Nanotechnology Spotlight – Latest Articles

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Showing Spotlights 9 - 16 of 21 in category Textile, Wearable Computing (newest first):

 

A stretchable far-field communication antenna far wearable electronics

stretchable_antennaThe age of wearable electronics is upon us as witnessed by the fast growing array of smart watches, fitness bands and other advanced, next-generation health monitoring devices such as electronic stick-on tattoos. In order for these wearable sensor devices to become fully integrated into sophisticated monitoring systems, they require wireless interfaces to external communication devices such as smartphones. This requires far-field communication systems that, like the sensor systems, perform even under extreme deformations and during extended periods of normal daily activities.

Oct 9th, 2015

Interwoven solar cells turn T-shirt into a power textile

woven_solar_cellNew solar cell technology allows your T-shirt to generate power from its interwoven solar cell wires. Researchers have developed a novel efficient wire-shaped polymer solar cell by incorporating a thin layer of titania nanoparticles between the photoactive material and electrode. An aligned carbon nanotube fiber enabled high flexibility and stability of the resulting polymer solar cell. These miniature polymer solar cell wires, when woven into textiles, can serve as a power source.

Apr 3rd, 2014

Graphene yarns facilitate energy storage textiles

graphene_yarnResearchers report the fabrication of flexible, durable, and self-assembled graphene textile electrodes for supercapacitors using a novel wet-spinning approach of ultra large graphene oxide liquid crystals followed by heat-treatment to obtain graphene fibers. The key to producing such fibers and yarns is to preserve the large sheet size even after the reduction of GO while simultaneously maintaining a high interlayer spacing in between graphene sheets. These graphene yarns could lead the way to the realization of powerful next-generation multifunctional renewable wearable energy storage systems.

Mar 7th, 2014

Wearable textile battery can be recharged by sunlight

flexible_solar_cellGoing hand in hand with the development of wearable electronic textiles, researchers are also pushing the development of wearable and flexible energy storage to power those e-textiles. Researchers have now developed wearable textile batteries that can be integrated with flexible solar cells and thus be recharged by solar energy. The team found unconventional materials for all of the key battery components and integrated them into a fully wearable battery.

Nov 8th, 2013

Fabricating e-textiles with reduced graphene oxide

electronic_textileThe future of your clothes will be electronic. Not only will electronic devices be embedded on textile substrates, but an electronics device or system could become the fabric itself. These electronic textiles will have the revolutionary ability to sense, compute, store, emit, and move - think biomedical monitoring functions or new man-machine interfaces, not to mention game controllers - while leveraging an existing low-cost textile manufacturing infrastructure. In new work, a group of scientists from Korea have now reported novel method for the fabrication of conductive, flexible, and durable graphene textiles wrapped with reduced graphene oxide.

Oct 29th, 2013

Nanotechnology T-Shirt to replace batteries? Towards wearable energy storage

carbon_nanotube_fiberIn new work, researchers have demonstrated that flexible cotton threads can be used as a platform to fabricate a cable-type supercapacitor. Wearable electronics will go far beyond just very small electronic devices or wearable, flexible computers. Not only will these devices be embedded in textile substrates but an electronics device or system could ultimately become the fabric itself. Supercapacitors with a cable-type architecture could lead to flexible energy storage devices that can remove traditional restriction and achieve a subversive technology that could open up a path for design innovation.

Aug 29th, 2013

Charging your cell phone with your T-shirt

t-shirtThe future of electronics will be flexible. Not only will you be able to roll up your iPads and smart phones like a piece of paper, electronic devices will be invisibly embedded in the textiles you wear from baby diapers to doctors' surgical gloves. To realize such devices, equally flexible power sources need to be integrated with the electronic devices. Textile yarns are an obvious choice. Researchers are already pushing ahead with electronic textiles (e-textiles), for instance by coating regular cotton yarns with single-walled and multi-walled carbon nanotubes and polyelectrolytes, thus making cotton fibers conductive. Addressing the power source issue, researchers have now found a simple way to provide cotton with a new function - storing energy.

Jun 25th, 2012

Nanotechnology textiles

cloth_rolls'Nano Textiles' can be produced by a variety of methods. The key difference among them is whether synthetic nanoparticles are integrated into the fibres or the textile, or are applied as a coating on the surface, and/or whether nanoparticles are added to the nanoscale fibres or coating. This article clarifies nano-textile manufacturing processes and application areas, and gives an overview about the potential effects on the environment and health. Many questions remain unanswered, however, there is a need for considerably more research not only for product development but also into the usefulness and risks which nano-textiles give rise to. The open questions have prompted the Swiss Textile Federation to undertake a joint project with the Swiss Federal Laboratories for Materials Science and Technology (EMPA) entitled 'Nanosafe Textiles' and to initiate discussions on the topic.

Dec 16th, 2010