Synthesis and applications of silver nanoparticles

El-Nour, Kholoud M.M. Abou; Eftaiha, Ala’a F.; Al-Warthan, Abdulrhman; Ammar, Reda A.

doi:10.1016/j.arabjc.2010.04.008

Cited by 1,117 publications

(543 citation statements)

References 113 publications

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“…The nanoparticles of noble metals possess unique electronic and optical properties suitable for various modern applications [1,2]. In particular, silver nanoparticles show versatile properties like biocompatibility, electrochemical activities, antimicrobial properties, low toxicity, etc.…”

Section: Introductionmentioning

confidence: 99%

Rapid colorimetric detection of Hg2+ ion by green silver nanoparticles synthesized using Dahlia pinnata leaf extract

Sarkar

Ghosh

2015

Green Processing and Synthesis

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Abstract:In this study, we for the first time reported green synthesis of silver nanoparticles from silver nitrate solution using leaf extract of Dahlia pinnata. Green synthesis was chosen over conventional physical or chemical synthesis procedures due to eco-friendliness, simplicity and low cost. Formation of silver nanoparticles was monitored at regular intervals using UV-Vis spectroscopy. Different phases and the crystal nature of silver nanoparticles were studied by X-ray diffraction (XRD). Transmission electron microscopy (TEM) was performed to realize the shape, size and morphology of the nanoparticles. Fourier transform infrared (FTIR) spectroscopy of the particles revealed the role of organic molecules that reduced and capped the colloidal particles in the medium during interaction. Most importantly, the rapid colorimetric sensing activity of these biosynthesized nanoparticles was explored and the green synthesized Ag nanoparticles instantly detected the presence of hazardous Hg 2+ ions in water successfully.

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Section: Introductionmentioning

confidence: 99%

Rapid colorimetric detection of Hg2+ ion by green silver nanoparticles synthesized using Dahlia pinnata leaf extract

Sarkar

Ghosh

2015

Green Processing and Synthesis

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“…Among all metal nanoparticles, silver nanoparticles (AgNPs) show the highest antibacterial activity. Despite the fact that the toxicity of AgNPs is still not clear, AgNPs have been applied as anti bacterial agents in the health industry, food storage, textile coatings and a number of environmental applications [3].…”

Section: Introductionmentioning

confidence: 99%

Green synthesis of silver nanoparticle using rambutan (Nephelium lappaceum L.) peel extract and its antibacterial activity against Salmonella parathypi A.

2018

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Abstract. Ag nanoparticles (AgNPs) have been synthesized via green method using rambutan (Nephelium lappaceum L.) peel (RP) extract. RP extract was prepared by washing the RP using tap water thoroughly and boiling it in distilled water at 70°C for 60 min. RP extract and AgNO3 were used as the starting materials for the synthesis of AgNPs. RP extract was added to 10 -3 M AgNO3 solution with a ratio by volume of 1:10 (RP : AgNO3), stirred at room temperature. The solution's color changes from reddish to dark brown, indicating the reduction of Ag + in the solution. The synthesized AgNPs were characterized using UV-Visible Spectrophotometer, FTIR Spectrophotometer, and Scanning Electron Microscopy-Energy-dispersive X-ray Spectroscopy (SEM-EDS) instruments. UV-Visible spectra show that the AgNPs have the maximum absorption band at 450 nm which is typical for AgNPs. The FTIR spectra revealed that the protein in RP extract acts as the capping agent for the synthesized AgNPs. The synthesized AgNPs were tested for their antibacterial activity against Salmonella parathypi A. The antibacterial test shows that 50 µL of AgNPs resulted in the inhibition zone of 4 mm against the aforementioned microorganism.

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“…Past researchers reported that strong reducer like borohydride can result in monodispersed small nanoparticles with a faster reduction rate (Ge et al 2014) but difficult to control the generation of larger particles (Abou El-Nour et al 2010). In contrast, weaker reducer such as glucose resulted in a slower reduction rate (Abou El-Nour et al 2010) but displayed better particle uniformity and remarkable antibacterial action (Kheybari et al 2010;Landage et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Influence of Precursor Concentration and Temperature on the Formation of Nanosilver in Chemical Reduction Method

Ahmad¹,

Ang²,

Afifi³

et al. 2018

JSM

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Nanosilver particles (NSPs) were produced by the reduction of silver nitrate using glucose as reducer, poly (vinyl pyrrolidone) as stabilizer and sodium hydroxide as reaction enhancer. Two parameters were investigated which are silver nitrate concentration (0.1 M, 0.5 M and 1.0 M) and reaction temperature (60°C and 80°C). Through spectral analysis using ultraviolet-visible spectrophotometer (UV-vis)

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Synthesis and applications of silver nanoparticles

Cited by 1,117 publications

References 113 publications

Rapid colorimetric detection of Hg2+ ion by green silver nanoparticles synthesized using Dahlia pinnata leaf extract

Rapid colorimetric detection of Hg2+ ion by green silver nanoparticles synthesized using Dahlia pinnata leaf extract

Green synthesis of silver nanoparticle using rambutan (Nephelium lappaceum L.) peel extract and its antibacterial activity against Salmonella parathypi A.

Influence of Precursor Concentration and Temperature on the Formation of Nanosilver in Chemical Reduction Method

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