Effect of organic and inorganic acids on chitosan/glycerophosphate thermosensitive hydrogel
Source abstract
Abstract
The influence of organic and inorganic acids on chitosan/glycerophosphate (CS/GP) hydrogel has been investigated by dissolving chitosan in different acids. The results of gelation showed that all of the chitosan dissolved in monovalent acid solutions (i.e., formic, acetic, propionic, butyric, isobutyric, lactic, nitric, hydrochloric, and chloroacetic acid), when neutralized by GP solution, could transform into hydrogel after 2–5 min at 37 °C, while those dissolved in multivalent acids failed in gel formation. The inner structures of CS/GP hydrogels prepared with monovalent acids depended on the ionic strength and chain length of acids. Morphological examination by scanning electron microphotography demonstrated that large pores occurred during the gel-forming process, and the aperture size was also related to different acids. The cytotoxicity studies indicated that CS/GP systems prepared by dissolving chitosan in tested acids except chloroacetic acid were nontoxic to mouse embryonic fibroblasts and Hela cells.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Hydrogels: synthesis, properties, applications · Advanced Drug Delivery Systems · Polymer Surface Interaction Studies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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