Abstract: A soft and stretchable microelectrode array (sMEA) including a first circuit board having a first though hole; a second circuit board having a second through hole; a microelectrode array including a plurality of microelectrodes embedded in an elastomeric substrate, wherein the microelectrode array is disposed between the first and second printed circuit boards, and includes an exposed portion corresponding the first and second through holes; a plurality of contact pads formed on a top or bottom surface of the first printed circuit board and electrically connected to the plurality of microelectrodes; and a culture well mounted on the first printed circuit board and encompassing the first through hole. Further, the exposed portion of the microelectrode array includes a 3D pocket lined with stretched microelectrodes for electrically stimulating and recording signals from an organoid placed in the 3D pocket.

Abstract: A peripheral nerve interface including a microclip having a substantial U-shape and including an upper entry portion for entry of a nerve into the microclip and a lower seating portion for seating the nerve in the lower seating portion of the microclip; a stretchable microelectrode array including a plurality of electrodes, wherein the stretchable microelectrode array has a proximal end portion fixed to the microclip and a portion that is moveable and dragged into the upper entry portion and then the lower entry portion of the microclip in response to the microclip be positioned on the nerve; and an interface connected to a distal end of the stretchable microelectrode array and configured to interface with an external device for applying electrical stimulation to the nerve seated in the lower seating portion and for recording electrical characteristic of the nerve seated in the lower seating portion via the plurality of electrodes in the stretchable microelectrode array.

Abstract: A soft and stretchable microelectrode array (sMEA) including a first circuit board having a first though hole; a second circuit board having a second through hole; a microelectrode array including a plurality of microelectrodes embedded in an elastomeric substrate, wherein the microelectrode array is disposed between the first and second printed circuit boards, and includes an exposed portion corresponding the first and second through holes; a plurality of contact pads formed on a top or bottom surface of the first printed circuit board and electrically connected to the plurality of microelectrodes; and a culture well mounted on the first printed circuit board and encompassing the first through hole. Further, the exposed portion of the microelectrode array includes a 3D pocket lined with stretched microelectrodes for electrically stimulating and recording signals from an organoid placed in the 3D pocket.

Abstract: A peripheral nerve interface including a microclip having a substantial U-shape and including an upper entry portion for entry of a nerve into the microclip and a lower seating portion for seating the nerve in the lower seating portion of the microclip; a stretchable microelectrode array including a plurality of electrodes, wherein the stretchable microelectrode array has a proximal end portion fixed to the microclip and a portion that is moveable and dragged into the upper entry portion and then the lower entry portion of the microclip in response to the microclip be positioned on the nerve; and an interface connected to a distal end of the stretchable microelectrode array and configured to interface with an external device for applying electrical stimulation to the nerve seated in the lower seating portion and for recording electrical characteristic of the nerve seated in the lower seating portion via the plurality of electrodes in the stretchable microelectrode array.