Screening hypochromism of chromophores in macromolecular biostructures

被引：0

作者：

Vekshin, NL ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Cell Biophys, Pushchino 142292, Moscow Region, Russia

来源：

BIOFIZIKA | 1999年 / 44卷 / 01期

关键词：

absorption of light; extinction coefficient; chromophores; screening hypochromism;

D O I：

暂无

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

The regular arrangement of chromophores in macromolecules and clusters at distances less than the wavelength leads to the effect of screening hypochromism. This effect is due to a fall in the mean absorption probability, i.e., the mutual shielding of chromophores from light in the competition for a given photon. In macromolecular biostructures, this effect, together with other factors, can cause a decrease in the molar absorption coefficient; however, using the screening model alone, it is possible to predict the hyperchromism of oligonucleotides DNA, proteins, aggregates of aromatic hydrocarbons; and some other structures.

引用

页码：45 / 55

页数：11

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