Systematic green synthesis of silver oxide nanoparticles for antimicrobial activity

Mani, M.; Harikrishnan, Ramasamy; Purushothaman, P.; Pavithra, S.; Rajkumar, P.; Kumaresan, S.; Farraj, Dunia A. Al; Elshikh, Mohamed S.; Balasubramanian, Balamuralikrishnan; Kaviyarasu, K.

doi:10.1016/j.envres.2021.111627

Cited by 70 publications

(17 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Despite variation in phytochemical composition in line with our results, green synthesized nanoparticles using conspecific plant species (e.g., Rumex dantatus, Rumex hastatus, and Rumex scutatus ) have been shown bactericidal action against various drug-resistant bacterial pathogens ( Ahmed et al, 2016 ; Rashid et al, 2019 ; Mani et al, 2021 ; Unal et al, 2022 ). However, the antibacterial efficacy of AgNPs is a function of phytochemicals acting as reducing and stabilizing agents ( Ovais et al, 2018 ), pH, temperature, test microorganisms, concentration and their size and shape ( Raza et al, 2016 ; Tang and Zheng, 2018 ; Hu et al, 2022 ).…”

Section: Resultssupporting

confidence: 81%

“…On the other hand, the high ZOI and low MIC and MBC by gram-negative bacteria such as E. coli and S. typhimurium indicate their sensitivity to Rn-AgNPs because of the negatively charged lipopolysaccharides that promote nanoparticles adhesion (Pal et al, 2007;Netala et al, 2014) and the presence of porins that facilitate Rn-AgNPs entrance (Chauhan et al, 2016;Rashid et al, 2017). Despite variation in phytochemical composition in line with our results, green synthesized nanoparticles using conspecific plant species (e.g., Rumex dantatus, Rumex hastatus, and Rumex scutatus) have been shown bactericidal action against various drug-resistant bacterial pathogens (Ahmed et al, 2016;Rashid et al, 2019;Mani et al, 2021;Unal et al, 2022). However, the antibacterial efficacy of AgNPs is a function of phytochemicals acting as reducing and stabilizing agents (Ovais et al, 2018), pH, temperature, test microorganisms, concentration and their size and shape (Raza et al, 2016;Tang and Zheng, 2018;Hu et al, 2022).…”

Section: Antimicrobial Activity Of the Agnpssupporting

confidence: 71%

See 1 more Smart Citation

Biosynthesis of silver nanoparticles using extract of Rumex nepalensis for bactericidal effect against food-borne pathogens and antioxidant activity

Geremew

Carson

Woldesenbet

2022

Front. Mol. Biosci.

View full text Add to dashboard Cite

The evolution and incidence of multidrug-resistant food-borne pathogens still become a critical public health global issue. To avert this challenge there is great interest in medical applications of silver nanoparticles. Thus, this study aimed to synthesize silver nanoparticles (Rn-AgNPs) using aqueous leaf extract of Nepal Dock (Rumex nepalensis Spreng) and evaluate their antibacterial potential against food-borne pathogens and antioxidant activity. The Rn-AgNPs were characterized by UV-Vis spectrophotometry, Dynamic Light Scattering (DLS), Scanning Electron Microscopy (SEM), and Fourier Transform Infra-Red Spectroscopy (FTIR). The antibacterial activities of the Rn-AgNPs were evaluated using agar well diffusion (zone of inhibition, ZOI) and microdilution (minimum inhibitory concentration, MIC and minimum bactericidal concentration, MBC) methods. The antioxidant property of the Rn-AgNPs was investigated using radical scavenging (DPPH and hydroxyl) assays. The UV-Vis spectra of Rn-AgNPs elucidated the absorption maxima at 425 nm and FTIR detected numerous functional groups of biological compounds that are responsible for capping and stabilizing Rn-AgNPs. DLS analysis displayed monodispersed Rn-AgNPs of 86.7 nm size and highly negative zeta potential (-32.5 mV). Overall results showed that Escherichia coli was the most sensitive organism, whereas Staphylococcus aureus was the least sensitive against Rn-AgNPs. In the antioxidant tests, the AgNPs radical scavenging activity reached 95.44% at 100 μg/ml. This study indicates that Rn-AgNPs exhibit a strong antimicrobial on L. monocytogenes, S. aureus, S. typhimurium, and E. coli and antioxidant and thus might be developed as a new type of antimicrobial agent for the treatment of multidrug-resistant foodborne pathogens and extensible applications in nanomaterial food- and nanocomposite-based antimicrobial packaging and/or as an antioxidant.

