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Untethered micro-robotic coding of three-dimensional material composition

Author

Listed:
  • S. Tasoglu

    (Bio-Acoustic MEMS in Medicine (BAMM) Laboratory, Brigham and Women’s Hospital, Harvard Medical School)

  • E. Diller

    (Carnegie Mellon University)

  • S. Guven

    (Bio-Acoustic MEMS in Medicine (BAMM) Laboratory, Brigham and Women’s Hospital, Harvard Medical School)

  • M. Sitti

    (Carnegie Mellon University)

  • U. Demirci

    (Bio-Acoustic MEMS in Medicine (BAMM) Laboratory, Brigham and Women’s Hospital, Harvard Medical School
    Harvard-MIT Health Sciences and Technology)

Abstract

Complex functional materials with three-dimensional micro- or nano-scale dynamic compositional features are prevalent in nature. However, the generation of three-dimensional functional materials composed of both soft and rigid microstructures, each programmed by shape and composition, is still an unsolved challenge. Here we describe a method to code complex materials in three-dimensions with tunable structural, morphological and chemical features using an untethered magnetic micro-robot remotely controlled by magnetic fields. This strategy allows the micro-robot to be introduced to arbitrary microfluidic environments for remote two- and three-dimensional manipulation. We demonstrate the coding of soft hydrogels, rigid copper bars, polystyrene beads and silicon chiplets into three-dimensional heterogeneous structures. We also use coded microstructures for bottom-up tissue engineering by generating cell-encapsulating constructs.

Suggested Citation

  • S. Tasoglu & E. Diller & S. Guven & M. Sitti & U. Demirci, 2014. "Untethered micro-robotic coding of three-dimensional material composition," Nature Communications, Nature, vol. 5(1), pages 1-9, May.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms4124
    DOI: 10.1038/ncomms4124
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    Cited by:

    1. Xiong Yang & Rong Tan & Haojian Lu & Toshio Fukuda & Yajing Shen, 2022. "Milli-scale cellular robots that can reconfigure morphologies and behaviors simultaneously," Nature Communications, Nature, vol. 13(1), pages 1-11, December.
    2. K. S. Vikrant & G. R. Jayanth, 2022. "Diamagnetically levitated nanopositioners with large-range and multiple degrees of freedom," Nature Communications, Nature, vol. 13(1), pages 1-11, December.

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