A wireless and batteryless microsystem with implantable grid electrode/3-dimensional probe array for ECoG and extracellular neural recording on rat

This paper presents the design, implementation, characterization and recording results of a wireless, batteryless microsystem for neural recording on rat, with implantable grid electrode and 3-dimensional probe array. The former provides brain surface ECoG acquisition, while the latter achieves 3D extracellular recording in the 3D target volume of tissue. The microsystem addressed the aforementioned properties by combining MEMS neural sensors, low-power circuit designs and commercial chips into system-level integration.

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