show abstract

Section: Resultssupporting

confidence: 81%

Section: Antimicrobial Activity Of the Agnpssupporting

confidence: 71%

Biosynthesis of silver nanoparticles using extract of Rumex nepalensis for bactericidal effect against food-borne pathogens and antioxidant activity

Geremew

Carson

Woldesenbet

2022

Front. Mol. Biosci.

View full text Add to dashboard Cite

show abstract

“…There is an urgent need to develop new effective alternatives to solve the problem of resistance, associating nanotechnology with health science, to combine the synergistic effects of nanomaterials with their specific properties [4][5][6][7][8]. Recently, the application of nanomaterials with antibacterial activity, such as silver (AgNPs) [9,10] and zinc nanoparticles [11], has been attracted due to the flexibility on the application of these nanoparticles (such as on surfaces infected for bacteria) and due to the possibility to obtain low-cost materials using green synthesis (biosynthesis).…”

Section: Introductionmentioning

confidence: 99%

Green Nanoarchitectonics of Silver Nanoparticles for Antimicrobial Activity Against Resistant Pathogens

Chuy

Muraro

Viana

et al. 2021

J Inorg Organomet Polym

View full text Add to dashboard Cite

“…Previous studies have manifested that Ag + was important for the antibacterial activity of Ag NPs . Ag NPs can interact with sulfur-containing proteins on the cell wall and phosphorus-containing compounds in the cytoplasm, making cell respiration and division abnormal, resulting in bacterial death . In this work, the Ag + released from Ag NPs was examined.…”

Section: Resultsmentioning

confidence: 98%

“…46 Ag NPs can interact with sulfur-containing proteins on the cell wall and phosphorus-containing compounds in the cytoplasm, making cell respiration and division abnormal, resulting in bacterial death. 47 In this work, the Ag + released from Ag NPs was examined. Figure 2D revealed that Ag + was constantly released over time.…”

Section: Release Of Ag +mentioning

confidence: 99%

Photothermal Therapy with Ag Nanoparticles in Mesoporous Polydopamine for Enhanced Antibacterial Activity

Wang

Zou

et al. 2023

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

Photothermal therapy (PTT) is a promising method to kill pathogenic bacteria. However, using single-modal PTT, it is easy to cause tissue damage because of the overtemperature. Hence, it is necessary to combine PTT with other antibacterial strategies. In this study, we employed silver nanoparticles (Ag NPs) and mesoporous polydopamine (MPDA) nanoparticles to establish a multimodal antibacterial platform (MPDA@Ag). MPDA nanoparticles not only served as a photothermal transduction agent to convert light-energy to heat under the irradiation of near-infrared (NIR) light but also acted as a reducer to reduce Ag NPs in situ. Because Ag NPs can effectively kill bacteria, MPDA@Ag can overcome the drawbacks of the single-modal PTT antibacterial strategy, achieving a synergistic antibacterial effect. Moreover, as an antibiotic-free strategy, MPDA@Ag was less likely to induce drug resistance when killing bacteria. In summary, this platform offered a simple and practical means to achieve excellent antibacterial activity and supplied a good alternative to fight pathogenic bacteria.

show abstract

Systematic green synthesis of silver oxide nanoparticles for antimicrobial activity

Cited by 70 publications

References 35 publications

Biosynthesis of silver nanoparticles using extract of Rumex nepalensis for bactericidal effect against food-borne pathogens and antioxidant activity

Biosynthesis of silver nanoparticles using extract of Rumex nepalensis for bactericidal effect against food-borne pathogens and antioxidant activity

Green Nanoarchitectonics of Silver Nanoparticles for Antimicrobial Activity Against Resistant Pathogens

Photothermal Therapy with Ag Nanoparticles in Mesoporous Polydopamine for Enhanced Antibacterial Activity

Contact Info

Product

Resources

About