نتایج جستجو برای: swelling efficiency
تعداد نتایج: 417552 فیلتر نتایج به سال:
Chitosan with excellent biodegradable and biocompatible characteristics has received attention as an oral drug delivery vehicle for controlled-release formulations. In this study an enteric-coated capsule containing theophylline-chitosan beads based on 23 factorial designs was prepared as a colon drug delivery system. The theophylline-chitosan gel beads were formulated by adding the drug-contai...
Introduction: Mathematical modeling of drug release is one of the ways to improve the rate of drug diffusion and infiltration in swollen hydrogel based systems. Using this method can provide a better understanding of the mechanisms of drug control and its release. Hydrogels are a swollen biomaterial that needs to be controlled for use in drug release. Purpose and methodology: In this study, fiv...
The aim of this research was to prepare and characterize alginate-chitosan mucoadhesive microparticles containing puerarin. The microparticles were prepared by an emulsification-internal gelatin method using a combination of chitosan and Ca2+ as cationic components and alginate as anions. Surface morphology, particle size, drug loading, encapsulation efficiency and swelling ratio, in vitro drug...
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