WebApr 15, 2004 · Chitosan is a biodegradable natural polymer with great potential for pharmaceutical applications due to its biocompatibility, high charge density, non-toxicity and mucoadhesion. It has been shown that it not only improves the dissolution of poorly soluble drugs but also exerts a significant effect on fat metabolism in the body. WebJan 1, 2024 · Due to low density porous chitosan microspheres were floating at the junction of oil and aqueous phases. (C): Image of microsphere under scanning electron …
Synthesis and Characterization of Uniform-Sized Hollow …
WebApr 13, 2024 · A novel pyridine-modified chitosan (PYCS) adsorbent was prepared in a multistep procedure including the successive grafting of 2-(chloromethyl) pyridine hydrochloride and crosslinking with glutaraldehyde. Then, the as-prepared materials were used as adsorbents for the removal of metal ions from acidic wastewater. Batch … WebJun 1, 2024 · 1 Introduction. Natural rubber, an important polymer with excellent physical and chemical properties, is widely used in various fields [-].In particular, as a biological … lysol hand sanitizer dispenser
Palladium nanoparticles immobilized on COF-modified honeycomb chitosan …
WebBackground: The microsphere prepared from chitosan, a natural polymeric material, has attracted considerable attentions due to the natural instincts of chitosan and microsphere … WebApr 2, 2012 · Lipid cross linked chitosan microspheres 13.Carrageenan microspheres 14.Alginate microspheres 15.Poly (alkyl cynoacrylate) microspheres 16.Poly acrolein microspheres. ... where E is the percentage of encapsulation of microspheres; Q p is the product of drug content per g of microspheres and Q t is the yield of microspheres in … WebNov 10, 2014 · However, in the preparation and applications of PLA/PLGA and chitosan microspheres containing protein/peptide drugs, the problems of broad size distribution and poor reproducibility of microspheres, and deactivation of protein during the preparation, storage and release, are still big challenges. ... and the reproducibility of products can … lysol hand soap dispenser light flashing