Acta Chimica Sinica ›› 2005, Vol. 63 ›› Issue (15): 1379-1382.     Next Articles

Communications

桑蚕丝腺体和丝纤维中金属离子的含量

周丽1,TERRY, Ann E.1 2,黄郁芳3,邵正中1,陈新*1   

  1. (1复旦大学高分子科学系 教育部聚合物工程重点实验室 上海 200433)
    (2牛津大学动物系 牛津 OX1 3PS 英国)
    (3复旦大学材料科学系 国家微分析中心 上海 200433)
  • 收稿日期:2005-01-26 修回日期:2005-05-10 出版日期:2005-08-15 发布日期:2010-12-10
  • 通讯作者: 陈新

Metal Element Contents in Silk Gland and Silk Fiber of Bombyx mori Silkworm

ZHOU Li1, TERRY Ann E.1,2, HUANG Yu-Fang3, SHAO Zheng-Zhong1, CHEN Xin*1   

  1. (1 Key Laboratory of Molecular Engineering of Polymers of the Ministry of Education of China, Department of
    Macromolecular Science, Fudan University, Shanghai 200433)
    (2 Department of Zoology, University of Oxford, South Parks Road, Oxford, OX1 3PS, UK)
    (3 Department of Material Science, National Microanalysis Center, Fudan University, Shanghai 200433)
  • Received:2005-01-26 Revised:2005-05-10 Online:2005-08-15 Published:2010-12-10
  • Contact: CHEN Xin

The contents of metal elements in silk gland and silk fiber of B. mori silkworm have been detailedly analyzed by proton induced X-ray emission (PIXE), inductively coupled plasma mass spectroscopy (ICP-MS) and atomic adsorption spectroscopy (AAS). The results showed that Na, Mg, K, Ca, Cu, Zn, Fe and Mn were found in both silk gland and silk fiber, while Rb and Sr were also possibly contained. The contents of these elements varied from silk gland to different kinds of silk fibers (i.e. cocoon silk, forced-drawn silk and degummed silk), and the changes of element content might correspond to the effect of these metal elements on the spinning process (conformation transition of silk fibroin) of B. mori silkworm.

Key words: silk fibroin, conformation transition, spinning mechanism, artificial spinning, microanalysis, spider silk