Recent Results in Cancer Research 10
55 s. : il.
Recent results in cancer research ; vol. 10
55 s. : il.
- MeSH
- Dinitrophenols MeSH
- Starvation MeSH
- Phosphorus Isotopes MeSH
- Rats MeSH
- Metabolism MeSH
- Urine MeSH
- Burns MeSH
- Radiation Effects MeSH
- Research MeSH
- Check Tag
- Rats MeSH
- MeSH
- Cell Division physiology MeSH
- Phosphorus chemistry metabolism MeSH
- Cells, Cultured methods instrumentation MeSH
- Humans MeSH
- Magnetic Resonance Spectroscopy methods statistics & numerical data MeSH
- Tumor Cells, Cultured metabolism growth & development MeSH
- Radioisotopes MeSH
- In Vitro Techniques MeSH
- Check Tag
- Humans MeSH
The unique feature of nuclear accidents with neutron exposure is the induced radioactivity in body tissues. For dosimetry purposes, the most important stable isotopes occurring in human body, which can be activated by neutrons, are 23 Na and 32 S. The respective activation reactions are as follows:23Na(n,γ)24Na and32S(n,p)32P. While sodium occurs in human blood, sulfur is present in human hair. In order to verify the practical feasibility of this dosimetry technique in conditions of our laboratory, samples of human blood and hair were irradiated in a channel of a training reactor VR-1.24Na activity was measured by gamma-ray spectrometry.32P activity in hair was measured by means of a proportional counter. Based on neutron-spectrum calculation, relationships between neutron dose and induced activity were derived for both blood and hair.
- MeSH
- Radiation Dosage MeSH
- Blood radiation effects MeSH
- Humans MeSH
- Neutrons * MeSH
- Radioactivity MeSH
- Phosphorus Radioisotopes analysis MeSH
- Sodium Radioisotopes MeSH
- Radiometry methods MeSH
- Sulfur analysis MeSH
- Sodium analysis MeSH
- Radioactive Hazard Release MeSH
- Hair radiation effects MeSH
- Gamma Rays MeSH
- Check Tag
- Humans MeSH
- Publication type
- Journal Article MeSH
- Geographicals
- Czech Republic MeSH
Liquid radioactive waste is a common by-product when using radioactive isotopes in research and medicine. Efficient remediation of such liquid waste is crucial for increasing safety during the necessary storage of the material. Herein, we present a novel Gum Karaya stabilized magnetite for the efficient removal of radioactive phosphorus (32)P from liquid radioactive waste. This environmentally friendly material is well suited to be used as a nanohydrogel for the removal of liquid waste, which can then be stored in a smaller space and without the risk of the spills inherent to the initial liquid material. The maximum adsorption capacity of the GK/M in this study was found to be 15.68 GBq/g. We present a thorough morphological characterization of the synthesised GK/M, as well as a discussion of the possible phosphorus adsorption mechanisms.
- MeSH
- Adsorption MeSH
- X-Ray Diffraction MeSH
- Phosphates isolation & purification MeSH
- Photoelectron Spectroscopy MeSH
- Karaya Gum chemistry MeSH
- Kinetics MeSH
- Colloids chemistry MeSH
- Nanocomposites ultrastructure MeSH
- Waste Disposal, Fluid MeSH
- Ferrosoferric Oxide chemistry MeSH
- Water Pollutants, Radioactive isolation & purification MeSH
- Radioactive Waste analysis MeSH
- Spectroscopy, Fourier Transform Infrared MeSH
- Temperature MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH