Hydrogel formation

Hydrogel drug carriers, 18 710 Hydrogel formation, PVA and, 25 603 Hydrogel processes, for preparing synthetic zeolites, 16 831-833... 

Hydrogel formation from four-arm polyethylene glycol methanethiosulfonate... 

Smeds, K. A., Grinstall, M. W., Photocrosslinkable polysaccharides for in situ hydrogel formation, Journal of Biomedical Materials Research, 54, 115-121, 2001. 

In another report of hydrogel formation, 2,2-bis(hydroxymethylpropionic acid) was used as the photoinitiator [222]. 

Vervoort, D., Van den Mooter, G., Augustijns, P., Busson, R., Toppet, S., and Kinget, R., Inulin hydrogels as carriers for colonic drug targeting. I. Synthesis and characterization of methacrylated inulin and hydrogel formation, Pharm. Res., 14, 1730-1737, 1997. 

Impressive materials properties can also be achieved by the solvent-specific aggregation properties of appropriately designed amphiphilic materials. A brief account on the organogel or hydrogel formation by amphiphilic molecules is now presented, citing a few examples from the current literature. Both... 

Possibility of joining hydrogel formation and sterilization in one technological step, which is advantageous for hydrogels in medical applications... 

Recently a polyrotaxane composed of multiple methylated a-CD rings threaded on a high molecular weight PEO chain and end-capped by bulky adamantyl groups was synthesized (Fig. 17) and investigated in terms of its thermo-reversible sol-gel transition and hydrogel formation [87],... 

Fig. 1 illustrates representative mechanisms of hydrogel formation. There are a number of different... 

Fig. 1 Representative methods of hydrogel formation. (A) Chemically cross-linked hydrogels are prepared from monomers, oligomers, or polymers in the presence of cross-linking agents. The chemical cross-linking proceeds via radical polymerization or polycondensation reaction. (B) Physically cross-linked hydrogels can be formed by ionic interactions, hydrophobic interaction, or hydrogen bonding.

Fyfe CA, Blazek Al. Investigation of hydrogel formation from hydroxypropylmethylcellulose (HPMC) by NMR spectroscopy and NMR imaging techniques. Macromolecules 1997 30(20) 6230-6237. 

Bray JC, Merrill EW. Poly(vinyl alcohol) hydrogels. Formation by electron beam irradiation of aqueous solutions and subsequent crystallization. J Appl Polym Sci 1973 17 3779-3794. 

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