Jump to main content
Jump to site search


Green synthesis of silver nanoparticles using one-pot and microwave-assisted methods and their subsequent embedment on PVDF nanofibre membranes for growth inhibition of mesophilic and thermophilic bacteria

Abstract

Antibacterial silver nanoparticles (AgNPs) were synthesised via an environmentally benign thermally-assisted one-pot and microwave-assisted experimental set-up using apple extract as a reducing agent. The formation of these AgNPs was confirmed by UV-Vis, XRD and EDS while their size distribution was determined by TEM micrographs. The AgNPs were uniformly distributed with size diameters of 28.24±1.15 nm and 22.05±1.05 nm for the thermally-assisted one-pot and microwave-assisted reduction methods respectively. The rate of reduction was faster in a microwave-assisted reduction method compared to that of thermally-assisted one-pot synthesis method. The antibacterial AgNPs were embedded in polyvinylidene fluoride (PVDF) nanofibre membranes and their antibacterial activity against Gram-positve Geobacillus stearothermophilus, Staphylococcus aureus and Gram-negative Pseudomonas aeruginosa, Klebsiella pneumoniae was studied. The antibacterial nanofibres successfully inhibited the growth of these mesophilic and thermophilic bacteria. Therefore, AgNPs-embedded PVDF nanofibre membranes showed a high potential for use in water purification systems that are subject to contamination by mesophilic or thermophilic bacteria without compromising the rate of water recovery.

Back to tab navigation

Publication details

The article was accepted on 08 Feb 2019 and first published on 08 Feb 2019


Article type: Paper
DOI: 10.1039/C8NJ06160B
Citation: New J. Chem., 2019, Accepted Manuscript

  •   Request permissions

    Green synthesis of silver nanoparticles using one-pot and microwave-assisted methods and their subsequent embedment on PVDF nanofibre membranes for growth inhibition of mesophilic and thermophilic bacteria

    L. N. Nthunya, S. Derese, L. Gutierrez, B. Mamba, T. G. Barnard, S. D. Mhlanga and A. R.D. Verliefde, New J. Chem., 2019, Accepted Manuscript , DOI: 10.1039/C8NJ06160B

Search articles by author

Spotlight

Advertisements