Fig. 1. Schematic diagram of surface plasmon resonance^[20]

Fig. 2. Fingerprint SERS spectra of ASNRPC-cultured samples with varying protein mass concentrations and corresponding SERS images at selected mass concentrations^[29]. (a) SERS spectra of fingerprints with different mass concentrations of proteins incubated with the ASNRPC; (b) SERS images of the fingerprint with protein mass concentrations of 10⁰, 10^-1, 10^-4, and 10^-7 mg∙mL^-1 in the presence of ASNRPC

Fig. 3. Personalized information acquisition^[39]. (a) Schematic illustration of personalized information acquisition based on dual-mode imaging and SERS detection of developed LFP; (b) dual-mode imaging of LFP from volunteers a, b, and c on glass; (c) personalized molecule information acquisition from developed LFP

Fig. 4. Application of flexible transparent SERS active films in fingerprint development and component detection^[33]. (a)(b) SERS images of overlaid fingerprints generated using two dyes; (c)(d) overlapped fingerprint diagrams could be separated and reconstructed, by using a classical least-squares (CLS) fitting algorithm