Two-photon absorption investigation in reduced and oxidized cytochrome c solutions

被引：32

作者：

Andrade, AA ^{[1
]}

Neto, NMB ^{[1
]}

Misoguti, L ^{[1
]}

De Boni, L ^{[1
]}

Zilio, SC ^{[1
]}

Mendonça, CR ^{[1
]}

机构：

[1] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil

来源：

CHEMICAL PHYSICS LETTERS | 2004年 / 390卷 / 4-6期

基金：

巴西圣保罗研究基金会;

关键词：

D O I：

10.1016/j.cplett.2004.04.056

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Here we present, a two-photon absorption (2PA) study in Fe2+ and Fe3+ oxidation states of cytochrome c molecule in water solution, using the femtosecond Z-scan technique with pulses from 560 to 850 nm. No qualitative difference was observed in the 2PA process for the two Fe oxidation states. The 2PA cross-sections, for both samples, increase as the wavelength approaches the absorption band, in agreement with the resonant denominator in the sum-over states model, presenting a maximum value of approximately 1000 GM at about 600 nm. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：506 / 510

页数：5

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