Figure 1.
(a) Colorimetric sensor array used for bacterial identification experiments; details provided in Supporting Information Table S1. (b) Schematic of the experimental apparatus consisting of an inverted closed Petri dish containing growth media (tryptic soy agar (TSA) with 5% sheep blood) upon which was spread the appropriate liquid bacterial culture, an array positioned in the headspace, and an ordinary flatbed scanner. The array was scanned and images collected as a function of time.