Cellulose-Based Hydrogels and Aerogels Embedded with SilverNanoparticles: Preparation and Characterizationстатья
Статья опубликована в высокорейтинговом журнале
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 23 сентября 2021 г.
Аннотация:The paper presents the preparation and characterization of novel composite materialsbased on microcrystalline cellulose (MCC) with silver nanoparticles (Ag NPs) in powder and gelforms. We use a promising synthetic conception to form the novel composite biomaterials. At firstMCC was modified with colloidal solution of Ag NPs in isopropyl alcohol prepared via metal vaporsynthesis. Then Ag-containing MCC powder was used as precursor for further preparation of thegels. The hydrogels were prepared by dissolving pristine MCC and MCC-based composite at lowtemperatures in aqueous alkali solution and gelation at elevated temperature. To prepare aerogels the drying in supercritical carbon dioxide was implemented. The as-prepared cellulose composites were characterized in terms of morphology, structure, and phase composition. Since many functional properties, including biological activity, in metal-composites are determined by the nature of the metal-to-polymer matrix interaction, the electronic state of the metal was carefully studied. The studied cellulose-based materials containing biologically active Ag NPs may be of interest for use aswound healing or water-purification materials.