High performance surface-enhanced Raman scattering from molecular imprinting polymer capsulated silver spheres

Physical Chemistry Chemical Physics : PCCP
Yan GuoXin Li

Abstract

Driven by the ultrasensitivity of the surface-enhanced Raman scattering (SERS) technique and the directive selection of molecular imprinting polymers (MIPs), core-shell silver-molecularly imprinted polymer (Ag@MIP) hybrid structure was synthesized to serve as a novel SERS platform. The results show that as prepared Ag@MIPs wrapped over a thin shell of MIPs are sensitive to the template molecule (Rhodamine 6G). To investigate the selectivity of Ag@MIPs, the structurally related molecules, such as Rhodamine B and crystal violet, were chosen as controls. Notably, the high sensitivity of Ag@MIPs is restrained by the non-specific recognition of Rhodamine B and crystal violet. This high SERS enhancement of the template molecule can be interpreted by the "gate effect" and/or "dummy hot spots". We believe that the sensitivity of SERS coupled with the selectivity of MIPs could induce a promising chemosensor or biosensor for practical applications.

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Citations

May 18, 2016·ACS Applied Materials & Interfaces·Ying JiaEugene Pinkhassik
Jun 9, 2017·Nanomaterials·Pamela A Mosier-Boss
Aug 15, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Hongji LiChunxiang Li
Jan 9, 2021·Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes·Emily C CheshariXin Li
Dec 29, 2020·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Xiaohui RenXin Li
Dec 15, 2016·ACS Applied Materials & Interfaces·Davide CarboniPlinio Innocenzi
Jul 24, 2020·ACS Applied Materials & Interfaces·Limin Li, Wee Shong Chin
Feb 20, 2020·ACS Sensors·Xiaotong GuoLingxin Chen

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