Molecularly Imprinted Polymer Functionalized Bi2S3/Ti3C2TX MXene Nanocomposites for Photoelectrochemical/Electrochemical Dual-Mode Sensing of Chlorogenic Acid

We report the proof-of-concept of molecularly imprinted polymer (MIP) functionalized Bi2S3/Ti3C2TX MXene nanocomposites for photoelectrochemical (PEC)/electrochemical (EC) dual-mode sensing chlorogenic acid (CGA). Specifically, in-situ growth served as a transducer substrate polymers such PEC and EC signal generators, due to its high surface area, suitable bandwidth abundant active sites. In addition, chitosan binder was encapsulated into MIP by means phase inversion on fluorine-doped tin dioxide (FTO) electrode. determination CGA an analytical model, sensor based had good selectivity, excellent stability acceptable reproducibility, which displayed linear concentration range from 0.0282 ?M 2824 0.1412 22.59 with low detection limit 2.4 nM 43.1 nM, respectively. Importantly, two dual-response mode different transduction mechanisms could mutually conform dramatically raise reliability accuracy compared single-mode detection. This work is breakthrough design sensors will provide reasonable basis construction platforms.