Monodispersed silver nanoparticles

Jiang LP, Wang AN, Zhao Y et al (2004) A novel route for the preparation of monodisperse silver nanoparticles via a pulsed sonoelectrochemical technique. Inorg Chem Commun 7 506-509... 

Taleb, A., Petit, C., and Pileni, M.P. 1997. Synthesis of highly monodisperse silver nanoparticles from AOT reverse micelles A way to 2D and 3D self-organization. Chemistry of Materials, 9 950-9. 

Fig. 1 presents the UV-Vis absorption spectrum and TEM image of freshly formed 23 nm silver nanoparticles. The absorption peak appeared near 400 nm corresponds to the characteristic wavelength of silver absorbance. TEM data, the narrow width of the absorption peak and the dark yellow colour of final solution indicate the monodisperse silver nanoparticles. 

In the first set of experiments, we will test the barrier effectiveness of fabrics to aerosols (singlets) of monodisperse silver nanoparticles or titanium dioxide nanoparticles - each <50 nm. Although this first set of e eriments may not simulate the research or occupational environment, being more extreme than the normal laboratory atmosphere, wherein nanoparticles tend to aggregate into larger clusters, it will provide important information on the effectiveness of these fabrics or filters to the "worst case scenario" - i.e., aerosols of singlet nanoparticles. 

Li L, Sun J, Li X, Zhang Y, Wang Z, Wang C, Dai J (2012) Controllable S3Tithesis of monodispersed silver nanoparticles as standards for quantitative assessment of their cytotoxicity. Biomaterials 33 1714-1721... 

The precipitation process yields highly concentrated and stable dispersions of monodispersed silver nanoparticles in a simple manner, by reduction of concentrated aqueous solutions of silver nitrate with ascorbic acid in aqueous medium [313]. Ascorbic acid has ability to reduce Ag salts and so to precipitate metallic silver in acidic solution according to... 

Porel, S., Singh, S., Harsha, S. S., Rao, D. N., and Radhakrishnan, T. P. (2005). Nanoparticle-embedded polymer In situ S5mthesis, free-standing films with highly monodisperse silver nanoparticles and optical limiting. Chem. Mater. 17, 9-12. 

Lu LH, Wang HS, Zhou YH, Xi SQ, Zhang HJ, Jiawen HBM, Zhao B (2002) Seed-mediated growth of large, monodisperse core-shell gold-silver nanoparticles with Ag-like optical properties. Chem Commun, pp 144-145... 

H. Hiramatsu, F. Osterloh A Simple Large-Scale Synthesis of Nearly Monodisperse Gold and Silver Nanoparticles with Adjustable Sizes and With Exchangeable Surfactants, Chem. MaterC 2004, v. 16, Ff 13,2509-2511. 

On a basis of the -analysis results, an average size of the silver crystallites was calculated it consists of 9.3 nm respectively the diameter of the spherical particle for monodisperse system isD = 4/3 and = 12.4 nm. Calculated accordingly to the location of the surface Plasmon resonance adsorption maximum of the sol silver nanoparticles (Fig. 4, b) value of average diameter of silver nanoparticles obtained under such conditions consists of 12 nm. 

Furthermore, this smectic nanoporous network could be used as reaction medium, for instance for the formation of silver nanoparticles (NPs) [78]. The pores were first filled with silver ions and subsequently the ions were reduced to form Ag nanoparticles. The NPs are monodisperse (Fig. 2.20) [78], and interestingly, the size... 

Vinh TH, Tran LD, Ba CT, Vu HD, Nguyen TN, Pham DG, Nguyen PX. Synthesis, characterization, antibacterial and antiprohferative activities of monodisperse chitosan-based silver nanoparticles. Colloids Surf APhysicochem Eng Asp. 2010 360(l-3) 32 0. 

Pugazhenthiran N, Anandan S, Kathiravan G, Prakash NKU, Crawford S, Ashokkumar M (2009) Microbial synthesis of silver nanoparticles by Bacillus sp. J Nanopart Res 11 1811-1815 Salvador MR, Ando RA, Oiler do Nascimento CA, Correa B (2014) Intracellular biosynthesis and removal of copper nanoparticles by dead biomass of yeast isolated from the wastewater of a mine in the Brazilian Amazonia. PLoS One 9 e87968 Sathiyadevi G, Loganathan B, Karthikeyan B (2014) Solvent-mediated eco-friendly synthesis and characterization of monodispersed bimetallic Ag/Pd nanocomposites for sensing and Raman scattering applications. J Nanosci 762453... 

Figure 3.11. Electrodeposition of (a) silver nanoparticles and (b) silver nanowires. The co-evolution of hydrogen gas during electrodeposition is thought to assist in monodisperse nanocluster growth by interrupting interparticle coupling via convection effects at the electrode surface and surface mobilization of growing nanoclusters. Reproduced with permission from J. Phys. Chem. B. 2002, 106, 3339. Copyright 2002 American Chemical Society.

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