Antibacterial Activity and Mechanism of Action of the Silver Ion in
            <i>Staphylococcus aureus</i>
            and
            <i>Escherichia coli</i>

Jung, Woo Kyung; Koo, Hye Cheong; Kim, Ki Woo; Shin, Sook; Kim, So Hyun; Park, Taesung

doi:10.1128/aem.02001-07

Cited by 1,671 publications

(926 citation statements)

References 32 publications

Supporting

Mentioning

855

Contrasting

Unclassified

Order By: Relevance

“…This will be lacking in case of bare-AgNPs, due to absence of the polyamine. Although reported earlier that Gram-positive bacteria shows greater resistance to silver nanoparticles (Feng et al 2000;Jung et al 2008), but antimicrobial efficacy of the newly synthesized put-AgNPs against all the four Gram-positive bacterial strains (B. cereus, B. subtilis, M. luteus and S. aureus) is noteworthy. Interestingly, the MICs of put-AgNPs against all bacterial strains were in their minimum values than compared to the bare-AgNPs.…”

Section: Minimum Inhibitory Concentrationmentioning

confidence: 99%

Production of putrescine-capped stable silver nanoparticle: its characterization and antibacterial activity against multidrug-resistant bacterial strains

Saha

Gupta²,

Gupta³

et al. 2016

Appl Nanosci

View full text Add to dashboard Cite

Integration of biology with nanotechnology is now becoming attention-grabbing area of research. The antimicrobial potency of silver has been eminent from antiquity. Due to the recent desire for the enhancement of antibacterial efficacy of silver, various synthesis methods of silver in their nano dimensions are being practiced using a range of capping material. The present work highlights a facile biomimetic approach for production of silver nanoparticle being capped and stabilized by putrescine, possessing a diameter of 10-25 ± 1.5 nm. The synthesized nanoparticles have been analyzed spectrally and analytically. Morphological studies are carried out by high-resolution transmission electron microscopy and crystallinity by selected area electron diffraction patterns. Moreover, the elemental composition of the capped nanoparticles was confirmed by energy-dispersive X-ray spectroscopy analysis. A comparative study (zone of inhibition and minimum inhibitory concentration) regarding the interactions and antibacterial potentiality of the capped silver nanoparticles with respect to the bare ones reveal the efficiency of the capped one over the bare one. The bacterial kinetic study was executed to monitor the interference of nanoparticles with bacterial growth rate. The results also highlight the efficacy of putrescine-capped silver nanoparticles as effective growth inhibitors against multi-drug resistant human pathogenic bacterial strains, which may, thus, potentially be applicable as an effective antibacterial control system to fight diseases.

show abstract

Section: Minimum Inhibitory Concentrationmentioning

confidence: 99%

Production of putrescine-capped stable silver nanoparticle: its characterization and antibacterial activity against multidrug-resistant bacterial strains

Saha

Gupta²,

Gupta³

et al. 2016

Appl Nanosci

View full text Add to dashboard Cite

show abstract

“…The teikoic acids are negatively charged (having -COOH or -COO-group and phosphate group), thus providing a negative charge on the surface of bacterial cells. Silver nanoparticles have a positive charge (Ag + ), making it easier to bind to the negatively charged surface of the bacteria (Kim et al, 2007;Feng et al, 2000;and Jung et al, 2008). The -COO-group will bind with Ag + .…”

Section: The Sem Photograph Of the Bacterial Cellulosementioning

confidence: 99%

Bacterial Cellulose From Rice Waste Water and Its Composite Which Are Deposited Nanoparticle as an Antimicrobial Material

2016

View full text Add to dashboard Cite

Bacterial cellulose (C) and its composites were synthesized from rice waste water with addition of glycerol (G) and chitosan (Ch). Antibacterial activity of the C, the bacterial cellulose-chitosan composite (CCh), and the bacterial cellulose -glycerolchitosan composite (CGCh) which were deposited silver nanoparticles against S. aureus, E. coli, and yeast C. albicans has been conducted. Silver nanoparticles was prepared by chemical reduction of a silver nitrate solution, a trisodium citrate as a reductor, and a PVA as a stabilizer. The UV-Vis spectroscopy is used to determine the formation of silver nanoparticles. The characterization was conducted on the bacterial celluloses and those composites including the functional groups by the FTIR, the mechanical properties by Tensile Tester, photos surfaces by SEM, and the test of the antibacterial activity against S. aureus, E. coli, and C. albicans by diffusion method. The silver nanoparticle characterization indicates that the silver nanoparticles are formed at a wavelength of 418.80 nm. The antibacterial test showed an inhibitory effect of the C, the CCh, and the CGCh which are deposited the silver nanoparticles against of S. aureus, E. coli, and C.albicans. The CGChs which are deposited silver nanoparticles has the highest antimicrobial activity against the Staphylococcus aureus ATCC 25923. The CGs which are deposited silver nanoparticles provide the highest antimicrobial activity against the E. coli ATCC 25922 and the yeast Candida albicans ATCC 10231.

show abstract

“…Test cultures were then incubated for 24 h at 37 °C. Antimicrobial activity was evaluated using agar well diffusion method [20], plate count method [21] and contact method [22].…”

Section: Antimicrobial Assaymentioning

confidence: 99%

Synthesis of ZnO Nanoparticles by Precipitation Method with Their Antibacterial Effect

2018

View full text Add to dashboard Cite

The aim of this study was to synthesize and characterize Zinc oxide nanoparticles (ZnO-NPs) 105,13, 78,53, dan 76,43 nm, sedangkan pada sampel dengan kalsinasi (T60C, T80C dan T100C) masing-masing memiliki ukuran partikel rata-rata 88,73, 44,30 dan 543,77 Keywords: synthesis of nanoparticles; calcination; ZnO nanoparticles; antimicrobial ABSTRAK Tujuan dari penelitian ini adalah untuk mensintesis dan mengkarakterisasi nanopartikel ZnO (ZnO-NPs) yang disintesis dengan metode presipitasi. Seng nitrat digunakan sebagai bahan baku, natrium hidroksida digunakan sebagai reduktor dan biopolimer pektin sebagai capping agent. ZnO-NPs disintesis pada tiga variasi suhu berbeda (60, 80 dan 100 °C) dan dengan perlakuan kalsinasi (500 °C). Hasil pengukuran Particle size analyzer (PSA) menunjukkan bahwa sampel tanpa kalsinasi (T60, T80 dan T100) memiliki ukuran partikel rata-rata masing-masing

show abstract

Antibacterial Activity and Mechanism of Action of the Silver Ion in Staphylococcus aureus and Escherichia coli

Cited by 1,671 publications

References 32 publications

Production of putrescine-capped stable silver nanoparticle: its characterization and antibacterial activity against multidrug-resistant bacterial strains

Production of putrescine-capped stable silver nanoparticle: its characterization and antibacterial activity against multidrug-resistant bacterial strains

Bacterial Cellulose From Rice Waste Water and Its Composite Which Are Deposited Nanoparticle as an Antimicrobial Material

Synthesis of ZnO Nanoparticles by Precipitation Method with Their Antibacterial Effect

Contact Info

Product

Resources

About