Combining single-wall carbon nanotubes and poly(styrene-b-butadiene-b-styrene) nanosheets, researchers developed a novel bioelectrode material for wearable devices. This innovative material is stretchable, permeable to humidity, and conforms closely to the skin, making it ideal for prolonged use.
Combining single-wall carbon nanotubes and poly nanosheets, researchers developed a novel bioelectrode material for wearable devices. This innovative material is stretchable, permeable to humidity, and conforms closely to the skin, making it ideal for prolonged use. This development addresses critical limitations of current bioelectrode materials, promising more comfortable and effective wearables for healthcare and fitness applications.
"Self-supporting electrodes that are stretchable, permeable to humidity, and conformable to skin surface bumps are required to allow for the natural deformation of skin without restricting body movements," says Horii. Another crucial requirement for bioelectrodes is high water vapor permeability to prevent sweat buildup during exercise. Adding SWCNTs is beneficial as its fibrous network structure improves breathability compared to continuous films. In experiments measuring water vapor transmission rate , researchers found that SWCNT 3rd-SBS exhibited a WVTR of 28,316 g mThe bioelectrode material is also highly resilient for extended use.
"We obtained skin-conformable bioelectrodes with high water vapor permeabilities, which showed comparable performance in sEMG measurements to those of conventional electrodes," concludes Fujie, highlighting the material's promising capabilities for healthcare wearables.
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