fig4
From: Microfluidic devices for on-chip quantification of extracellular vesicles and associated biomarkers
Figure 4. Integrated sensors and SERS approaches for surface marker-based EV quantification. (A) Electrochemical EV quantification (adapted from ref.[41]); (B) Droplet microfluidics with integrated SERS for EV detection (adapted from ref.[46]). EVs: Extracellular vesicles; SERS: surface-enhanced raman spectroscopy.