A stretchable strain sensor based on a metal nanoparticle thin film for human motion detection
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- 13 August 2014
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Nanoscale
- Vol. 6 (20), 11932-11939
- https://doi.org/10.1039/c4nr03295k
Abstract
Wearable strain sensors for human motion detection are being highlighted in various fields such as medical, entertainment and sports industry. In this paper, we propose a new type of stretchable strain sensor that can detect both tensile and compressive strains and can be fabricated by a very simple process. A silver nanoparticle (Ag NP) thin film patterned on the polydimethylsiloxane (PDMS) stamp by a single-step direct transfer process is used as the strain sensing material. The working principle is the change in the electrical resistance caused by the opening/closure of micro-cracks under mechanical deformation. The fabricated stretchable strain sensor shows highly sensitive and durable sensing performances in various tensile/compressive strains, long-term cyclic loading and relaxation tests. We demonstrate the applications of our stretchable strain sensors such as flexible pressure sensors and wearable human motion detection devices with high sensitivity, response speed and mechanical robustness.Keywords
This publication has 32 references indexed in Scilit:
- Estimation of human trunk movements by wearable strain sensors and improvement of sensor’s placement on intelligent biomedical clothesBioMedical Engineering OnLine, 2012
- Highly stretchable electric circuits from a composite material of silver nanoparticles and elastomeric fibresNature Nanotechnology, 2012
- Fabric pressure sensor array fabricated with die-coating and weaving techniquesSensors and Actuators A: Physical, 2012
- Bendable Inorganic Thin-Film Battery for Fully Flexible Electronic SystemsNano Letters, 2012
- Real-time sweat pH monitoring based on a wearable chemical barcode micro-fluidic platform incorporating ionic liquidsSensors and Actuators B: Chemical, 2012
- Wavy Ribbons of Carbon Nanotubes for Stretchable ConductorsAdvanced Functional Materials, 2012
- Highly Flexible, Printed Alkaline Batteries Based on Mesh‐Embedded ElectrodesAdvanced Materials, 2011
- Flexible humidity sensor in a sandwich configuration with a hydrophilic porous membraneSensors and Actuators B: Chemical, 2009
- A flexible and wearable glucose sensor based on functional polymers with Soft-MEMS techniquesBiosensors and Bioelectronics, 2006
- High‐Conductivity Elastomeric ElectronicsAdvanced Materials, 2004