C12N13/00

Microfluidic devices and methods for high throughput electroporation

Devices for high throughput cell electroporation include a trapping component that at least partially defines an upper boundary of a microfluidic chamber. A cell trap array is patterned on the underside of the trapping component, and a channeling component is positioned beneath the trapping component. The channeling component includes a vertically oriented nanochannel array. The trapping component and the channeling component are positioned such that a given nanochannels is positioned beneath a cell trap. During use, fluid flow holds trapped cells in secure contact with the nanochannels beneath the cell trap. The device further includes upper and lower electrode layers for generating an electric field to electroporate trapped cells via the nanochannel array. A reservoir positioned beneath the channeling component can be filled transfection reagent solution. During electroporation, the transfection reagent solution travels through the nanochannel array during to transfect the trapped cells.

METHODS FOR CELL-FREE PROTEIN EXPRESSION

Disclosed is a method for the cell-free expression of peptides or proteins in a liquid filled digital microfluidic device. The droplets having the components required for cell-free protein expression can be manipulated by electrokinesis in order to enhance levels of protein expression in the droplets.

GENETICALLY-TARGETED CHEMICAL ASSEMBLY: BUILDING FUNCTIONAL STRUCTURES AND MATERIALS IN LIVING CELLS, TISSUES, AND ANIMALS

Compositions and methods are provided for genetically modifying cells to guide in situ chemical synthesis of electroactive, conductive, or insulating polymers on plasma membranes, organelle membranes, or subcellular surfaces of cells. In particular, compositions and methods are provided for genetically modifying excitable cells such as neurons, muscle cells, and endocrine cells to guide in situ chemical synthesis of polymers on the extracellular side of the plasma membrane. The subject methods can be used in various applications, for example, to assemble polymers in vivo at targeted locations to modulate electrical conduction and create new electrical conduction pathways, allow cell-type-specific neuromodulation, provide a conductive structure on cells for connection to electrodes, sensors, or other external electronic and electrochemical devices, and create a durable structure to replace damaged tissue for use in regenerative medicine.

Magnetic nanoparticles sequentially irradiated by laser radiation for medical or chemical or biological or cosmetic applications
11571393 · 2023-02-07 · ·

Magnetosomes for use in a sequential laser radiation medical treatment, wherein the magnetosomes are administered to a body part of an individual. In a first step, the magnetosomes are irradiated by a laser radiation, and in a second step, the magnetosomes are irradiated by a laser radiation of lower power than in the first step or no laser irradiation of the magnetosomes is performed. The sequence of the first step and second step is repeated at least once.

CELL SEPARATION PARTICLES FOR AND/NOT OPERATIONS OR MULTIPLE TARGETS
20230096558 · 2023-03-30 · ·

A method of acoustophoresis using selection particles that alter acoustic response is provided. The method can include selecting a set of selection particles based on surface markers of a plurality of target particles to be separated using acoustophoresis. The method can include incubating the set of selection particles with the plurality of target particles in a solution such that the set of selection particles bind with the surface markers on the plurality of target particles to create a plurality of bound particles. The method can include providing the plurality of bound particles to an acoustophoresis device tuned to separate the particles based on a net acoustic contrast between each of the plurality of bound particles. The method can include receiving a plurality of output streams from the acoustophoresis device that each include a respective bound particle of the plurality of bound particles.

CELL SEPARATION PARTICLES FOR AND/NOT OPERATIONS OR MULTIPLE TARGETS
20230096558 · 2023-03-30 · ·

A method of acoustophoresis using selection particles that alter acoustic response is provided. The method can include selecting a set of selection particles based on surface markers of a plurality of target particles to be separated using acoustophoresis. The method can include incubating the set of selection particles with the plurality of target particles in a solution such that the set of selection particles bind with the surface markers on the plurality of target particles to create a plurality of bound particles. The method can include providing the plurality of bound particles to an acoustophoresis device tuned to separate the particles based on a net acoustic contrast between each of the plurality of bound particles. The method can include receiving a plurality of output streams from the acoustophoresis device that each include a respective bound particle of the plurality of bound particles.

METHODS FOR ELECTRO-MECHANICAL TRANSFECTION

Methods, devices, systems, and kits for electro-mechanical cell transfection are provided. A device includes a first electrode, a second electrode, and an active zone therebetween where an electrical potential difference applied to the first and second electrodes generates an electric field in the active zone sufficient to transfect at least a subset of the cells flowing in the active zone.

METHODS FOR ELECTRO-MECHANICAL TRANSFECTION

Methods, devices, systems, and kits for electro-mechanical cell transfection are provided. A device includes a first electrode, a second electrode, and an active zone therebetween where an electrical potential difference applied to the first and second electrodes generates an electric field in the active zone sufficient to transfect at least a subset of the cells flowing in the active zone.

MAGNETOELASTIC MICROCARRIERS AND MONITORING SYSTEM

Certain examples of the disclosure concern an apparatus including a microcarrier configured to receive and support attachment and growth of cells, and a magnetoelastic sensor enclosed by the microcarrier. The magnetoelastic sensor is configured to vibrate in response to an activation magnetic field, and the vibration can produce a return magnetic field having detectable field characteristics associated with the attachment or growth of the cells.

MAGNETOELASTIC MICROCARRIERS AND MONITORING SYSTEM

Certain examples of the disclosure concern an apparatus including a microcarrier configured to receive and support attachment and growth of cells, and a magnetoelastic sensor enclosed by the microcarrier. The magnetoelastic sensor is configured to vibrate in response to an activation magnetic field, and the vibration can produce a return magnetic field having detectable field characteristics associated with the attachment or growth of the cells.