نتایج جستجو برای: semiconducting gallium

تعداد نتایج: 21087  

Journal: :The European respiratory journal 1988
M Vanderstappen J F Mornex B Lahneche P Chauvot J F Bouvier T Wiesendanger J Pages P Webert J F Cordier J Brune

Gallium-67 citrate is known to localize within inflammatory sites. Gallium-67 scanning is used for the evaluation of lung inflammation (i.e. alveolitis) during interstitial lung diseases. We investigated 27 patients with cryptogenetic fibrosing alveolitis (n = 17) and hypersensitivity pneumonitis (n = 10) using gallium-67 lung scanning and lung function tests (forced vital capacity, diffusing c...

Journal: :Pathogens and disease 2014
Rodolfo García-Contreras Berenice Pérez-Eretza Elizabeth Lira-Silva Ricardo Jasso-Chávez Rafael Coria-Jiménez Adrián Rangel-Vega Toshinari Maeda Thomas K Wood

The novel antimicrobial gallium is a nonredox iron III analogue with bacteriostatic and bactericidal properties, effective for the treatment of Pseudomonas aeruginosa in vitro and in vivo in mouse and rabbit infection models. It interferes with iron metabolism, transport, and presumably its homeostasis. As gallium exerts its antimicrobial effects by competing with iron, we hypothesized that it ...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2004
Hiroaki Minamisawa Shinpei Iizima Mayumi Minamisawa Satoshi Tanaka Nobumasa Arai Masami Shibukawa

Synthetic zeolites were dissolved in nitric acid, and the resulting solution used as a coprecipitant for the preconcentration of trace amounts of gallium in water samples prior to determination by electrothermal atomic absorption spectrometry (ETAAS). The gallium preconcentration conditions and the ETAAS measurement conditions were optimized. Gallium was quantitatively concentrated with the zeo...

2002
Christopher G. Worley

A novel XRF sample preparation method was investigated to quantify the concentration of gallium in plutonium metal and minimize the possibility of contaminating the instrument with radioactive material. To prepare homogenous specimens and to add an internal standard, the plutonium must first be dissolved. The currently established method then entails removing the plutonium by chromatography and...

Journal: :Dental materials journal 1999
M Nagamine N N Alim T Itota Y Torii M Staninec K Inoue

A new fluoride releasing resin-ionomer cement was used for bonding of gallium alloy restorations in vitro. Etching, priming, and fluoride releasing resin-ionomer cement were used in the experimental group (ARG), prior to placement of the gallium alloy restorations. Three different controls were used: gallium alloy only (G), no etching, fluoride releasing resin-ionomer cement, gallium alloy (RG)...

2011
Brian Wosnitzer Rosna Mirtcheva

Gallium-67 citrate has long been used for imaging of infection and inflammation. Although gallium-67 uptake due to silicone implants and silicone injections has been previously reported in the literature, very few cases are documented. We report a case of increased gallium-67 uptake in the buttocks in a patient who previously received silicone injections in the buttocks, to reemphasize silicone...

Journal: :iranian journal of radiation research 0
m. navvabpour department of radiation technology, paramedical sciences faculty, shahid beheshti university of medical sciences, tehran, iran h. moladoust medical physics, faculty of medicine, guilan university of medical sciences, rasht, iran n. navvabpour mineral medicinal chemistry, imam khomeini international university, mineral chemistry department, qazvin, iran

background: in addition to determining the exact tumor location and its geometric features, an increase of the effective tumor atomic number will enhances the chance in treating the tumoral cells under suitable radiation. in the present study, we assessed metrezoate-labeled gallium transmission in burkett lymphatic cells. materials and methods: human burkitt lymphatic cells were grown in cultur...

2013
Lawrence R. Bernstein

Metallic gallium dissolves slowly in dilute mineral acids but rapidly in aqua regia and concentrated sodium hydroxide. In its compounds, the valency is +3. Its oxygen compounds resemble those of aluminum in that there are highand lowtemperature forms of Ga2O3 and two hydroxides, Ga(OH)3 and GaO·OH. Substances which lower the hydrogen ion concentration throw down a white gelatinous precipitate f...

2016
Ernesto R Soto Olivia O'Connell Fusun Dikengil Paul J Peters Paul R Clapham Gary R Ostroff

Glucan particles (GPs) are hollow, porous 3-5 μm microspheres derived from the cell walls of Baker's yeast (Saccharomyces cerevisiae). The 1,3-β-glucan outer shell provides for receptor-mediated uptake by phagocytic cells expressing β-glucan receptors. GPs have been used for macrophage-targeted delivery of a wide range of payloads (DNA, siRNA, protein, small molecules, and nanoparticles) encaps...

Journal: :Advanced Materials 2021

Long-lasting luminescence in optoelectronic devices is highly sought after for applications optical data storage and display technology. While light-emitting diodes this achieved by exploiting long-afterglow organic materials as active components, such a strategy has never been pursued transistors, which are still rather unexplored whose technological potential yet to be demonstrated. Herein, t...

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