A system for detecting analytes in a biological subject, the system including at least one substrate including a plurality of microstructures configured to breach a stratum corneum of the subject, and wherein the one or more microstructures are responsive to a presence, absence, level or concentration of analytes to cause a change in appearance thereby indicating that a presence, absence, level or concentration of analytes has been detected.

A patch for a therapeutic electrical stimulation device includes a shoe connected to the first side of the patch, the shoe including a body extending in a longitudinal direction from a first end to a second end, and having first and second surfaces, the first end of the shoe defining at least two ports, and the first surface of the shoe defining a connection member. The patch also includes at least one conductor positioned in the ports of the first end of the shoe. The shoe is configured for sliding insertion into a receptacle defined by a controller so that the conductor is connected to the controller to deliver electrical current from the controller, through the conductor, and to the electrodes, and the connection member is at least partially captured by a detent defined by the controller in the receptacle to retain the shoe within the receptacle.

The invention relates to a device (1) for applying an electric field to a suspension of cells, cell derivatives, organelles, sub-cellular particles and/or vesicles, comprising at least one chamber (6) which comprises at least two electrodes (4), and at least one separating element (13) which is movable within the chamber (6) between two terminal points (14, 15) and, if it is in a position between the terminal points (14, 15), separates at least one first compartment (26) of the chamber (6) from at least one second compartment (27) of the chamber (6). According to the invention each compartment (26, 27) is designed to hold the suspension and comprises at least one port (7, 8, 10, 11) for charging or discharging the suspension, so as to discharge an aliquot of the suspension from the chamber (6) and at the same time charge a further aliquot of the suspension into the chamber (6), wherein the separating element (13) is moved in a second direction opposite to a first direction, and wherein the separating element (13) separates the aliquots from each other.

Methods and apparatuses (systems, devices, etc.) for treating biological tissue to evoke one or more desirable biological and/or physiological effects using pulsed electric fields in the sub-microsecond range at very low electric field strength (e.g., less than 1 kV/cm) but at high (e.g., megahertz) frequencies.

Provided herein are systems, methods, and apparatus for electroporation. An example transformable needle includes a first electroporation member defining a first expandable portion, a distal end, and a proximal end, with the first expandable portion defining a first conductive portion. The transformable needle also includes a second electroporation member defining a second expandable portion, a distal end, and a proximal end, with the second expandable portion defining a second conductive portion. The transformable needle further includes a needle casing defining a distal end. The first expandable portion and the second expandable portion are each configured to move between a retracted position and a deployed position. A distance between the first conductive portion of the first expandable portion and the second conductive portion of the second expandable portion is greater in the deployed position than in the retracted position.

Techniques for High-Frequency Irreversible Electroporation (HFIRE) using a single-pole tine-style internal device communicating with an external surface electrode are described. In an embodiment, a system for ablating tissue cells in a treatment region of a patient's body by irreversible electroporation without thermally damaging the tissue cells is described. The system includes at least one single-pole electrode probe for insertion into the treatment region, the single-pole electrode probe including one or more tines. The system further includes at least one external surface electrode for placement outside the patient's body and configured to complete a circuit with the single-pole electrode probe. The system also includes a control device for controlling HFIRE pulses to the single-pole tine-style electrode and the skin-surface electrode for the delivery of electric energy to the treatment region. Other embodiments are described and claimed.

A method and device for electroporating adipocytes in the adipose layer of tissue, where the device includes a frame, a first electrode coupled to the frame having a first contact surface, a second electrode coupled to the frame having a second contact surface, and where the first contact surface and the second contact surface define a treatment zone therebetween. The method including positioning a fold of tissue between the first and second electrodes such that the treatment zone formed between the two electrodes includes an adipose layer of tissue and no skeletal muscle.

A method includes applying one or more electrodes to the skin or skin surface of a subject, applying a voltage or current signal to the skin surface via one or more of the electrodes, and modulating the signal to maintain treatment efficacy, or so that the power output can be charge balanced, or both. An agent can be applied to the skin surface during a treatment period defined after the voltage or current signal is applied. Permeability of the skin to one or more components of the agent is enhanced or increased during the treatment period, responsive to the modulated power output. A device for performing the method is also provided.

Methods and apparatus for the reproducible, consistent and efficacious delivery of a therapeutic agent to a subject. The present disclosure comprises apparatus for the controlled administration of the therapeutic agent through an orifice to the subject, a plurality of penetrating electrodes arranged with a predetermined spatial relationship relative to the orifice, and an electrical signal generator operatively connected to the electrodes.

The present disclosure provides devices and methods for delivering a biomolecule into a cell. A delivery device of the present disclosure includes a first reservoir, a second reservoir, a porous membrane comprising a nanopore, and two or more electrodes configured to generate an electric field across the porous membrane for delivery of a biomolecule present in the second reservoir through the nanopore of the porous membrane and into a cell present in the first reservoir.