SERS and DFT investigation on push‐pull molecules: 4‐Dimethylamino‐ 4’‐nitrostilbene adsorbed on silver colloidal nanoparticles

2018 ◽  
Vol 3 (30) ◽  
pp. 8698-8702
Author(s):  
Maurizio Muniz‐Miranda ◽  
Francesco Muniz‐Miranda ◽  
Alfonso Pedone
Keyword(s):  
Colloidal Nanoparticles ◽  
Silver Colloidal Nanoparticles

Laser-Induced Size and Shape Transformation of Silver Colloidal Nanoparticles

2005 ◽  
Vol 106 ◽  
pp. 27-30 ◽  
Author(s):  
Nikolai Tarasenko ◽  
Andrei Butsen ◽  
Gvidona Shevchenko ◽  
Ilona Yakutik
Keyword(s):  
Silver Nanoparticles ◽  
Laser Radiation ◽  
Pulsed Laser ◽  
Colloidal Nanoparticles ◽  
Shape Transformation ◽  
Experimental Conditions ◽  
Pulsed Laser Radiation ◽  
Agno3 Solution ◽  
Silver Colloidal Nanoparticles ◽  
532 Nm

In this paper studies of the changes of the morphology of silver colloidal nanoparticles under laser irradiation at different fluences and wavelengths have been presented. Silver nanoparticles of size 10-30 nm were prepared in a gelatin stabilized AgNO3 solution under reduction with K-Na-tartrate. They were then exposed to pulsed laser radiation at 532 nm, 400 nm and 266 nm. In addition to the fragmented particles, relatively larger-size (1400-1500 nm) rightangled structures were found to be formed in the solution. The experimental conditions favouring laser-induced transformation of the morphology of nanoparticles have been determined.

Gold/Palladium and Silver/Palladium Colloids as Novel Metallic Substrates for Surface-Enhanced Raman Scattering

2005 ◽  
Vol 59 (2) ◽  
pp. 194-199 ◽  
Author(s):  
Barbara Pergolese ◽  
Adriano Bigotto ◽  
Maurizio Muniz-Miranda ◽  
Giuseppe Sbrana
Keyword(s):  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Colloidal Nanoparticles ◽  
Visible Absorption ◽  
Transmission Electron ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Silver Palladium ◽  
Silver Colloidal Nanoparticles

New surface-enhanced Raman scattering (SERS) substrates, composed of gold or silver colloidal nanoparticles doped with palladium, were prepared. These novel colloids are stable and maintain a satisfactory SERS efficiency, even after long aging. The interest in doping the coinage metal nanoparticles with palladium is due to the well-known catalytic activity of this metal. Transmission electron microscopy (TEM) and ultraviolet–visible absorption spectroscopy were used to characterize the shape and size of the metal particles. It was found that these bimetallic colloidal nanoparticles have a core–shell structure, with gold or silver coated with palladium clusters.

Silver colloidal nanoparticles: antifungal effect against adhered cells and biofilms ofCandida albicansandCandida glabrata

Biofouling ◽  
2011 ◽  
Vol 27 (7) ◽  
pp. 711-719 ◽  
Author(s):  
D. R. Monteiro ◽  
L. F. Gorup ◽  
S. Silva ◽  
M. Negri ◽  
E. R. de Camargo ◽  
...  
Keyword(s):  
Colloidal Nanoparticles ◽  
Antifungal Effect ◽  
Silver Colloidal Nanoparticles
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