I wanted to quote a few examples of chemical hydrogels which posses a neutral charge.(non-ionic). Some examples I have are PEG,PEO,PVME etc. Are there any other polymer hydrogels which posses neutral charge?
Herein, you may find glycolipids and their tubular 3-D structures as an example of water gelators, as well as some bibliographic references concerning to your request
Article Supramolecular Diversity through Click Chemistry: Switching ...