期刊
TALANTA
卷 83, 期 2, 页码 658-662出版社
ELSEVIER
DOI: 10.1016/j.talanta.2010.10.016
关键词
Rhodamine; Platinum(II) complex; Hg2+ sensor; Two-photon miscroscopy
资金
- CRI [2010-0000728]
- NRF [R0A-2010-0018921]
- Ministry of Education, Science and Technology [2010-0020209]
- ChunHui Project Foundation of ministry of education of China
- Foundation of Department of Education of Yunnan Province of China [08Y0137]
- Foundation of Department of Science and Technology of Yunnan Province of China [2008CD104]
- BK21 scholarship
The first example of cyclometalated platinum(II)-containing rhodamine probe (1) with two-photon induced luminescent properties was synthesized and investigated for mercury detection. A highly selective color change of 1, from light yellow to pink, is observed only in the presence of Hg2+ due to the formation of 1,3,4-oxadiazole ring in 2. This selectivity of Hg2+ with color changes can be observed easily by the naked-eye. Meanwhile, a remarkable turn-on and selective 20-fold fluorescent enhancement of 1 upon binding with Hg2+ over the other tested metal ions was observed. The water-soluble probe 1 was successfully applied in the visualizing of the site of Hg2+ accumulation as well as estimating of trace amounts of mercury ions in live HeLa cells by two-photon microscopy. (C) 2010 Elsevier B.V. All rights reserved.
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