Evaluation of the toxicities of silver and silver sulfide nanoparticles against Gram‐positive and Gram‐negative bacteria

Subramaniyan, Siva Bala; Megarajan, Sengan; Vijayakumar, Santhosh; Mariappan, Mariappan; Veerappan, Anbazhagan

doi:10.1049/iet-nbt.2018.5221

Cited by 11 publications

(7 citation statements)

References 31 publications

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“…However, because of their photocatalytic properties, AgX NPs are unstable under visible light irradiation, which results in the decline of their antimicrobial behavior over time [ 144 ]. Antimicrobial activities have also been reported for other Ag-related NPs, such as Ag 2 S [ 145 ] and Ag 2 Se [ 146 ].…”

Section: Ag and Cu Npsmentioning

confidence: 99%

Antimicrobial Properties of the Ag, Cu Nanoparticle System

Fan

Yahia

Sacher

2021

Biology

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Microbes, including bacteria and fungi, easily form stable biofilms on many surfaces. Such biofilms have high resistance to antibiotics, and cause nosocomial and postoperative infections. The antimicrobial and antiviral behaviors of Ag and Cu nanoparticles (NPs) are well known, and possible mechanisms for their actions, such as released ions, reactive oxygen species (ROS), contact killing, the immunostimulatory effect, and others have been proposed. Ag and Cu NPs, and their derivative NPs, have different antimicrobial capacities and cytotoxicities. Factors, such as size, shape and surface treatment, influence their antimicrobial activities. The biomedical application of antimicrobial Ag and Cu NPs involves coating onto substrates, including textiles, polymers, ceramics, and metals. Because Ag and Cu are immiscible, synthetic AgCu nanoalloys have different microstructures, which impact their antimicrobial effects. When mixed, the combination of Ag and Cu NPs act synergistically, offering substantially enhanced antimicrobial behavior. However, when alloyed in Ag–Cu NPs, the antimicrobial behavior is even more enhanced. The reason for this enhancement is unclear. Here, we discuss these results and the possible behavior mechanisms that underlie them.

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Section: Ag and Cu Npsmentioning

confidence: 99%

Antimicrobial Properties of the Ag, Cu Nanoparticle System

Fan

Yahia

Sacher

2021

Biology

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“…The extent of antibacterial activity exhibited by the Md-Lec-pCuS NPs complex was evaluated by dual staining using propidium iodide (PI) and acridine orange (AO). 28 Briey, cells were allowed to grow to mid-log phase in the presence of Md-Lec-pCuS NPs complex and then the cells were collected and washed twice with PBS buffer and resuspended in an equal volume of the buffer. AO/PI at a concentration of 0.5 mM was added to the bacterial culture.…”

Section: Lectin Activity Assaymentioning

confidence: 99%

Shrimp lectin (Md-Lec) conjugated copper sulfide nanoparticles enhance the elimination of aquatic pathogens in infected Nile tilapia (Oreochromis niloticus)

Rubeena,

Lakshmi,

George

et al. 2020

RSC Adv.

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“…Among these, the advantages of a broad spectrum of antibacterial activity make Ag the most studied and widely used metal-based antibacterial agent on Ti substrates [ 45 , 46 , 47 ]. Ag NPs have been proven to have a good killing effect on both Gram-positive cocci (e.g., S. aureus ) and Gram-negative bacilli (e.g., Escherichia coli ) [ 48 , 49 , 50 ]. In the study reported by Guan et al, a novel surface strategy involving the formation of polydopamine (PDA) and Ag nanoparticle-loaded TiO 2 NRDs coatings on Ti alloy was developed.…”

Section: Discussionmentioning

confidence: 99%

In Vivo Antibacterial Efficacy of Nanopatterns on Titanium Implant Surface: A Systematic Review of the Literature

et al. 2021

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Background: Bionic surface nanopatterns of titanium (Ti) materials have excellent antibacterial effects in vitro for infection prevention. To date, there is a lack of knowledge about the in vivo bactericidal outcomes of the nanostructures on the Ti implant surfaces. Methods: A systematic review was performed using the PubMed, Embase, and Cochrane databases to better understand surface nanoscale patterns’ in vivo antibacterial efficacy. The inclusion criteria were preclinical studies (in vivo) reporting the antibacterial activity of nanopatterns on Ti implant surface. Ex vivo studies, studies not evaluating the antibacterial activity of nanopatterns or surfaces not modified with nanopatterns were excluded. Results: A total of five peer-reviewed articles met the inclusion criteria. The included studies suggest that the in vivo antibacterial efficacy of the nanopatterns on Ti implants’ surfaces seems poor. Conclusions: Given the small number of literature results, the variability in experimental designs, and the lack of reporting across studies, concluding the in vivo antibacterial effectiveness of nanopatterns on Ti substrates’ surfaces remains a big challenge. Surface coatings using metallic or antibiotic elements are still practical approaches for this purpose. High-quality preclinical data are still needed to investigate the in vivo antibacterial effects of the nanopatterns on the implant surface.

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Evaluation of the toxicities of silver and silver sulfide nanoparticles against Gram‐positive and Gram‐negative bacteria

Cited by 11 publications

References 31 publications

Antimicrobial Properties of the Ag, Cu Nanoparticle System

Antimicrobial Properties of the Ag, Cu Nanoparticle System

Shrimp lectin (Md-Lec) conjugated copper sulfide nanoparticles enhance the elimination of aquatic pathogens in infected Nile tilapia (Oreochromis niloticus)

In Vivo Antibacterial Efficacy of Nanopatterns on Titanium Implant Surface: A Systematic Review of the Literature

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