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论文题目: |
Programmable micrometer-sized motor array based on live cells |
第一作者: |
Jie SX(解双喜);Wang XD(王晓东);Jiao ND(焦念东);Tung, Steve;Liu LQ(刘连庆) |
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发表刊物: |
LAB ON A CHIP |
发表年度: |
2017 |
卷,期,页: |
17,12,2046-2053 |
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论文摘要: |
Trapping and transporting microorganisms with intrinsic motility are important tasks for biological, physical, and biomedical applications. However, fast swimming speed makes the manipulation of these organisms an inherently challenging task. In this study, we demonstrated that an optoelectrical technique, namely, optically induced dielectrophoresis (ODEP), could effectively trap and manipulate Chlamydomonas reinhardtii (C. reinhardtii) cells swimming at velocities faster than 100 mu m s(-1). Furthermore, live C. reinhardtii cells trapped by ODEP can form a micrometer-sized motor array. The rotating frequency of the cells ranges from 50 to 120 rpm, which can be reversibly adjusted with a fast response speed by varying the optical intensity. Functional flagella have been demonstrated to play a decisive role in the rotation. The programmable cell array with a rotating motion can be used as a bio-micropump to drive the liquid flow in microfludic chips and may shed new light on bio-actuation. |
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