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Issue:
INVESTIGATION ON INTERACTION OF 4-NITROANILINE WITH HUMAN SERUM ALBUMIN
Author(s):
LIANG Yan-qiu
,
DENG Bin
,
LIU Ting-ting
,
SUN Peng
,
ZANG Shu-liang
Pages:
845
-
849
Year:
2007
Issue:
6
Journal:
ENVIRONMENTAL CHEMISTRY
Keyword:
4-硝基苯胺
;
人血清白蛋白
;
荧光光谱
;
紫外光谱
;
Abstract:
通过荧光和紫外光谱法研究了4-硝基苯胺与人血清白蛋白(HSA)的作用.结果表明,4-硝基苯胺对HSA的内源荧光具有强烈的猝灭作用.猝灭机理为静态猝灭,同时伴随有非辐射能量转移的发生.根据双对数方程计算其结合常数和结合位点数.确定4-硝基苯胺与HSA有一类结合部位.根据热力学参数得出4-硝基苯胺与HSA之间的主要作用力为氢键和疏水作用力.同步荧光的结果表明,作用点位靠近色氨酸,并且使色氨酸的疏水环境增强.
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