scholarly journals Rhodium (III) Oxide or Rhodium Sesquioxide (Rh2O3) and Rhodium (IV) Oxide (RhO2) Effect on the Stop Growth of Cancer Cells, Tissues and Tumors under Synchrotron and Synchrocyclotron Radiations

2021 ◽  
pp. 106-149
Author(s):  
Alireza Heidari ◽  
Margaret Hotz ◽  
Nancy MacDonald ◽  
Victoria Peterson ◽  
Angela Caissutti ◽  
...  

In the current research, Rhodium (III) Oxide or Rhodium Sesquioxide (Rh2O3) and Rhodium (IV) Oxide (RhO2) effect on the stop growth of cancer cells, tissues and tumors under synchrotron and synchrocyclotron radiations. Is investigated. The calculation of thickness and optical constants of Rhodium (III) Oxide or Rhodium Sesquioxide (Rh2O3) and Rhodium (IV) Oxide (RhO2) Rhodium (III) Oxide or Rhodium Sesquioxide (Rh2O3) and Rhodium (IV) Oxide (RhO2) effect on the stop growth of cancer cells, tissues and tumors under synchrotron and synchrocyclotron radiations produced using sol–gel method over glassy medium through a single reflection spectrum is presented. To obtain an appropriate fit for reflection spectrum, the classic Drude–Lorentz model for parametric di–electric function is used. The best fitting parameters are determined to simulate the reflection spectrum using Lovenberg–Marquardt optimization method. The simulated reflectivity from the derived optical constants and thickness are in good agreement with experimental results. Keywords: Rhodium (III) Oxide or Rhodium Sesquioxide (Rh2O3) and Rhodium (IV) Oxide (RhO2); Stop Growth; Cancer Cells; Tissues and Tumors; Synchrotron and Synchrocyclotron Radiations

2021 ◽  
pp. 195-238
Author(s):  
Alireza Heidari ◽  
Margaret Hotz ◽  
Nancy MacDonald ◽  
Victoria Peterson ◽  
Angela Caissutti ◽  
...  

In the current research, catalytic effectiveness of synchrotron and synchrocyclotron radiations on Osmium Dioxide (OsO2) and Osmium Tetroxide (OsO4) nano capsules delivery in DNA/RNA of cancer cells is investigated. The calculation of thickness and optical constants of Osmium Dioxide (OsO2) and Osmium Tetroxide (OsO4) catalytic effectiveness of synchrotron and synchrocyclotron radiations on Osmium Dioxide (OsO2) and Osmium Tetroxide (OsO4) nano capsules delivery in DNA/RNA of cancer cells produced using sol-gel method over glassy medium through a single reflection spectrum is presented. To obtain an appropriate fit for reflection spectrum, the classic Drudge-Lorentz model for parametric di–electric function is used. The best fitting parameters are determined to simulate the reflection spectrum using Levenberg-Marquardt optimization method. The simulated reflectivity from the derived optical constants and thickness are in good agreement with experimental results. Keywords: Catalytic Effectiveness; Synchrotron and Synchrocyclotron Radiations; Osmium Dioxide (OsO2) and Osmium Tetroxide (OsO4) Nano Capsules; Delivery; DNA/RNA; Cancer Cells


2021 ◽  
pp. 150-194
Author(s):  
Alireza Heidari ◽  
Margaret Hotz ◽  
Nancy MacDonald ◽  
Victoria Peterson ◽  
Angela Caissutti ◽  
...  

In the current research, removal role, application and effect of nanocluster Rhenium (IV) Oxide (ReO2), Rhenium Trioxide (ReO3) and Rhenium (VII) Oxide (Re2O7) thin films delivery in DNA/RNA of cancer cells under synchrotron and synchrocyclotron radiations is investigated. The calculation of thickness and optical constants of Rhenium (IV) Oxide (ReO2), Rhenium Trioxide (ReO3) and Rhenium (VII) Oxide (Re2O7) removal role, application and effect of nanocluster Rhenium (IV) Oxide (ReO2), Rhenium Trioxide (ReO3) and Rhenium (VII) Oxide (Re2O7) thin films delivery in DNA/RNA of cancer cells under synchrotron and synchrocyclotron radiations produced using sol-gel method over glassy medium through a single reflection spectrum is presented. To obtain an appropriate fit for reflection spectrum, the classic Dude-Lorentz model for parametric di-electric function is used. The best fitting parameters are determined to simulate the reflection spectrum using Levenberg-Marquardt optimization method. The simulated reflectivity from the derived optical constants and thickness are in good agreement with experimental results. Keywords: Removal; Nanocluster Rhenium (IV) Oxide (ReO2); Rhenium Trioxide (ReO3) and Rhenium (VII) Oxide (Re2O7); Thin Films, Delivery; DNA/RNA; Cancer Cells; Synchrotron and Synchrocyclotron Radiations


2021 ◽  
pp. 239-282
Author(s):  
Margaret Hotz ◽  
Nancy MacDonald ◽  
Victoria Peterson ◽  
Angela Caissutti ◽  
Elizabeth Besana ◽  
...  

