高等学校化学学报 ›› 2006, Vol. 27 ›› Issue (4): 632.

• 研究快报 • 上一篇    下一篇

纳米脂质体包裹荧光试剂进入单细胞的研究

孙悦1, 卢敏2, 殷学锋1   

  1. 1. 浙江大学化学系微分析系统研究所; 2. 浙江大学生命科学学院生物大分子与酶工程研究所,  杭州 310027
  • 收稿日期:2005-12-20 出版日期:2006-04-10 发布日期:2006-04-10
  • 通讯作者: 殷学锋(1945年出生), 男, 教授, 博士生导师, 主要从事微流控分析芯片研究. E-mail: yinxf@zju.edu.cn
  • 基金资助:

    国家自然科学基金(批准号: 20475049)资助.

Intracellular Delivery of Fluorescent Dyes Mediated by Nanometer-Liposomes

SUN Yue1,  LU Min2,  YIN Xue-Feng1*   

  1. 1. Institute of Microanalytical Systems, Department of Chemistry;  2. Institute of Biologic Macromolecule and Enzymatic Engineering, College of Life Science, Zhejiang University, Hangzhou 310027, China
  • Received:2005-12-20 Online:2006-04-10 Published:2006-04-10
  • Contact: YIN Xue-Feng,E-mail:yinxf@zju.edu.cn

摘要: 本研究首次使用直径约100 nm的小脂质体包裹荧光染料, 通过细胞的内吞作用或融合过程, 转移不透膜荧光物质进入细胞内, 标记细胞内组分.

关键词: 单细胞分析, 脂质体, 细胞内衍生, 荧光染料

Abstract: A new method  that nanometer-liposomes could penetrate the cell membrane to deliver their encapsulated material into cells was investigated.  Nanometer sized-liposomes were produced from phosphatidylcholine to encapsulate fluorescent dyes and FITC labeled superoxide dismutase(SOD-FITC) by an ultrasonic method.  The size distribution of liposomes was determined with a Laser Particle Analyser.  The fluorescence images demonstrate that liposomes can transfer fluorescent dyes(FITC, Rhodamine B), which are not cell membrane permeable, into cells.  Single cell analysis of the delivered SOD-FITC with microchip electrophoresis revealed that the density of liposomes and interaction-time between liposomes and cells affected the efficiency of intracellular delivery of encapsulated material.

Key words: Single cell analysis, Liposome, Intracellular derivatization, Fluorescent dye

中图分类号: 

TrendMD: