Study of antimicrobial activity of silver nanoparticles synthesized using green and chemical approach

Chahar, Vikas; Sharma, Bhawna; Shukla, Geeta; Srivastava, Alok Kumar; Bhatnagar, Archana

doi:10.1016/j.colsurfa.2018.06.012

Cited by 48 publications

(26 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The antimicrobial activity of AgNPs is related to different factors such as size, shape, concentration, surface charge, and tolerance of bacteria to nanoparticles [55]. In this study, there are significant differences in the antimicrobial efficiency of samples obtained by exhaustion and spray methods for both Gram-positive and Gram-negative bacteria ( Figures 5 and 6).…”

Section: Antimicrobial Activitymentioning

confidence: 72%

Effect of Dispersion Solvent on the Deposition of PVP-Silver Nanoparticles onto DBD Plasma-Treated Polyamide 6,6 Fabric and Its Antimicrobial Efficiency

et al. 2020

View full text Add to dashboard Cite

Polyvinylpyrrolidone-coated silver nanoparticles (PVP-AgNPs) dispersed in ethanol, water and water/alginate were used to functionalize untreated and dielectric barrier discharge (DBD) plasma-treated polyamide 6,6 fabric (PA66). The PVP-AgNPs dispersions were deposited onto PA66 by spray and exhaustion methods. The exhaustion method showed a higher amount of deposited AgNPs. Water and water-alginate dispersions presented similar results. Ethanol amphiphilic character showed more affinity to AgNPs and PA66 fabric, allowing better uniform surface distribution of nanoparticles. Antimicrobial effect in E. coli showed good results in all the samples obtained by exhaustion method but using spray method only the DBD plasma treated samples displayed antimicrobial activity (log reduction of 5). Despite the better distribution achieved using ethanol as a solvent, water dispersion samples with DBD plasma treatment displayed better antimicrobial activity against S. aureus bacteria in both exhaustion (log reduction of 1.9) and spray (methods log reduction of 1.6) due to the different oxidation states of PA66 surface interacting with PVP-AgNPs, as demonstrated by X-ray Photoelectron Spectroscopy (XPS) analysis. Spray method using the water-suspended PVP-AgNPs onto DBD plasma-treated samples is much faster, less agglomerating and uses 10 times less PVP-AgNPs dispersion than the exhaustion method to obtain an antimicrobial effect in both S. aureus and E. coli.

show abstract

Section: Antimicrobial Activitymentioning

confidence: 72%

Effect of Dispersion Solvent on the Deposition of PVP-Silver Nanoparticles onto DBD Plasma-Treated Polyamide 6,6 Fabric and Its Antimicrobial Efficiency

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Formation of AgNPs in the reaction mixture exposed to sunlight produced a gradual color change (Figure 1) due to the excitation of strong surface plasmon vibration with the AgNPs in the visible region [43,44,45]. The synthesized AgNPs exhibited a clear surface plasmon resonance resulting in the formation of a sharp peak at 421 nm wavelength in the UV-visible spectra (Figure 2), which was specific for the synthesized spherical AgNPs [46,47].…”

Section: Resultsmentioning

confidence: 99%

Silver Nanoparticles Synthesized by Using the Endophytic Bacterium Pantoea ananatis are Promising Antimicrobial Agents against Multidrug Resistant Bacteria

Rahman²,

et al. 2018

View full text Add to dashboard Cite

Antibiotic resistance is one of the most important global problems currently confronting the world. Different biomedical applications of silver nanoparticles (AgNPs) have indicated them to be promising antimicrobial agents. In the present study, extracellular extract of an endophytic bacterium, Pantoea ananatis, was used for synthesis of AgNPs. The synthesized AgNPs were characterized by UV–Vis spectroscopy, FTIR, transmission electron microscopy (TEM), scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDX), and Zeta potential. The antimicrobial potential of the AgNPs against pathogenic Staphylococcus aureus subsp. aureus (ATCC 11632), Bacillus cereus (ATCC 10876), Escherichia coli (ATCC 10536), Pseudomonas aeruginosa (ATCC 10145) and Candida albicans (ATCC 10231), and multidrug resistant (MDR) Streptococcus pneumoniae (ATCC 700677), Enterococcus faecium (ATCC 700221) Staphylococcus aureus (ATCC 33592) Escherichia coli (NCTC 13351) was investigated. The synthesized spherical-shaped AgNPs with a size range of 8.06 nm to 91.32 nm exhibited significant antimicrobial activity at 6 μg/disc concentration against Bacillus cereus (ATCC 10876) and Candida albicans (ATCC 10231) which were found to be resistant to conventional antibiotics. The synthesized AgNPs showed promising antibacterial efficiency at 10 µg/disc concentration against the MDR strains. The present study suggests that AgNPs synthesized by using the endophytic bacterium P. ananatis are promising antimicrobial agent.

show abstract

“…Khatoon et al [42] synthesized colloidal AgNPs by using NaBH4 as reducing agent and trisodium citrate as a stabilizing agent. Chahar et al [43] have prepared AgNPs by using different stabilizing agents like gelatin, polyvinyl alcohol (PVA) and polyvinyl pyrrolidone (PVP). Ye et al [44] had synthesized AgNPs by using gelatin as a reducing agent and stabilizing agent.…”

Section: Chemical Methodsmentioning

confidence: 99%

An Assortment of Synthesis Methods of Silver Nanoparticles: A Review

Jayaprakash¹,

Suresh²,

Raja³

et al. 2019

Asian J. Chem.

View full text Add to dashboard Cite

In last few decades, synthesis of metal nanoparticles such as silver, gold, copper, platinum and iron has been spotlighted with much interest among the material scientists due to their peculiar properties such as tunable optical property, electrical property, good chemical reactivity, thermal stability, large surface areas to volume ratio, magnetic property, high catalytic activity and easy handling [1,2]. They have been used in diverse fields such as cosmetics, medical diagnosis, therapy, energy, electronic devices, catalysis, sensors and waste treatment process [3-6]. Among the metal nanoparticles, silver nanoparticles (AgNPs) have much interest due to their exclusive physical, chemical and biological properties compared to bulk material. It has been used in inks [7

show abstract

Study of antimicrobial activity of silver nanoparticles synthesized using green and chemical approach

Cited by 48 publications

References 38 publications

Effect of Dispersion Solvent on the Deposition of PVP-Silver Nanoparticles onto DBD Plasma-Treated Polyamide 6,6 Fabric and Its Antimicrobial Efficiency

Effect of Dispersion Solvent on the Deposition of PVP-Silver Nanoparticles onto DBD Plasma-Treated Polyamide 6,6 Fabric and Its Antimicrobial Efficiency

Silver Nanoparticles Synthesized by Using the Endophytic Bacterium Pantoea ananatis are Promising Antimicrobial Agents against Multidrug Resistant Bacteria

An Assortment of Synthesis Methods of Silver Nanoparticles: A Review

Contact Info

Product

Resources

About