Tetracycline Molecularly Imprinted Fluorescent Sensor Based on Tomato Stalk-Derived Carbon Dots.

ABSTRACT: In this work, novel biomass-derived carbon dots (CDs) with superior fluorescent properties were prepared from tomato straws. A selective, eco-friendly tetracycline (TC) sensor was fabricated by immobilizing a SiO₂ molecularly imprinted polymer (MIP) layer onto CDs, forming a CDs@SiO₂-MIP composite. This sensor combined highly selective adsorption properties with the sensitivity of fluorescence detection, with the sensing mechanism stemming from the off-fluorescent signal after molecular imprinting specifically recognizing the target substance. Under optimal conditions, the sensor exhibited a linear response to TC concentrations ranging from 1.00 × 10^-7 to 5.00 × 10^-4 mol/L, with fluorescence intensity decreasing as concentration increased. The de

SUBMITTER: Wang X 

PROVIDER: S-EPMC12656203 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature