23 Jul Silver-loaded diamidoxime cellulose/chitosan/fibroin composite aerogel and preparation method thereof
Abstract
The invention discloses a silver-loaded diamidoxime cellulose/chitosan/fibroin composite aerogel and a preparation method thereof. The preparation method comprises the following steps: carrying out modification to obtain rod-shaped diamidoxime cellulose; with diamidoxime cellulose as a carrier and dialdehyde chitosan as a reducing agent and a gel component, preparing silver-loaded diamidoxime cellulose/chitosan composite sol by coordination and in situ reduction; then adding a fibroin solution with a certain concentration, wherein every component can autonomously form strong bonding under theinteraction force of static electricity, hydrogen bonds, etc.; and performing freeze-drying to obtain the silver-loaded diamidoxime cellulose/chitosan/fibroin composite aerogel. The obtained aerogel has a regular structure, high porosity, good biocompatibility, high mechanical properties and outstanding antibacterial effect, and is expected to be used in tissue engineering, biomedicine, medical dressing and the like.
Year: 2019
Country: CN
Doc No: 110229384