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- W2156847430 abstract "We present a compact wireless headset system for simultaneous multi-site neural recording and neurostimulation in the rodent brain. The system comprises flexible-shaft microelectrodes, neural amplifiers, neurostimulators, a digital time-division multiplexer (TDM), a micro-controller and a ZigBee wireless transceiver. The system is built by parallelizing up to four 0.35µm CMOS integrated circuits (each having 256 neural amplifiers and 64 neurostimulators) to provide a total maximum of 1024 neural amplifiers and 256 neurostimulators. Each bipolar neural amplifier features 54dB–72dB adjustable gain, 1Hz–5KHz adjustable bandwidth with an input-referred RMS noise of 7.99µV and dissipates 12.9µW. Each current-mode bipolar neurostimulator generates arbitrary waveform programmable biphasic currents in the range of 20–250µA and dissipates 2.6µW in the standby mode. Reconfigurability is enabled by stacking a set of dedicated mini-PCBs that share a common signaling bus within as small as 22×30×15mm <sup xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>3</sup> volume. The system features flexible polyimide-based microelectrode array design that maximizes pad packing density. Electrodeposition pad nanotexturing reduces the electrode-tissue interface impedance from an average of 2MΩ to 30K at 100Hz. The system has been validated in vivo in Sprague-Dawley rats." @default.
- W2156847430 created "2016-06-24" @default.
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- W2156847430 date "2012-11-01" @default.
- W2156847430 modified "2023-09-23" @default.
- W2156847430 title "1024-channel-scalable wireless neuromonitoring and neurostimulation rodent headset with nanotextured flexible microelectrodes" @default.
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- W2156847430 doi "https://doi.org/10.1109/biocas.2012.6418466" @default.
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