The fluorescence regulation mechanism of the paramagnetic metal in a biological HNO sensor.

The fluorescence regulation mechanism of the paramagnetic metal in a biological HNO sensor.
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生物 HNO 传感器中顺磁性金属的荧光调节机制

DOI:
10.1039/c5cc00787a
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发表时间:
2015-06-14
期刊:
Chemical communications (Cambridge, England)
影响因子:
--
通讯作者:
Zhang Y
Zhang Y
中科院分区:
其他
文献类型:
--
作者:
Yang W;Chen X;Su H;Fang W;Zhang Y

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顺磁性金属经常用于调节化学和生物探针中的荧光发射。精确的量子计算提供了第一个调控理论,即猝灭是通过混合荧光团/金属3ππ*/dd态等能到荧光团局域化1π *态的竞争非辐射衰变。建立了顺磁性金属诱导荧光猝灭的理论模型。
Paramagnetic metals are frequently used to regulate fluorescence emissions in chemical and biological probes. Accurate quantum calculations offer the first regulation theory that quenching is through the competitive nonradiative decay of the mixed fluorophore/metal 3ππ*/dd state isoenergetic to fluorophore-localized 1ππ* state. A theoretical model was developed to reveal the origin of paramagnetic metal induced fluorescence quenching.
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