A protein in octopus skin is similar to a light-detecting protein found in the eye, enabling the cephalopods' amazing camouflage skills.
They're too tiny to see, but a new form of light-sensitive nanoparticles could flood the world with solar power.
University of Cambridge researchers print two types of retinal cells from adult rats and hope the development could one day contribute to a cure for some types of human blindness.
Biomedical engineers out of Johns Hopkins and Stony Brook say gentle beams of light -- instead of electric jolts -- could be used to treat arrhythmias in the near future.
Researchers find that, at least in rats, when they shine a laser light on a region of the brain associated with impulse control and decision-making, they can turn cocaine-seeking behavior off or on.
The Argus II Retinal Prosthesis System includes an eyeglass-mounted camera, a portable video processing unit, and an array of electrodes implanted onto the retina to allow the patient to detect light and dark.
SiOnyx raises $12.5 million to commercialize semiconductor technology which treats silicon so it can capture more light for solar and imaging applications.
Experiments out of Georgia Tech show that it's possible to use inexpensive components from LCD projectors to control the brains and muscles of tiny organisms.
Device that could scan blood and water for pathogens combines the chip technology found in digital cameras with microfluidics, the science of channeling liquid on a tiny scale.