scholarly journals In SituSynthesis and Deposition of Gold Nanoparticles with Different Morphologies on Glass and ITO Substrate by Ultrasonic Spray Pyrolysis

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
María de la Garza ◽  
Israel López ◽  
Idalia Gómez
Keyword(s):  
Gold Nanoparticles ◽  
Spray Pyrolysis ◽  
Indium Tin Oxide ◽  
Average Particle Size ◽  
Ultrasonic Spray Pyrolysis ◽  
Average Particle ◽  
Particle Sizes ◽  
Ultrasonic Spray ◽  
Ito Film

Gold nanoparticles were synthesized and depositedin situby ultrasonic spray pyrolysis on glass and indium tin oxide (ITO) substrates. This technique led to the formation of gold nanoparticles with different morphologies without the use of any capping agent. The gold nanoparticles deposited on glass substrate were obtained as nanospheres with an average particle size of 30 nm with some agglomerates; however, the nanoparticles deposited on ITO substrate were obtained with different morphologies, such as triangular nanoprisms, nanorods, nanocubes, and nanorhombus, with particle sizes between 40 and 100 nm. The ITO substrate influenced the morphology of the gold nanoparticles obtained due to changes in the deposition temperature, which also change the crystalline structure of the ITO film on the substrate.

Preparation and Characterization of Spherical Fine Nickel Particles by Ultrasonic Spray Pyrolysis

2013 ◽  
Vol 582 ◽  
pp. 11-14 ◽  
Author(s):  
Takayuki Kodera ◽  
Takuya Oomura ◽  
Qiong Wu ◽  
Ryouma Minami ◽  
Takashi Ogihara
Keyword(s):  
Spray Pyrolysis ◽  
Fine Particles ◽  
Average Particle Size ◽  
Ultrasonic Spray Pyrolysis ◽  
Crystal Phase ◽  
Average Particle ◽  
Starting Solution ◽  
Ultrasonic Spray ◽  
Nickel Particles

Spherical fine Ni particles were prepared by ultrasonic spray pyrolysis, and the effects of starting materials, carrier gas, and pyrolysis temperature on the crystal phase of the fine particles were investigated. When the mist of starting solution was pyrolyzed at 850 °C in a N2 atmosphere, the crystal phase of fine particles obtained from Ni (CH3COO)2·4H2O was in good agreement with that of Ni. Furthermore, the other phases were not observed. The average particle size of the spherical Ni fine particles was 0.45 μm.

Cytotoxicity of Gold Nanoparticles Prepared by Ultrasonic Spray Pyrolysis

2010 ◽  
Vol 26 (5) ◽  
pp. 595-612 ◽  
Author(s):  
R. Rudolf ◽  
B. Friedrich ◽  
S. Stopić ◽  
I. Anžel ◽  
S. Tomić ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Spray Pyrolysis ◽  
Ultrasonic Spray Pyrolysis ◽  
Ultrasonic Spray

Synthesis of indium tin oxide nano-polycrystalline powders by ultrasonic spray pyrolysis

Rare Metals ◽  
2016 ◽  
Author(s):  
Li-Hua Zhang ◽  
Sheng-Hui Guo ◽  
Chao-Jin Zhou ◽  
Jin-Hui Peng ◽  
Shao-Hua Ju ◽  
...  
Keyword(s):  
Spray Pyrolysis ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Ultrasonic Spray Pyrolysis ◽  
Ultrasonic Spray

Formation mechanisms for gold nanoparticles in a redesigned Ultrasonic Spray Pyrolysis

2017 ◽  
Vol 28 (3) ◽  
pp. 876-883 ◽  
Author(s):  
Peter Majerič ◽  
Darja Jenko ◽  
Bernd Friedrich ◽  
Rebeka Rudolf
Keyword(s):  
Gold Nanoparticles ◽  
Spray Pyrolysis ◽  
Ultrasonic Spray Pyrolysis ◽  
Formation Mechanisms ◽  
Ultrasonic Spray

scholarly journals The Effect of Stabilisation Agents on the Immunomodulatory Properties of Gold Nanoparticles Obtained by Ultrasonic Spray Pyrolysis

