Abstract In this work, we report the preparation of bacterial cellulose (BC)-chitosan composite hydrogel beads by co-dissolution of BC and chitosan in 1-ethyl-3-methylimidazolium acetate and subsequent reconstitution with distilled water. The BC-chitosan hydrogel beads were used as enzyme supports fo...
Adsorption of a cationic dye, methylene blue, on to chitosan hydrogel beads generated by anionic surfactant gelation. Chatterjee S,Chatterjee T,Lim SR,Woo SH. Environmental Technology . 2011Chatterjeea S, Chatterjeea T, Limb SR, Woo SH (2010) Adsorption of a cationic dye, methylene blue, on...
PHARMACEUTICALS APPLICATIONS OF CHITOSAN HYDROGEL BEADS*Correspondence for Author Dr. Anuja AgarwalAssociate Professor,Department of Chemistry, J. V. Jain College, Saharanpur (U.P.) INDIAAnuja AgarwalManjusha Rani
pH-sensitive gallol-rich chitosan hydrogel beads for on-off controlled drug delivery pH敏感富没食子酚壳聚糖水凝胶微珠的开-关控释给药研究 相关领域 壳聚糖 化学 药物输送 共价键 聚合物 肿胀 的 亚胺 部分 罗丹明B 高分子化学 核化学 自愈水凝胶 共轭体系 化学工程 有机化学 催化作用 光催化 工程类 ...
Hydrogel, a cross-linked polymeric material that can hold a large amount of water while maintaining its structure, has drawn gigantic attention of scientific communities for numerous applications in the realm of tissue engineering due to its structural s
Chitosan hydrogel beads were successfully prepared by the method of thermosensitive internal gelation technique. The prepared beads were spherical, smooth-surfaced and non-aggregated with a diameter of 1.7–2.1mm. The diameters of beads can be controlled and have a correlation with the initial drop ...
The present study proposes a simple yet effective method of cellulose coating onto chitosan (CS) hydrogel beads and application thereof as drug carriers. The beads were coated with cellulose dissolved in 1-ethyl-3-methylimidazolium acetate, an ionic liquid (IL) via a one-pot one-step process. ...
The lipase showed the highest thermal and operational stability when covalently cross-linked on BC-chitosan hydrogel beads. The half-life time of the lipase cross-linked on BC-chitosan bead at 60°C was 22.7 times higher than that of free lipase. Owing to their inherent biocompatibility and ...
Munjeri O, Collett JH, Fell JT. 1997. Hydrogel beads based on amidated pectins for colon-specific drug delivery: The role of chitosan in modifying drug release. J Controlled Release 46: 272–278. ArticleGoogle Scholar Muzzarelli RAA. 1977. Chitin. New York: Pergamon press. ...
In one example, ionically cross-linked succinyl chitosan(Suc–Chi)/alginate hydrogel beads showed the release of as little as 11.6% of its nifedipine payload at pH 1.5 (3 h — the typical residence time in the stomach), and as much as 76% after 15 h at pH 7.4 [134]. This ...