Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9890941 | International Journal of Biological Macromolecules | 2005 | 4 Pages |
Abstract
We have found that polyacrylamide gels cross-linked with bisacrylamide induce a larger macromolecular osmotic pressure than the non cross-linked gels. This means also that in the cross-linked gels hydration water is held more tightly to the polymer, i.e., more work is needed to remove water, than in the non cross-linked gel. Since the chemical nature of the two gels is extremely similar, we propose that the formation of the network alters per se the water activity.
Keywords
Related Topics
Life Sciences
Biochemistry, Genetics and Molecular Biology
Biochemistry
Authors
Giorgio Trombetta, Cristina Di Bona, Enrico Grazi,