Two-photon absorption in aqueous micellar solutions

被引：83

作者：

Woo, HY ^{[1
]}

Korystov, D ^{[1
]}

Mikhailovsky, A ^{[1
]}

Nguyen, TQ ^{[1
]}

Bazan, GC ^{[1
]}

机构：

[1] Univ Calif Santa Barbara, Mitsubishi Chem Ctr Adv Mat, Dept Mat, Inst Polymers & Organ Solids, Santa Barbara, CA 93106 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2005年 / 127卷 / 40期

关键词：

D O I：

10.1021/ja054911q

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Addition of the surfactant sodium dodecyl sulfate at concentrations above the critical micelle concentration increases the fluorescence quantum yield and the two-photon absorption cross-section of charged [2.2]paracyclophane chromophores containing pairs of D-π-D chromophores. The resulting spectra in the micellar solutions are very similar to those obtained for neutral isostructural analogues in toluene. The measured ηδ values are 1300 GM for 1C and 1920 GM for 2C, which are comparable or larger to those in toluene. These results highlight possible misleading interpretation of two-photon-induced emission for evaluating the concentration of labeled substrates used in two-photon microscopy and provide guidelines for designing molecular structures with optimized two-photon action cross-sections in water. Copyright © 2005 American Chemical Society.

引用

页码：13794 / 13795

页数：2

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