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In this paper, we present a stretchable electrode array for studying cell behavior subjected to mechanical strain. The electrode array consists of four gold nail-head pins (250 mum tip diameter and 1.75 mm spacing) inserted into a polydimethylsiloxane (PDMS) platform (25.4 times 25.4 mm2). Fusible indium alloy (liquid at room temperature) filled microchannels are used to connect the electrodes to...
A method for fabricating polydimethylsiloxane (PDMS) based conformable microelectrode arrays (MEAs) with selectable novel 3-D microelectrode geometries is presented. Simply recessed, conically recessed, exponentially recessed, and protruded-well microelectrodes have been fabricated on the MEA with a diameter as small as 10 mum. 3-D microelectrode geometry parameters (recess depth, recess slope &...
Flexible microelectrode array (MEA) has been widely used in neural prosthesis, such as artificial retinal chip. Specially, this sort of MEA for highly efficient electrical stimulation is more urgently required. In this work, a 3D flexible parylene-metal structure was fabricated by structure transfer technique. Silicon wafer was etched by deep reactive ion etching and isotropic wet etching sequentially...
Taking advantage of MEMS (micro electromechanical system) techniques, a microfabricated electrical impedance (EI) chip with microelectrodes was designed and fabricated. The microchip with Ti/Pt/Au detection microelectrodes and Su-8 sample reservoir was realized form glass substrate. The completed micro-electric impedance devices were characterized with NaCl solutions, cell culture solution RPMI1640...
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