Live demonstration: Portable impedance-based biosensor system for metabolomic sensing

摘要

Point-of-care biosensor devices can be important tools for monitoring and diagnosing health conditions in areas where conventional lab based testing is not practical or possible. A versatile, inexpensive, and portable biosensor has been designed to detect a variety of metabolites for metabolomic testing and disease diagnosis. The sensor works by detecting the electrical impedance change of micro fabricated interdigitated electrodes when gold nano particles bind to the electrodes in the presence of a target bio molecule. This impedance change is detected by a custom designed handheld device that can be controlled using a smartphone for optimal ease of use and convenience, while still remaining inexpensive.