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The Effect of Branching on the One- and Two-Photon Absorption, Cell Viability, and Localization of Cationic Triarylborane Chromophores with Dipolar versus Octupolar Charge Distributions for Cellular Imaging.

ABSTRACT: Two different chromophores, namely a dipolar and an octupolar system, were prepared and their linear and nonlinear optical properties as well as their bioimaging capabilities were compared. Both contain triphenylamine as the donor and a triarylborane as the acceptor, the latter modified with cationic trimethylammonio groups to provide solubility in aqueous media. The octupolar system exhibits a much higher two-photon brightness, and also better cell viability and enhanced selectivity for lysosomes compared with the dipolar chromophore. Furthermore, both dyes were applied in two-photon excited fluorescence (TPEF) live-cell imaging.

SUBMITTER: Griesbeck S 

PROVIDER: S-EPMC6857003 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature

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The Effect of Branching on the One- and Two-Photon Absorption, Cell Viability, and Localization of Cationic Triarylborane Chromophores with Dipolar versus Octupolar Charge Distributions for Cellular Imaging.

Griesbeck Stefanie S   Michail Evripidis E   Rauch Florian F   Ogasawara Hiroaki H   Wang Chenguang C   Sato Yoshikatsu Y   Edkins Robert M RM   Zhang Zuolun Z   Taki Masayasu M   Lambert Christoph C   Yamaguchi Shigehiro S   Marder Todd B TB  

Chemistry (Weinheim an der Bergstrasse, Germany) 20190917 57

Two different chromophores, namely a dipolar and an octupolar system, were prepared and their linear and nonlinear optical properties as well as their bioimaging capabilities were compared. Both contain triphenylamine as the donor and a triarylborane as the acceptor, the latter modified with cationic trimethylammonio groups to provide solubility in aqueous media. The octupolar system exhibits a much higher two-photon brightness, and also better cell viability and enhanced selectivity for lysosom  ...[more]

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