In the current research, advanced studies on the effect of transition metal doped Iridium (IV) Oxide (IrO2) nano thin films in cancer cells, tissues and tumors under synchrotron and synchrocyclotron radiations is investigated. The calculation of thickness and optical constants of Iridium (IV) Oxide (IrO2) advanced studies on the effect of transition metal doped Iridium (IV) Oxide (IrO2) nano thin films in cancer cells, tissues and tumors under synchrotron and synchrocyclotron radiations produced using sol-gel method over glassy medium through a single reflection spectrum is presented. To obtain an appropriate fit for reflection spectrum, the classic Drude–Lorentz model for parametric di–electric function is used. The best fitting parameters are determined to simulate the reflection spectrum using Levenberg-Marquardt optimization method. The simulated reflectivity from the derived optical constants and thickness are in good agreement with experimental results. Keywords: Transition Metal; Doped; Iridium (IV) Oxide (IrO2); Nano Thin Films; Cancer Cells; Tissues and Tumors; Synchrotron and Synchrocyclotron Radiations


2021 ◽  
pp. 31-105
Author(s):  
Alireza Heidari ◽  
Margaret Hotz ◽  
Nancy MacDonald ◽  
Victoria Peterson ◽  
Angela Caissutti ◽  
...  

In the current research, annealing effects on the interband transition and optical constants of Ruthenium (IV) Oxide (RuO?) and Ruthenium (VIII) Oxide (RuO4) nano thin films in cancer cells, tissues and tumors under synchrotron and synchrocyclotron radiations is investigated. The calculation of thickness and optical constants of Ruthenium (IV) Oxide (RuO2) and Ruthenium (VIII) Oxide (RuO4) annealing effects on the interband transition and optical constants of Ruthenium (IV) Oxide (RuO2) and Ruthenium (VIII) Oxide (RuO4) nano thin films in cancer cells, tissues and tumors under synchrotron and synchrocyclotron radiations produced using sol-gel method over glassy medium through a single reflection spectrum is presented. To obtain an appropriate fit for reflection spectrum, the classic Drude-Lorentz model for parametric di-electric function is used. The best fitting parameters are determined to simulate the reflection spectrum using Lovenberg-Marquardt optimization method. The simulated reflectivity from the derived optical constants and thickness are in good agreement with experimental results. Keywords: Annealing, Interband Transition; Optical Constants; Ruthenium (IV) Oxide (RuO2) and Ruthenium (VIII) Oxide (RuO4); Nano Thin Films; Cancer Cells; Tissues and Tumors; Synchrotron and Synchrocyclotron Radiations


2021 ◽  
pp. 16-60
Author(s):  
Alireza Heidari ◽  
Margaret Hotz ◽  
Nancy MacDonald ◽  
Victoria Peterson ◽  
Angela Caissutti ◽  
...  

In the current research, the effect of solution molarity on the structural, morphological, optical and electrical properties of nanostructured Cadmium Oxide (CdO) nano thin films as anti-cancer nano drug in cancer cells, tissues and tumors under synchrotron and synchrocyclotron radiations is investigated. The calculation of thickness and optical constants of Cadmium Oxide (CdO) the effect of solution molarity on the structural, morphological, optical and electrical properties of nanostructured Cadmium Oxide (CdO) nano thin films as anti-cancer nano drug in cancer cells, tissues and tumors under synchrotron and synchrocyclotron radiations produced using sol-gel method over glassy medium through a single reflection spectrum is presented. To obtain an appropriate fit for reflection spectrum, the classic Drude-Lorentz model for parametric di-electric function is used. The best fitting parameters are determined to simulate the reflection spectrum using Lovenberg-Marquardt optimization method. The simulated reflectivity from the derived optical constants and thickness are in good agreement with experimental results. Keywords: Tructural; Morphological; Optical and Electrical Properties; Nanostructured Cadmium Oxide (CdO); Nano Thin Films; Anti-Cancer Nano Drug; Cancer Cells; Tissues and Tumors; Synchrotron and Synchrocyclotron Radiations


Coatings ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 938
Author(s):  
Zheng-Yong Wang ◽  
Er-Tao Hu ◽  
Qing-Yuan Cai ◽  
Jing Wang ◽  
Hua-Tian Tu ◽  
...  

