In Situ Synthesis of Silver Nanoparticles on Amino-Grafted Polyacrylonitrile Fiber and Its Antibacterial Activity

Abstract

In this study, amino hyperbranched polymers (HBP)-grafted polyacrylonitrile (PAN) fiber was prepared through an amidation reaction in an autoclave. The prepared PAN-G-HBP fiber can complex Ag+ through amino groups of amino HBP, and in a hot steaming condition, Ag+ can be converted to Ag0 through the reducibility of HBP. PAN-G-HBP and Ag nanoparticles (NPs)-coated fibers were then characterized through FTIR, UV–VIS DRS, FE-SEM, EDS, XPS and antibacterial measurement. FTIR results confirmed HBP was grafted on the surface of PAN fiber. FE-SEM showed that after grafting with HBP, the average diameter of PAN fibers was amplified. EDS, XPS, and UV–VIS DRS method indicated that under hot steaming condition and with the reducibility of HBP, Ag NPs uniform coating on the PAN-G-HBP. Ag NPs-coated fibers exhibits excellent antibacterial property against Escherichia coli and Staphylococcus aureus. Even under 20 times home washing conditions, the antibacterial reduction of Ag NPs-coated PAN fiber can achieved more than 98.94%.

Environmentally Friendly and Broad–Spectrum Antibacterial Poly(hexamethylene guanidine)–Modified Polypropylene and Its Antifouling Application

“…Inorganic particles are released rapidly in the actual use process because these inorganic particles are usually toxic and cause explosive pollution to the marine environment, affecting the survival and growth of marine organisms. Meanwhile, the price of inorganic antimicrobials has risen dramatically, which increases the cost of aquaculture when applied to fisheries [ 23 , 24 , 25 , 26 ].…”

A comparative investigation of the synergistic correlation (mechanical-hydrophobicity/hydrophilicity vs. structural behaviors) of a series of surface-metalized polyacrylonitrile fibers by silver nanoparticles (AgPAN): An in-situ surface metallization protocol

“…64 They also, based on the obtained data, proved that each of the two components protected each other’s properties. The produced fiber showed high antibacterial susceptibility against Escherichia coli and Staphylococcus aureu 64 . Jang et al proposed that the good miscibility between the silver/graphene oxide “Ag/GO” and PAN nanofibers is as a detectable factor for enhancing wetting.…”

“…In the later stage, the surface of the PAN-G-HBP fiber has been metalized by coating it with a uniform layer of Ag NPs under hot steaming condition. 64 They also, based on the obtained data, proved that each of the two components protected each other’s properties. The produced fiber showed high antibacterial susceptibility against Escherichia coli and Staphylococcus aureu 64 .…”

“…19 Zhang et al postulated grafting the surface of the PAN with the amino hyperbranched polymers (HBP) via a chemical reaction pathway between the cyanide groups in the PAN and the amine groups in the HBP. 64 So that the resulting composite fiber (PAN-G-HBP) becomes superficially active that plays as complexing/reducibility agent for Ag ions. In the later stage, the surface of the PAN-G-HBP fiber has been metalized by coating it with a uniform layer of Ag NPs under hot steaming condition.…”

“…The novelty of this paper revolved around some remarkably points, as following: (i) Designing a modern/ facial green protocol (referred to the greenness of the protocol in the 1.2.2. section "Supporting information") to metallize the surface of PAN through the integrating of two efficient methods (electrospinning/ultrasound irradiation) in the preparation of nanomaterials and to replace conventional/expensive chemical sensitizing-modification PAN surface. (ii) Unlike previous report, 17,45,64 this paper mainly focused on showing the effect of different additions of Ag NPs on all structural properties of the polymeric matrix (crystalline, morphology, structural and surface roughness). (iii) Within the same context, the stability of the polymeric matrix structure was studied by some calculations made using related data.…”