Personal health monitoring is becoming increasingly accessible as the ease of producing low-cost, low-power embedded systems has fueled a rapid growth in consumer products aimed at “measuring me.” Yet, a major technology gap is in the space of continuous chemical sensing. The majority of this talk will focus on describing our materials-focused solutions aimed at closing this gap, which emphasize miniature, injectable biosensor implants with microscale and nanoscale organization to enable observation of interstitial biochemistry. These materials provide specificity through use of various receptors and enhance sensitivity through optical amplification by phosphorescence or Raman scattering. Further, they employ materials that can integrate naturally with tissue, such as porous gels, enhancing prospects for accurate, rapid response and long-term monitoring. These studies pave the way for modular sensing systems based on sensing microdomains embedded in hydrogels; the former serve as the selective responsive elements whereas the latter act to immobilize the sensing domains while providing a “friendly” surface to interface with the body. Prototype miniaturized, dedicated instrumentation to interrogate the implants will also be discussed. Examples of current and potential translational activities will be provided and some major remaining challenges to long-term in vitro and in vivo biochemical monitoring will be highlighted.

Insertable optical biosensors for minimally-invasive metabolite monitoring

Fall 2022 abstracts, posters, and presentations will launch in mid-September.

ACS Fall 2022

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.