Class / Patent application number | Description | Number of patent applications / Date published |
435461000 | Involving electroporation | 28 |
20080206871 | Large-Scale Production of Recombinant Transmembrane and Cytosolic Proteins - The present invention provides a method for producing large quantities of transmembrane and cytosolic proteins in a mammalian muscle cell. The method involves transfecting skeletal muscle cells in vivo with nucleic acids encoding the proteins by electroporation. The invention results in production of the desired protein on the order of about 2-3 magnitudes more as compared to standard methods, allowing for various biological uses including purification and crystallization. | 08-28-2008 |
20080268542 | High Efficiency Electroporation Buffer - Electroporation of mammalian cells is performed to high efficiency by use of a buffer solution containing trehalose, sucrose, or both, in addition to an inorganic phosphate buffer, an organic sulfonic acid buffer, a halide salt of an alkali or alkaline earth metal, a chelating agent, an alkyl methyl sulfoxide, and a nucleotide triphosphate, with substantially no sodium. This buffer solution is effective both in the electroporation of cells that are suspended in the buffer solution and in the electroporation of cells that are fixed on a surface. | 10-30-2008 |
20080274549 | System and Method For Electroporating a Sample - A system and method are described for electroporating a sample that utilizes one or more sets of electrodes that are spaced apart in order to hold a surface tension constrained sample between the electrodes. The first electrode is connected to the lower body of the system while the second electrode is connected to the upper body. Both electrodes are connected to a pulse generator. Each electrode has a sample contact surface such that the first electrode and the second electrode may be positioned to hold a surface tension constrained sample between the two sample contact surfaces and the sample may receive a selected electric pulse. | 11-06-2008 |
20090053813 | MULTIPLEXED ELECTROPORATION APPARATUS - Described herein are platforms and consumables for performing gene/siRNA/protein/peptide delivery screens in high throughput, including an automation-compatible transfection methodology that can be used to gain entry of oligonucleotides, proteins, peptides and other non-permeable molecules (e.g., some small organic compounds) into cells. Electrical stimulation is provided to cells, e.g., neurons or myocytes, in culture through application of pulsed fields directly to the cells in culture. The plate design is used in conjunction with a custom-designed circuit that allows the user to select pulse type, duration, etc. | 02-26-2009 |
20090124013 | Stem-Like Cells - A method for the production and use of multipotential stem-like cells is disclosed. The preparation utilized in this method is characterized by the contact of low level electrical currents with cultures of fibroblasts or other -blast cells enriched by fibroblast growth factor and other nutrients. The electrical current is conducted by means of silver electrode(s) brought into contact with the fibroblast preparation or other -blast cell preparation cultured for that purpose. The cells of the preparation may be used in applications that require the use of stem cells, including therapeutic applications, without the need for human fetuses or human umbilical cords or penetrating human bones to extract bone marrow. The cells thus produced have the ability to redifferentiate into endoderm, ectoderm and mesoderm to form any tissue of the body except the lens of the eye. Any cell found in the blood may be copied and multiplied. Any tissue of the body may be copied and multiplied with the lone exception of the lens of the eye as noted above. | 05-14-2009 |
20090269851 | USE OF DISK SURFACE FOR ELECTROPORATION OF ADHERENT CELLS - Adherent cells on the surface of a disk are transfected by electroporation between coaxial circular cylinders with electrodes on the opposing surfaces on either side of the annular space between the cylinders by placing a buffer solution containing the transfecting species in the annular space over the cell and applying an electric potential between the electrodes. | 10-29-2009 |
20100136695 | DOUBLE-STRANDED OLIGONUCLEOTIDES - Antisense sequences, including duplex RNAi compositions, which possess improved properties over those taught in the prior art are disclosed. The invention provides optimized antisense oligomer compositions and method for making and using the both in in vitro systems and therapeutically. The invention also provides methods of making and using the improved antisense oligomer compositions. | 06-03-2010 |
