Pyr-Phe-OH is an effective pyrene-based hydrogel. Pyr Phe OH can self-assemble into hydrogels in the range of pH=7.5-14.0, and also shows a very low gel concentration (0.037% (w/v)) in phosphate buffer[1].
References
[1] Du X, et al. Supramolecular hydrogels made of basic biological building blocks. Chem Asian J. 2014 Jun;9(6):1446-72. DOI:10.1002/asia.201301693
