articleNature CommunicationsSep 30, 2022GOLD OA

Chiral molecular imprinting-based SERS detection strategy for absolute enantiomeric discrimination

Chinese Academy of Sciences · Yantai Institute of Coastal Zone Research · +4 more institutions

PubMed
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Abstract

Chiral discrimination is critical in environmental and life sciences. However, an ideal chiral discrimination strategy has not yet been developed because of the inevitable nonspecific binding entity of wrong enantiomers or insufficient intrinsic optical activities of chiral molecules. Here, we propose an "inspector" recognition mechanism (IRM), which is implemented on a chiral imprinted polydopamine (PDA) layer coated on surface-enhanced Raman scattering (SERS) tag layer. The IRM works based on the permeability change of the imprinted PDA after the chiral recognition and scrutiny of the permeability by an inspector molecule. Good enantiomer can specifically recognize and fully fill the chiral imprinted…

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