Researchers have found a way to turn ordinary paper sheets into electronic control and information input devices that work without a permanent power source.
A team of engineers from Purdue University has developed a highly fluorinated molecule coating that repels water, oil and dust. This omniphobic material allows multiple layers of circuits to be printed on paper, protecting the ink from smearing and erasure..
As a power source, the scientists used vertical pressure sensors that convert energy from contact with the user’s hand into electrical energy. This is quite enough for full autonomous work without a battery..
During the trials, the team demonstrated the technology’s capabilities by transforming an album sheet into a keyboard and music player control panel..
According to the developers, similar solutions can be used in food packaging to check the safety of products or in the covering of parcels to identify the identity of the recipient..
In addition to developing new coatings, researchers are also experimenting with new types of paper. In April, scientists created material from pollen in the form of paper, which changes shape in response to external stimuli.
text: Ilya Bauer, photo and video: FlexiLab Purdue