Novel two-photon absorbing styrylpyridine-based multi-branched dyes: towards pH responsive dyes for biological imaging

André-Jean Attias; Fabrice Mathevet; David Kréher; Patrice Baldeck; Clément Ricard; Boudewijn van der Sanden

doi:10.1117/12.650998

13 February 2006 Novel two-photon absorbing styrylpyridine-based multi-branched dyes: towards pH responsive dyes for biological imaging

André-Jean Attias, Fabrice Mathevet, David Kréher, Patrice Baldeck, Clément Ricard, Boudewijn van der Sanden

Author Affiliations +

Proceedings Volume 6117, Organic Photonic Materials and Devices VIII; 61170A (2006) https://doi.org/10.1117/12.650998
Event: Integrated Optoelectronic Devices 2006, 2006, San Jose, California, United States

Abstract

We report on the design, synthesis and optical properties of new two-photon absorbing multi-branched chromophores, based on a pyridine core. Measurements of TPA using the two-photon fluorescence method in the fs regime indicate that these chromophores exhibit two-photon absorptivity. The results indicate that a change of the substitution of the electron-acceptor core influences significantly the TPA cross sections. Moreover, upon protonation, the TPA properties are greatly enhanced in the 700-900 nm range. Thus, these molecules can serve as pH-sensitive TPA dyes. Preliminary results related to biological applications will be presented.

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André-Jean Attias, Fabrice Mathevet, David Kréher, Patrice Baldeck, Clément Ricard, and Boudewijn van der Sanden "Novel two-photon absorbing styrylpyridine-based multi-branched dyes: towards pH responsive dyes for biological imaging", Proc. SPIE 6117, Organic Photonic Materials and Devices VIII, 61170A (13 February 2006); https://doi.org/10.1117/12.650998

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