20100227408 | Method and apparatus for avalanche-mediated transfer of agents into cells - The present invention provides a method and apparatus for transferring an agent into a cell. The method includes the steps of providing an agent outside of a cell and generating a vapor bubble and a plasma discharge between an avalanche electrode and a conductive fluid surrounding the cell. The vapor bubble and plasma discharge generate a mechanical stress wave and an electric field, respectively. The combination of this mechanical stress wave and electric field results in permeabilization of the cell, which in turn results in transfer of the agent into the cell. | 09-09-2010 |
20100285590 | Homologous Recombination in Multipotent Adult Progenitor Cells - The invention relates to methods of altering gene expression by homologous recombination in a multipotent adult progenitor cell (MAPC). In particular, methods of producing a recombinant MAPC, of correcting a genetic defect in a mammal, of providing a functional and/or therapeutic protein to a mammal, and of transforming a MAPC are provided. MAPCs containing an erogenous DNA as well as recombinant MAPCs and their differentiated progeny are also provided. | 11-11-2010 |
20110091974 | Conductive Substrate and Method for Introducing Nucleic Acid - A conductive substrate for introducing a nucleic acid into a cell, which comprises a carbon nanotube with a carboxyl group, and a nucleic acid, the carbon nanotube and the nucleic acid being loaded on an electrode substrate with a cationic surface. | 04-21-2011 |
20110117654 | BUFFER SOLUTION FOR ELECTROPORATION AND A METHOD COMPRISING THE USE OF THE SAME - A method for introducing biologically active molecules into animal or human cells using an electric current includes suspending the cells and dissolving the biologically active molecules in a buffer solution including HEPES and at least 10 mmol×1 | 05-19-2011 |
20110229972 | COMPOSITIONS AND METHODS FOR MATERIAL TRANSFER INTO CELLS - Methods for material transfer into a cell are provided according to the present invention which include electroporation of the cell in the presence of the material, such as nucleic acids, and 2,3-butanedione monoxime; and lipofection with a complex of a lipid-based carrier, such as liposomes, and the material, in the presence of 2,3-butanedione monoxime. | 09-22-2011 |
20110236979 | Apparatus for Generating Electrical Pulses and Methods of Using Same - A method and apparatus are provided for delivering an agent into a cell through the application of nanosecond pulse electric fields (“nsPEF's”). The method includes circuitry for delivery of an agent into a cell via known methods followed by the application of nanosecond pulse electric fields to said cell in order to facilitate entry of the agent into the nucleus of the cell. In a preferred embodiment, the present invention is directed to a method of enhancing gene expression in a cell comprising the application of nanosecond pulse electric fields to said cell. An apparatus for generating long and short pulses according to the present invention is also provided. The apparatus includes a pulse generator capable of producing a first pulse having a long duration and low voltage amplitude and a second pulse having a short duration and high voltage amplitude. | 09-29-2011 |
20120315704 | APPARATUS FOR GENERATING ELECTRICAL PULSES AND METHODS OF USING THE SAME - A method and apparatus are provided for delivering an agent into a cell through the application of nanosecond pulse electric fields (“nsPEF's”). The method includes circuitry for delivery of an agent into a cell via known methods followed by the application of nanosecond pulse electric fields to said cell in order to facilitate entry of the agent into the nucleus of the cell. In a preferred embodiment, the present invention is directed to a method of enhancing gene expression in a cell comprising the application of nanosecond pulse electric fields to said cell. An apparatus for generating long and short pulses according to the present invention is also provided. The apparatus includes a pulse generator capable of producing a first pulse having a long duration and low voltage amplitude and a second pulse having a short duration and high voltage amplitude. | 12-13-2012 |
