Research Website
https://polytechnic.purdue.edu/facilities/lobe
Keywords
Sweat Sensor, Drug Monitoring, Opioids, Organic Electronics, Flexible Sensor
Presentation Type
Poster
Research Abstract
Over 7 million Americans suffer from a drug use disorder and up to 60% of individuals treated for addiction will ultimately relapse. We are developing ultra-thin film electrodes on a wearable substrate for a sensor that can detect minute amounts of cocaine in sweat droplets secreted from the skin. This will enable wearable drug monitoring for personalized rehabilitation treatment plans and improve long-term addiction recovery rates. The current research focuses on developing a thin-film sensor that can be applied directly to the skin. First a layer of PVP (poly4-vinylphenol) was prepared and then spun coated onto a piece of glass. This adhesive coated glass acted as a substrate for assembling the sensors. Silver reference electrodes were generated by evaporating silver through a stencil, which contained 1mm by 10mm slits, in a vacuum sealed chamber. The resulting electrodes were tested to verify their conductivity, stability, and reactivity. Upon successfully demonstrating these characteristics, a second stencil was made to evaporate both gold and silver to make a working electrode surface that will react with a cocaine solution, making the first prototype that can successfully detect cocaine.
Session Track
Nanotechnology
Recommended Citation
Datta Sheregar, Vick Hung, Jenna Walker, Orlando Hoilett, Jacqueline Linnes, and Robert Nawrocki,
"Thin Film Cocaine Sensors"
(August 2, 2018).
The Summer Undergraduate Research Fellowship (SURF) Symposium.
Paper 130.
https://docs.lib.purdue.edu/surf/2018/Presentations/130
Thin Film Cocaine Sensors
Over 7 million Americans suffer from a drug use disorder and up to 60% of individuals treated for addiction will ultimately relapse. We are developing ultra-thin film electrodes on a wearable substrate for a sensor that can detect minute amounts of cocaine in sweat droplets secreted from the skin. This will enable wearable drug monitoring for personalized rehabilitation treatment plans and improve long-term addiction recovery rates. The current research focuses on developing a thin-film sensor that can be applied directly to the skin. First a layer of PVP (poly4-vinylphenol) was prepared and then spun coated onto a piece of glass. This adhesive coated glass acted as a substrate for assembling the sensors. Silver reference electrodes were generated by evaporating silver through a stencil, which contained 1mm by 10mm slits, in a vacuum sealed chamber. The resulting electrodes were tested to verify their conductivity, stability, and reactivity. Upon successfully demonstrating these characteristics, a second stencil was made to evaporate both gold and silver to make a working electrode surface that will react with a cocaine solution, making the first prototype that can successfully detect cocaine.
https://docs.lib.purdue.edu/surf/2018/Presentations/130