Polydopamine(PDA)Functionalized Eutectic Gallium–Indium(EGaIn)Nanoparticles as a Distortable Fluorescent Sensor for Pb^(2+)Detection  

作　　者：Yuanxin Li Can Hu Haiyang Qin Jinxue Zhao Xuejing Zhai Peiyi Li Zhibo Li Jun Zhu Lidong Wu 

机构地区：[1]Key Laboratory of Forensic Marks,Ministry of Public Security of China,Beijing 100042,China [2]College of Food Science and Engineering,Dalian Ocean University,Dalian 116023,China [3]Chinese Academy of Fishery Sciences,Beijing 100141,China [4]College of Food Science and Technology,Shanghai Ocean University,Shanghai 201306,China

出　　处：《Journal of Analysis and Testing》2025年第1期160-164,共5页分析检测(英文)

基　　金：supported by the Open Foundation,Key Laboratory of Forensic Marks,Ministry of Public Security of China(2021FMKFKT04);the National Natural Science Foundation of China(22176221);Central Public-interest Scientific Institution Basal Research Fund(CAFS 2024XT09)。

摘　　要：Fluorescent nanoparticles offer promising applications for bioimaging due to their exceptional attributes,including heightened fluorescence brightness and prolonged photo-stability,surpassing those of traditional fluorescent dyes.However,the selection of suitable materials and surface functionalization strategies for the synthesis of efficient fluorescent nanoparticles remains a significant challenge in this field.Here,we report a facile synthesis method of fluorescent nanoparticles,which is rationally designed by coating polydopamine(PDA)on eutectic Gallium-Indium(EGaIn,a liquid metal(LM))under ultrasonic waves to prepare the fluorescent PDA/LM nanoparticles.The fluorescence intensity of the PDA/LM nanoparticles is eightfold greater than that of the pristine PDA nanoparticles and can be quenched by Pb^(2+).It demonstrates that the PDA/LM nanoparticles exhibit superior analytical performance for Pb^(2+)over a linear range from 10 to 100μg/L,with a detection limit of 3μg/L.This probe can be used to detect Pb^(2+)in different vessels.

关 键 词：EGaIn POLYDOPAMINE Pb^(2+) DETECTION Distortable Fluorescence sensor 

分 类 号：TB383.1[一般工业技术—材料科学与工程] O657.3[理学—分析化学]