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Photoswitchable Hydrogen-Bonding in Self-Organized Cylindrical Peptide Systems
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1999
Year
EngineeringPeptide EngineeringOrganic ChemistryPeptide ScienceChemistryMacromolecular EngineeringE→z IsomerizationBiophysicsPhotochemistryMechanistic PhotochemistrySupramolecular PhotochemistryMolecular ModelingPhotochromismBiomolecular EngineeringHydrogen BondMolecular SwitchCyclic PeptidesThin FilmsMedicine
The new photochromic supramolecular system 1 is based on the E→Z isomerization of an azobenzene substituted with cyclic peptides with alternating D- and L-α-amino acids. This system allows reversible switching between inter- and intramolecularly assembled cylindrical β-sheet structures in solution as well as in thin films at the air-water interface. Moreover, the system displays the rarely observed quantitative photoinduced E→Z isomerization.