Structure and properties of CO2- centers in biological and synthetic hydroxyapatite

被引：4

作者：

Rudko, V. V. ^{[1
]}

Baran, N. P. ^{[1
]}

Vorona, I. P. ^{[1
]}

Ishchenko, S. S. ^{[1
]}

Okulov, S. M. ^{[1
]}

Chumakova, L. S. ^{[1
]}

机构：

[1] NAS Ukraine, Inst Semicond Phys, UA-03028 Kiev, Ukraine

来源：

11TH EUROPHYSICAL CONFERENCE ON DEFECTS IN INSULATING MATERIALS (EURODIM 2010) | 2010年 / 15卷

关键词：

TOOTH ENAMEL; EPR;

D O I：

10.1088/1757-899X/15/1/012032

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Biological and synthetic carbonate-containing hydroxyapatites (HAP) were exposed to gamma-rays and studied by the electron paramagnetic resonance (EPR) and the electron-nuclear double resonance (ENDOR). Two types of CO2- radicals - axial and orthorhombic ones - were shown to be the dominating gamma-induced paramagnetic centers in the abovementioned materials. The study of metastable radiation-induced centers allowed to identify these defects with molecular ions CO33- in B position. The mechanism of CO2- radical formation was proposed to be CO32--> CO33--> CO2-.

引用

页数：10

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