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
- Author
- Lebea Nthunya (UGent) , Sebastiaan Derese (UGent) , Leonardo Gutierrez (UGent) , Arne Verliefde (UGent) , Bhekie B Mamba, Tobias G Barnard and Sabelo D Mhlanga
- Organization
- 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 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 a thermally-assisted one-pot synthesis method. The antibacterial AgNPs were embedded in polyvinylidene fluoride (PVDF) nanofibre membranes and their antibacterial activity against Gram-positive Geobacillus stearothermophilus and Staphylococcus aureus and Gram-negative Pseudomonas aeruginosa and Klebsiella pneumoniae was studied. The antibacterial nanofibres successfully inhibited the growth of these mesophilic and thermophilic bacteria. Therefore, AgNP-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.
- Keywords
- GOLD NANOPARTICLES, ACETATE NANOFIBERS, PES MEMBRANE, APPLE JUICE, DISTILLATION, CHITOSAN, MECHANISMS, NUCLEATION, PREVENTION, REDUCTION
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Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-8617578
- MLA
- Nthunya, Lebea et al. “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.” NEW JOURNAL OF CHEMISTRY 43.10 (2019): 4168–4180. Print.
- APA
- Nthunya, L., Derese, S., Gutierrez, L., Verliefde, A., Mamba, B. B., Barnard, T. G., & Mhlanga, S. D. (2019). 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. NEW JOURNAL OF CHEMISTRY, 43(10), 4168–4180.
- Chicago author-date
- Nthunya, Lebea, Sebastiaan Derese, Leonardo Gutierrez, Arne Verliefde, Bhekie B Mamba, Tobias G Barnard, and Sabelo D Mhlanga. 2019. “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.” New Journal of Chemistry 43 (10): 4168–4180.
- Chicago author-date (all authors)
- Nthunya, Lebea, Sebastiaan Derese, Leonardo Gutierrez, Arne Verliefde, Bhekie B Mamba, Tobias G Barnard, and Sabelo D Mhlanga. 2019. “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.” New Journal of Chemistry 43 (10): 4168–4180.
- Vancouver
- 1.Nthunya L, Derese S, Gutierrez L, Verliefde A, Mamba BB, Barnard TG, et al. 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. NEW JOURNAL OF CHEMISTRY. 2019;43(10):4168–80.
- IEEE
- [1]L. Nthunya et al., “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,” NEW JOURNAL OF CHEMISTRY, vol. 43, no. 10, pp. 4168–4180, 2019.
@article{8617578,
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 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 a thermally-assisted one-pot synthesis method. The antibacterial AgNPs were embedded in polyvinylidene fluoride (PVDF) nanofibre membranes and their antibacterial activity against Gram-positive Geobacillus stearothermophilus and Staphylococcus aureus and Gram-negative Pseudomonas aeruginosa and Klebsiella pneumoniae was studied. The antibacterial nanofibres successfully inhibited the growth of these mesophilic and thermophilic bacteria. Therefore, AgNP-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.},
author = {Nthunya, Lebea and Derese, Sebastiaan and Gutierrez, Leonardo and Verliefde, Arne and Mamba, Bhekie B and Barnard, Tobias G and Mhlanga, Sabelo D},
issn = {1144-0546},
journal = {NEW JOURNAL OF CHEMISTRY},
keywords = {GOLD NANOPARTICLES,ACETATE NANOFIBERS,PES MEMBRANE,APPLE JUICE,DISTILLATION,CHITOSAN,MECHANISMS,NUCLEATION,PREVENTION,REDUCTION},
language = {eng},
number = {10},
pages = {4168--4180},
title = {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},
url = {http://dx.doi.org/10.1039/c8nj06160b},
volume = {43},
year = {2019},
}
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