20130023052 | MANIPULATOR SYSTEM AND MANIPULATION METHOD OF MICROMANIPULATION TARGET OBJECT - A manipulator system and a manipulation method of a micromanipulation target object, which are capable of automatically executing a variety of operations about a micromanipulation target object such as an ovum that have hitherto required a skilled technique, are disclosed. A manipulator system includes: a microscope unit observing a micromanipulation target object; a pair of manipulators being electrically drivable in X-, Y- and Z-axis three directions for manipulating the micromanipulation target object; a sample stage receiving a placement of the micromanipulation target object and being electrically drivable in X-Y axis plane directions; a control unit controlling the drive of the manipulators and the drive of the sample stage; and a manipulation unit driving the manipulators and the sample stage via the control unit, wherein a manipulation tool is fitted to the manipulator, the control unit gets stored with positional information of the manipulation tool with respect to a plurality of regions set for the micromanipulation target object, and at least one of relative movements between the regions of the manipulation tool by the sample stage and/or the manipulator is automatically conducted based on the stored positional information. | 01-24-2013 |
20130065309 | Preparation of Negative-Stranded RNA Viruses By Electroporation - The present invention encompasses methods of preparing non-segmented negative-stranded RNA viruses from cells utilizing electroporation. | 03-14-2013 |
20130122592 | FOREIGN GENE TRANSFER METHOD BY ELECTROPORATION TECHNIQUE - Provided is a method for transferring an extraneous gene by an electroporation technique, which is applicable to a wide range of animal cells and is extremely remarkably improved in viability and gene transferring rate. Also provided is a method for transferring an extraneous gene by an electroporation technique with high viability and gene transferring rate even in the case where no specialized transferring buffer is used. Also provided are: a method for transferring an extraneous gene by an electroporation technique, which is remarkably improved in viability and gene transferring rate, the method including continuously applying, to an animal cell, a first electric pulse (strong electric pulse) and a second electric pulse (weak electric pulse) under specific conditions; and a method for transferring an extraneous gene by an electroporation technique, in which a liquid medium capable of being used for culturing of the animal cell is used as a transferring buffer. | 05-16-2013 |
20130177988 | CYTOPLASM TO ORGANELLE DELIVERY SYSTEM AND ASSOCIATED METHODS - Systems, devices, and methods for delivering a biological material into an organelle of a cell are provided. In one aspect, for example, a method for introducing biological material into an organelle of a cell can include bringing into proximity outside of a cell a lance and a preselected biological material, charging the lance with a polarity and a charge sufficient to electrically associate the preselected biological material with a tip portion of the lance, and penetrating an outer portion of the cell with the lance and directing and inserting the lance into the cell but outside of the organelle. The method can further include discharging the lance to release at least a portion of the biological material, charging the lance with an opposite polarity and charge sufficient to electrophoretically drive at least a portion of the biological material into the organelle, and withdrawing the lance from the cell. | 07-11-2013 |
20140057355 | SOMATIC CELL REPROGRAMMING - The present invention relates to methods for reprogramming a somatic cell to pluripotency by administering into the somatic cell at least one or a plurality of potency-determining factors. The invention also relates to pluripotent cell populations obtained using a reprogramming method. | 02-27-2014 |
20140127813 | CYTOPLASMA TO ORGANELLE DELIVERY SYSTEM AND ASSOCIATED METHODS - Systems, devices, and methods for delivering a biological material into an organelle of a cell are provided. In one aspect, for example, a method for introducing biological material into an organelle of a cell can include bringing into proximity outside of a cell a lance and a preselected biological material, charging the lance with a polarity and a charge sufficient to electrically associate the preselected biological material with a tip portion of the lance, and penetrating an outer portion of the cell with the lance and directing and inserting the lance into the cell but outside of the organelle. The method can further include discharging the lance to release at least a portion of the biological material, charging the lance with an opposite polarity and charge sufficient to electrophoretically drive at least a portion of the biological material into the organelle, and withdrawing the lance from the cell. | 05-08-2014 |
