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Effect of Gold Nanoparticles Contrast Agent Concentration on X-Ray Diagnoses: Experimental and Computational Study
Mohamed I. Badawi,
Moustafa M. Ahmed,
Soheir M. I. El-kholy,
Nivan M. Fikry,
M. S. Nasr Eldin
Issue:
Volume 2, Issue 4, July 2014
Pages:
63-69
Received:
26 June 2014
Accepted:
10 July 2014
Published:
20 July 2014
Abstract: Nanotechnology applied to biological problems represents an emerging filed with its potential to offer extremely sensitive diagnostics and targeted cancer therapies. Gold nanoparticles (GNPs) are of interest as potential in vivo diagnostic and as X-ray contrast agents, the electromagnetic coupling between three-dimensional gold nanoparticles (AuNPs) is investigated in different concentration. We report on the observation of multipeaks electric field distribution between adjacent gold nanoparticles in the gap distance of AuNPs and on its edges .In this computational and exponential study we examine image reconstruction of electric field distribution occurs due to striking of x-ray on a gold nanoparticles at different concentration, also study the relation between gap distance between neighboring AuNPs. A CST STUDIO program used to calculate the electric field distribution .Electric field images of the gold nanoparticles as contrast agent demonstrate the potential of the approach for detecting the potential of gold nanoparticles in enhancing the image quality.
Abstract: Nanotechnology applied to biological problems represents an emerging filed with its potential to offer extremely sensitive diagnostics and targeted cancer therapies. Gold nanoparticles (GNPs) are of interest as potential in vivo diagnostic and as X-ray contrast agents, the electromagnetic coupling between three-dimensional gold nanoparticles (AuNPs...
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Review on Magneto-Rheological Fluid and its Application
Xu Biao,
Luo Yiping,
Ren Hongjuan
Issue:
Volume 2, Issue 4, July 2014
Pages:
70-74
Received:
10 July 2014
Accepted:
19 July 2014
Published:
30 July 2014
Abstract: Magnetorheological fluids have received widespread attention as smart materials due to their tunable properties. MRF consists of three key components including, soft magnetic particles, carrier liquids, and additives. This review details the characteristics, composition, and rheological principle of MRF, working principle of MRF devices, and their applications in other engineering arenas. The aim is to provide a basis understanding of magneto-rheological components and technology to the readers.
Abstract: Magnetorheological fluids have received widespread attention as smart materials due to their tunable properties. MRF consists of three key components including, soft magnetic particles, carrier liquids, and additives. This review details the characteristics, composition, and rheological principle of MRF, working principle of MRF devices, and their ...
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Green Synthesis of Tin Based Nano Medicine: Assessment of Microstructure and Surface Property
Sethumadhavan Sudhaparimala,
Arumugam Gnanamani A.,
Asit Baran Mandal
Issue:
Volume 2, Issue 4, July 2014
Pages:
75-83
Received:
4 June 2014
Accepted:
22 July 2014
Published:
10 August 2014
Abstract: The present study is about an eco-friendly and cost effective method of using five potent plant extracts and sunlight as the reaction medium and grinding as a nano technique to prepare nano composite of tin (IV) oxide from tin metal. The equivalent preparation is widely used as a drug formulation in the treatment of spectrum of infectious diseases. The intensive grinding and calcinations with the plant material lead to the formation of nano crystallite with a tetragonal phase with an average crystallite size of 27nm. The elements Ca, P, Na, Mg and Fe at the microscopic level identified at the surface of the nano crystallite by the X – ray Photo Electron Spectroscopy showed the uniqueness of the synthesis. The formation of spherical crystallites with good distribution of pores was indicated by the electron microscopic images and adsorption studies. The presence of oxygen deficiency arising due to nonstoichiometry in the crystal lattice was evident from the Electron paramagnetic Resonance study. The free radical equivalent of DPPH radical calculated for the final stage sample was suggestive of its anti-oxidant property and hence it’s biological activity. The overall research study provided an alternative route of preparing nontoxic nano tin (IV) oxide composite with good biological activity apart from its already proven catalytic and sensor applications.
Abstract: The present study is about an eco-friendly and cost effective method of using five potent plant extracts and sunlight as the reaction medium and grinding as a nano technique to prepare nano composite of tin (IV) oxide from tin metal. The equivalent preparation is widely used as a drug formulation in the treatment of spectrum of infectious diseases....
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Facile Synthesis of Silver Nanoparticle and Their Potential Application
Ananya Shukla,
Bharat A. Makwana
Issue:
Volume 2, Issue 4, July 2014
Pages:
84-92
Received:
11 July 2014
Accepted:
15 August 2014
Published:
20 August 2014
Abstract: Our research focused on the production, characterization and application of silver nanoparticles (AgNPs), which can be utilized in biomedical research and environmental cleaning applications. We used an environmentally friendly Green synthetic technique for the production of the AgNPs. The Vitex negundo leaf extract used to produce the nanoparticles were from aqueous extracts. Synthesis of colloidal AgNPs was monitored by UV-Visible spectroscopy. The UV-Visible spectrum showed a peak between 410 nm corresponding to the Plasmon absorbance of the AgNPs. The method used for the preparation of silver nanoparticles was found to be rapid and require no toxic chemicals. The Vitex negundo capped silver nanoparticles were characterized by UV/Vis-spectroscopy, Particle size analyzer (PSA), Transmission electron microscopy (TEM) and Energy dispersive X-ray Analysis (EDX). Duly characterized nanoparticles were explored for their application as antimicrobial agent were also found to exhibit reasonably good antimicrobial activity when compared with standard Chloramphenicol, which suggests its potential use as antimicrobial agent with Gram-negative and Gram-positive bacteria, which is not toxic for human healthy cells, but inhibit bacterial growth.
Abstract: Our research focused on the production, characterization and application of silver nanoparticles (AgNPs), which can be utilized in biomedical research and environmental cleaning applications. We used an environmentally friendly Green synthetic technique for the production of the AgNPs. The Vitex negundo leaf extract used to produce the nanoparticle...
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