Sensing vein and neural patterns
We welcome you to join us for this eWEAR Virtual Seminar on Thursday 12/2 from 11:00 am to 12:00 pm PST
Registration: Please click here to register
11:00 am to 11:30 am
“Portable Thermoacoustic Imaging for Biometric Authentication and Diagnostics using a Multi-Watt 4.9 GHz Power Amplifier in 55nm BiCMOS”
Nicolas Vachicouras & Ludovic Serex
11:30 am to 12:00 pm
“Soft Implantable Electrodes to Interface with the Brain”
Christopher Sutardja , Ph.D.
Postdoctoral Scholar, Electrical Engineering, Stanford University
Handheld microwave thermoacoustic imaging (TA) can be used to image subcutaneous vasculature for biometric authentication and to monitor blood-vessel health, but the system requires a compact silicon microwave power amplifier (PA) with peak output power on the order of 10 W to be portable, affordable, and ubiquitous. This work presents a 55nm BiCMOS 4.9 GHz PA with 37.3 dBm peak output power that operates at a pulse width of 50 ns – 2 μs for a duty cycle of 0.025 – 1%. The PA serves as the transmitter in a microwave TA system, which generates the first known TA images of tissue phantoms using a compact transmitter built on a silicon substrate with deep sub-micron CMOS capabilities.
Ludovic Serex, Ph.D.
COO & Co-Founder, Neurosoft Bioelectronics
Neural implants aim at restoring lost or impaired functions of the nervous system by electrical stimulation or recording of the brain. Current neural implants suffer from a mechanical mismatch compared to the soft host tissue, as they constrain mechanically the physiological motion of the central nervous system. This mismatch causes poor electrode-tissue contact, leading to unspecific stimulation or recording, as well as chronic scarring. At Neurosoft Bioelectronics, we overcome these fundamental limitations by developing soft neural electrodes, using more compliant materials, that seamlessly interface with the brain, promoting the long-term bio-integration of the devices and reducing surgical risks.
Nicolas Vachicouras, Ph.D.
CEO & Co-Founder, Neurosoft Bioelectronics