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[Microcapsules with modulable properties made with cross-linked proteins and polysaccharides]
Therapie
|September 1, 1989
Summary
Cross-linking gelatin with polysaccharides creates enhanced microcapsules. These novel microcapsules show improved resistance to enzymatic degradation and controlled drug release, offering new possibilities in drug delivery systems.
Area of Science:
- Biomaterials science
- Polymer chemistry
- Drug delivery systems
Context:
- Microcapsules are widely used for drug delivery.
- Gelatin-based microcapsules often face limitations in stability.
- Polysaccharides offer tunable properties for biomaterial modification.
Purpose:
- To investigate the effect of polysaccharide addition on gelatin microcapsule properties.
- To evaluate the enzymatic stability and drug release profiles of modified microcapsules.
- To explore the potential of polysaccharide-gelatin composites in advanced formulations.
Summary:
- A cross-linking process was employed on mixtures of gelatin (A or B) and various polysaccharides.
- The resulting mixed-walled microcapsules demonstrated enhanced resistance to enzymatic lysis, dependent on polysaccharide ratio, type, and cross-linking pH.
- Incorporating alginate or carboxymethylcellulose yielded highly hydrophilic microcapsules, with alginate specifically shown to slow pilocarpine release.
Impact:
- Development of more robust and stable microcapsule formulations for various applications.
- Potential for improved therapeutic efficacy through controlled drug release kinetics.
- New avenues for designing advanced biomaterials with tailored properties for biomedical uses.