Paper electronics could make health care more accessible

November 19, 2014

Flexible electronic sensors based on paper -- an inexpensive material -- have the potential to some day cut the price of a wide range of medical tools, from helpful robots to diagnostic tests. Scientists have now developed a fast, low-cost way of making these sensors by directly printing conductive ink on paper. They published their advance in the journal ACS Applied Materials & Interfaces.

Anming Hu and colleagues point out that because paper is available worldwide at low cost, it makes an excellent surface for lightweight, foldable electronics that could be made and used nearly anywhere. Scientists have already fabricated paper-based point-of-care diagnostic tests and portable DNA detectors. But these require complicated and expensive manufacturing techniques. Silver nanowire ink, which is highly conductive and stable, offers a more practical solution. Hu's team wanted to develop a way to print it directly on paper to make a sensor that could respond to touch or specific molecules, such as glucose.

The researchers developed a system for printing a pattern of silver ink on paper within a few minutes and then hardening it with the light of a camera flash. The resulting device responded to touch even when curved, folded and unfolded 15 times, and rolled and unrolled 5,000 times. The team concluded their durable, lightweight sensor could serve as the basis for many useful applications.
-end-
The American Chemical Society is a nonprofit organization chartered by the U.S. Congress. With more than 161,000 members, ACS is the world's largest scientific society and a global leader in providing access to chemistry-related research through its multiple databases, peer-reviewed journals and scientific conferences. Its main offices are in Washington, D.C., and Columbus, Ohio.

To automatically receive news releases from the American Chemical Society, contact newsroom@acs.org.

Follow us: TwitterFacebook

American Chemical Society

Related Sensors Articles from Brightsurf:

OPD optical sensors that reproduce any color
POSTECH Professor Dae Sung Chung's team uses chemical doping to freely control the colors of organic photodiodes.

Airdropping sensors from moths
University of Washington researchers have created a sensor system that can ride aboard a small drone or an insect, such as a moth, until it gets to its destination.

How to bounce back from stretched out stretchable sensors
Elastic can stretch too far and that could be problematic in wearable sensors.

New mathematical tool can select the best sensors for the job
In the 2019 Boeing 737 Max crash, the recovered black box from the aftermath hinted that a failed pressure sensor may have caused the ill-fated aircraft to nose dive.

Lighting the way to porous electronics and sensors
Researchers from Osaka University have created porous titanium dioxide ceramic thin films, at high temperatures and room temperature.

Russian scientists to improve the battery for sensors
Researchers of Peter the Great St. Petersburg Polytechnic University (SPbPU) approached the creation of a solid-state thin-film battery for miniature devices and sensors.

Having an eye for colors: Printable light sensors
Cameras, light barriers, and movement sensors have one thing in common: they work with light sensors that are already found in many applications.

Improving adhesives for wearable sensors
By conveniently and painlessly collecting data, wearable sensors create many new possibilities for keeping tabs on the body.

Kirigami inspires new method for wearable sensors
As wearable sensors become more prevalent, the need for a material resistant to damage from the stress and strains of the human body's natural movement becomes ever more crucial.

Wearable sensors detect what's in your sweat
A team of scientists at the University of California, Berkeley, is developing wearable skin sensors that can detect what's in your sweat.

Read More: Sensors News and Sensors Current Events
Brightsurf.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.