Silver Nanoparticles in Water Purification: Opportunities and Challenges

Gadkari, Rahul R.; Ali, S. Wazed; Alagirusamy, R.; Das, Apurba

doi:10.1007/978-3-319-64501-8_13

Cited by 21 publications

(7 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Currently, there are several commercial AgNP products widely used in the medical and food industries and water treatment plants ( McNamara and Tofail, 2017 ; Gadkari et al., 2018 ; Jaiswal et al., 2019 ). This wide use implies that metal compounds are constantly released into the aquatic environment through sewage and wastewater disposal ( Das et al., 2012 ; Singh et al., 2019 ).…”

Section: Discussionmentioning

confidence: 99%

“…Silver nanoparticles (AgNPs) are one of the most widely studied nanomaterials ( Guo et al., 2019 ; Kawish et al., 2020 ; Saeed et al., 2020 ) because of their chemical stability, malleability, flexibility, high electrical and thermal conductivity, catalytic activity, relatively low cost, and, mainly, potent antimicrobial action ( Durán et al., 2019 ). These unique properties have led AgNPs to find application in the medical industry (wound dressing, surgical instrument, and bone prosthesis production), textile industry (garment production), food industry (food packaging, countertop, and cutting board materials), and wastewater treatment ( McNamara and Tofail, 2017 ; Gadkari et al., 2018 ).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Subinhibitory Concentrations of Biogenic Silver Nanoparticles Affect Motility and Biofilm Formation in Pseudomonas aeruginosa

Saeki¹,

Yamada²,

Araujo³

et al. 2021

Front. Cell. Infect. Microbiol.

View full text Add to dashboard Cite

Biogenic silver nanoparticles (bio-AgNPs) are increasingly recognized as an antibiofilm and antivirulence strategy against P. aeruginosa, a bacterium that causes chronic infections in immunocompromised and cystic fibrosis patients. This study aimed to investigate the effects of subinhibitory concentrations of bio-AgNPs on motility and biofilm formation in P. aeruginosa. Bio-AgNPs were synthesized via reduction of ionic silver catalyzed by cell-free culture filtrate from Fusarium oxysporum. A total of 17 P. aeruginosa isolates and strains were evaluated for swarming, swimming, and twitching motility in the presence and absence (control) of bio-AgNPs, including 10 clinical isolates from patients with and without cystic fibrosis, 5 environmental isolates obtained from the public water supply system, and 2 reference strains (PAO1 and PA14). Isolates were identified by biochemical and molecular methods. Minimum inhibitory concentrations (MICs) were determined by the broth microdilution method. Swarming, swimming, and twitching motility assays were performed in Petri dishes. Biofilm formation capacity was assessed quantitatively by the crystal violet method. MIC values ranged from 15.62 to 62.50 µM. The results showed that subinhibitory concentrations of bio-AgNPs (½ MIC, 7.81–31.25 µM) significantly increased (p < 0.05) swarming, swimming, and twitching motility in 40.0, 40.0, and 46.7% of isolates, respectively. Subinhibitory bio-AgNP treatment enhanced (p < 0.05) biofilm formation capacity in PA14 and a cystic fibrosis isolate (P11). It is concluded that subinhibitory concentrations of bio-AgNPs increased biofilm formation and swarming, swimming, and twitching motility in PA14 and some P. aeruginosa isolates. These virulence factors are directly involved with quorum-sensing systems. Further research should investigate the effects of AgNPs on P. aeruginosa quorum sensing to help elucidate their mechanism of action at subinhibitory concentrations.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Subinhibitory Concentrations of Biogenic Silver Nanoparticles Affect Motility and Biofilm Formation in Pseudomonas aeruginosa

Saeki¹,

Yamada²,

Araujo³

et al. 2021

Front. Cell. Infect. Microbiol.

