The future of contact lenses

Apr 18, 2022 (Nanowerk Spotlight) What makes contact lenses so attractive for the development of all kinds of biosensors is the fact that they swim on a film of tears – and tear fluid, along with sweat and saliva, has tremendous potential for noninvasive monitoring biological signals because it contains...

Charging underwater and body-implanted electronic devices using ultrasonic waves

Apr 18, 2022 (Nanowerk News) As population ages and with the advancements in medical technology, the number of patients using implanted electronic devices, such as artificial pacemakers and defibrillators, is increasing worldwide. Currently, the batteries of body-implanted devices are replaced by an incision surgery, which may lead to health complications....

Visualizing spin angular momentum in water waves

Apr 18, 2022 (Nanowerk News) Water waves can be used to visualize fundamental concepts, such as spin angular momentum, that arise in relativistic field theory, RIKEN physicists have shown (Science Advances, "Field theory spin and momentum in water waves"). This will help to provide new insights into very different wave...