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Redox-Enabled Microscale Opto-Electronically Transduced Electrodes (ReMOTEs) | IEEE Conference Publication | IEEE Xplore

Redox-Enabled Microscale Opto-Electronically Transduced Electrodes (ReMOTEs)


Abstract:

We present the elements of a pH-measuring autonomous microsystem, a Redox-Enabled Microscale Opto-Electronically Transduced Electrode (ReMOTE). The ReMOTE contains two el...Show More

Abstract:

We present the elements of a pH-measuring autonomous microsystem, a Redox-Enabled Microscale Opto-Electronically Transduced Electrode (ReMOTE). The ReMOTE contains two electrodes of different materials, where the nearby \mathbf{pH} dictates the voltage between the two electrodes. The ReMOTE is a tetherless, all-optical microsystem which is powered and is transmitting its data optically. The ReMOTE is designed in a 180 nm CMOS SOI process, occupies merely \mathbf{417}\ \mu \mathbf{m}\times \mathbf{48}\ \mu \mathbf{m}, and it only consumes \mathbf{2}\ \mu\mathbf{W}. For the functional verification, we have conducted pH measurements using a thin film titanium nitride working electrode and a Ag/AgCl reference electrode, of which the voltage per pH sensitivity was 42.53 mV/pH.
Date of Conference: 21-25 May 2023
Date Added to IEEE Xplore: 21 July 2023
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Conference Location: Monterey, CA, USA

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