Fig. 2. Schematic describing the rapid enrichment step using a microfluidic device and detection step using a multiplex self-referencing SERS strategy. Three anisotropic SERS tags, designed to target different epitopes on E. coli O157:H7 cells, were employed to yield a dual SERS signal containing contributions from the target pathogen and nanotags that confirmed specific pathogen recognition. The image is reprinted from Wang et al.,65 Copyright (2017), with permission from BioMed Central.
