TiO2 sphere-tube-fiber transition induced by oligovaline concentration variation.

Abstract

L-Valine-based oligopeptides with the general structure Z-(L-Val)(n)-OMe or -OH (n = 1-4) form stable organogels in a variety of solvents, including the inorganic liquid tetraethylorthosilicate. The acid form Z-(L-Val)(n)-OH is a less efficient gelator than the methyl ester, but forms stable organogels in aromatic solvents and di- and trichloromethane. In… (More)

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