title: Impulse radio ultra wideband wireless transmission of dopamine concentration levels recorded by fast-scan cyclic voltammetry.
abstract: This paper demonstrates the feasibility of utilizing impulse radio ultra wideband (IR-UWB) signaling technique for reliable, wireless transmission of dopamine concentration levels recorded by fast-scan cyclic voltammetry (FSCV) at a carbon-fiber microelectrode (CFM) to address the problem of elevated data rates in high-channel-count neurochemical monitoring. Utilizing an FSCV-sensing chip fabricated in AMS 0.35μm 2P/4M CMOS, a 3-5-GHz, IR-UWB transceiver (TRX) chip fabricated in TSMC 90nm 1P/9M RF CMOS, and two off-chip, miniature, UWB antennae, wireless transfer of pseudo-random binary sequence (PRBS) data at 50Mbps over a distance of <;1m is first shown with bit-error rates (BER) <; 10(-3). Further, IR-UWB wireless transmission of dopamine concentration levels prerecorded with FSCV at a CFM during flow injection analysis (FIA) is also demonstrated with transmitter (TX) power dissipation of only ~4.4μW from 1.2V, representing two orders of magnitude reduction in TX power consumption compared to that of a conventional frequency-shift-keyed (FSK) link operating at ~433MHz.
authors.forename: Ali
authors.initials: A
authors.lastname: Ebrazeh
authors.forename: Bardia
authors.initials: B
authors.lastname: Bozorgzadeh
authors.forename: Pedram
authors.initials: P
authors.lastname: Mohseni
mesh_terms: D002244:Carbon / Q000737:chemistry; D000077482:Carbon Fiber; D004298:Dopamine / Q000032:analysis*; D004563:Electrochemistry / Q000379:methods*; D008839:Microelectrodes; D011846:Radio Waves; D059015:Wireless Technology
chemical_list: D000077482:Carbon Fiber; D002244:Carbon; D004298:Dopamine