乳腺组织中Ca、Fe和Zn的XANES谱  

XANES Spectra of Ca、Fe and Zn in Breast Tissues

作　　者：刘成林[1] 张新夷[2] 谢亚宁[3] 刘涛[3] 

机构地区：[1]盐城师范学院物电学院,盐城224002 [2]复旦大学同步辐射研究中心,上海200433 [3]中国科学院高能物理研究所,北京100039

出　　处：《长春理工大学学报（自然科学版）》2008年第1期135-138,共4页Journal of Changchun University of Science and Technology(Natural Science Edition)

基　　金：江苏省高校自然科学基础研究项目(06KJD140199);国家重点基础研究专项973项目(2005CB523306)资助

摘　　要：利用北京同步辐射装置XAFS站对正常的、良性的和癌变的乳腺组织中的Ca、Fe和Zn的X射线近边结构(XANES)进行了分析和研究,结果显示:不同类型的乳腺组织中,只有Fe出现了边前结构,而Ca和Zn没有出现边前结构;在边后,肿瘤组织中Ca和Zn的变化规律基本相似,与正常组织的不同,但是正常组织和癌变组织中Fe的边后规律是相似的,而良性组织中的规律存在特异性。In this paper, X-ray absorption near-edge structure （XANES） spectra of Ca, Fe and Zn of normal, benign and cancerous breast tissues are analyzed in XAFS station of Beijing Synchrotron Radiation Facility （BSRF）. The results of the X-rays absorption near edge structure of Ca, Fe and Zn in various breast tissues show there are pre-edge structures in Fe K- edge absorption spectrum, but not in that of Ca and Zn. The change rules of Ca and Zn behind their K-edge in tumor tissues are similar, but not as same as in normal tissues. The change rule of Fe behind their K-edge in normal breast tissues is similar to that in breast cancer tissue, but not in benign tissue. The differences of radial distribution function ofthree elements in the tissues are definite, but the rule is not specific. These results show the circumstances of Ca, Fe and Zn are very complex in tissues, the scattering of light elements affect experimental results especially.

关 键 词：XANES 乳腺组织 同步辐射 

分 类 号：O772.8[理学—晶体学] R737.9[医药卫生—肿瘤]