Transient supramolecular reconfiguration of peptide nanostructures using ultrasound

摘要: Ultrasound, i.e. high frequency oscillating pressure waves, is commonly used to overcome kinetic barriers associated with dissolution, assembly and gelation. We demonstrate that ultrasound energy may also be achieve transient reorganization of supramolecular nanostructures, which revert back the original state when sound switched off. Aromatic peptide amphiphiles, Fmoc-FL -YL were study acoustic response. These systems showed temporary transitions sequence dependent. The changes observed due an altered balance between H-bonding π-stacking, giving rise in chiral organisation building blocks. Transient reconfiguration was visualized by TEM interactions characterized fluorescence, FT-IR CD. Remarkably, significant differences are compared thermal heating, relates directional characteristics delivering heat a system.