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Magnetic Janus origami robot for cross-scale droplet omni-manipulation

Author

Listed:
  • Shaojun Jiang

    (University of Science and Technology of China
    The University of Hong Kong)

  • Bo Li

    (University of Science and Technology of China)

  • Jun Zhao

    (Chinese Academy of Sciences)

  • Dong Wu

    (University of Science and Technology of China)

  • Yiyuan Zhang

    (The University of Hong Kong)

  • Zhipeng Zhao

    (The University of Hong Kong)

  • Yiyuan Zhang

    (University of Science and Technology of China)

  • Hao Yu

    (University of Science and Technology of China)

  • Kexiang Shao

    (University of Science and Technology of China)

  • Cong Zhang

    (University of Science and Technology of China)

  • Rui Li

    (University of Science and Technology of China)

  • Chao Chen

    (University of Science and Technology of China)

  • Zuojun Shen

    (University of Science and Technology of China)

  • Jie Hu

    (University of Science and Technology of China)

  • Bin Dong

    (University of Science and Technology of China)

  • Ling Zhu

    (Chinese Academy of Sciences)

  • Jiawen Li

    (University of Science and Technology of China)

  • Liqiu Wang

    (The Hong Kong Polytechnic University)

  • Jiaru Chu

    (University of Science and Technology of China)

  • Yanlei Hu

    (University of Science and Technology of China)

Abstract

The versatile manipulation of cross-scale droplets is essential in many fields. Magnetic excitation is widely used for droplet manipulation due to its distinguishing merits. However, facile magnetic actuation strategies are still lacked to realize versatile multiscale droplet manipulation. Here, a type of magnetically actuated Janus origami robot is readily fabricated for versatile cross-scale droplet manipulation including three-dimensional transport, merging, splitting, dispensing and release of daughter droplets, stirring and remote heating. The robot allows untethered droplet manipulation from ~3.2 nL to ~51.14 μL. It enables splitting of droplet, precise dispensing (minimum of ~3.2 nL) and release (minimum of ~30.2 nL) of daughter droplets. The combination of magnetically controlled rotation and photothermal properties further endows the robot with the ability to stir and heat droplets remotely. Finally, the application of the robot in polymerase chain reaction (PCR) is explored. The extraction and purification of nucleic acids can be successfully achieved.

Suggested Citation

  • Shaojun Jiang & Bo Li & Jun Zhao & Dong Wu & Yiyuan Zhang & Zhipeng Zhao & Yiyuan Zhang & Hao Yu & Kexiang Shao & Cong Zhang & Rui Li & Chao Chen & Zuojun Shen & Jie Hu & Bin Dong & Ling Zhu & Jiawen , 2023. "Magnetic Janus origami robot for cross-scale droplet omni-manipulation," Nature Communications, Nature, vol. 14(1), pages 1-12, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-41092-1
    DOI: 10.1038/s41467-023-41092-1
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    References listed on IDEAS

    as
    1. Sukyoung Won & Hee Eun Lee & Young Shik Cho & Kijun Yang & Jeong Eun Park & Seung Jae Yang & Jeong Jae Wie, 2022. "Multimodal collective swimming of magnetically articulated modular nanocomposite robots," Nature Communications, Nature, vol. 13(1), pages 1-11, December.
    2. Jianqiang Zhang & Xuejiao Wang & Zhaoyue Wang & Shangfa Pan & Bo Yi & Liqing Ai & Jun Gao & Frieder Mugele & Xi Yao, 2021. "Wetting ridge assisted programmed magnetic actuation of droplets on ferrofluid-infused surface," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
    3. Yoonho Kim & Hyunwoo Yuk & Ruike Zhao & Shawn A. Chester & Xuanhe Zhao, 2018. "Printing ferromagnetic domains for untethered fast-transforming soft materials," Nature, Nature, vol. 558(7709), pages 274-279, June.
    4. Wenqi Hu & Guo Zhan Lum & Massimo Mastrangeli & Metin Sitti, 2018. "Small-scale soft-bodied robot with multimodal locomotion," Nature, Nature, vol. 554(7690), pages 81-85, February.
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