Surface-enhanced Raman scattering (SERS) is a frontier technology for high-sensitivity analysis of molecules and chemical substances, and a useful tool in the sensing field relying on fingerprint recognition ability, high sensitivity, multiple detection, biocompatibility, and so forth. SERS substrates have been well concerned attributed to their ability to enhance Raman signals, which makes them useful in various applications, including sensing and detection. At the same time, flexible SERS substrates enable sample loads to meet requirements and, therefore, have high sensitivity for Raman dete...
