Influence of the gelator structure and solvent on the organisation and chirality of self-assembling fibrillar networks

Chromophoric probes of naphthalimide moiety enable evaluation of their assembling behaviour photophysically through fluorescence spectroscopy and microscopy, circular dichroism. These experiments point out the influence of the nature of the chemical substitution of the organogelator. Very interestin...

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Published in:New journal of chemistry 2008, Vol.32 (7), p.1131-1139
Main Authors: Pham, Quoc Nghi, Brosse, Nicolas, Frochot, Céline, Dumas, Dominique, Hocquet, Alexandre, Jamart-Grégoire, Brigitte
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description Chromophoric probes of naphthalimide moiety enable evaluation of their assembling behaviour photophysically through fluorescence spectroscopy and microscopy, circular dichroism. These experiments point out the influence of the nature of the chemical substitution of the organogelator. Very interesting results were also obtained by performing CD experiments showing that the nature of the solvent should modify the chirality of self-assembled aggregates. Highly oriented network structures were observed at gel state and disappeared in isotropic solution. Microfibrous self-aggregation of organogels is in situ observed via fluorescence and SHG imaging and confirmed by transmission electron microscopic analysis of the dried sample.
doi_str_mv 10.1039/b714375c
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Physics
title Influence of the gelator structure and solvent on the organisation and chirality of self-assembling fibrillar networks
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