Cu2+-complexes as quenchers of photocatalytic activity of visible light-absorbing photosensitizers: An application in detection of nucleic acids
Cu2+-complexes as quenchers of photocatalytic activity of visible light-absorbing photosensitizers: An application in detection of nucleic acids
复制标题
Cu2+配合物作为可见光吸收光敏剂光催化活性的猝灭剂:在核酸检测中的应用
DOI:
10.1016/j.ica.2016.04.023
复制
发表时间:
2016
影响因子:
2.8
通讯作者:
Mokhir
中科院分区:
文献类型:
--
作者:
Schikora;Mokhir
Photosensitizers are catalysts, which can generate singlet oxygen upon their irradiation with light. This reaction has been shown to be suitable for the amplified detection of biomolecules, e.g. nucleic acids. In known nucleic acid-responsive photosensitizers organic quenchers are usually applied. Herein we explored a Cu2+-complex of a 5-pyridin-2-yl-1H-pyrazolyl ligand as a quencher of representative photosensitizers of this type. We demonstrated that this complex can efficiently quench fluorescence of the photosensitizers and inhibit the photocatalytic generation of singlet oxygen. The mechanism of quenching was found to be dependent on the nature of the photosensitizer. For example, eosin was found to be quenched by the contact mechanism, whereas In3+(pyropheophorbide-a)chloride – by the dynamic mechanism. We concluded that Cu2+-based complexes can be considered as cheap and easy to tune alternatives to usually applied organic quenchers.
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DOI:
10.1002/zaac.201300077
发表时间:
2013
期刊:
Zeitschrift für anorganische und allgemeine Chemie
影响因子:
--
作者:
Arndt Sprödefeld;A. Kiel;D. Herten;R. Krämer
通讯作者:
R. Krämer
影响因子:
4.9
作者:
Dutta, Subrata;Flottmann, Benjamin;Mokhir, Andriy
通讯作者:
Mokhir, Andriy
影响因子:
1.8
作者:
A. Kiel;Anne Järve;J. Kovács;A. Mokhir;R. Krämer;D. Herten
通讯作者:
D. Herten
影响因子:
9.7
作者:
Bao G;Rhee WJ;Tsourkas A
通讯作者:
Tsourkas A
影响因子:
15
作者:
Kuhn, H;Demidov, VV;Frank-Kamenetskii, MD
通讯作者:
Frank-Kamenetskii, MD