نتایج جستجو برای: iodine isotopes
تعداد نتایج: 46156 فیلتر نتایج به سال:
Long path length infrared tunable diode laser absorption spectroscopy is being developed as a technique for monitoring several low energy beta-decay radioisotopes associated with nuclear waste offgases. We will report a determination of sensitivity forl 4co 2 and an evaluation of potential interferences. Recent experiments have also ~~monstrated an applicability for measuring iodine isotopes su...
Treatment with radioactive isotopes has been the irst clinical application of Nuclear Medicine, when, in the early ‘40s, the Phosphorus-32 was used for polycythemia and some forms of leukemia [4,5] and subsequently the administration of iodine-131 was adopted for the therapy of thyroid disease [4,6]. Than nuclear medicine therapy has come a long and successful road, with the synthesis of many c...
Radioiodinated pharmaceuticals are convenient tracers for clinical and research investigations because of the relatively long half-lives of radioactive iodine isotopes (i.e., 123I, 124I, and 131I) and the ease of their chemical insertion. Their application in radionuclide imaging and therapy may, however, be hampered by poor in vivo stability of the C-I bond. After an overview of the use of iod...
Iodine-129 is routinely released in the gaseous and liquid low-level radioactive effluents of nuclear spent fuel reprocessing plants. Environmental impact assessment of these discharges are performed based on monitoring samples of different types of natural indicators. Thyroid is considered as a relevant organ to monitor radioactive iodine isotopes. In this study, bovine thyroids were collected...
Ten years after the Chernobyl nuclear plant catastrophe more than 500 children in Belarus are suffering from thyroid cancer. The major cause of the high incidence of thyroid cancer in children under 15 years of age appears to be contamination resulting from that catastrophe, mainly with isotopes of radioactive iodine. Another important factor may be iodine deficiency in the environment. A count...
BACKGROUND The Chornobyl accident in 1986 exposed thousands of people to radioactive iodine isotopes, particularly (131)I; this exposure was followed by a large increase in thyroid cancer among those exposed as children and adolescents, particularly in Belarus, the Russian Federation, and Ukraine. Here we report the results of the first cohort study of thyroid cancer among those exposed as chil...
Released radioactive materials from a nuclear power plant due to an accident can be transported to far regions by wind. Some models are available to predict the dispersion. This article reports some parts of the results of a research in which using one of the models, named HYSPLIT, to predict the dispersion of some isotopes of iodine and cesium released from ten nuclear power plant to the atmos...
BACKGROUND The aim of the study was to explore Fc mutations of a humanised anti-Lewis-Y antibody (IgG1) hu3S193 as a strategy to improve therapeutic ratios for therapeutic payload delivery. METHODS Four hu3S193 variants (I253A, H310A, H435A and I253A/H310A) were generated via site-directed mutagenesis and radiolabelled with diagnostic isotopes iodine-125 or indium-111. Biodistribution studies...
The present work gives a methodology for assessing radiological concentration of I, I, I, I, and I due to a hypothetical accident of TRIGA Mark-II research Reactor at AERE, Savar, Bangladesh. The concentrations were estimated through different pathways like ingestion of vegetation, milk, and meat from air and ground deposition. The maximum air concentrations for all 16 directions were found at ...
As medical cyclotrons are becoming more abundant, I and I are getting more attention as alternatives to I for diagnostics of thyroid disease. Both I and I provide better diagnostics, deliver less dose to patients and both reduce the risk of thyroid stunning, facilitating subsequent therapy. Dry distillation of radioiodine from tellurium dioxide targets has become the standard approach to produc...
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