Untethered micro-robotic coding of three-dimensional material composition
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CitationTasoglu, S., E. Diller, S. Guven, M. Sitti, and U. Demirci. 2014. “Untethered micro-robotic coding of three-dimensional material composition.” Nature communications 5 (1): 3124. doi:10.1038/ncomms4124. http://dx.doi.org/10.1038/ncomms4124.
AbstractComplex 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. Herein, 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.
Citable link to this pagehttp://nrs.harvard.edu/urn-3:HUL.InstRepos:12717525
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