文献类型：期刊文献

英文题名：Fluorescent electronic tongue based on soluble conjugated polymeric nanoparticles for the discrimination of heavy metal ions in aqueous solution

作者：Feng, Chuying[1];Zhao, Peng[1];Wang, Lili[1];Yang, Tao[1];Wu, Yusen[1];Ding, Yun[1];Hu, Aiguo[1]

机构：[1]East China Univ Sci & Technol, Shanghai Key Lab Adv Polymer Mat, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2019

卷号：10

期号：18

起止页码：2256

外文期刊名：POLYMER CHEMISTRY

收录：;EI(收录号：20192006927418);WOS:【SCI-EXPANDED(收录号:WOS:000485555800005)】；

基金：The authors gratefully acknowledge the financial support from National Natural Science Foundation of China (21674035), the Fundamental Research Funds for the Central Universities (22221818014), and Shanghai Leading Academic Discipline Project (B502). AH thanks the "Eastern Scholar Professorship" support from Shanghai Local Government.

语种：英文

外文关键词：Silver nanoparticles - Fluorescence - Heavy metals - Substrates - Disposability - Metal nanoparticles - Quality control - Metal ions - Discriminant analysis

摘要：A fluorescence sensing array (or fluorescent electronic tongue) based on six sorts of soluble conjugated polymeric nanoparticles (SCPNs) decorated with PEG chains is designed for the rapid identification of heavy metal ions in water. The observed fluorescence attenuation originates from the photoinduced electron transfer (PET) between the sensors (donors) and the target analytes (acceptors). An 18-dimensional vector generated by the array is then subjected to linear discriminant analysis (LDA) and hierarchical clustering analysis (HCA) to build a chemical database pool for distinguishing nine analytes (Cr3+, Fe3+, Co2+, Zn2+, Cu2+, Pb2+, Sn4+, Ni2+, Cd2+) at 1 mM level. The prediction tests of "unknown samples" using the array are carried out, reaching 100% accuracy. With good disposability (filter paper as substrates) and high sensitivity (within minutes exposure time), this type of SCPN-based fluorescent electronic tongue enables multiple heavy metal ion detection and water quality analysis with high efficiency and low cost.