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dc.contributor.authorTai, Yanlong
dc.contributor.authorMulle, Matthieu
dc.contributor.authorVentura, Isaac Aguilar
dc.contributor.authorLubineau, Gilles
dc.date.accessioned2016-01-19T14:45:37Z
dc.date.available2016-01-19T14:45:37Z
dc.date.issued2015
dc.identifier.citationTai Y, Mulle M, Aguilar Ventura I, Lubineau G (2015) A highly sensitive, low-cost, wearable pressure sensor based on conductive hydrogel spheres. Nanoscale 7: 14766–14773. Available: http://dx.doi.org/10.1039/c5nr03155a.
dc.identifier.issn2040-3364
dc.identifier.issn2040-3372
dc.identifier.pmid26288336
dc.identifier.doi10.1039/c5nr03155a
dc.identifier.urihttp://hdl.handle.net/10754/594304
dc.description.abstractWearable pressure sensing solutions have promising future for practical applications in health monitoring and human/machine interfaces. Here, a highly sensitive, low-cost, wearable pressure sensor based on conductive single-walled carbon nanotube (SWCNT)/alginate hydrogel spheres is reported. Conductive and piezoresistive spheres are embedded between conductive electrodes (indium tin oxide-coated polyethylene terephthalate films) and subjected to environmental pressure. The detection mechanism is based on the piezoresistivity of the SWCNT/alginate conductive spheres and on the sphere-electrode contact. Step-by-step, we optimized the design parameters to maximize the sensitivity of the sensor. The optimized hydrogel sensor exhibited a satisfactory sensitivity (0.176 ΔR/R0/kPa-1) and a low detectable limit (10 Pa). Moreover, a brief response time (a few milliseconds) and successful repeatability were also demonstrated. Finally, the efficiency of this strategy was verified through a series of practical tests such as monitoring human wrist pulse, detecting throat muscle motion or identifying the location and the distribution of an external pressure using an array sensor (4 × 4). © 2015 The Royal Society of Chemistry.
dc.publisherRoyal Society of Chemistry (RSC)
dc.titleA highly sensitive, low-cost, wearable pressure sensor based on conductive hydrogel spheres
dc.typeArticle
dc.contributor.departmentComposite and Heterogeneous Material Analysis and Simulation Laboratory (COHMAS)
dc.contributor.departmentMechanical Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalNanoscale
kaust.personTai, Yanlong
kaust.personMulle, Matthieu
kaust.personVentura, Isaac Aguilar
kaust.personLubineau, Gilles


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