Journal
APPLIED PHYSICS EXPRESS
Volume 10, Issue 8, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.7567/APEX.10.087201
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Funding
- Tateishi Science and Technology Foundation
- Institute of Advanced Active Aging Research, Waseda University
- Leading Graduate Program in Science and Engineering, Waseda University from MEXT, Japan
- Graduate Program for Embodiment Informatics, Waseda University from MEXT, Japan
- JSPS KAKENHI from MEXT, Japan
- MEXT, Japan [16J07140]
- Precursory Research for Embryonic Science and Technology (PRESTO) from Japan Science and Technology Agency (JST) [JPMJPR152A]
- Mitsubishi Materials Research Grant
- Noguchi Institute
- Tanaka Kikinzoku Memorial Foundation
- Grants-in-Aid for Scientific Research [15H05355, 17J10546, 16J07140] Funding Source: KAKEN
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To minimize the interference that skin-contact strain sensors cause natural skin deformation, physical conformability to the epidermal structure is critical. Here, we developed an ultrathin strain sensor made from poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) inkjet-printed on a polystyrene-polybutadiene-polystyrene (SBS) nanosheet. The sensor, whose total thickness and gauge factor were similar to 1 mu m and 0.73 +/- 0.10, respectively, deeply conformed to the epidermal structure and successfully detected the small skin strain (similar to 2%) while interfering minimally with the natural deformation of the skin. Such an epidermal strain sensor will open a new avenue for precisely detecting the motion of human skin and artificial soft-robotic skin. (C) 2017 The Japan Society of Applied Physics
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