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Au and Ag nanoparticle-embedded calcium alginate fibers with laminated structure fabricated by molecule-directed self-assembly and cation exchange

2019-12-26 13:11:06　编辑：路艳华

Hyperbranched poly(amideamine) (HBPAA)-capped Au and Ag nanoparticles (NPs) were synthesized by hydrothermal reduction and then embedded into calcium alginate fibers (CAFs) by HBPAA-directed self-assembly and cation exchange between Ca2+ and HBPAA in aqueous solution to produce an Ag/Au-embedded coating inside the fiber surface. Transmission electron microscopy tests showed that as-prepared Au and Ag NPs possessed positive zeta potential (+34 and +13.5 mV) and had a regular spherical structure with an average particle size of 11.1 and 10.8 nm