Self-Propelled Micromotors Driven by the Magnesium–Water Reaction and Their Hemolytic Properties

Authors

  • Dr. Fangzhi Mou,

    1. State Key Laboratory of Advanced Technology for Materials, Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070 (P.R. China)
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    • These authors contributed equally to this work.

  • Chuanrui Chen,

    1. State Key Laboratory of Advanced Technology for Materials, Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070 (P.R. China)
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    • These authors contributed equally to this work.

  • Prof. Huiru Ma,

    1. Department of Chemistry, Wuhan University of Technology (P.R. China)
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    • These authors contributed equally to this work.

  • Dr. Yixia Yin,

    1. State Key Laboratory of Advanced Technology for Materials, Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070 (P.R. China)
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  • Prof. Qingzhi Wu,

    1. State Key Laboratory of Advanced Technology for Materials, Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070 (P.R. China)
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  • Prof. Jianguo Guan

    Corresponding author
    1. State Key Laboratory of Advanced Technology for Materials, Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070 (P.R. China)
    • State Key Laboratory of Advanced Technology for Materials, Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070 (P.R. China)

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  • This work was supported by the National Natural Science Foundation of China (51002111), the Natural Science Foundation of Hubei Province (2012FFB05101), the Self-Determined and Innovative Research Funds of SKLWUT and Wuhan University of Technology (2013-PY-3), the Fundamental Research Funds for the Central Universities (WUT: 2013-IV-089), the Top Talents Lead Cultivation Project of Hubei Province, and the Subject Leadership Project of Wuhan City (201150530145).

Abstract

original image

Get your motor running: A hemocompatible Mg/Pt Janus micromotor is propelled by hydrogen bubbles generated by the magnesium–water reaction (see picture). Aqueous NaHCO3 reacts with the Mg(OH)2 passivation layer on the Mg surface to form water-soluble MgCO3 and expose the active metal. Since the micromotor is biocompatible, it has potential applications in drug delivery and cell separation.

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