing fluid and causing them to coalesce or agglomerate, then separate due to buoyancy or gravity forces. | 03-31-2016 |
20160102284 | ACOUSTIC PERFUSION DEVICES - Acoustic perfusion devices for separating biological cells from other material in a fluid medium are disclosed. The devices include an inlet port, an outlet port, and a collection port that are connected to an acoustic chamber. An ultrasonic transducer creates an acoustic standing wave in the acoustic chamber that permits a continuous flow of fluid to be recovered through the collection port while keeping the biological cells within the acoustic chamber to be returned to the bioreactor from which the fluid medium is being drawn. | 04-14-2016 |
20160109338 | Manipulation of Beads in Droplets and Methods for Manipulating Droplets - The invention provides a method of circulating magnetically responsive beads within a droplet in a droplet actuator. The invention also provides methods for splitting droplets. The invention, in one embodiment, makes use of a droplet actuator with top and bottom substrates, a plurality of magnetic fields respectively present proximate the top and bottom substrates, wherein at least one of the magnet fields is selectively alterable, and a plurality of droplet operations electrodes positioned along at least one of the top and bottom surfaces. A droplet is positioned between the top and bottom surfaces and at least one of the magnetic fields is selectively altered. | 04-21-2016 |
20160115436 | DIGITAL MICROFLUIDIC PLATFORM FOR CREATING, MAINTAINING AND ANALYZING 3-DIMENSIONAL CELL SPHEROIDS - The invention provides a microfluidic system for forming and/or analyzing multi-cellular spheroids in a hanging drop cell culture. Embodiments of the invention include microfluidic (DμF) systems capable of creating and supporting hanging droplets of cell culture media for the purpose of initiating and maintaining the growth of three-dimensional, multi-cellular spheroids. The microfluidic systems disclosed herein are compatible with numerous analysis modalities including microscopy, mass spectrometry, and fluorescence spectroscopy. | 04-28-2016 |
20160122745 | METHOD AND SYSTEM FOR AQUACULTURE OR REDUCING BIOFOULING - An aquaculture method and a method for reducing biofouling of vessels or submerged structures, the method comprising broadcasting into the marine environment sound at a frequency or in a frequency range effective to attract one or more marine species to the sound source. | 05-05-2016 |
20160137967 | CULTURE DEVICE, CULTURE SYSTEM, AND CULTURE METHOD - This culture device comprises: a culture container which houses cells, magnetic particles and a culture medium; a temperature adjustment unit for adjusting the temperature of the culture container; a magnet which is provided to the outside of the culture container; a magnetic force adjustment unit for adjusting the magnetic force of the magnet; and a control unit for controlling the operation of the magnetic force adjustment unit. The magnetic force adjustment unit adjusts the magnetic force of the magnet, thereby holding magnetic particles and cells in a predetermined region within the culture container, or dispersing the magnetic particles and cells within the culture container. | 05-19-2016 |
20160145600 | MAGNETIC MICROCARRIERS - Magnetic microcarrier beads have a particle size of 1 to 1000 micrometers and include a composite core and a polymer coating that surrounds and encapsulates the core. The composite core includes magnetic particles embedded within an indigestible polymer matrix. The coating is a digestible or indigestible polymer that facilitates cell adhesion to the surface of the beads during cell culture. Magnetic force can be used to agitate the microcarrier beads during cell culture as well as to separate the beads from cultured cells or processed bio-media. | 05-26-2016 |
20160177030 | PHOTODEGRADABLE CROSS-LINKING AGENT, PHOTODEGRADABLE GEL, CELL CULTURE INSTRUMENT, CELL ARRANGEMENT-SORTING APPARATUS, CELL ARRANGEMENT METHOD, CELL SORTING METHOD, TISSUE FORMING METHOD, AND TISSUE | 06-23-2016 |
20160186165 | Multisort cell separation method - The invention is directed to a method for enriching target cells from a sample of cells characterized by:
| 06-30-2016 |
20170234781 | MEMBRANE-ASSISTED PURIFICATION | 08-17-2017 |
20220135931 | FLOW-THROUGH PARAMAGNETIC PARTICLE-BASED CELL SEPARATION AND PARAMAGNETIC PARTICLE REMOVAL - The present disclosure relates to systems and methods for flow-through separation of paramagnetic particle-bound cells in a cell suspension containing both bound and unbound cells as well as systems and methods for removing paramagnetic particles from paramagnetic particle-bound cells or from a cell suspension with unbound cells. It further relates to a flow-through magnetic separation/debeading module and a flow-through spinning membrane debeading module. | 05-05-2022 |