Synthesis of silver nanoparticles in skim natural rubber latex at room temperature

Suwatthanarak, Thanawat; Than-ardna, Bhumin; Danwanichakul, Duangkamol; Danwanichakul, Panu

doi:10.1016/j.matlet.2016.01.026

Cited by 37 publications

(24 citation statements)

References 14 publications

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“…At 60℃, the absorbance peak was shifted to longer wavelength as the concentration increases from 0.1 M to 0.5 M and shifted slightly to the shorter wavelength as the concentration further increased to 1.0 M, implying the particles size can be predicted as S1T6 < S2T6 > S3T6. A narrow bandwidth with high intensity of S2T6 spectrum was clearly observed which indicates the formation of larger NSPs and increase of number nanoparticles (Suwatthanarak et al 2016) which will be further verified with TEM image later. For 80°C reaction temperature, the particles size become larger as the concentration increases from 0.1 M to 1.0 M as can be seen from the peak shifting phenomena.…”

Section: Results and Discussion Mechanism Prediction Of Nsps Formationsupporting

confidence: 64%

“…All the NSPs colloidal exhibits strong absorption within a range of 350-460 nm, which is the characteristic absorbance band of the surface plasmon resonance (SPR) for NSPs (Bhui et al 2009;Lu et al 2011;Sun et al 2004;Suwatthanarak et al 2016). The size of synthesized NSPs was predicted from the spectral based on the shifting of absorption peak and the intensity of the absorbance.…”

Section: Results and Discussion Mechanism Prediction Of Nsps Formationmentioning

confidence: 99%

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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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Section: Results and Discussion Mechanism Prediction Of Nsps Formationsupporting

confidence: 64%

Section: Results and Discussion Mechanism Prediction Of Nsps Formationmentioning

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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show abstract

“…Each reaction is governed by its rate constant. It is further assumed that Ag ° atoms are produced first and then they combine to form silver particles …”

Section: Resultsmentioning

confidence: 99%

Utility of silver‐coated fabrics as electrodes in electrotherapy applications

Ali

Baheti

Militký

et al. 2018

J of Applied Polymer Sci

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The present study deals with the deposition of silver particles onto knitted fabrics for possible applications in electrotherapy. The performance of silver-coated fabrics was evaluated based on number of properties such as electrical conductivity, physiological comfort, antibacterial, and durability. Furthermore, the conductive fabrics were subjected to various repeated extensions and change in electrical resistivity was examined to simulate the performance of electrodes under various movements of human body. With increase in extension till 80%, very small change in volume electrical resistance was observed and after 90% extension, the electrical resistance was found to increase significantly. The volume resistance was found to remain constant for repeated extensions of over 100 cycles and also there was insignificant change in electrical resistivity when constant current was applied over prolonged time. The utility of silver-coated fabrics can be expected as flexible textile electrodes in transcutaneous electrical nerve stimulation electrotherapy applications.

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“…For all treated plants, the EC of the media increased on days 3 and 6 respectively compared to day 0, as shown in Figure 2. This increase in EC may be attributed to the attractive interactions between AgNPs and silver ions, suggesting increased AgNP numbers in the media [35,36]. EC was also observed to reduce under increasing PEG concentrations.…”

Section: Agno3 and Peg Exhibited Increase In T Apollinea Ecmentioning

confidence: 85%

Exogenous Production of Silver Nanoparticles by Tephrosia apollinea Living Plants under Drought Stress and Their Antimicrobial Activities

et al. 2019

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Nanoparticle (NP) synthesis by biological systems is more cost-effective, safe, and environmentally friendly when compared to currently used chemical and physical methods. Although many studies have utilized different plant extracts to synthesize NPs, few studies have incorporated living plants. In this study, silver nanoparticles (AgNPs) were synthesized exogenously by Tephrosia apollinea living plant system under the combined stresses of silver nitrate and different levels of drought stress simulated by Polyethylene glycol (PEG) (0, −0.1, −0.2, and −0.4 MPa for three and six days). Biomass, cell death, and H 2 O 2 content were evaluated to determine the toxicological effect of the treatments on the plant. More severe effects were detected in day 6 plants compared to day 3 plants, and at higher drought levels. UV-visible spectrum, energy dispersive X-ray spectroscopy, X-ray diffraction, scanning electron microscope, and Fourier transform infrared spectroscopy were used to detect and characterize the T. apollinea synthesized NPs. The shapes of the NPs were spherical and cubic with different phytochemicals being the possible capping agents. Broth microdilution was used to determine the antimicrobial activity of the NPs against Escherichia coli and Staphylococcus aureus. In this case, antimicrobial activity increased at higher PEG concentrations. Bactericidal effects were observed against E. coli, while only bacteriostatic effects were detected against S. aureus.

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Synthesis of silver nanoparticles in skim natural rubber latex at room temperature

Cited by 37 publications

References 14 publications

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

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

Utility of silver‐coated fabrics as electrodes in electrotherapy applications

Exogenous Production of Silver Nanoparticles by Tephrosia apollinea Living Plants under Drought Stress and Their Antimicrobial Activities

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