Silver nanoparticles: New synthesis, characterization and photophysical properties

Balan, Lavinia; Malval, Jean‐Pierre; Schneider, Raphaël; Burget, Dominique

doi:10.1016/j.matchemphys.2007.03.036

Cited by 81 publications

(43 citation statements)

References 43 publications

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“…According to the Mie theory the intensity and the width of the absorbance peak of noble metals depend on diameter of the particle [14]. Considering obtained results we can assume that predictable diameter of Ag nanoparticles in colloidal solution corresponds to theoretical one.…”

Section: Preparation Of Samplesmentioning

confidence: 64%

Evaluation of Optical Properties of Ag, Cu, and Co Nanoparticles Synthesized in Organic Medium

Kaminskienė¹,

Prosyčevas²,

Stonkutė

et al. 2013

Acta Phys. Pol. A

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The surface plasmon resonance evaluation of colloidal metal nanoparticles, synthesized in organic medium, is reported in this work. Metal salts were dissolved in dioxane/AOT solution and reduced by hydrazine hydrate under vigorous stirring. Optical properties of obtained colloidal nanoparticles were investigated by UV VIS spectroscopy. Theoretical predictions of optical properties of metal nanoparticles were made by means of the Mie theory and the Drude free-electron model. Geometrical parameters and distribution of metal nanoparticles in colloidal solutions were characterized by atomic force microscopy. The results show that Ag, Cu, and Co nanoparticles, synthesized in organic medium distinguish plasmonic properties. Surface plasmon resonance bands were obtained in all cases: Ag at 430 nm, Cu at 570 nm, Co at 350 nm (SPR1) and 430 nm (SPR2). Comparing theoretical evaluation of nanoparticles size with atomic force microscopy analysis, we can assume that our calculations are accurate. It was found that dominating nanoparticles diameter in Ag colloidal solution is ≈ 150 nm, in Cu colloidal solution is ≈ 70 80 nm and in Co colloidal solution is ≈ 150 nm. It can be concluded that nanoparticles with enhanced plasmonic properties synthesized in organic medium can be widely used in order to increase e ciency of various optical elements.

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Section: Preparation Of Samplesmentioning

confidence: 64%

Evaluation of Optical Properties of Ag, Cu, and Co Nanoparticles Synthesized in Organic Medium

Kaminskienė¹,

Prosyčevas²,

Stonkutė

et al. 2013

Acta Phys. Pol. A

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show abstract

“…The surface plasmon resonance (SPR) bands appeared in the range between 400 and 450 nm were assigned to silver particles. All the spectra had only one SPR peak without a broad shoulder centered at 550 nm, 22 indicating that there were only monometallic silver particles in the solution. There were two changing tendencies in the locations of SPR bands of silver particles when the molar ratios of Ag ＋ to PAMAM dendrimers were more than 5∶1, that is, when the concentration of PAMAM was fixed, and the concentration of Ag ＋ was increased, the intensity of the absorption band increased, and SPR bands shifted to a longer wavelength.…”

Section: Resultsmentioning

confidence: 99%

“…AgNO 3 and PAMAM dendrimers were dissolved in high-purity water to make desired concentration of 0.01 mol/L for AgNO 3 and 10 -5 mol/L for PAMAM dendrimers, respectively. Then, Ag ＋ solutions were mixed into PAMAM dendrimer solutions by syringe.…”

Section: Methods and Measurementsmentioning

confidence: 99%

Dependence of Property of Silver Nanoparticles within Dendrimer‐template on Molar Ratios of Ag⁺ to PAMAM Dendrimers

Luo

et al. 2010

Chin. J. Chem.

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G5.0-OH PAMAM dendrimers were used to prepare fluorescent silver clusters with weaker ultraviolet irradiation reduction method, in which the molar ratio of Ag ＋ to PAMAM dendrimers was the key factor to determine the geometry and properties of silver nanoparticles. The results showed that because of G5.0-OH PAMAM dendrimers as strong encapsulatores, when the molar ratios of Ag ＋ to PAMAM dendrimers was smaller than 5, the obtained Ag n clusters (n＜5) had line structures and "molecular-like" properties, which were highly fluorescent and quite stable in aqueous solution. Whereas when the molar ratios were between 5 and 8, the obtained Ag n clusters were 2D structures and their fluorescence was weaker. When the molar ratio was larger than 8, the structure of silver nanoparticles was 3D and no fluorescence was observed from the obtained silver nanoparticles.

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“…Stabilizing agents can be surfactants or polymers containing functional groups [16,23]. The concentration of a stabilizing agent also determines the reactivity, solubility, stability, shape, and size of the nanoparticle [24]. The different types of stabilizing agents are illustrated in Figure 5.…”

Section: Stabilizing Agents Used In Silver Nanoparticle Synthesismentioning

confidence: 99%

Characterization of silver nanoparticle-infused tissue adhesive for ophthalmic use

Yee

Selvaduray

Hawkins

2016

Journal of the Mechanical Behavior of Biomedical Materials

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This research examined if the infusion of silver nanoparticles into a 2-octyl cyanoacrylate tissue adhesive alters the antibacterial effectiveness and mechanical properties of the adhesive. Silver nanoparticle size and concentration combinations were varied to determine the effects of these factors. Uniform distribution of the silver nanoparticles was achieved before proceeding to testing. Antibacterial effectiveness of the composite adhesive was determined via the Kirby-Bauer disk diffusion susceptibility test and by CFU counting. Doping the adhesive with silver nanoparticles resulted in an order of magnitude reduction in bacterial growth. The greatest antibacterial effect came from imbuing 10 μg/mL of 4 nm silver nanoparticles into the tissue adhesive. Despite the noticeable reduction of bacterial growth for the doped adhesives, the difference among the varying silver nanoparticle size and concentration combinations was minimal.The breaking strength of the adhesive increased when silver nanoparticles were added. The adhesive strength of the composite adhesive attached to an incised porcine sclera was also greater than the unaltered adhesive. The greatest breaking load and adhesive force was the 10 μg/mL of 10 nm silver nanoparticle-doped adhesive. The

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Silver nanoparticles: New synthesis, characterization and photophysical properties

Cited by 81 publications

References 43 publications

Evaluation of Optical Properties of Ag, Cu, and Co Nanoparticles Synthesized in Organic Medium

Evaluation of Optical Properties of Ag, Cu, and Co Nanoparticles Synthesized in Organic Medium

Dependence of Property of Silver Nanoparticles within Dendrimer‐template on Molar Ratios of Ag⁺ to PAMAM Dendrimers

Characterization of silver nanoparticle-infused tissue adhesive for ophthalmic use

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Silver nanoparticles: New synthesis, characterization and photophysical properties

Cited by 81 publications

References 43 publications

Evaluation of Optical Properties of Ag, Cu, and Co Nanoparticles Synthesized in Organic Medium

Evaluation of Optical Properties of Ag, Cu, and Co Nanoparticles Synthesized in Organic Medium

Dependence of Property of Silver Nanoparticles within Dendrimer‐template on Molar Ratios of Ag+ to PAMAM Dendrimers

Characterization of silver nanoparticle-infused tissue adhesive for ophthalmic use

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Dependence of Property of Silver Nanoparticles within Dendrimer‐template on Molar Ratios of Ag⁺ to PAMAM Dendrimers