• E MUDRA

      Articles written in Bulletin of Materials Science

    • Embedding of green synthesized silver nanoparticles into polymer matrix

      O VELGOSOVA E MUDRA M VOJTKO L VESELOVSKY

      More Details Abstract Fulltext PDF

      The aim of this study was to prepare and analyse polymer matrix composite (PMC) thin films and micro-fibres doped with different amounts of silver nanoparticles (AgNPs). AgNPs were synthesized by green method. The process of synthesis was observed and analysed by UV–visible and Fourier transform infrared analyses. The morphology and size of synthesized AgNPs was observed by scanning electron microscopy (SEM), transmission electron microscopy and energy dispersive X-ray techniques. Synthesized nanoparticles were uniform, near spherical, with mean diameter $\sim$20 nm. Polyvinyl alcohol–silver (PVA–AgNPs) composite films (prepared by spin-coating) and micro-fibres (prepared by electrospinning) with different amount of nanoparticles ($\sim$6 and $\sim$20% of AgNPs) were prepared. The distribution of AgNPs in composites was observed by the SEM. The observation showed the presence of clusters of AgNPs in polymer matrix. Significant changes in distribution was observed after increasing the amount of AgNPs. The antimicrobial activity of prepared thin films and micro-fibres was tested against one cell algae Parachlorella kesleri and compared to colloidal AgNPs. The toxicity tests showed good toxic effect on both AgNPs colloid and PVA–AgNPs composites

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      Posted on July 25, 2019

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