Polysaccharide gels, definition

Work by the present author in collaboration with a major group in Rome, interested in the chemical cross-linking of polysaccharides, can be used both to illustrate the approach, and to display the form of tiib critical gel spectrum. (We note that while the majority of critical do seem to reflect this behaviour, it does not appear to be universal, as shown by Ilavsky and co-workers. There are also systems that can be regarded as critical gels, if at all, only by twisting the definition, Miith appear to give the same shape of spectrum). 

---