Soft network composite materials with deterministic and bio-inspired designs

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"Hard and soft structural composites found in biology provide inspiration for the design of advanced synthetic materials. Many examples of bio-inspired hard materials can be found in the literature; far less attention has been devoted to soft systems. Here we introduce deterministic routes to low-modulus thin film materials with stress/strain responses that can be tailored precisely to match the non-linear properties of biological tissues, with application opportunities that range from soft biomedical devices to constructs for tissue engineering. The approach combines a low-modulus matrix with an open, stretchable network as a structural reinforcement that can yield classes of composites with a wide range of desired mechanical responses, including anisotropic, spatially heterogeneous, hierarchical and self-similar designs. Demonstrative application examples in thin, skin-mounted electrophysiological sensors with mechanics precisely matched to the human epidermis and in soft, hydrogel-based vehicles for triggered drug release suggest their broad potential uses in biomedical devices."
Publisher
NATURE PUBLISHING GROUP
Issue Date
2015-03
Language
English
Article Type
Article
Keywords

STRETCHABLE ELECTRONICS; STRUCTURAL HIERARCHY; BIOLOGICAL-MATERIALS; MECHANICS; SKIN; SYSTEMS; INTERCONNECTS; ASSEMBLIES; CIRCUITS; STRESS

Citation

NATURE COMMUNICATIONS, v.6

ISSN
2041-1723
DOI
10.1038/ncomms7566
URI
http://hdl.handle.net/10203/238862
Appears in Collection
EE-Journal Papers(저널논문)
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