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We assembled photoresponsive mono‐ and bilayer systems with well‐defined properties from rod‐shaped molecules equipped with different photoswitches. Using properly chosen chromophores (diarylethene‐based switch and unidirectional light‐driven molecular motor), we then selectively targeted layers made of the same types of photoswitches using appropriate monochromatic light. UV‐vis analysis confirmed...
Supramolecular characteristics of two spermine amides of betulinic acid (1 and 2) were studied by measuring and evaluating their UV–VIS-NIR spectra in aqueous acetonitrile and DOSY-NMR spectra in tetradeuteromethanol, accompanied by atomic force microscopy (AFM) images, scanning electron microscopy (SEM) micrographs, and transmission electron microscopy (TEM) micrographs. Fibrous supramolecular self-assembly...
Naturally occurring acylated β-sitosteryl glucosides have been investigated for their novel properties. The synthetic protocol based on the literature data was improved and optimized. The main improvement consists in employing systems of ionic liquids combined with organic solvents in lipase-mediated esterification of (3β)-stigmast-5-en-3-yl β-d-glucopyranoside to get (3β)-stigmast-5-en-3-yl 6-O-acyl-β-d-glucopyranosides...
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