Identification of free radicals induced by gamma irradiation in amino acid derivatives

Detalhes bibliográficos
Autor(a) principal: Aydin,Murat
Data de Publicação: 2010
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Physics
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332010000300008
Resumo: Powders of N- acetyl- L- leucine and N- methyl- L- glutamic acid were gamma irradiated and the free radicals formed were investigated at room temperature by electron paramagnetic resonance technique. The free radicals formed in compounds were attributed to the (CH3)2CCH2CH(NHCOCH3)COOH and HOOCCH2CH2C (NHCH3)COOH radicals respectively. Both radicals are very stable and we could observe them for five months without almost intensity diminution at room temperature. The g values of the radicals and the hyperfine structure constants of the free electron with nearby protons and 14N nucleus were determined. The results were found to be in good agreement with the existing literature data.
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spelling Identification of free radicals induced by gamma irradiation in amino acid derivativesGamma irradiationEPRFree radicalsLeucineGlutamic acidPowders of N- acetyl- L- leucine and N- methyl- L- glutamic acid were gamma irradiated and the free radicals formed were investigated at room temperature by electron paramagnetic resonance technique. The free radicals formed in compounds were attributed to the (CH3)2CCH2CH(NHCOCH3)COOH and HOOCCH2CH2C (NHCH3)COOH radicals respectively. Both radicals are very stable and we could observe them for five months without almost intensity diminution at room temperature. The g values of the radicals and the hyperfine structure constants of the free electron with nearby protons and 14N nucleus were determined. The results were found to be in good agreement with the existing literature data.Sociedade Brasileira de Física2010-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332010000300008Brazilian Journal of Physics v.40 n.3 2010reponame:Brazilian Journal of Physicsinstname:Sociedade Brasileira de Física (SBF)instacron:SBF10.1590/S0103-97332010000300008info:eu-repo/semantics/openAccessAydin,Murateng2010-09-27T00:00:00Zoai:scielo:S0103-97332010000300008Revistahttp://www.sbfisica.org.br/v1/home/index.php/pt/ONGhttps://old.scielo.br/oai/scielo-oai.phpsbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br1678-44480103-9733opendoar:2010-09-27T00:00Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)false
dc.title.none.fl_str_mv Identification of free radicals induced by gamma irradiation in amino acid derivatives
title Identification of free radicals induced by gamma irradiation in amino acid derivatives
spellingShingle Identification of free radicals induced by gamma irradiation in amino acid derivatives
Aydin,Murat
Gamma irradiation
EPR
Free radicals
Leucine
Glutamic acid
title_short Identification of free radicals induced by gamma irradiation in amino acid derivatives
title_full Identification of free radicals induced by gamma irradiation in amino acid derivatives
title_fullStr Identification of free radicals induced by gamma irradiation in amino acid derivatives
title_full_unstemmed Identification of free radicals induced by gamma irradiation in amino acid derivatives
title_sort Identification of free radicals induced by gamma irradiation in amino acid derivatives
author Aydin,Murat
author_facet Aydin,Murat
author_role author
dc.contributor.author.fl_str_mv Aydin,Murat
dc.subject.por.fl_str_mv Gamma irradiation
EPR
Free radicals
Leucine
Glutamic acid
topic Gamma irradiation
EPR
Free radicals
Leucine
Glutamic acid
description Powders of N- acetyl- L- leucine and N- methyl- L- glutamic acid were gamma irradiated and the free radicals formed were investigated at room temperature by electron paramagnetic resonance technique. The free radicals formed in compounds were attributed to the (CH3)2CCH2CH(NHCOCH3)COOH and HOOCCH2CH2C (NHCH3)COOH radicals respectively. Both radicals are very stable and we could observe them for five months without almost intensity diminution at room temperature. The g values of the radicals and the hyperfine structure constants of the free electron with nearby protons and 14N nucleus were determined. The results were found to be in good agreement with the existing literature data.
publishDate 2010
dc.date.none.fl_str_mv 2010-09-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332010000300008
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332010000300008
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-97332010000300008
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Física
publisher.none.fl_str_mv Sociedade Brasileira de Física
dc.source.none.fl_str_mv Brazilian Journal of Physics v.40 n.3 2010
reponame:Brazilian Journal of Physics
instname:Sociedade Brasileira de Física (SBF)
instacron:SBF
instname_str Sociedade Brasileira de Física (SBF)
instacron_str SBF
institution SBF
reponame_str Brazilian Journal of Physics
collection Brazilian Journal of Physics
repository.name.fl_str_mv Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)
repository.mail.fl_str_mv sbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br
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