New ink to make electronic apparel a reality

By Gizbot Bureau

University of Tokyo researchers have developed a new ink that can be printed on textiles in a single step to form highly conductive and stretchable connections. This functional ink will enable electronic apparel such as sportswear and underwear incorporating sensing devices for measuring a range of biological indicators such as heart rate and muscle contraction.

New ink to make electronic apparel a reality

Using this ink, the researchers created a wrist-band muscle activity sensor by printing an elastic conductor on a sportswear material and combining it with an organic transistor amplifier circuit.

SEE ALSO: Indian-origin boy working with Microsoft for Braille Printer to launch in November

This sensor can measure muscle activity by detecting muscle electrical potentials over an area of 4x4 square cms with nine electrodes placed two centimetres apart in a 3x3 grid.

"Our team aims to develop comfortable wearable devices. This ink was developed as part of this endeavour," said lead researcher professor Takao Someya.

"The biggest challenge was obtaining high conductivity and stretchability with a simple one-step printing process."

Current printed electronics, such as transistors, light emitting diodes and solar panels can be printed on plastic or paper substrates but these substrates tend to be rigid or hard.

However, it has proved difficult to make an ink that is both highly conductive and elastic without a complicated multi-step printing process.

The new ink is comprised of silver flakes, organic solvent, fluorine rubber and fluorine surfactant and exhibits high conductivity even when it is stretched to more than three times its original length.

"We were able to achieve this by use of a surfactant that allowed the silver flakes to self-assemble at the surface of the printed pattern, ensuring high conductivity," Someya said.

Source: IANS

Most Read Articles
301 Moved Permanently

301 Moved Permanently


Read More About: printer wearable research

Best Phones

Get Instant News Updates
Notification Settings X
Time Settings
Clear Notification X
Do you want to clear all the notifications from your inbox?
Yes No
Settings X
We use cookies to ensure that we give you the best experience on our website. This includes cookies from third party social media websites and ad networks. Such third party cookies may track your use on Gizbot sites for better rendering. Our partners use cookies to ensure we show you advertising that is relevant to you. If you continue without changing your settings, we'll assume that you are happy to receive all cookies on Gizbot website. However, you can change your cookie settings at any time. Learn more