Antimicrobial studies of metal and metal oxide nanoparticles

Kumar, V. Vinod; Anthony, Savarimuthu Philip

doi:10.1016/b978-0-323-42861-3.00009-1

Cited by 40 publications

(27 citation statements)

References 152 publications

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“…Nanoparticles have a higher level than other antifungal agents, and in addition, they have a better penetration in tissues and cells. Some metal oxide nanoparticles, such as zinc oxide, copper oxide, and silver oxide, have many antimicrobial effects [15,26]. The purpose of this study was to synthesize chitosan-silver-copper nanocomposite and to investigate its antifungal effects on C. albicans.…”

Section: Introductionmentioning

confidence: 99%

Antimicrobial effect of chitosan–silver–copper nanocomposite on Candida albicans

et al. 2020

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Candida is a common yeast in opportunistic fungal diseases around the world and is usually colonized on the skin and mucosal membranes. The purpose of this study was to synthesize chitosan-silver-copper nanocomposite and to investigate its antifungal effects on Candida albicans. Silver, copper and chitosan nanoparticles were synthesized individually. Then, copper-silver-chitosan nanocomposite was synthesized. These nanoparticles are approved by transmission electron microscope, and nanocomposite structure was also confirmed by scanning electron microscope. Then, the minimum inhibitory concentrations and minimum fungicidal of these nanostructures were examined on C. albicans. The results of this study indicate that the properties and effects of the investigated nanocomposite are comparable to amphotericin B as standard material. The results show that this effect was higher for copper-silver-chitosan nanocomposite than for other nanoparticles studied. Antifungal effect of copper nanoparticles and chitosan nanoparticles was not established separately, but it was found that their composition had antifungal effects that were effective. The combination of nanoparticles of chitosan with silver has been shown to have some antifungal effects. The most antifungal effect for the nanoparticles studied is related to copper-silver-chitosan nanocomposite and, which has had a significant effect on the growth of C. albicans in the laboratory environment compared to other nanoparticles.

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Section: Introductionmentioning

confidence: 99%

Antimicrobial effect of chitosan–silver–copper nanocomposite on Candida albicans

et al. 2020

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“…The antibacterial activity of metal nanoparticles is most promising in the eld of drug delivery, where they are considered the most interesting materials in clinical research due to the increasing microbial resistance to metal ions, antibiotics and the resistance development of various strains. 2 Silver nanoparticles (AgNPs) are quite substantial because of their large surface area relative to their volume. Due to their outstanding antibacterial properties, AgNPs have been applied in various different applications, such as antibacterial applications, bre-reinforced composites, food storage, drug delivery, cosmetic products, gas sensors, superconducting materials, cryogenic electronic components, coatings and other environmental applications.…”

Section: Introductionmentioning

confidence: 99%

Green synthesis characterization and antimicrobial activity againstStaphylococcus aureusof silver nanoparticles using extracts of neem, onion and tomato

et al. 2019

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“…One clarification for this finding might be because of antibacterial impact contingent upon some parameters, for example, particle size, morphology, surface functionality, and fabrication, that has resulted from the large of the surface area of ZnO NRs compared with ZnO NPs. Because of the increasing of touching the surface area that is a significant condition for the effects of nanoparticles shapes [33,34], consequently, the functional activity of nanoparticles has been strongly influenced by their size. Based on this, the antimicrobial activity of ZnO on bacteria has been enhanced with a diminution of particle size [35,36].…”

Section: Antimicrobial Activitymentioning

confidence: 99%

Zinc Oxide Nanoparticles and Nanorods as Antimicrobial Agents: Particle Size Influence

Holi¹,

Al-Jubory²

2019

Nano BioMed ENG

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The aim of this study is to find out about the antibacterial activity of a variety of ZnO nanostructures, along with their derivative nanoparticles (ZnO NPs) and nanorods (ZnO NRs) against numerous clinic strains of Gram-negative Escherichia coli (E. coli), Salmonella typhi (S. typhi), Pseudomonas aeruginosa (P. aeruginosa) as well as Gram-positive Streptococcus pneumonia (Strept. pneumonia) bacteria. ZnO NPs and ZnO NRs were efficiently synthesized by using sol-gel and hydrothermal strategies, respectively. Various properties, consisting of the morphology, structure and optical, had been described by using field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD) as well as ultraviolet-visible (UV-Vis) spectroscopy analysis. This check was performed in Mueller-Hinton agar. The impact of different particle sizes and morphologies of ZnO nanomaterials on the growth of bacteria was measured. In the antibacterial assay, each type of ZnO nanostructure showed effective inhibition. The findings showed that ZnO NRs exhibited more efficient antibacterial activity than that of ZnO NPs agents. This was once the case for both Gram-positive and Gramnegative bacteria. Hence, the study indicated that the antibacterial of ZnO NRs against Strept. Pneumonia was similar to those for S. typhi. However, depending on the particle size effect of ZnO nanostructure, it was found that ZnO NPs showed much less antibacterial activity towards S. typhi than ZnO NRs did.

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Antimicrobial studies of metal and metal oxide nanoparticles

Cited by 40 publications

References 152 publications

Antimicrobial effect of chitosan–silver–copper nanocomposite on Candida albicans

Antimicrobial effect of chitosan–silver–copper nanocomposite on Candida albicans

Green synthesis characterization and antimicrobial activity againstStaphylococcus aureusof silver nanoparticles using extracts of neem, onion and tomato

Zinc Oxide Nanoparticles and Nanorods as Antimicrobial Agents: Particle Size Influence

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