WebApr 11, 2024 · Metal-organic framework decorated with glycyrrhetinic acid conjugated chitosan as a pH-responsive nanocarrier for targeted drug delivery ... In vitro 3D hepatoma cell microspheres experiments showed that MIL-101-DOX/GA-CS had excellent penetration and tumor killing ability. Therefore, MIL-101-DOX/GA-CS nanoparticles have … 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 …
(PDF) Surface functionalization of porous chitosan microsphere …
WebThe invention discloses a method for preparing a berberine chitosan drug-carrying microsphere by a salting-out process. With berberine as a model drug, the method disclosed in the invention adopts the salting-out process, takes unmodified chitosan as a packing material, and employs sodium tripolyphosphate as a cross-linking agent to … WebChitosan microspheres are produced via an emulsion method [37, 38], freeze-drying [39], phase separation [20], or spray drying [17, 40]. Among those techniques, the emulsion method is simple and has high product yields, while freeze-drying and phase separation can create porous structure in chitosan microspheres, and spray drying is desirable ... earth galactic map
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WebJan 27, 2024 · Preparation of chitosan microspheres 2.2.1. Water and oil phase Accurately measured 5 mL of glacial acetic acid into a 250 mL volumetric flask, diluted with distilled water, shaked well, transferred 100 mL to a conical flask with the pipetting tube, … WebFeb 28, 2024 · In this study, the chitosan-based release microspheres were prepared by spray drying method. Chitosan was used as the carrier material, and Panax notoginseng … WebFeb 1, 2024 · Moreover, the number of free amines in chitosan increases with an increase in molecular weight, which may affect the safety of the final product. In the case of … earth gaia