BERKELEY SENSOR & ACTUATOR CENTER
UC BERKELEY UC DAVIS
User: Guest |  Site Map |  My BSAC Profile
HOME  PROJECTS  THRUSTS  PUBLICATIONS  ABOUT BSAC  DIRECTORY  ALUMNI  FOR BSAC RESEARCHERS  EVENTS CALENDAR  SECURE LOGIN
Table of all Projects
     
 

BPN871: An Ultrasonic Implantable for Continuous In Vivo Monitoring of Tissue Oxygenation

Project ID BPN871
Website
Start Date Mon 2017-Aug-14 16:13:39
Last Updated Thu 2017-Aug-17 11:54:01
Abstract Our group previously demonstrated a “neural dust” system for neural recording which includes an implantable device and external ultrasonic transducers to power and communicate with the implantable. In this work, we extend that paradigm, demonstrating an implantable that can measure and report tissue oxygenation. Oxygenation state is a key parameter when assessing the metabolic state of cells and tissues, tissue and organ viability, tumor state, among many examples in both basic science and clinical care. Various types of methods for the detection of oxygen have appeared in recent years, including the Clark electrode, Winkler titration, and optical sensing. Among these, there is a growing interest in optical sensors for use in consumer electronic devices because they possess advantages of (a) fast response, (b) high sensitivity, (c) good precision and accuracy, (d) lack of oxygen consumption during measurements, (e) ease of miniaturization, (f) low cost, and (g) enabling in vivo, non-invasive and real- time measurements. In this project, we aim to develop a miniaturized oxygen sensor system consisting of a micro-light emitting diodes (LEDs) for optical excitation, bio- compatible thin-film for encapsulation of an oxygen-sensitive fluorophore, ultrasonic transducer for wireless communication and wireless powering of the implantable device, and single-chip CMOS integrated circuit for optical detection and signal processing. The sensor system determines oxygen level utilizing the fluorescence lifetime of a fluorophore, which is a function of the oxygen concentration of the thin film that is influenced by the surrounding environment.
Status New
Funding Source Foundation
IAB Research Area Wireless, RF & Smart Dust
Researcher(s) Soner Sonmezoglu
Advisor(s) Michel M. Maharbiz, Mekhail Anwar
Detailed Information
Secure Access

Private Abstract
Research Report
Poster
Summary Slide PDF | VIDEO
Active Feedback (or Request for Response)

 

  • Copyright Notification: All papers downloaded from this site are © University of California or the publisher, all rights reserved. Contact the BSAC Webmaster for permission related to copyrighted materials.
  • Links on these pages to commercial sites do not represent endorsements by UC or its affiliates.
  • Privacy Policy
  • Contact Us

   webmaster@bsac.eecs.berkeley.edu
  User logged in as: Guest
  User Idle since: September 25, 2017, 7:08 pm