Biomedical Engineering Reference
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Fig. 4 Dynamic
viscoelasticity measurements
after equal mixing of 5 wt%
PMBV and 2.5 wt% PVA
Fig. 5 Dissociation process
of PMBV/PVA hydrogel after
addition of 0.2 M of various
sugar solutions: circles
phosphate buffered saline,
squares D -glucose, diamonds
D -galactose, triangles D -
sorbitol
The dissociation property of the PMBV/PVA hydrogel was evaluated by weight
measurements of the hydrogel in phosphate-buffered saline (PBS) containing the
sugar molecules. The weight change of the PMBV/PVA hydrogel in the presence
of various sugar molecules against the incubation time is shown in Fig. 5 . The
hydrogel was initially swollen under all conditions. After the initial swelling,
the weight change of the hydrogel strongly depended on the sugar molecules.
The weight of the hydrogel immediately decreased, especially in the case of the
solution containing D -fructose. The order of dissociation of hydrogel was D -fructose
>
D -glucose. This order corresponded to the complex formation
constants of phenylboronic acid, which were reported by Lorand, et al . [ 58 ].
The order of formation constants of polyol complexes were reported as follows:
D -galactose
>
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