3D-Structured Stretchable Strain Sensors for Out-of-Plane Force Detection.

Adv Mater 2018 Jun 17;30(26):e1707285. Epub 2018 May 17.

Innovative Centre for Flexible Devices (iFLEX), School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore.

Stretchable strain sensors, as the soft mechanical interface, provide the key mechanical information of the systems for healthcare monitoring, rehabilitation assistance, soft exoskeletal devices, and soft robotics. Stretchable strain sensors based on 2D flat film have been widely developed to monitor the in-plane force applied within the plane where the sensor is placed. However, to comprehensively obtain the mechanical feedback, the capability to detect the out-of-plane force, caused by the interaction outside of the plane where the senor is located, is needed. Herein, a 3D-structured stretchable strain sensor is reported to monitor the out-of-plane force by employing 3D printing in conjunction with out-of-plane capillary force-assisted self-pinning of carbon nanotubes. The 3D-structured sensor possesses large stretchability, multistrain detection, and strain-direction recognition by one single sensor. It is demonstrated that out-of-plane forces induced by the air/fluid flow are reliably monitored and intricate flow details are clearly recorded. The development opens up for the exploration of next-generation 3D stretchable sensors for electronic skin and soft robotics.

Download full-text PDF

Source
http://doi.wiley.com/10.1002/adma.201707285
Publisher Site
http://dx.doi.org/10.1002/adma.201707285DOI Listing
June 2018
13 Reads

Publication Analysis

Top Keywords

stretchable strain
16
strain sensors
12
out-of-plane force
12
soft robotics
8
3d-structured stretchable
8
out-of-plane
5
out-of-plane capillary
4
capillary force-assisted
4
conjunction out-of-plane
4
employing printing
4
force employing
4
printing conjunction
4
self-pinning carbon
4
nanotubes 3d-structured
4
3d-structured sensor
4
carbon nanotubes
4
monitor out-of-plane
4
sensor possesses
4
force-assisted self-pinning
4
needed 3d-structured
4

References

(Supplied by CrossRef)

Tee et al.
Nat. Nanotechnol. 2012

Zhu et al.
Adv. Mater. 2016

Boland et al.
Nat. Mater. 2010

Rus et al.
Nature 2015

White et al.
Nat. Mater. 2015

McEvoy et al.
Science 2015

Wang et al.
Adv. Funct. Mater. 2015

Sekitani et al.
Nat. Mater. 2009

Wegst et al.
Nat. Mater. 2015

Zhu et al.
Small 2014

Lee et al.
Nat. Nanotechol. 2016

Similar Publications