Materials ◽  
2019 ◽  
Vol 12 (24) ◽  
pp. 4121 ◽  
Author(s):  
Marina Bekić ◽  
Sergej Tomić ◽  
Rebeka Rudolf ◽  
Marijana Milanović ◽  
Dragana Vučević ◽  
...  
Keyword(s):  
Immune Response ◽  
Gold Nanoparticles ◽  
Spray Pyrolysis ◽  
Inflammatory Cytokines ◽  
Mononuclear Cells ◽  
Biological Fluids ◽  
Ultrasonic Spray Pyrolysis ◽  
Drug Carriers ◽  
Ultrasonic Spray ◽  
Pro Inflammatory Cytokines

Gold nanoparticles (GNPs) have been investigated extensively as drug carriers in tumour immunotherapy in combination with photothermal therapy. For this purpose, GNPs should be stabilised in biological fluids. The goal of this study was to examine how stabilisation agents influence cytotoxicity and immune response in vitro. Spherical GNPs, 20 nm in size, were prepared by ultrasonic spray pyrolysis (USP). Three types of stabilising agents were used: sodium citrate (SC), polyvinyl-pyrrolidone (PVP), and poly-ethylene glycol (PEG). Pristine, non-stabilised GNPs were used as a control. The culture models were mouse L929 cells, B16F10 melanoma cells and human peripheral blood mononuclear cells (PBMNCs), obtained from healthy donors. Control SC- and PEG-GNPs were non-cytotoxic at concentrations (range 1–100 µg/mL), in contrast to PVP-GNPs, which were cytotoxic at higher concentrations. Control GNPs inhibited the production of IFN-ϒ slightly, and augmented the production of IL-10 by PHA-stimulated PBMNC cultures. PEG-GNPs inhibited the production of pro-inflammatory cytokines (IL-1, IL-6, IL-8, TNF-α) and Th1-related cytokines (IFN-ϒ and IL-12p70), and increased the production of Th2 cytokines (IL-4 and IL-5). SC-PEG inhibited the production of IL-8 and IL-17A. In contrast, PVP-GNPs stimulated the production of pro-inflammatory cytokines, Th1 cytokines, and IL-17A, but also IL-10. When uptake of GNPs by monocytes/macrophages in PBMNC cultures was analysed, the ingestion of PEG- GNPs was significantly lower compared to SC- and PVP-GNPs. In conclusion, stabilisation agents modulate biocompatibility and immune response significantly, so their adequate choice for preparation of GNPs is an important factor when considering the use of GNPs for application in vivo.

Application of Gold(III) Acetate as a New Precursor for the Synthesis of Gold Nanoparticles in PEG Through Ultrasonic Spray Pyrolysis

2017 ◽  
Vol 28 (3) ◽  
pp. 1647-1665 ◽  
Author(s):  
Mohammed Shariq ◽  
Peter Majerič ◽  
Bernd Friedrich ◽  
Bojan Budic ◽  
Darja Jenko ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Spray Pyrolysis ◽  
Ultrasonic Spray Pyrolysis ◽  
Ultrasonic Spray

scholarly journals Successful Synthesis of Gold Nanoparticles through Ultrasonic Spray Pyrolysis from a Gold(III) Nitrate Precursor and Their Interaction with a High Electron Beam

ChemistryOpen ◽  
2018 ◽  
Vol 7 (7) ◽  
pp. 533-542 ◽  
Author(s):  
Mohammed Shariq ◽  
Bernd Friedrich ◽  
Bojan Budic ◽  
Nejc Hodnik ◽  
Francisco Ruiz-Zepeda ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Electron Beam ◽  
Spray Pyrolysis ◽  
Ultrasonic Spray Pyrolysis ◽  
High Electron ◽  
Ultrasonic Spray ◽  
Nitrate Precursor
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