Comparative study of antifungal activity of silver and gold nanoparticles synthesized by facile chemical approach

Khatoon, Umme Thahira; Rao, G. Appa; Mohan, M.; Ramanavičienė, Almira

doi:10.1016/j.jece.2018.08.009

Cited by 82 publications

(36 citation statements)

References 42 publications

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“…Research works comparing AuNPs and AgNPs antifungal activity have reported that AgNPs work much better as antimicrobial agents than their gold counterparts, which is in accordance with this study [50] Furthermore, it was reported that AgNPs concentrations below 100 mg/mL result in high toxicity, due to interactions with redox enzymes, besides the destruction of enzymes in human cells [51], which might explain the observed fungistatic effect. Nevertheless, the AgNPs synthesized in this work have a therapeutic potential due to the fact that, despite their fungistatic effect and small size, they preserve cell viability, as it will be discussed later on.…”

Section: Discussionsupporting

confidence: 90%

Antifungal and Cytotoxic Evaluation of Photochemically Synthesized Heparin-Coated Gold and Silver Nanoparticles

et al. 2020

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Heparin-based silver nanoparticles (AgHep-NPs) and gold nanoparticles (AuHep-NPs) were produced by a photochemical method using silver nitrate and chloroauric acid as metal precursors and UV light at 254 nm. UV–Vis spectroscopy graphs showed absorption for AgHep-NPs and AuHep-NPs at 420 nm and 530 nm, respectively. TEM revealed a pseudospherical morphology and a small size, corresponding to 10–25 nm for AgHep-NPs and 1.5–7.5 nm for AuHep-NPs. Their antifungal activity against Candida albicans, Issatchenkia orientalis (Candida krusei), and Candida parapsilosis was assessed by the microdilution method. We show that AgHep-NPs were effective in decreasing fungus density, whereas AuHep-NPs were not. Additionally, the viability of human gingival fibroblasts was preserved by both nanoparticle types at a level above 80%, indicating a slight cytotoxicity. These results are potentially useful for applications of the described NPs mainly in dentistry and, to a lesser extent, in other biomedical areas.

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Section: Discussionsupporting

confidence: 90%

Antifungal and Cytotoxic Evaluation of Photochemically Synthesized Heparin-Coated Gold and Silver Nanoparticles

et al. 2020

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“… 49 , 67 The antifungal action of silver nanoparticles are thought to increase the reactive oxygen species within the fungal cell and increase membrane permeability resulting in cell death. 68 …”

Section: Resultsmentioning

confidence: 99%

Synthesis of Silver Nanoparticles Using Curcumin-Cyclodextrins Loaded into Bacterial Cellulose-Based Hydrogels for Wound Dressing Applications

et al. 2020

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Chronic wounds are often recalcitrant to treatment because of high microbial bioburden and the problem of microbial resistance. Silver is a broad-spectrum natural antimicrobial agent with wide applications extending to proprietary wound dressings. Recently, silver nanoparticles have attracted attention in wound management. In the current study, the green synthesis of nanoparticles was accomplished using a natural reducing agent, curcumin, which is a natural polyphenolic compound that is well-known as a wound-healing agent. The hydrophobicity of curcumin was overcome by its microencapsulation in cyclodextrins. This study demonstrates the production, characterization of silver nanoparticles using aqueous curcumin:hydroxypropyl-β-cyclodextrin complex and loading them into bacterial cellulose hydrogel with moist wound-healing properties. These silver nanoparticle-loaded bacterial cellulose hydrogels were characterized for wound-management applications. In addition to high cytocompatibility, these novel dressings exhibited antimicrobial activity against three common wound-infecting pathogenic microbes Staphylococcus aureus , Pseudomonas aeruginosa , and Candida auris .

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“…Hence, polymeric compounds like polyvinyl pyrrolidone (PVP), polyethylene glycol (PEG), poly(methyl methacrylate) (PMMA), poly(N-isopropylacrylamide) (PNIPA) and poly(methacrylic acid) (PMAA) were used as a capping or stabilizing agents for synthesis of AgNPs. 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).…”

Section: Chemical Methodsmentioning

confidence: 99%

An Assortment of Synthesis Methods of Silver Nanoparticles: A Review

Jayaprakash¹,

Suresh²,

Raja³

et al. 2019

Asian J. Chem.

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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

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Comparative study of antifungal activity of silver and gold nanoparticles synthesized by facile chemical approach

Cited by 82 publications

References 42 publications

Antifungal and Cytotoxic Evaluation of Photochemically Synthesized Heparin-Coated Gold and Silver Nanoparticles

Antifungal and Cytotoxic Evaluation of Photochemically Synthesized Heparin-Coated Gold and Silver Nanoparticles

Synthesis of Silver Nanoparticles Using Curcumin-Cyclodextrins Loaded into Bacterial Cellulose-Based Hydrogels for Wound Dressing Applications

An Assortment of Synthesis Methods of Silver Nanoparticles: A Review

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