RESUMO
Selected nanoparticles and nanocomposites on the basis of radioactive elements are reviewed. Isotopes of metallic gold, iodine and technetium salts, CeO2 and other lanthanide and actinide compounds, as well as several p- (P, C, F, Te) and d- (Fe, Co, Cu, Cd, Zn) elements form most common radioactive nanoparticles. Methods for their fabrication, including dopation with radionuclides and neutron/proton/deuteron activation, are discussed. These nanocomposites possess a series of useful applications, in particular in biology and medicine, including cancer therapeutics, drug delivery systems and radiotracers, as well as in the studies of several catalytic processes and materials structure.
Assuntos
Nanopartículas , Radioatividade , Elementos da Série Actinoide , Sistemas de Liberação de Medicamentos , Elementos da Série dos Lantanídeos , Nanocompostos , Neoplasias/terapia , Preparações Farmacêuticas , RadioisótoposRESUMO
Dehydration of inorganic crystallohydrates (Fe2F x 7.1H2O, FeF3 x 3.82O, CoF2 x 4H2O, and NiF2 x 4.4H2O) in the conditions of microwave treatment (MWT) is studied. It is shown that in all cases the MWT changes the defectness of crystals, as well as their thermal stability. The dehydration schemes for the compounds above are presented.
