Eco-friendly synthesis of silver nanoparticles using Senna alata bark extract and its antimicrobial mechanism through enhancement of bacterial membrane degradation

Ontong, Julalak Chorachoo; Paosen, Supakit; Shankar, Shiv; Voravuthikunchai, Supayang Piyawan

doi:10.1016/j.mimet.2019.105692

Cited by 49 publications

(25 citation statements)

References 41 publications

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“…Moreover, another study revealed that treating several bacteria cultures (e.g. S. aureus, A. baumannii, E. coli, K. pneumoniae, P. aeruginosa , and Candida albicans ( C. albicans )) with 2 × MIC Ag NPs for 4 hours resulted in a rougher surface to the bacteria and eventually, fractured compared to the untreated cultures ( Figure 3 ) [ 34 ]. Au NPs also demonstrated antimicrobial actions: when tested on S. typhimurium , Au NPs contributed to membrane disruption and thereby necrotic cell death [ 35 ].…”

Section: Antimicrobial Mechanism Of Nanoparticlesmentioning

confidence: 99%

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Current approaches for the exploration of antimicrobial activities of nanoparticles

Rosli

Teow

Mahmoudi

2021

Science and Technology of Advanced Materials

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is currently pursuing a master's degree at Universiti Kebangsaan Malaysia (UKM). Her research focuses on the antimicrobial of nanoparticles for application in the industry. Dr. Teow Yeit Haan is a senior lecturer at UKM. Her expertise includes membrane synthesis and characterization, membrane application for water purification and wastewater treatment, membrane fouling, water disinfection technology, and adsorption. She had published more than 44 research articles, 22 conference proceedings, and 3 book chapters. Dr. Ebrahim Mahmoudi is working as a senior lecturer at UKM. He is researching separation and purification using polymeric membranes and membrane bioreactors. Current Approaches for the Exploration of Antimicrobial Activities of NanoparticlesInfectious diseases of bacterial and viral origins contribute to substantial mortality worldwide. Collaborative efforts have been underway between academia and the industry to develop technologies for a more effective treatment for such diseases. With their utility in various industrial applications, nanoparticles (NPs) offer promising potential as antimicrobial agents against bacterial and viral infections. NPs have been established to possess potent antimicrobial activities against various types of pathogens due to their unique characteristics and cell-damaging ability through several mechanisms. The recent accepted antimicrobial mechanisms possess by NPs include metal ion release, oxidative stress induction, and non-oxidative mechanisms. Another merit of NPs lies in the low likelihood of the development of microbial tolerance towards NPs,given the multiple simultaneous mechanisms of action against the pathogens targeting numerous gene mutations in those pathogens. Moreover, NPs provide a fascinating opportunity to curb microbial growth before infections: this outstanding feature has led to their utilization as active antimicrobial agents in different industrial applications, e.g. the coating of medical devices, incorporation in food packaging, promoting wound healing, and encapsulation with other potential materials for wastewater treatment. This review discusses the progress and achievements in the antimicrobial applications of NPs, factors contributing to their actions, mechanisms underlying their efficiency, and risks of their applications, including the antimicrobial action of metal nanoclusters (NCs).The review concludes with a discussion of the restrictions in present studies and future prospects of nanotechnology-based NPs development.

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Section: Antimicrobial Mechanism Of Nanoparticlesmentioning

confidence: 99%

“…The control (a, c, e, g, and i) without treated with Ag NPs, revealing a smooth surface. Cultures (b, d, f, h, j, and l), showing roughed surface with fracture after treated with Ag NPs [ 34 ] copyright 2019, Elsevier …”

Section: Antimicrobial Mechanism Of Nanoparticlesmentioning

confidence: 99%

Current approaches for the exploration of antimicrobial activities of nanoparticles

Rosli

Teow

Mahmoudi

2021

Science and Technology of Advanced Materials

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“…1,19,24,25 The mode of antibacterial activity of AgNPs has been proposed by various authors as its ability to act on multiple target sites including outer LPS, cell wall, cell membrane, proteins and DNA, leading to cell death. 15,20,24,26,27 Due to the wide application of metal nanoparticles in various fields, the research on the synthesis of various metal nanoparticles has increased significantly during the last decade. Physical and chemical methods are mainly applied for the production of metal nanoparticles, but they are not ecofriendly approaches due to drawbacks like expensiveness, enormous consumption of energy, involvement of hazardous chemicals, and generation of toxic byproducts.…”

