高等学校化学学报 ›› 2011, Vol. 32 ›› Issue (4): 885.

• 研究论文 • 上一篇    下一篇

富勒烯衍生物纳米颗粒水悬液对细菌生长的抑制作用

姚璐,宋高广,黄成,杨新林   

  1. 北京理工大学生命科学与技术学院, 北京 100081
  • 收稿日期:2010-06-01 修回日期:2010-07-26 出版日期:2011-04-10 发布日期:2011-03-09
  • 通讯作者: 杨新林 E-mail:xlyang@bit.edu.cn
  • 基金资助:

    国家自然科学基金(批准号: 20672012)和北京市自然科学基金(批准号:  2082020)资助.

Inhibitory Effects of Aqueous Nanoparticle Suspensions of [60]Fullerene Derivatives on Bacterial Growth

YAO Lu, SONG Gao-Guang, HUANG Cheng, YANG Xin-Lin*   

  1. School of Life Science and Technology, Beijing Institute and Technology, Beijing 100081, China
  • Received:2010-06-01 Revised:2010-07-26 Online:2011-04-10 Published:2011-03-09
  • Contact: YANG Xin-Lin E-mail:xlyang@bit.edu.cn
  • Supported by:

    国家自然科学基金(批准号: 20672012)和北京市自然科学基金(批准号:  2082020)资助.

摘要: 富勒烯纳米颗粒的生物学效应受到了广泛关注。本文首次测定了二加成亚甲基富勒烯[60]二膦酸四乙酯(bis-methanophosphonate fullerene, BMPF)的纳米水悬液(nano-BMPF)和富勒醇纳米水悬液(nano-fullerol)对细菌生长的影响。结果显示,nano-BMPF和nano-fullerol在黑暗条件下可抑制革兰氏阳性菌金黄色葡萄球菌的生长,且呈现浓度梯度依赖性,半抑制浓度IC50值分别为9.1 μM和4.2 μM;nano-fullerol对金黄色葡萄球菌生长的抑制可能与活性氧无关, nano-BMPF对金黄色葡萄球菌生长的抑制则可能与超氧阴离子自由基(O2.-)有关。在黑暗条件下二者对革兰氏阴性菌大肠杆菌的生长无影响。以上结果表明,这2种富勒烯衍生物纳米颗粒作为抗生素在生物医用领域具有潜在的应用前景。

关键词: 富勒烯衍生物, 纳米颗粒水悬液, 抑菌

Abstract: The biological activities of fullerene nanoparticles have received extensive attention. The antibacterial effects of two aqueous nanoparticle suspensions of [60]fullerene derivatives, a bis-methanophosphonate fullerene (BMPF) and fullerol were studied for the first time. The results showed that both nano-BMPF and nano-fullerol could dose-dependently inhibit the growth of the gram-positive bacteria S. aureus under dark condition. The 50% inhibition concentration of two nanoparticle suspensions were 9.1 μM and 4.2 μM, respectively. It was also revealed that the antibacterial activity of nano-fullerol probably did not correlate to reactive oxygen species, but superoxide anions (O2.-) might be involved in the antibacterial action of nano-BMP. In addition, both aqueous nanoparticle suspensions couldn’t inhibit the growth of the gram-negative bacteria E. coli under dark condition. These results implied that nanoparticles of both fullerene derivatives might be potentially used as antibiotics in biomedicine.

Key words: Fullerene derivatives, Aqueous nanoparticle suspension, Antibacteria

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