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Advances in electron spin resonance dosimetry, archeological dating and biomaterials characterization

Grant number: 07/06720-4
Support Opportunities:Regular Research Grants
Duration: February 01, 2008 - January 31, 2011
Field of knowledge:Physical Sciences and Mathematics - Physics
Principal Investigator:Oswaldo Baffa Filho
Grantee:Oswaldo Baffa Filho
Host Institution: Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil


Electron spin resonance (ESR) is a versatile spectroscopic technique for the study of different materials. This project is focused, but not limited to, on the ESR applications for ionizing radiation dosimetry, dating and biomaterials characterization. ESR dosimetry and dating are relatively new areas of application with many open questions that will be addressed by the present research. New methods and approaches will be studied to broaden the applications and to characterize biomaterials. The ESR dosimetry and dating experiments are based in the detection of a signal, stable or with low fading, sensitive to the ionizing radiation. Hard tissues such as bone and tooth enamel as well as minerals had been used for this purpose. However in case of radiological accidents it would be desirable to study alternative materials such as nail and hair. In this case the radicals created by ionizing radiation are not stable and several procedures must be taken to assure the detection of the signal and to infer the actual exposition dose. In another application ST-ESR spectra will be studied to reveal the spectral characteristics associated with the ionizing radiation. (AU)

Articles published in Pesquisa FAPESP Magazine about the research grant:
Las nuevas piezas del rompecabezas 
New pieces of the puzzle 
New pieces of the puzzle 
Las nuevas piezas del rompecabezas 
Articles published in Agência FAPESP Newsletter about the research grant:
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Scientific publications (11)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
KINOSHITA, ANGELA; SKINNER, ANNE R.; GUIDON, NIEDE; IGNACIO, ELAINE; FELICE, GISELE DALTRINI; BUCO, CRISTIANE DE A.; TATUMI, SONIA; YEE, MARCIO; GRACIANO FIGUEIREDO, ANA MARIA; BAFFA, OSWALDO. Dating human occupation at Toca do Serrote das Moendas, Sao Raimundo Nonato, Piaui-Brasil by electron spin resonance and optically stimulated luminescence. Journal of Human Evolution, v. 77, n. SI, p. 187-195, . (07/06720-4)
RIBEIRO, RICARDO DA COSTA; KINOSHITA, ANGELA; DE ARAUJO-JUNIOR, HERMINIO ISMAEL; GRACIANO FIGUEIREDO, ANA MARIA; CARVALHO, ISMAR DE SOUZA; BAFFA, OSWALDO. ESR dating of Toxodon teeth from Baixa Grande, Bahia, Brazil. Journal of South American Earth Sciences, v. 112, . (13/07699-0, 07/06720-4, 18/02866-9)
BLASIOLI, GISELE JANAINA; PEREIRA SILVA, LUCAS HENRIQUE; HOLGADO, LEANDRO ANDRADE; TELLES DE SOUSA, TATIANA PEIXOTO; CATANZARO GUIMARAES, SERGIO AUGUSTO; BAFFA, OSWALDO; KINOSHITA, ANGELA. pplication of Electron Spin Resonance Spectroscopy in Bone Regeneration Studie. Brazilian Journal of Physics, v. 52, n. 2, . (13/07699-0, 07/06720-4)
JÉSSICA MARIANA BONETE; JACQUELINE ROBERTA TAMASHIRO; FÁBIO FRIOL GUEDES DE PAIVA; GEISIANY MARIA DE QUEIROZ-FERNANDES; ÉDER GUIDELLI; OSWALDO BAFFA; ANGELA KINOSHITA. Influence of silver nanoparticles on the tissue reaction of polyacrylic acid-based gel. Acta Cirurgica Brasileira, v. 37, n. 5, . (07/06720-4, 13/07699-0)
ALVES, G. G.; KINOSHITA, A.; DE OLIVEIRA, H. F.; GUIMARAES, F. S.; AMARAL, L. L.; BAFFA, O.. Accuracy of dose planning for prostate radiotherapy in the presence of metallic implants evaluated by electron spin resonance dosimetry. Brazilian Journal of Medical and Biological Research, v. 48, n. 7, p. 644-649, . (07/06720-4)
LUCAS APARECIDO ROSA LEITE; ANGELA KINOSHITA; OSWALDO BAFFA; RODNEY KOZLOWISKI DE AZEVEDO; VANESSA DORO ABDALLAH. Ressonância do Spin Eletrônico (ESR) na detecção de poluição aquática através da relação parasito-hospedeiro. Rev. Ambient. Água, v. 13, n. 6, . (07/06720-4)
CORTES FARIA, FABIO HENRIQUE; KINOSHITA, ANGELA; CARVALHO, ISMAR DE SOUZA; DE ARAUJO-JUNIOR, HERMINIO ISMAEL; PEGORIN, PRISCILA; FIGUEIREDO, ANA MARIA G.; BAFFA, OSWALDO. ESR dating of late Quaternary megafauna fossils from Joao Dourado, Bahia, Brazil. Journal of South American Earth Sciences, v. 101, . (18/02866-9, 07/06720-4, 17/10690-5, 13/07699-0)
LOPES, RENATO PEREIRA; PEREIRA, JAMIL CORREA; KINOSHITA, ANGELA; MOLLEMBERG, MICHELLE; BARBOSA, JR., FERNANDO; BAFFA, OSWALDO. Geological and taphonomic significance of electron spin resonance (ESR) ages of Middle-Late Pleistocene marine shells from barrier-lagoon systems of Southern Brazil. Journal of South American Earth Sciences, v. 101, . (15/15483-2, 18/02866-9, 07/06720-4)
GUIDELLI, EDER J.; LIMA, IARA S.; BAFFA, OSWALDO. Monosodium glutamate for accidental, retrospective, and medical dosimetry using electron spin resonance. RADIATION AND ENVIRONMENTAL BIOPHYSICS, v. 57, n. 4, p. 349-356, . (07/06720-4)
LOPES, RENATO PEREIRA; PEREIRA, JAMIL CORREA; CARON, FELIPE; RITTER, MATIAS DO NASCIMENTO; DE SOUZA, MARCIO SILVA; DILLENBURG, SERGIO REBELLO; BARBOZA, EDUARDO GUIMARAES; TATUMI, SONIA HATSUE; YEE, MARCIO; KINOSHITA, ANGELA; et al. Late Pleistocene-Holocene fossils from Mirim Lake, southern Brazil, and their paleoenvironmental significance: II - Mollusks. Journal of South American Earth Sciences, v. 112, n. 1, . (07/06720-4, 13/07699-0)

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