Section: Introductionmentioning

confidence: 99%

<p>Biosynthesis of Silver Nanoparticles Using Culture Supernatant of <em>Shewanella</em> sp. ARY1 and Their Antibacterial Activity</p>

Mondal

Yadav

Mitra

et al. 2020

IJN

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Purpose In this study, silver nanoparticles (AgNPs) were biosynthesized using culture supernatant of strain Shewanella sp. ARY1, characterized and their antibacterial activity was investigated against Gram-negative bacteria Escherichia coli and Klebsiella pneumoniae. Methods The strain Shewanella sp. ARY1 was isolated from river Yamuna, Delhi and used for biosynthesis of AgNPs via extracellular approach. Biosynthesized AgNPs were characterized by UV-Visible (UV-Vis) spectrophotometer, fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), energy dispersive X-ray (EDX), transmission electron microscopy (TEM) and scanning electron microscopy (SEM). Antibacterial activity of AgNPs was determined by well diffusion, broth microdilution and streaking plate assay to determine the zone of inhibition (ZOI), minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC), respectively. The effect of AgNPs on treated bacteria was investigated by electron microscopy analysis. Further, the biocompatibility of AgNPs was tested against mice erythrocytes (RBC) by hemolytic assay. Results The UV-Vis spectral analysis revealed absorption maxima at 450 nm which confirmed the formation of AgNPs. The FTIR analysis suggested the involvement of various supernatant biomolecules, as reducing and capping agents in the synthesis of AgNPs. The XRD and EDX analysis confirmed the crystalline and metallic nature of AgNPs, respectively. The TEM and SEM analysis showed nanoparticles were spherical with an average size of 38 nm. The biosynthesized AgNPs inhibited the growth and formed a clear zone of inhibition (ZOI) against tested Gram-negative strains. The MIC and MBC were determined as 8-16 µg/mL and 32 µg/mL, respectively. Further, electron microscopy analysis of treated cells showed that AgNPs can damage the outer membrane, release of cytoplasmic contents, and alter the normal morphology of Gram-negative bacteria, leading to cell death. The hemolytic assay indicated that the biosynthesized AgNPs were biocompatible at low dose concentrations. Conclusion This study demonstrates an eco-friendly process for extracellular synthesis of AgNPs using Shewanella sp. ARY1 and these AgNPs exhibited excellent antibacterial activity, which may be used to combat Gram-negative pathogens.

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“…Different studies from recent years investigated the toxicity of nanosilver with respect to human tissues and demonstrated their applicability as safe therapeutic agents for pharmaceutical products [68,69]. An important fact is that the toxic effects exhibited by AgNPs are strongly influenced by their morphology and dimension.…”

Section: Toxicity Of Silver Nanoparticlesmentioning

confidence: 99%

An Updated Review on Silver Nanoparticles in Biomedicine

et al. 2020

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Silver nanoparticles (AgNPs) represent one of the most explored categories of nanomaterials for new and improved biomaterials and biotechnologies, with impressive use in the pharmaceutical and cosmetic industry, anti-infective therapy and wound care, food and the textile industry. Their extensive and versatile applicability relies on the genuine and easy-tunable properties of nanosilver, including remarkable physicochemical behavior, exceptional antimicrobial efficiency, anti-inflammatory action and antitumor activity. Besides commercially available and clinically safe AgNPs-based products, a substantial number of recent studies assessed the applicability of nanosilver as therapeutic agents in augmented and alternative strategies for cancer therapy, sensing and diagnosis platforms, restorative and regenerative biomaterials. Given the beneficial interactions of AgNPs with living structures and their nontoxic effects on healthy human cells, they represent an accurate candidate for various biomedical products. In the present review, the most important and recent applications of AgNPs in biomedical products and biomedicine are considered.

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Eco-friendly synthesis of silver nanoparticles using Senna alata bark extract and its antimicrobial mechanism through enhancement of bacterial membrane degradation

Cited by 49 publications

References 41 publications

Current approaches for the exploration of antimicrobial activities of nanoparticles

Current approaches for the exploration of antimicrobial activities of nanoparticles

<p>Biosynthesis of Silver Nanoparticles Using Culture Supernatant of <em>Shewanella</em> sp. ARY1 and Their Antibacterial Activity</p>

An Updated Review on Silver Nanoparticles in Biomedicine

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