PMID- 25220452 OWN - NLM STAT- MEDLINE DCOM- 20150721 LR - 20211021 IS - 1573-4994 (Electronic) IS - 1053-0509 (Linking) VI - 24 IP - 6 DP - 2014 Nov TI - A highly selective turn-on fluorescent chemodosimeter for Cu(2+) through a Cu (2+)-promoted redox reaction. PG - 1671-7 LID - 10.1007/s10895-014-1454-4 [doi] AB - A highly sensitive and selective photoinduced electron transfer (PET) fluorescence chemodosimeter L for Cu(2+) detection has been synthesized and characterized. This PET chemosensor composed of a butano-tethered electron-riched phenothiazine (Ptz) donor and acridine orange (AO) signalling element. Based on the Cu(2+)-promoted oxidation of Ptz donor, the signalling element AO showed a unique fluorescent turn-on properties, which led to a highly Cu(2+)-specific fluorescent chemodosimeter. A fluorescent enhancement factor over 8-fold can be reached by fully blocking the PET channel with a detection limit down to the 10(-7) M range. Meanwhile, the reversibility of the chemodosimeter L can be realized by the addition of L-cysteine. FAU - Liang, Lijuan AU - Liang L AD - School of Materials Science & Engineering, Institute of Information Functional Materials& Devices, Harbin Institute of Technology, Harbin, 150001, China. FAU - Zhao, Liancheng AU - Zhao L FAU - Zeng, Xianshun AU - Zeng X LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140916 PL - Netherlands TA - J Fluoresc JT - Journal of fluorescence JID - 9201341 RN - 0 (Coloring Agents) RN - 0 (Fluorescent Dyes) RN - 0 (Phenothiazines) RN - 789U1901C5 (Copper) RN - F30N4O6XVV (Acridine Orange) RN - GS9EX7QNU6 (phenothiazine) SB - IM MH - Acridine Orange/*chemistry MH - Biosensing Techniques MH - Coloring Agents/*chemistry MH - Copper/*chemistry MH - Electron Transport MH - *Electrons MH - Fluorescent Dyes/*chemistry MH - *Light MH - Limit of Detection MH - Molecular Structure MH - Oxidation-Reduction MH - Phenothiazines/*chemistry MH - Spectrometry, Fluorescence EDAT- 2014/09/16 06:00 MHDA- 2015/07/22 06:00 CRDT- 2014/09/16 06:00 PHST- 2014/07/23 00:00 [received] PHST- 2014/09/04 00:00 [accepted] PHST- 2014/09/16 06:00 [entrez] PHST- 2014/09/16 06:00 [pubmed] PHST- 2015/07/22 06:00 [medline] AID - 10.1007/s10895-014-1454-4 [doi] PST - ppublish SO - J Fluoresc. 2014 Nov;24(6):1671-7. doi: 10.1007/s10895-014-1454-4. Epub 2014 Sep 16.