In
this study, a series of gelatin and chitosan hydrogel beads were prepared via
covalently crosslinking of these polymers. At the first step, three types of
gelatin beads were obtained by dropping polymer solution into Glutaraldehyde
(GA)-oil emulsion. While the concentration of polymer solution was varied from
7% to 14%, the concentration of crosslinking solution kept constant. Secondly,
two types of chitosan beads were prepared by ionic gelation interaction
procedure using Sodium Tripolyphosphate (TPP) as crosslinker. 1% of polymer
solution was dropped into TPP solutions at different concentrations. At the
last step, the different series of gelatin hydrogels were prepared by cutting
the crosslinked polymer roads to form beads.
Swelling behaviors of all the hydrogel beads were studied by changing
time at constant temperature and pH. Swelling percentages (S%) increased with
time initially, and then remained constant at close to 24 h. In general, it was
determined that the gelatin hydrogel beads were much more swellable than the
chitosan beads.
Primary Language | English |
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Subjects | Engineering |
Journal Section | Articles |
Authors | |
Publication Date | July 25, 2019 |
Published in Issue | Year 2019Volume: 6 |