Highly sensitive fluorescent quantification of carbendazim by two-dimensional Tb-MOF nanosheets for food safety

作者全名："Wang, Ting; Zhang, Lei; Zhang, Jieyuan; Guo, Gaoxian; Jiang, Xinhui; Zhang, Zhengwei; Li, Siqiao"

作者地址："[Wang, Ting; Zhang, Lei; Zhang, Jieyuan; Jiang, Xinhui; Zhang, Zhengwei] Chongqing Med Univ, Coll Pharm, Chongqing 400016, Peoples R China; [Guo, Gaoxian; Li, Siqiao] Chongqing Med Univ, Fac Basic Med Sci, Dept Forens Med, Chongqing 400016, Peoples R China"

通信作者："Zhang, ZW (通讯作者)，Chongqing Med Univ, Coll Pharm, Chongqing 400016, Peoples R China.; Li, SQ (通讯作者)，Chongqing Med Univ, Fac Basic Med Sci, Dept Forens Med, Chongqing 400016, Peoples R China."

来源：FOOD CHEMISTRY

ESI学科分类：AGRICULTURAL SCIENCES

WOS号：WOS:000951397300001

JCR分区：Q1

影响因子：8.5

年份：2023

卷号：416

期号：　

开始页：　

结束页：　

文献类型：Article

关键词：2D Tb-MOF nanosheets; Fluorescence sensor; CBZ detection; Food safety

摘要："Carbendazim (CBZ), a well-known benzimidazole pesticide, is utilized in agriculture to prevent and cure plant diseases caused by fungi. Residual CBZ in food poses serious threat to human health. Herein, a fluorescent two-dimensional terbium-based metal-organic framework (2D Tb-MOF) nanosheet sensor was developed for the rapid and ultrasensitive detection of CBZ. The 2D Tb-MOF nanosheets, prepared with Tb3+ ions and 5-borono-1,3-benzenedicarboxylic acid (BBDC) as the precursors, exhibited excellent optical properties. Upon the addi-tion of CBZ, the fluorescence of Tb-MOF nanosheets was quenched because of the inner filter effect (IFE) and dynamic quenching. The fluorescence sensor offered two linear ranges of 0.06-4 and 4-40 mu g/mL with a low detection limit of 17.95 ng/mL. Furthermore, the proposed sensing platform was successfully applied to assay CBZ in apples and tea, and satisfactory results were obtained. This study provides an effective alternative strategy for the qualitative and quantitative determination of CBZ to ensure food safety."

基金机构："National Natural Science Foundation of China [82002254, 82003713]; Natural Science Foundation of Chongqing [cstc2020jcyj-msxmX0158, cstc2021jcyj-msxmX0119]; Youth Project of Science and Technology Research Program of Chongqing Education Commission of China [KJQN202200464]; CQMU Program for Youth Innovation in Future Medicine [W0095]"

基金资助正文："This work was funded by the National Natural Science Foundation of China (82002254 and 82003713) , the Natural Science Foundation of Chongqing (cstc2020jcyj-msxmX0158 and cstc2021jcyj-msxmX0119) , Youth Project of Science and Technology Research Program of Chongqing Education Commission of China (KJQN202200464) , and CQMU Program for Youth Innovation in Future Medicine (W0095) ."