scholarly journals Visualization of Au Nanoparticles Buried in a Polymer Matrix by Scanning Thermal Noise Microscopy

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Atsushi Yao ◽  
Kei Kobayashi ◽  
Shunta Nosaka ◽  
Kuniko Kimura ◽  
Hirofumi Yamada
Keyword(s):  
Polymer Matrix ◽  
Thermal Noise ◽  
Au Nanoparticles

Photocatalytic properties of hybrid materials based on a multicharged polymer matrix with encored TiO2 and noble metal (Pt, Pd or Au) nanoparticles

2020 ◽  
Vol 44 (17) ◽  
pp. 7169-7174
Author(s):  
Elza D. Sultanova ◽  
Irek R. Nizameev ◽  
Kirill V. Kholin ◽  
Marsil K. Kadirov ◽  
Alexander S. Ovsyannikov ◽  
...  
Keyword(s):  
Noble Metal ◽  
Hybrid Materials ◽  
Polymer Matrix ◽  
Noble Metals ◽  
Au Nanoparticles ◽  
Polymeric Matrix ◽  
Photocatalytic Properties ◽  
Photocatalytic Application

In this study, we report a synthesis of new nanocomposites, wherein TiO2 is introduced into multicharged polymeric matrix and covered with noble metals (Pt, Pd or Au) for the photocatalytic application.

L- Cysteine Based Polymer Matrix Decorated with Au-Nanoparticles: As a Sensing Platform for Simultaneous Determination of Hydroquinone and Catechol

2017 ◽  
Vol 164 (6) ◽  
pp. B193-B199 ◽  
Author(s):  
Ghasem Karim-Nezhad ◽  
Mohammad Hossein Moghaddam ◽  
Zeynab Khorablou ◽  
Parisa S. Dorraji
Keyword(s):  
Simultaneous Determination ◽  
Polymer Matrix ◽  
Au Nanoparticles ◽  
Sensing Platform

scholarly journals Influence of Gold Nanoparticles on the Luminescence of an Acrylated Isocyanonaphthalene Derivative

2019 ◽  
Vol 2019 ◽  
pp. 1-5
Author(s):  
J. Burunkova ◽  
S. Keki ◽  
A. Veniaminov ◽  
M. Nagy ◽  
L. Daroczi ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Polymer Matrix ◽  
Au Nanoparticles ◽  
Fluorescence Enhancement ◽  
Polymer Nanocomposite ◽  
Monomer Mixture ◽  
Luminescent Material ◽  
Fluorescent Intensity ◽  
Functionalized Gold Nanoparticles ◽  
Methacrylate Monomer

Dodecanethiol-functionalized gold nanoparticles were incorporated into the polymer matrix of diurethane-methacrylate monomer mixture in the presence of SiO2 nanoparticles (8 wt %) and a new reactive organic luminescent material ACAIN (1-N-(2-acryloyloxy-3-chloroprop-1-yl)-amino-5-isocyanonaphthalene, 1 wt %). This way, a new, probably multifunctional, polymer nanocomposite was obtained. It was shown that the addition of SiO2 nanoparticles enhances the fluorescent intensity of ACAIN by 1.5 times in the 450-550 nm spectral range. Furthermore, an additional fluorescence enhancement up to 4.5 times was observed when Au nanoparticles were added to this nanocomposite in a rather low (0.12 wt %) concentration.

Ultra-spatially resolved synchrotron powered FT-IR microspectroscopy of individual cells of biological material

1995 ◽  
Vol 53 ◽  
pp. 884-885
Author(s):  
David L. Wetzel ◽  
John A. Reffner ◽  
Gwyn P. Williams
Keyword(s):  
Thermal Noise ◽  
Spot Size ◽  
Acquisition Time ◽  
Thermal Source ◽  
Signal To Noise ◽  
Spatially Resolved ◽  
Good Spatial Resolution ◽  
Small Spot ◽  
Ft Ir ◽  
Ir Microspectroscopy

Synchrotron radiation is 100 to 1000 times brighter than a thermal source such as a globar. It is not accompanied with thermal noise and it is highly directional and nondivergent. For these reasons, it is well suited for ultra-spatially resolved FT-IR microspectroscopy. In efforts to attain good spatial resolution in FT-IR microspectroscopy with a thermal source, a considerable fraction of the infrared beam focused onto the specimen is lost when projected remote apertures are used to achieve a small spot size. This is the case because of divergence in the beam from that source. Also the brightness is limited and it is necessary to compromise on the signal-to-noise or to expect a long acquisition time from coadding many scans. A synchrotron powered FT-IR Microspectrometer does not suffer from this effect. Since most of the unaperatured beam’s energy makes it through even a 12 × 12 μm aperture, that is a starting place for aperture dimension reduction.

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