Molecular-imprinting-based surface-enhanced Raman scattering sensors

X Guo, J Li, M Arabi, X Wang, Y Wang, L Chen - Acs Sensors, 2020 - ACS Publications
X Guo, J Li, M Arabi, X Wang, Y Wang, L Chen
Acs Sensors, 2020ACS Publications
Molecularly imprinted polymers (MIPs) receive extensive interest, owing to their structure
predictability, recognition specificity, and application universality as well as robustness,
simplicity, and inexpensiveness. Surface-enhanced Raman scattering (SERS) is regarded
as an ideal optical detection candidate for its unique features of fingerprint recognition,
nondestructive property, high sensitivity, and rapidity. Accordingly, MIP based SERS (MIP-
SERS) sensors have attracted significant research interest for versatile applications …
Molecularly imprinted polymers (MIPs) receive extensive interest, owing to their structure predictability, recognition specificity, and application universality as well as robustness, simplicity, and inexpensiveness. Surface-enhanced Raman scattering (SERS) is regarded as an ideal optical detection candidate for its unique features of fingerprint recognition, nondestructive property, high sensitivity, and rapidity. Accordingly, MIP based SERS (MIP-SERS) sensors have attracted significant research interest for versatile applications especially in the field of chemo- and bioanalysis, showing excellent identification and detection performances. Herein, we comprehensively review the recent advances in MIP-SERS sensors construction and applications, including sensing principles and signal enhancement mechanisms, focusing on novel construction strategies and representative applications. First, the basic structure of the MIP-SERS sensors is briefly outlined. Second, novel imprinting strategies are highlighted, mainly including multifunctional monomer imprinting, dummy template imprinting, living/controlled radical polymerization, and stimuli-responsive imprinting. Third, typical application of MIP-SERS sensors in chemo/bioanalysis is summarized from both small and macromolecular aspects. Lastly, the challenges and perspectives of the MIP-SERS sensors are proposed, orienting sensitivity improvement and application expanding.
ACS Publications