镁铝铕三元层状氢氧化物对色氨酸的荧光响应。

The fluorescence of Mg-Al-Eu ternary layered hydroxides response to tryptophan.

机构信息

Department of Chemistry, Nanchang University, People's Republic of China.

出版信息

Luminescence. 2012 May-Jun;27(3):223-8. doi: 10.1002/bio.1337. Epub 2011 Sep 1.

Abstract

We have studied the fluorescence of Mg-Al-Eu ternary layered hydroxides (TLH) quenched by tryptophan (Trp). IR spectroscopy was used to evaluate the change of Trp structure which was caused by TLH. XRD and TG-DTA results further suggested a structural change of Trp after being reacted with TLH. XPS characterization confirmed a strong chemical reaction between Trp and TLH. These studies may present more direct evidence to explain the interrelation between the structural change of Trp and the fluorescent quenching of TLH.

摘要

我们研究了色氨酸（Trp）猝灭的 Mg-Al-Eu 三元层状氢氧化物（TLH）的荧光。采用红外光谱研究了 TLH 对色氨酸结构的影响。XRD 和 TG-DTA 结果进一步表明，TLH 与色氨酸反应后色氨酸的结构发生了变化。X 射线光电子能谱（XPS）分析证实了色氨酸与 TLH 之间的强烈化学反应。这些研究可能为解释色氨酸结构变化与 TLH 荧光猝灭之间的关系提供更直接的证据。