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北京石油化工学院2026年研究生招生接收调剂公告
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晓晓瑶

铜虫 (小有名气)

[求助] 关于做蛋白质的问题:猝灭常数和结合常数的区别 已有1人参与

做蛋白的荧光光谱

我想问下,猝灭常数和结合常数对等么?

猝灭常数感觉就是猝灭了多少的意思,不就是药物结合蛋白结合了多少的意思么?是不是两个是对等的呢?
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D1ngX1n

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【答案】应助回帖

荧光猝灭也分静态和动态,静态猝灭就是形成复合物,和你理解意思差不多,动态的稍微少,但是也有。一下是文献中可找到的参考解释。It is well known that fluorescence quenching mechanism can be
classified as dynamic quenching and static quenching. Dynamic
quenching refers to a process that the fluorophore and the quencher come into contact during the transient existence of the excited
state, while static quenching refers to fluorophore–quencher complex formation. They can be distinguished by their different dependence features on temperature, and viscosity or, preferable, by
lifetime measurements . For static quenching, the quenching
constant decreases with increasing temperature, but the reverse
effect would be observed for dynamic quenching.
2楼2016-07-13 10:51:03
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