View full text Add to dashboard Cite

show abstract

“…The Purification of water by silver seems to be wide spread to a long time and traditionally applied in in different fields [62,63]. Evaluations of antimicrobial effect of AgNPs against contaminated river water was achieved to six samples from Dyala and Al Gherait river and tested by the standard methods for water inspection.…”

Section: Ii) Effect Of Agnps With River Water Treatmentmentioning

confidence: 99%

NanoSilver/CS Solutions Optical Characterizations and Some Applications

Beden¹,

Dambos²,

Abdulnabi³

et al. 2023

RCMA

View full text Add to dashboard Cite

In this paper we demonstrate physical method (Gamma irradiation technique) for synthesizing Ag-NPs when there is no reduction agent or heat treatment as useful in antimicrobial applications and medical devices. As a strong support, stabilizer, and silver precursor, Chitosan (CS) and AgNO3 were utilized. Ag/Cs characteristics were investigated as a function of gamma dose and -irradiation periods in recent published paper. For conducting the research in Ag-CS-Isopropanol (IPA) by gamma Irradiation method, here we used UV-vis spectroscopy for examining energy gap and Plasmon resonance of surface (SPR) of the produced silver nanoparticles (Ag-NPs). Manufactured Ag-NP UV-vis spectroscopy revealed as the gamma dose increased, the highest wavelength intensity of the plasmon peaks rose. and with energy gap in rang (2.1-2.4) eV. The effect of Ag/CS-APA solutions has examined due on human blood properties and antibacterial activity to water samples selected from local riverbank in Iraq. Overall, the optical characteristic of Ag-CS-APA nanocomposite solution make them promising material for optical thin films and as antibacterial agent in health sector.

show abstract

“…Silver is known for its antibacterial effectiveness over a range of microorganisms and ease of incorporation on various substrates [29]. Extensive research has been done for the development of antibacterial nonwovens using silver nanoparticles (Ag-NPs).…”

Section: Introductionmentioning

confidence: 99%

Configuration of a unique antibacterial needle-punched nonwoven fabric from silver impregnated polyester nanocomposite fibres

Gadkari

Ali

Das

et al. 2020

Journal of Industrial Textiles

Self Cite

View full text Add to dashboard Cite

The current study aims to mitigate the problems arising due to leach-out of silver nanoparticles (Ag-NPs) from an antibacterial material developed using silver coating or finishes. Polyester (PET) staple fibres with Ag-NPs firmly integrated within them were used to prepare needle-punched nonwoven fabric. To further enhance the antibacterial efficiency, the nonwoven surface was etched via alkaline hydrolysis such that the Ag-NPs are exposed to the bacterial cell wall. The antibacterial activity of the nonwoven made of PET-Ag-NPs nanocomposite fibres (P/Ag-NFs) against S. aureus and E. coli bacteria was found to be increased after hydrolysis by 4.5% and 6.5%, respectively. The amount of silver leach-out from the developed antibacterial media was 0.01 ppm for 24 h immersion time, which is in compliance with regulations of National Institute for Occupational Safety and Health (0.01 mg/m3), as well as that of WHO (0.1 ppm). Moreover, the nonwoven was effective in killing up to 94% and 98% S. aureus and E. coli bacteria, respectively. Hence, the developed nonwoven fabric can safely be used for medical and health care textiles, antibacterial clothing and for the development of dry/wet filtration media.

show abstract

Silver Nanoparticles in Water Purification: Opportunities and Challenges

Cited by 21 publications

References 26 publications

Subinhibitory Concentrations of Biogenic Silver Nanoparticles Affect Motility and Biofilm Formation in Pseudomonas aeruginosa

Subinhibitory Concentrations of Biogenic Silver Nanoparticles Affect Motility and Biofilm Formation in Pseudomonas aeruginosa

NanoSilver/CS Solutions Optical Characterizations and Some Applications

Configuration of a unique antibacterial needle-punched nonwoven fabric from silver impregnated polyester nanocomposite fibres

Contact Info

Product

Resources

About