A new nanosurface molecularly imprinted polymer difunctional probe and on site generated gold nanosol SERS/RRS/Abs trimode determination of trace carbendazim

Abstract

Although gold nanoparticle (AuNP) surface molecularly imprinted polymers (Au@MIP) were not fresh, this is of interest to spectral analysts due to their possession of high affinity for the target molecules, strong nanocatalysis to amplify the signals, and good stability to obtain accuracy. New avenues of molecular spectroscopy with straightforward, sensitivity and selectivity can be established using Au@MIP nanosol. In this article, a new carbendazim (CAR) Au@MIP nanocatalytic probe was prepared and the new Au@MIP-CAR-HAuCl4-vanillin (VAN) nano indicator reaction was constructed with in situ-generated AuNP as indicator, which with surface-enhanced Raman scattering (SERS), resonance Rayleigh scattering (RRS) and absorption (Abs) effects. Due to space constraints, these imprinted points show high selectivity in the recognition of CAR whose size and shape correspond to the template. The Au@MIP was sensitively detected CAR using SERS/RRS/Abs techniques, with determination range of 0.1–10, 1.5–17.5 and 9.0–30.0 nmol/L, the detection limits of 0.08, 1.0 and 5.0 nmol/L CAR respectively. In addition, the nanocatalytic mechanism was studied.