A smart "off-on" gate for the in situ detection of hydrogen sulphide with Cu(ii)-assisted europium emission.
A smart "off-on" gate for the in situ detection of hydrogen sulphide with Cu(ii)-assisted europium emission.
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用于通过 Cu(II) 辅助铕发射原位检测硫化氢的智能“关-开”门
DOI:
10.1039/c5sc04091d
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发表时间:
2016-03-01
期刊:
影响因子:
8.4
通讯作者:
Wong KL
中科院分区:
文献类型:
--
作者:
Liang Z;Tsoi TH;Chan CF;Dai L;Wu Y;Du G;Zhu L;Lee CS;Wong WT;Law GL;Wong KL
A novel responsive europium-based luminescence “off–on” gate for the in situ detection of H2S in water was developed. A water-soluble and emissive Eu-complex (EuL1) bearing a DO3A(Eu3+)–pyridine–aza-crown motif has been prepared and its Cu2+ complex has been demonstrated to be a smart luminescence “off–on” gate for H2S detection in water with a nano-molar detection limit (60 nM). EuL1 binds to Cu2+ ions selectively (KB = 1.2 × 105 M–1) inducing 17-fold luminescence quenching and forming a 1 : 1 stoichiometric complex (EuL1–Cu2+), which responds to H2S selectively with restoration of the original Eu emission of EuL1 followed by a further 40-fold luminescence enhancement, forming a 1 : 1 stoichiometric complex (EuL1–Na2S, KB = 1.5 × 104 M–1). Without Cu2+ ions, EuL1 showed non-specific binding towards H2S with only a 5-fold luminescence enhancement.
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影响因子:
46.2
作者:
Lin VS;Chen W;Xian M;Chang CJ
通讯作者:
Chang CJ
影响因子:
7.4
作者:
Huang, Juzheng;Kumar, Sacheen;Hanna, George B.
通讯作者:
Hanna, George B.
影响因子:
2.7
作者:
Giuliani, Daniela;Ottani, Alessandra;Guarini, Salvatore
通讯作者:
Guarini, Salvatore
影响因子:
16.6
作者:
Peng, Hanjing;Cheng, Yunfeng;Dai, Chaofeng;King, Adrienne L.;Predmore, Benjamin L.;Lefer, David J.;Wang, Binghe
通讯作者:
Wang, Binghe
影响因子:
8.4
作者:
Cao J;Lopez R;Thacker JM;Moon JY;Jiang C;Morris SN;Bauer JH;Tao P;Mason RP;Lippert AR
通讯作者:
Lippert AR