Not known Factual Statements About sustained release and controlled release formulation
Hydrogels are a few-dimensional network of hydrophilic cross-joined polymer that don't dissolve but can swell in h2o or can respond to the fluctuations of the environmental stimuli Hydrogels are highly absorbent (they could contain about 90% h2o) natural or artificial polymeric networks Hydrogels also possess a diploma of flexibility similar to pu