Isotropic radical in biological apatites
作者： V.V. Rudko , S.S. Ishchenko , I.P. Vorona , N.P. Baran
DOI: 10.1016/J.RADMEAS.2007.04.003
关键词: Physical chemistry 、 Electron paramagnetic resonance 、 Isotropy 、 Hydroxylapatite 、 Irradiation 、 Nuclear chemistry 、 Tooth enamel 、 Annealing (metallurgy) 、 Apatite 、 Lattice (order) 、 Chemistry
摘要: Abstract The isotropic CO 2 - EPR spectrum at g ∼ 2.0006 for γ -irradiated powders of dental enamel annealed different temperatures up to 320 ∘ C is studied. signal intensity found increase with the growth annealing temperature 240 . This finding contradicts existing model radical in apatites. possible models biological apatite are analyzed and discussed. On basis results obtained it suggested that tooth bulk localized structural voids hydroxyapatite lattice, which occur vicinity a carbon position B.
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sci-hub.se 参考文章(10)
R. Debuyst, F. Dejehet, S. Idrissi, Isotropic CO3 and CO2 Radicals in Gamma Irradiated Monohydrocalcite Radiation Protection Dosimetry. ,vol. 47, pp. 659- 664 ,(1993) , 10.1093/OXFORDJOURNALS.RPD.A081827
I.P. Vorona, S.S. Ishchenko, N.P. Baran, T.L. Petrenko, V.V. Rudko, Evidence of annealing-induced transformation of radicals in irradiated tooth enamel Radiation Measurements. ,vol. 41, pp. 577- 581 ,(2006) , 10.1016/J.RADMEAS.2005.12.002
F. Callens, P. Moens, R. Verbeeck, An EPR study of intact and powdered human tooth enamel dried at 400 degrees C. Calcified Tissue International. ,vol. 56, pp. 543- 548 ,(1995) , 10.1007/BF00298587
F. J. Callens, R. M. H. Verbeeck, D. E. Naessens, P. F. A. Matthys, E. R. Boesman, Effect of carbonate content on the ESR spectrum near g = 2 of carbonated calciumapatites synthesized from aqueous media. Calcified Tissue International. ,vol. 44, pp. 114- 124 ,(1989) , 10.1007/BF02556470
S.S. Ishchenko, I.P. Vorona, S.M. Okulov, N.P. Baran, 13C hyperfine interactions of CO2- in irradiated tooth enamel as studied by EPR. Applied Radiation and Isotopes. ,vol. 56, pp. 815- 819 ,(2002) , 10.1016/S0969-8043(02)00049-0
Racquel Z. LeGeros, Gilbert Bonel, Renee Legros, Types of "H2O" in human enamel and in precipitated apatites. Calcified Tissue International. ,vol. 26, pp. 111- 118 ,(1978) , 10.1007/BF02013245
Junko Tatsumi-Miyajima, ESR dosimetry for atomic bomb survivors and radiologic technologists Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment. ,vol. 257, pp. 417- 422 ,(1987) , 10.1016/0168-9002(87)90767-4
I.P. Vorona, S.S. Ishchenko, N.P. Baran, The effect of thermal treatment on radiation-induced EPR signals in tooth enamel Radiation Measurements. ,vol. 39, pp. 137- 141 ,(2005) , 10.1016/J.RADMEAS.2004.03.020
Freddy Callens, Comparative EPR and ENDOR results on carbonate derived radicals in different host materials Nukleonika, 42 (2), 565-578 (1997), figg. 6. ,(1997)
S. Ishchenko, , I. Vorona, S. Okulov, , , ENDOR study of irradiated tooth enamel Semiconductor physics, quantum electronics and optoelectronics. ,vol. 2, pp. 84- 92 ,(1999) , 10.15407/SPQEO2.01.084