Synthesis of silver nanoparticles in a polyvinylpyrrolidone (PVP) paste, and their optical properties in a film and in ethylene glycol

Slistan-Grijalva, A.; Herrera-Urbina, R.; Rivas-Silva, J.F.; Ávalos-Borja, M.; Castillón-Barraza, F.F.; Posada-Amarillas, Álvaro

doi:10.1016/j.materresbull.2007.02.013

Cited by 108 publications

(61 citation statements)

References 23 publications

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“…It is well known that UV-vis absorption spectrophotometry is an important tool for investigating the interfacial phenomena and describe the evolution of particles [34,35]. Fig.…”

Section: Resultsmentioning

confidence: 99%

Convenient synthesis of silver nanowires with adjustable diameters via a solvothermal method

Chen

Qiao

Qiu

et al. 2010

Journal of Colloid and Interface Science

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“…It is well known that UV-vis absorption spectrophotometry is an important tool for investigating the interfacial phenomena and describe the evolution of particles [34,35]. Fig.…”

Section: Resultsmentioning

confidence: 99%

Convenient synthesis of silver nanowires with adjustable diameters via a solvothermal method

Chen

Qiao

Qiu

et al. 2010

Journal of Colloid and Interface Science

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“…The empirical assignments of the most evident absorption bands for the pure PVP thin film investigated in this study are consistent with those previously reported in literature. 12,15,26 The relatively broad u (OH) stretching band centered at about 3450 cm À1 indicates the presence of the stretching vibration associated with free and numerous hydroxyl groups (ÀOH), in addition to hydrogen-bonded (HOH) due to residual water 6,11 because the samples were not vacuum dried. The observed characteristic band of PVP at 1675 cm À1 is due to the carbonyl (C¼O) stretching, which is very sensitive to hydrogen bond formation with water molecules.…”

Section: Ir Spectramentioning

confidence: 99%

“…It has been attracting more and more attention because of its widespread application in the synthesis of nanostructures. [11][12][13][14][15][16] It exhibits unusual colloidal and complexing properties, and has been extensively used in medicine and pharmaceuticals as a protective colloid, viscosity-enhancing agent, solubility promoter, granulating/tableting agent and film-forming or coating material. Recently, it has also been used for encapsulating DNA and protecting it from intracellular degradation.…”

Section: Introductionmentioning

confidence: 99%

Magnetic and optical studies on polyvinylpyrrolidone thin films doped with rare earth metal salts

Basha

2010

Polym J

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A casting technique was used to prepare new nanocomposite thin films of pure and GdCl 3 -or HoCl 3 -doped polyvinylpyrrolidone (PVP). Transmission electron microscopy (TEM) was used to study the particle size and dispersibility in the investigated nanocomposites. Magnetic measurements, using a vibrating sample magnetometer (VSM), were carried out at room temperature and applied magnetic fields up to 10 kO e . The appearance of hysteresis loops with small values of saturation flux density (B s ), remanent flux density (B r ), squareness ratio (SQR) and coercive field (H c ), along with permeability (l) values relatively higher than 1, may be taken, as a matter of experimentation, to consider the investigated composites as soft magnet materials. In this study, PVP-HoCl 3 films showed slightly better magnetic properties compared with PVP-GdCl 3 films. A comparative analysis of infrared (IR) and ultraviolet-visible spectra of the parent components and their composites indicated the effective role of dopant nature and concentration in morphological and microstructural changes occurring in the PVP matrix. Optical constants, such as the energy gap (E g ) and the Urbach tail (E e ), were determined and discussed in terms of a model based on the electronic transition between localized states in the band structure.

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“…23 Various polymers have been employed for the synthesis of silver nanoparticles-polymer composites. 24 In addition, polymers [eg, chitosan, gelatin, [25][26][27] liposome, 28 poly(lactic acid), 29 polymethylmethacrylate, 30 poly(vinyl alcohol), 31 polyvinylpyrrolidone, 32,33 etc] can be used as reducing or stabilizing agents for the synthesis of silver nanoparticles, without other reducing agents. 34,35 For example, Bankura et al proposed a simple onestep synthesis of silver nanoparticles exhibiting multiple antimicrobial activities with size range of 10-60 nm by reduction of silver nitrate (AgNO 3 ) using aqueous dextran solution as both reducing and capping agent.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and anti-fungal effect of silver nanoparticles–chitosan composite particles

Wang

Yang

et al. 2015

IJN

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Silver nanoparticles have been used in various fields, and several synthesis processes have been developed. The stability and dispersion of the synthesized nanoparticles is vital. The present article describes a novel approach for one-step synthesis of silver nanoparticles–embedded chitosan particles. The proposed approach was applied to simultaneously obtain and stabilize silver nanoparticles in a chitosan polymer matrix in-situ. The diameter of the synthesized chitosan composite particles ranged from 1.7 mm to 2.5 mm, and the embedded silver nanoparticles were measured to be 15±3.3 nm. Further, the analyses of ultraviolet-visible spectroscopy, energy dispersive spectroscopy, and X-ray diffraction were employed to characterize the prepared composites. The results show that the silver nanoparticles were distributed over the surface and interior of the chitosan spheres. The fabricated spheres had macroporous property, and could be used for many applications such as fungicidal agents in the future.

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Synthesis of silver nanoparticles in a polyvinylpyrrolidone (PVP) paste, and their optical properties in a film and in ethylene glycol

Cited by 108 publications

References 23 publications

Convenient synthesis of silver nanowires with adjustable diameters via a solvothermal method

Convenient synthesis of silver nanowires with adjustable diameters via a solvothermal method

Magnetic and optical studies on polyvinylpyrrolidone thin films doped with rare earth metal salts

Synthesis and anti-fungal effect of silver nanoparticles–chitosan composite particles

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Synthesis of silver nanoparticles in a polyvinylpyrrolidone (PVP) paste, and their optical properties in a film and in ethylene glycol

Cited by 108 publications

References 23 publications

Convenient synthesis of silver nanowires with adjustable diameters via a solvothermal method

Convenient synthesis of silver nanowires with adjustable diameters via a solvothermal method

Magnetic and optical studies on polyvinylpyrrolidone thin films doped with rare earth metal salts

Synthesis and anti-fungal effect of silver nanoparticles&ndash;chitosan composite particles

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Synthesis and anti-fungal effect of silver nanoparticles–chitosan composite particles