Kim et al., Science 2016
Touchscreens have transformed the way we interact with electronics, enabling the development of elegant handheld devices.
But currently, their screens are limited to a fixed size.
As flexible and wearable electronics are in development, the touchscreens we'll need in the future will have to be both flexible and biocompatible.
In an investigation recently published in Science, researchers have designed an ionic touchscreen that boasts stretchability and biocompatibility, allowing easy integration with the human body.
Hydrogels are soft, water-filled polymer networks; their mechanical properties are similar to those of certain tissues, and they can be made of biocompatible materials.