Technical Excerpt (for anyone interested):
"The EES incorporates electrophysiological, temperature, and strain sensors, transistors, light-emitting diodes, photodetectors, radio frequency inductors, capacitors, oscillators, and rectifying diodes. Solar cells and wireless coils provided power supply."
Seems to be made on a silicon substrate (excerpt):
"The investigators note that mechanical properties of the EES depend on the effective modulus and thickness of circuits, sensors, and the silicon-on-wafer substrate."
Technical Excerpt (for anyone interested): "The EES incorporates electrophysiological, temperature, and strain sensors, transistors, light-emitting diodes, photodetectors, radio frequency inductors, capacitors, oscillators, and rectifying diodes. Solar cells and wireless coils provided power supply."
Seems to be made on a silicon substrate (excerpt): "The investigators note that mechanical properties of the EES depend on the effective modulus and thickness of circuits, sensors, and the silicon-on-wafer substrate."