Solar selective absorbers have significant applications in various photothermal conversion systems. In this work, a global optimization method based on genetic algorithm was developed by directly optimizing the solar photothermal conversion efficiency of a nano-chromium (Cr) film-based solar selective absorber aiming to work at the specified working temperature and solar concentration. In consideration of the semi-transparent metal absorption layer employed in multilayered solar selective absorbers, the optical constants of ultrathin Cr film were measured by spectroscopic ellipsometer and introduced into the optimization process. The ultrathin Cr film-based solar selective absorber was successfully designed and fabricated by the magnetron sputtering method for the working temperature at 600 K and a solar concentration of 1 Sun. The measured reflectance spectra of the sample show a good agreement with the numerical simulations based on measured optical constants of ultrathin Cr film. In comparison, the simulated results by using the optical constants of bulk Cr film or literature data exhibit a large discrepancy with the experimental results. It demonstrates the significance of considering the actual optical constants for the semi-transparent metal absorption layer in the design of nano-metal film-based solar selective absorber.


2018 ◽  
Vol 32 (08) ◽  
pp. 1850096 ◽  
Author(s):  
Esmaeil Pakizeh ◽  
Mahmood Moradi

Ferroelectric Pb(ZrTi)O3 (PZT) nanotubes were prepared by sol–gel method and porous anodic alumina (PAA) membrane using spin-coating technique. This method is based on filling-pyrolysis-filling process and the use of one-stage alumina membranes. One of the advantages of this method is its rapidity, which takes only 1 h time before the calcination step. The effect of repeated pores filling was investigated to get the required size of nanotubes. The field emission scanning electron microscope (FE-SEM) images were shown that the PZT nanotubes have inner diameters in the range of 65–90 nm and length of about 50–60 [Formula: see text]m. This means that the samples have a significant aspect ratio (700–800). Also the FE-SEM image confirmed that the highly ordered, hexagonally distributed PAA membranes with the pore diameter about 140–150 nm were formed. The X-ray diffraction (XRD) results showed that the PZT nanotubes have a tetragonal structure. The metal oxide bands like ZrO6 and TiO6 of the final PZT nanotubes were detected by Fourier transform infrared (FT-IR) analysis and confirmed the formation of perovskite structure. By using FT-IR spectroscopy and Kramers–Kronig transformation method, the optical constants like real [Formula: see text]([Formula: see text]) and imaginary [Formula: see text]([Formula: see text]) parts of dielectric function, extinction coefficient k([Formula: see text]) and refractive index n([Formula: see text]) were determined. It was shown that the optical constants of PZT nanotubes are different from PZT nanoparticles.


2011 ◽  
Vol 18 (1) ◽  
pp. 42-47 ◽  
Author(s):  
Jian-guo Lü ◽  
Chun-bin Cao ◽  
Xue-ping Song ◽  
Zhao-qi Sun

2021 ◽  
Vol 12 (1) ◽  
pp. 749-756
Author(s):  
Fakhria A Al-joufi ◽  
Jawaher AlEnzi ◽  
Madawy Alhazmi ◽  
Hassan A Elgebaly

ZnO-NPs have displayed anticancer activity against a broad range of tumor cells. The present research work was planned to formulate highly pure and well-characterized ZnO-NPs, in addition, to investigate their cytotoxicity against two types of cancer cells. The cancer cells that had been investigated in the present study were breast (MCF7) and prostate (PC3) cancer cells. The aqueous sol-gel method is a powerful and cost-effective technique for the synthesis of high pure ZnO-NPs. While the anticancer activities of ZnO-NPs on both MCF7 and PC3 were determined by MTT assay. Characterizations of ZnO-NPs were fundamentally evaluated by their morphological and structural properties, in addition to their particle size distribution with the aid of SEM and EDX, respectively. ZnO NPs were successfully prepared using sol-gel method in a range of nano-scale. Scanning electron microscopy (SEM) has shown flower-like nanoparticles of zinc oxide, their nano-size has ranged from 4.497 nm. to 143.7 nm. Results of EDX characterization has exhibited a good purity of ZnO-NPs (zinc content of 50% and Oxygen content of 50 %). There was size-dependent effectiveness of ZnO-NPs as an anticancer agent on both MCF7 and PC3. In addition, there were positive correlation between anticancer activities and low toxicity with the size of ZnO-NPs. At 12.2 μg/ml, ZnO-NPs has exhibited around 51% reduction in the viability of cancerous cells. In conclusion, the results of this study have shown that there was an effective and notable dose-dependent manner in the treatment of MCF7 and PC3 with ZnO-NPs, in the cell line approaches. 


2011 ◽  
Vol 284 (12) ◽  
pp. 2905-2908 ◽  
Author(s):  
Jianguo Lv ◽  
Kai Huang ◽  
Xuemei Chen ◽  
Jianbo Zhu ◽  
Chunbin Cao ◽  
...  

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