Single metalens focuses all colors of the rainbow in one point

Metalenses — flat surfaces that use nanostructures to focus light — promise to revolutionize optics by replacing the bulky, curved lenses currently used in optical devices with a simple, flat surface. But, these metalenses have remained limited in the spectrum of light they can focus well. Now a team of researchers at the Harvard has … Continue reading “Single metalens focuses all colors of the rainbow in one point”

MIT Engineers create Nanobionic Light-Emitting Plants that can glow like a lamp

Imagine that instead of switching on a lamp when it gets dark, you could read by the light of a glowing plant on your desk. MIT engineers have taken a critical first step toward making that vision a reality. By embedding specialized nanoparticles into the leaves of a watercress plant, they induced the plants to … Continue reading “MIT Engineers create Nanobionic Light-Emitting Plants that can glow like a lamp”

3-D-printed device builds better nanofibers

A 3-D-printed manufacturing device can extrude fibers that are only 75 nanometers in diameter, or one-thousandth the width of a human hair. Meshes made from fibers with nanometer-scale diameters have a wide range of potential applications, including tissue engineering, water filtration, solar cells, and even body armor. But their commercialization has been hampered by inefficient … Continue reading “3-D-printed device builds better nanofibers”

New nanomaterial can extract hydrogen fuel from seawater

It’s possible to produce hydrogen to power fuel cells by extracting the gas from seawater, but the electricity required to do it makes the process costly. UCF researcher Yang Yang has come up with a new hybrid nanomaterial that harnesses solar energy and uses it to generate hydrogen from seawater more cheaply and efficiently than … Continue reading “New nanomaterial can extract hydrogen fuel from seawater”

Scientists discover genes are controlled by ‘nano footballs’

Research at the University of York has revealed that genes are controlled by ‘nano footballs’ – structures that look like footballs but 10 million times smaller than the average ball. By placing tiny glowing probes on transcription factors – special chemicals inside cells which control whether a gene is switched ‘on’ or ‘off’ – researchers … Continue reading “Scientists discover genes are controlled by ‘nano footballs’”