scholarly journals Microstructural Characterization of Silver Nanoparticles for Bioimaging Applications

2012 ◽  
Vol 18 (S5) ◽  
pp. 53-54
Author(s):  
A. P. Zaderenko ◽  
C. Caro ◽  
M. de la Mata ◽  
J. A. Sánchez ◽  
M. J. Sayagués
Keyword(s):  
Silver Nanoparticles ◽  
Electromagnetic Fields ◽  
Rayleigh Scattering ◽  
Microstructural Characterization ◽  
Interparticle Spacing ◽  
Extinction Coefficients ◽  
Surface Enhanced ◽  
Molar Extinction Coefficients

Silver nanoparticles are emerging as a powerful tool in bioimaging applications owing to their unique plasmonic properties i.e., extremely high molar extinction coefficients, resonant Rayleigh scattering and enhanced local electromagnetic fields. Through the optimization of these properties, by controlling composition, size, shape, and interparticle spacing of nanoparticles and their assemblies, highly enhanced local electromagnetic fields in the vicinity of nanoparticles are achievable giving rise to IR, Raman and fluorescence surface enhanced spectroscopies (SEIRS, SERS and MEF, respectively).

Synthesis and characterization of meso-to-meso directly linked porphyrin-diazaporphyrin triads

2018 ◽  
Vol 22 (09n10) ◽  
pp. 814-820
Author(s):  
Yingying Jia ◽  
Ling Xu ◽  
Bangshao Yin ◽  
Mingbo Zhou ◽  
Jianxin Song
Keyword(s):  
Nickel Complex ◽  
High Resolution Mass Spectrometry ◽  
Dihedral Angles ◽  
X Ray Diffraction ◽  
Extinction Coefficients ◽  
X Ray ◽  
H Nmr ◽  
First Time ◽  
Molar Extinction Coefficients

Beginning with 5,10,15-triarylporphyrin-nickel complex, five meso-to-meso directly linked porphyrin-diazaporphyrin triads were successfully prepared for the first time through a series of reactions including formylation via Vilsmeier–Haack reaction, condensation with pyrrole, bromination with [Formula: see text]-Bromosuccinimide (NBS), oxidation with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ), metal-templated cyclization of dibromodipyrrin-metal complexes with NaN[Formula: see text] and demetalization. All these triads were comprehensively characterized by [Formula: see text]H NMR, high-resolution mass spectrometry and UV-vis absorption. In addition, the structure of compound 6Ni was unambiguously determined by X-ray diffraction analysis, which showed that the two dihedral angles are both 86.65 (4)[Formula: see text] between each mean plane of porphyrin and that of central diazaporphyrin The UV-vis absorption spectra disclosed that the longest wavelengths of Soret bands and Q bands for these triads were observed at 429 and 642 nm, respectively. In contrast to diazaporphyrin-porphyrin dyads, diazaporphyrin dimers and diazaporphyrin monomers reported previously the molar extinction coefficients, particularly for triad 8Ni are much higher.

Facile synthesis of a highly SERS active nanosilver sol using microwaves and its application in the detection of E. coli using Victoria blue B as a molecular probe

2016 ◽  
Vol 8 (24) ◽  
pp. 4881-4887 ◽  
Author(s):  
Yaohui Wang ◽  
Xinghui Zhang ◽  
Guiqing Wen ◽  
Aihui Liang ◽  
Zhiliang Jiang
Keyword(s):  
Silver Nanoparticles ◽  
Raman Scattering ◽  
Rayleigh Scattering ◽  
Molecular Probe ◽  
Resonance Rayleigh Scattering ◽  
Facile Synthesis ◽  
E Coli ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

A green microwave procedure was developed to synthesize highly surface-enhanced Raman scattering (SERS) active silver nanoparticles (AgNPs) with a resonance Rayleigh scattering (RRS) peak at 450 nm, and a new SERS enhancement mechanism was proposed.

Mechanical and Microstructural Characterization of Aluminum Reinforced with Carbon-Coated Silver Nanoparticles

ChemInform ◽  
2007 ◽  
Vol 38 (30) ◽  
Author(s):  
R. Martinez-Sanchez ◽  
J. Reyes-Gasga ◽  
R. Caudillo ◽  
D. I. Garcia-Gutierrez ◽  
A. Marquez-Lucero ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Microstructural Characterization ◽  
Carbon Coated

Droplet based microfluidics: spectroscopic characterization of levofloxacin and its SERS detection

2015 ◽  
Vol 17 (33) ◽  
pp. 21236-21242 ◽  
Author(s):  
I. J. Hidi ◽  
M. Jahn ◽  
K. Weber ◽  
D. Cialla-May ◽  
J. Popp
Keyword(s):  
Aqueous Solution ◽  
Raman Spectroscopy ◽  
Silver Nanoparticles ◽  
Spectroscopic Characterization ◽  
Surface Enhanced Raman Spectroscopy ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Sers Detection

The determination of the absorption behavior of levofloxacin (levaquin) on the surface of silver nanoparticles and its determination in aqueous solution by droplet based microfluidics combined with surface enhanced Raman spectroscopy.

Microstructural Characterization of Aluminum - Silver Nanoparticles Composites Produced by Mechanical Milling

2008 ◽  
Vol 14 (S2) ◽  
pp. 368-369 ◽  
Author(s):  
DC Mendoza-Ruiz ◽  
I Estrada-Guel ◽  
W Antúnez-Flores ◽  
R Martinez-Sánchez
Keyword(s):  
Silver Nanoparticles ◽  
New Mexico ◽  
Mechanical Milling ◽  
Microstructural Characterization

Extended abstract of a paper presented at Microscopy and Microanalysis 2008 in Albuquerque, New Mexico, USA, August 3 – August 7, 2008

scholarly journals Microstructural Characterization of Silver Nanoparticles for Biomedical Applications

2012 ◽  
Vol 18 (S5) ◽  
pp. 55-56
Author(s):  
A. P. Zaderenko ◽  
P. M. Castillo ◽  
M. de la Mata ◽  
M .J. Sayagués ◽  
J. A. Sánchez
Keyword(s):  
Silver Nanoparticles ◽  
Optical Properties ◽  
Side Effects ◽  
Biomedical Applications ◽  
Microstructural Characterization ◽  
Therapeutic Agents ◽  
Chemotherapeutic Agents ◽  
Tunable Optical Properties

There is a growing interest in nanoparticles as carriers of chemotherapeutic agents in order to improve their administration and minimize their side effects. Despite the fact that silver nanoparticles can be conjugated to therapeutic agents, offering additionally advantages due their unique and tunable optical properties, few examples have been described yet.

Mechanical and microstructural characterization of aluminum reinforced with carbon-coated silver nanoparticles

2007 ◽  
Vol 438 (1-2) ◽  
pp. 195-201 ◽  
Author(s):  
R. Martínez-Sánchez ◽  
J. Reyes-Gasga ◽  
R. Caudillo ◽  
D.I. García-Gutierrez ◽  
A. Márquez-Lucero ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Microstructural Characterization ◽  
Carbon Coated
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