Dynamics of Biocatalytic Microengines Mediated by Variable Friction Control

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• 作者：Samuel Sanchez ; Alexander A. Solovev ; Yongfeng Mei ; Oliver G. Schmidt
• 刊名：Journal of the American Chemical Society
• 出版年：2010
• 出版时间：September 29, 2010
• 年：2010
• 卷：132
• 期：38
• 页码：13144-13145
• 全文大小：146K
• 年卷期：v.132,no.38(September 29, 2010)
• ISSN：1520-5126

文摘

We describe the motion of self-propelled hybrid microengines containing catalase enzyme covalently bound to the cavity of rolled-up microtubes. The high efficiency of these hybrid microengines allows them to move at a very low concentration of peroxide fuel. The dynamics of the catalytic engines is mediated by the generation of front-side bubbles, which increase the drag force and make them turn. The specific modification of the inner layer of microtubes with biomolecules can lead to other configurations to generate motion from different chemical fuels.