Journal
MATTER
Volume 1, Issue 1, Pages 205-218Publisher
CELL PRESS
DOI: 10.1016/j.matt.2019.03.011
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Funding
- Samsung Electronics
- SLAC National Accelerator Laboratory
- US Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-76SF00515]
- Office of Science, Office of Basic Energy Sciences of the US Department of Energy [DE-AC02-05CH11231]
- National Science Scholarship (A*STAR, Singapore)
- Swiss National Science Foundation [P2ELP2_155355]
- Department of Energy Basic Science (USA) [DE-SC0016523]
- Stanford ChEM-H Chemistry/Biology Interface Predoctoral Training Program
- National Institute of General Medical Sciences of theNational Institutes of Health [T32GM120007]
- National Science Foundation [CMMI-1553638]
- U.S. Department of Energy (DOE) [DE-SC0016523] Funding Source: U.S. Department of Energy (DOE)
- Swiss National Science Foundation (SNF) [P2ELP2_155355] Funding Source: Swiss National Science Foundation (SNF)
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Advances in stretchable conductors have been one of the main driving forces behind the realization of wearable and epidermal electronics. However, retaining constant strain-property relationships under varying strain and strain rate remains a challenge. Here, we demonstrate a 3D structuring approach toward strain-accommodating, biocompliant conductors. In contrast to previous stretchable conductors, this method leads to polymeric materials with conductance that has zero dependence on (1) both tensile and compressive strain over an 80% strain range, and (2) strain rate from 2.5%/min to 2,560%/min. Their Young's moduli can be controllably tuned between 10 and 300 kPa. In addition, these conductors are ultra-lightweight and can be molded into virtually any shape and size. Their properties mimic the dynamic and softness of biological systems, rendering this a versatile platform for designing electronic materials that can potentially form intimate interfaces with humans.
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