| Revista: | Brazilian journal of physics |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000334080 |
| ISSN: | 0103-9733 |
| Autores: | Aydin, Murat1 |
| Instituciones: | 1Adiyaman University, Faculty of Education, Adiyaman. Turquía |
| Año: | 2010 |
| Periodo: | Dic |
| Volumen: | 40 |
| Número: | 4 |
| Paginación: | 429-431 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico, descriptivo |
| Resumen en inglés | Electron paramagnetic resonance spectroscopy has been used for the study of the free radicals produced in the powders of L-arginine monohydrochloride, ala-ala and DL-β-leucine gamma-irradiated at room temperature. The structures of the radicals formed in compounds were determined as NH2(NH)NHCHCH2CH2CH(NH2)COOH, CH3CHCOOH and (CH3)2CCH(NH2)CH2COOH respectively. The paramagnetic species were found to be stable at room temperature more than three months. It was determined that unpaired electron interacted with nearby protons and 14N nucleus in these radicals. The g values of the radicals and the hyperfine structure constants of the free electron were also measured. These results were compared with the earlier studies in amino acid and derivatives radicals and discussed |
| Disciplinas: | Física y astronomía, Química |
| Palabras clave: | Electromagnetismo, Física atómica y molecular, Bioquímica, Radicales libres, Irradiación gama, Amino ácidos compuestos, Resonancia paramagnética electrónica |
| Keyword: | Physics and astronomy, Chemistry, Atomic and molecular physics, Electromagnetism, Biochemistry, Free radicals, Gamma irradiation, Amino acids compounds, Electron paramagnetic resonance |
| Texto completo: | Texto completo (Ver HTML) |
