文献类型：期刊文献

英文题名：A novel dual-mode turn-on optional chemodosimeter for the visualization of Pd0 with a low detection limit

作者：Liu, Mengmeng[1,2];Leng, Taohua[3];Wang, Kai[1,2];Shen, Yongjia[1,2];Wang, Chengyun[1,2]

机构：[1]East China Univ Sci & Technol, Key Lab Adv Mat, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem & Mol Engn, Inst Fine Chem, 130 Meilong Rd, Shanghai 200237, Peoples R China;[3]Shanghai Inst Qual Inspect & Tech Res, Natl Food Qual Supervis & Inspect Ctr Shanghai, Shanghai 200233, Peoples R China

年份：2017

卷号：337

起止页码：25

外文期刊名：JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY

收录：;EI(收录号：20235015203816);WOS:【SCI-EXPANDED(收录号:WOS:000397376900004)】；

基金：This work is sponsored by Natural Science Foundation of Shanghai (16ZR1408000), and the National Natural Science Foundation of China (No. 21576087).

语种：英文

外文关键词：Fluorescent probe; Palladium; Rhodol dye; Reaction-based

摘要：Rhodol is an ideal platform for fluorescent probes owing to its spirolactone framework and excellent photochemical properties. Herein, a novel rhodol-based colorimetric and fluorescent turn-on probe, DER-1, for the detection of Pd, was rationally developed with an allyl carbamate group as the response unit. Base on the Pd-triggered cleavage reaction and rhodol spiroring-opening mechanism, the proposed probe exhibited a high selectivity and sensitivity towards Pd-0 Upon addition of Pd(PPh3)(4), a significant fluorescence enhancement at 547 nm was observed with an obvious color change from colorless to pink, which can be easily identified by naked-eye. In addition, the fluorescence intensity at 547 nm was linearly proportional to the concentration of Pd-0 in the range of 0-1.5 mu M, and the detection limit was calculated to be 1.14 nM. That is, probe DER-1 can be quite a sensitive fluorescent turn-on probe for the quantitative detection of Pd in pretty low dose. (C) 2017 Elsevier B.V. All rights reserved.