化学学报 ›› 2007, Vol. 65 ›› Issue (4): 344-348. 上一篇    下一篇

研究论文

水热法制备质谱专用提取多肽的金属螯合纳米磁珠

王娜†,1, 董方霆†,2, 张学敏2, 李爱玲2, 王杰2, 王红霞2, 李萍2, 吴胜明2, 杨晓虹*,1   

  1. (1吉林大学药学院 长春 130021)
    (2国家生物医学分析中心 北京 100850)
  • 投稿日期:2006-04-11 修回日期:2006-05-29 发布日期:2007-02-28
  • 通讯作者: 杨晓虹

Hydrothermal Synthesis of Metal-Chelated Magnetic Nanobeads for Exclusive Use of Peptides Extraction by Mass Spectrum

WANG Na†,1; DONG Fang-Ting†,2; ZHANG Xue-Min2; LI Ai-Ling2; WANG Jie2; WANG Hong-Xia2; LI Ping2; WU Sheng-Ming2; YANG Xiao-Hong*,1   

  1. (1 Pharmaceutical Department of Jilin University, Changchun 130021)
    (2 National Center of Biomedical Analysis, Beijing 100850)
  • Received:2006-04-11 Revised:2006-05-29 Published:2007-02-28
  • Contact: YANG Xiao-Hong

应用水热法合成质谱专用提取血清多肽的金属螯合纳米磁珠, 可用于质谱对血清中多肽分布情况的研究, 获得血清多肽谱. 对磁珠进行透射电镜(TEM), 原子力显微镜(AFM)和傅立叶红外光谱FT-IR的表征, 显示该粒子粒径在70~90 nm. 并通过质谱验证该金属螯合磁珠能有效提取血清中的多肽, 该磁珠为质谱进行疾病诊断解决样品制备的技术难题, 具有广阔应用前景.

关键词: 热水解法, 质谱, 多肽, 金属螯合磁珠

A novel hydrothermal route has been developed to produce metal-chelated magnetic nanobeads which help to study serum peptides profiles by matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrum. The obtained particles were analyzed by TEM, AFM and FT-IR techniques, and it showed that the average particle size ranged between 70~90 nm. It is validated by mass spectrum that the metal-chelated magnetic nanobeads can extract serum peptides in an effective way. These beads are very useful in the clinic studies on serum preparation for mass spectrum in future.

Key words: hydrothermal method, mass spectrum, peptide, metal-chelated magnetic nanobead