Facile synthesis of water soluble fluorescent metal (Pt, Au, Ag and Cu) quantum clusters for the selective detection of Fe3+ ions as both fluorescent and colorimetric probes
Zhou, SC (Zhou, Shaochen); Zhang, M (Zhang, Mei); Yang, FY (Yang, Fangyuan); Wang, F (Wang, Fu); Wang, CY (Wang, Chuanyi); Wang, F; Wang, CY
2017
Source PublicationJOURNAL OF MATERIALS CHEMISTRY C
Volume5Issue:9Pages:2466-2473
AbstractA facile and green synthetic route is developed to prepare water soluble, green-fluorescent Pt, Au, Ag and Cu quantum clusters (QCs), employing innoxious L-histidine as a capping agent. These metal QCs give out emissions at 455-495 nm, with maximum excitation wavelengths ranging between 350 and 401 nm. Interestingly, these histidine-stabilized metal quantum clusters also possess non-linear optical properties like two-photon luminescence, which is detected when they are exposed to a femtosecond laser at 812 nm. Luminescence quantum yields of Pt (2.93%), Au (13.10%), Ag (6.97%) and Cu (8.29%) clusters are found to be distinctly different, and lifetime measurement results suggest that the emissions of metal clusters (4.59-7.39 ns) stem from singlet transitions among different electron energy levels rather than metal-ligand electron transfer behaviors. The Pt, Au, Ag and Cu quantum clusters have average sizes of 1.3-1.9 nm, and are mainly composed of 11, 9, 4 and 7 metal atoms, respectively, according to the electrospray ionization mass spectrometry results. Moreover, the as-prepared metal clusters are sensitive to aqueous ferric ions, both as highly selective fluorescent and colorimetric probes in a low and wide concentration range, and are promising in many biological applications.
DOI10.1039/c6tc05253c
Indexed BySCI
WOS IDWOS:000396048900030
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Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.xjipc.cas.cn/handle/365002/4797
Collection中国科学院特殊环境功能材料与器件重点试验室
Corresponding AuthorWang, F; Wang, CY
Affiliation1.Chinese Acad Sci, Xinjiang Tech Inst Phys Chem, Lab Environm Sci & Technol, Key Lab Funct Mat & Devices Special Environments, Xinjiang 830011, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Xinjiang Normal Univ, Coll Chem & Chem Engn, Urumqi 830054, Peoples R China
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Zhou, SC ,Zhang, M ,Yang, FY ,et al. Facile synthesis of water soluble fluorescent metal (Pt, Au, Ag and Cu) quantum clusters for the selective detection of Fe3+ ions as both fluorescent and colorimetric probes[J]. JOURNAL OF MATERIALS CHEMISTRY C,2017,5(9):2466-2473.
APA Zhou, SC .,Zhang, M .,Yang, FY .,Wang, F .,Wang, CY .,...&Wang, CY.(2017).Facile synthesis of water soluble fluorescent metal (Pt, Au, Ag and Cu) quantum clusters for the selective detection of Fe3+ ions as both fluorescent and colorimetric probes.JOURNAL OF MATERIALS CHEMISTRY C,5(9),2466-2473.
MLA Zhou, SC ,et al."Facile synthesis of water soluble fluorescent metal (Pt, Au, Ag and Cu) quantum clusters for the selective detection of Fe3+ ions as both fluorescent and colorimetric probes".JOURNAL OF MATERIALS CHEMISTRY C 5.9(2017):2466-2473.
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