Two-photon absorption in aqueous micellar solutions

Han Young Woo; Dmitry Korystov; Alexander Mikhailovsky; Thuc Quyen Nguyen; Guillermo C. Bazan

doi:10.1021/ja054911q

Two-photon absorption in aqueous micellar solutions

Han Young Woo, Dmitry Korystov, Alexander Mikhailovsky, Thuc Quyen Nguyen, Guillermo C. Bazan

Research output: Contribution to journal › Article › peer-review

88 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	13794-13795
Number of pages	2
Journal	Journal of the American Chemical Society
Volume	127
Issue number	40
DOIs	https://doi.org/10.1021/ja054911q
Publication status	Published - 2005 Oct 12
Externally published	Yes

ASJC Scopus subject areas

Catalysis
General Chemistry
Biochemistry
Colloid and Surface Chemistry

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10.1021/ja054911q

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AU - Woo, Han Young

AU - Korystov, Dmitry

AU - Mikhailovsky, Alexander

AU - Nguyen, Thuc Quyen

AU - Bazan, Guillermo C.

PY - 2005/10/12

Y1 - 2005/10/12

N2 - 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.

AB - 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.

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Two-photon absorption in aqueous micellar solutions

Abstract

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