文献类型：期刊文献

英文题名：Emission enhanced fluorometric biosensor by functionalized carbon polymer dots for glutathione detection in human real samples and molecular logic gate operation

作者：Zhou, Xi[1] Hu, Yun[2] Xu, Lina[2] Li, Yufei[3] Zhang, Lifang[1] Cao, Yufeng[1] Zhou, Jinqiu[1] Qian, Tao[1]

第一作者：Zhou, Xi

通信作者：Zhou, JQ[1];Qian, T[1]

机构：[1]Nantong Univ, Sch Chem & Chem Engn, Nantong 226019, Peoples R China;[2]Chinese Acad Forestry, Inst Chem Ind Forestry Prod, Nanjing 210042, Peoples R China;[3]Zhejiang Univ Technol, Pinghu Inst Adv Mat, Pinghu 314200, Peoples R China

年份：2023

卷号：303

外文期刊名：SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY

收录：;EI(收录号：20233214492782);Scopus(收录号：2-s2.0-85166479731);WOS:【SCI-EXPANDED(收录号:WOS:001070599900001)】；

基金：This work was financially supported by the National Natural Science Foundation of China (32001284, 318907733) .

语种：英文

外文关键词：Carbonized polymer dots; Photoluminescent; Glutathione; Real sample; Logic gates

摘要：Glutathione (GSH), an active peptide, plays pivotal roles in many physiological processes and detection of GSH inside of human body is of great importance for the playing of its biological effects. Here silver-phosphorus codoped carbonized polymer dots (Ag@PCPDs) were prepared via solvothermal treatment of citric acid and phytic acid in the presence of Ag+ for GSH determination. The physicochemical and optical performance of the Ag@PCPDs were characterized by X-ray photoelectron spectroscopy (XPS), Fourier-transform infrared (FT-IR), X-ray powder diffraction (XRD), Raman spectroscopy, transmission electron microscopy (TEM), fluorescence spectroscopy and ultraviolet-visible (UV-Vis) spectroscopy analyses. The prepared Ag@PCPDs have outstanding water solubility with high monodispersity (7.81 & PLUSMN; 0.31 nm) and exhibited excellent optical properties with excitation-dependent emission, high photostability, pH, and ionic strength tolerance. An optimized excitation at 358 nm, the Ag@PCPDs showed strong photoluminescent (PL) emission at 456 nm with a PL quantum yield (QYs) of 15.6%. Furthermore, the Ag@PCPDs were used as a PL sensing platform for detection GSH in a linear range of 0-200 & mu;M with a low limit of detection at 0.68 & mu;M. In addition, the proposed system can construct molecular logic gates with GSH and Fe3+ ions as the chemical inputs and PL emissions as the output. And the