Fig. 1: Characterization of norfentanyl antibody-functionalized FET sensors.
From: Detection of opioids and their metabolites in sweat by carbon nanotube FET sensor array
a Top: Optical image of a sensing chip with eight devices. Bottom: The sensing chip was wire-bonded into a 40-pin dual inline package (DIP) for FET measurements. b SEM image (top) and AFM image (bottom) of SWCNTs deposited between the interdigitated electrodes. c SEM image (top) and AFM image (bottom) of AuNPs decorated SWCNTs. d SEM image (top) and AFM image (bottom) of norfentanyl antibody-functionalized Au-SWCNT FET devices.
