Journal
ADVANCED FUNCTIONAL MATERIALS
Volume 28, Issue 16, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201706666
Keywords
cilia-inspired materials; responsive materials; smart transporting; viscoelastic microspheres
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Funding
- National Basic Research Program of China [2013CB933003]
- Beijing Young Talent Support Program
- 111 project
- Beijing Nova Program
- Beijing Natural Science Foundation [L160003]
- Chinese National Natural Science Foundation [21671012]
- Fundamental Research Funds for the Central Universities
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Anisotropic microstructures are widely used by being cleverly designed to achieve important functions. Mammals' respiratory tract is filled with dense cilia that rhythmically swing back and forth in a unidirectional wave to propel mucus and harmful substances out of the lung through larynx. Inspired by the ciliary structure and motion mechanism of the respiratory tract systems, a viscoelastic microsphere transporting strategy based on integration of airway cilium-like structure and magnetically responsive flexible conical arrays is demonstrated. Under external magnetic fields, the viscoelastic microspheres can be directionally and continuously transported alongside the swing of the cilia-like arrays that contain magnetic particles. This work provides a promising route for the design of advanced medical applications in directional transport of microspheres, drug delivery systems, ciliary dyskinesia treating, and self-cleaning without liquid.
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