Fig. 1: Autonomous microsystems and MOTE.
From: A subnanolitre tetherless optoelectronic microsystem for chronic neural recording in awake mice
a, System overview in which a MOTE is implanted in an awake mouse brain to chronically record neural activity in vivo—incoming light powers the MOTE, and the MOTE, in turn, emits the PPM pulses communicating the recorded data. b, Optical microscopy image comparing a MOTE with a strand of human hair. c, MOTE is powered and is communicating optically; it is continuously powered at a shorter wavelength and communicates at a longer wavelength, making the powering system easier to implement and avoiding power–communication crosstalk. d, Scaling trends of tetherless autonomous microsystems for neural recording in which the MOTE is smaller than a single nanolitre. Credit: a, mouse illustration, SciDraw (E. Tyler and L. Kravitz).