20140193913 | METHODS AND COMPOSITIONS FOR HOMOLOGOUS RECOMBINATION IN HUMAN CELLS - The methods and compositions described herein are based, in part, on the discovery of a stem cell state in human cells that resembles the morphology observed in murine-derived stem cells. Induction of such a state in human stem cells permits an increase in the efficiency of homologous recombination. Thus, the methods and compositions described herein relate to cells and methods for increasing the efficiency of homologous recombination in human stem cells. | 07-10-2014 |
20140256047 | DOSE AND LOCATION CONTROLLED DRUG/GENE/PARTICLE DELIVERY TO INDIVIDUAL CELLS BY NANOELECTROPORATION - A simple and low cost method of producing sealed arrays of laterally ordered nanochannels interconnected to microchannels of tunable size, over large surface areas, is disclosed. The method incorporates DNA combing and subsequent imprinting. Associated micro and macroscale inlets and outlets can be formed in the same process or manufactured later in low cost, non-cleanroom techniques. The techniques embrace two procedures, generating DNA nanostrands and translating these strands into nanoscale constructs via imprinting. Devices incorporating the novel arrays have a first microchannel, a second microchannel and a nanochannel that is substantially linear and which defines an axis. The nanochannel is connected at its open ends to the microchannels, which are aligned along the axis. Methods for precise dose delivery of agents into cells employing the devices in nanoelectroporation methods are also disclosed. | 09-11-2014 |
20140273229 | INTRACELLULAR DELIVERY AND TRANSFECTION METHODS AND DEVICES - Embodiments of the present disclosure provide a multistage procedure for treatment of biological samples (e.g., living cells with membranes, and the like) with a substance (e.g., a drug, DNA, RNA, plasmids, and other biomolecules or materials) to achieve more efficacious intracellular delivery and transfection. | 09-18-2014 |
20150368604 | FOREIGN SUBSTANCE INTRODUCTION DEVICE AND METHOD OF PRODUCING CELLS WITH INTRODUCED FOREIGN SUBSTANCE - An exogenous substance transfer apparatus that introduces an exogenous substance into a small amount of cells efficiently and at low cost by electrical action and a method for manufacturing an exogenous substance-bearing cell that is able to manufacture many kinds of exogenous substance-bearing cells at low cost are provided. | 12-24-2015 |
20160102131 | Consumable Cryopreserved Cells Transiently Overexpressing Gene(s) Encoding Drug Transporter Protein(s) and/or Drug Metabolizing Enzyme(s) - The present invention discloses cryopreserved recombinant cells for screening drug candidates that transiently overexpress one or more drug transporter proteins and/or drug metabolizing enzymes. Advantageously, such cells provide a cost-efficient consumable product that streamlines the process of screening whether drug candidates are substrates or inhibitors of drug transporter proteins and/or drug metabolizing enzymes. | 04-14-2016 |
20160122721 | USE OF RNA FOR REPROGRAMMING SOMATIC CELLS - The present invention provides methods for de-differentiating somatic cells into stem-like cells without generating embryos or fetuses. More specifically, the present invention provides methods for effecting the de-differentiation of somatic cells to cells having stem cell characteristics, in particular pluripotency, by introducing RNA encoding factors inducing the de-differentiation of somatic cells into the somatic cells and culturing the somatic cells allowing the cells to de-differentiate. | 05-05-2016 |
20190144886 | METHOD FOR INTRODUCING NUCLEIC ACIDS INTO A CELL | 05-16-2019 |
20220136014 | CRISPR SYSTEMS WITH ENGINEERED DUAL GUIDE NUCLEIC ACIDS - The present invention relates to an engineered Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) system comprising engineered dual guide nucleic acids (e.g., RNAs) capable of activating a CRISPR-Associated (Cas) nuclease, such as a type V-A Cas nuclease. Also provided are methods of targeting, editing, and/or modifying a nucleic acid using the engineered CRISPR system, and compositions and cells comprising the engineered CRISPR system. | 05-05-2022 |