Tunable supramolecular gel properties by varying thermal history

YesThe possibility of using differential pre‐heating prior to supramolecular gelation to control the balance between hydrogen‐bonding and aromatic stacking interactions in supramolecular gels and obtain consequent systematic regulation of structure and properties is demonstrated. Using a model aromatic peptide amphiphile, Fmoc‐tyrosyl‐leucine (Fmoc‐YL) and a combination of fluorescence, infrared, circular dichroism and NMR spectroscopy, it is shown that the balance of these interactions can be adjusted by temporary exposure to elevated temperatures in the range 313–365 K, followed by supramolecular locking in the gel state by cooling to room temperature. Distinct regimes can be identified regarding the balance between H‐bonding and aromatic stacking interactions, with a transition point at 333 K. Consequently, gels can be obtained with customizable properties, including supramolecular chirality and gel stiffness. The differential supramolecular structures also result in changes in proteolytic stability, highlighting the possibility of obtaining a range of supramolecular architectures from a single molecular structure by simply controlling the pre‐assembly temperature.FP7 Ideas: European Research Council. Grant Number: 25877

Photodissociation of van der waals clusters of isoprene with oxygen, c5h8-o-2, in the wavelength range 213-277 nm

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Peptide-amphiphiles Functionalization Via Co-assembly for Cell Culture

No abstract available

Photodissociation Imaging of Diatomic Sulfur (S2)

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Peptide-amphiphiles Functionalization Via Co-assembly for Cell Culture

No abstract available