Fig. 10
From: Recent Advances in Silicon Nanowire Biosensors: Synthesis Methods, Properties, and Applications
a Showing photograph of the detection of pesticide deposits on a cucumber surface experiment. b Showing Raman spectra documented from the rough cucumber surface with 1-s gain time and ×50 objective. c Showing photograph of SiNWs compiled on a commercially available filter film and graphic picture of the E. coli detection. d Showing Raman spectra documented from a blank thin film and five different sites on the E. coli-contaminated AgNP@SiNWs thin film with 10-s acquisition time and ×50 objective. This figure was reproduced from [58]