MICROFLUIDIC ELECTROPORATION DEVICE
    2.
    发明公开

    公开(公告)号:US20240327774A1

    公开(公告)日:2024-10-03

    申请号:US18128441

    申请日:2023-03-30

    Abstract: A microfluidic electroporation device for exogenous molecules transfection is disclosed. The microfluidic electroporation device includes an electroporation chamber assembly, an ultrasound vibrator, and a controller. The electroporation chamber assembly includes an input chamber for exogenous molecules, a MEMS filter, an activation chamber and a MEMS plate. The MEMS plate holds cells within individual cavity for electroporation. Both the MEMS filter and the MEMS plate are made of semiconductor process by wet etching and/or ICP dry etching with V-shaped cavities. The top surfaces of the MEMS filter and the MEMS plate are coated with metal layer for applying electric field during the electroporation process. The electroporation chamber assembly is attached to an ultrasound vibrator which is operated intermittently to allow cells to be fixed in the cavity of the MEMS plate during electroporation process and popped out for collection after electroporation process.

    Electroporation with active compensation

    公开(公告)号:US12006507B2

    公开(公告)日:2024-06-11

    申请号:US16935987

    申请日:2020-07-22

    Applicant: NantCell, Inc.

    Abstract: An apparatus for electroporating cells with a cargo includes electrodes defining a path for a fluid including the cells and the cargo to flow, a power source coupled across the electrodes, and a control circuit. In some examples, the control circuit is configured to detect a decrease in an induced current due to an increase in a resistance between the electrodes, and control the power source to increase the induced current to maintain an electric field between the electrodes. A future value of the resistance between the electrodes may be predicted based on previous values of the resistance. In other examples, the control circuit is configured to detect parameters of the fluid flowing between the electrodes, and control the power source to generate or stop generating electrical pulses in response to detecting the parameters. Other example apparatuses, and methods of electroporating cells with a cargo is also disclosed.

    METHOD AND DEVICE FOR PORATING AND LOADING CELLS, ESPECIALLY IMMUNOCOMPETENT CELLS

    公开(公告)号:US20240182838A1

    公开(公告)日:2024-06-06

    申请号:US18524718

    申请日:2023-11-30

    Inventor: Klaus SPOHR

    CPC classification number: C12M35/04 C12M27/20 C12M35/02 C12N13/00

    Abstract: A method for porating cells for loading with a substance, preferably nuclides for radiotherapy, performs porating in a porating device with cells to be porated in a liquid with the substance. The cell membranes are permeabilized by sonoporation or laser poration, then the cells are incubated in a porating device incubation section. Moreover, a device for porating cells, in particular by sonoporation or laser porating, and for loading cells, particularly immunocompetent cells, in particular γδ T cells, includes inlet and outlet openings for a cell solution with cells to be porated and a substance to be taken up by the cells as a load and preferably microbubbles. A poration arrangement extending between the openings has a collector at the inlet opening for collecting cell solution and a reactor in flow connection with the collector. Inside the reactor the cell membranes may be porated and the cells may uptake the load.

    Shock tube and cell electroporation device with the shock tube

    公开(公告)号:US11965149B2

    公开(公告)日:2024-04-23

    申请号:US16586989

    申请日:2019-09-29

    Applicant: Jian Chen

    Inventor: Jian Chen

    Abstract: The shock tube comprises a tube, a first electrode, a second electrode and a stopple, wherein the tube is internally provided with a cavity for accommodating a target liquid sample. The first electrode is arranged at one end of the tube. The second electrode is arranged in the stopple, and the outer end of the second electrode can be electrically connected with the exterior via an opening of the stopple. The stopple is internally provided with an elastic piece connected with the second electrode. The outer side of the elastic piece is connected with the stopple, and the inner side of the elastic piece is connected with the second electrode. The invention further provides a cell electroporation device where the shock tube can be placed.

    Electrical stimulation device
    8.
    发明授权

    公开(公告)号:US11952565B2

    公开(公告)日:2024-04-09

    申请号:US17147662

    申请日:2021-01-13

    CPC classification number: C12M35/02

    Abstract: An electrical stimulation device includes a terminal electrode having an opening at a center thereof, a ground electrode having an area smaller than that of the terminal electrode, and a power source connected to the terminal electrode and the ground electrode and configured to apply an electrical stimulus to an object disposed between the terminal electrode and the ground electrode by applying a terminal voltage to the terminal electrode.

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