Nanoparticles

Japanese scientists have created what may be the world’s smallest video game. Using a regular controller, players can control a tiny digital ship, firing nanoscale bullets to push around a physical polystyrene ball just a few microns wide.

Transparent OLED technology has come a long way since early prototypes more than a decade ago, but screens are still a pricey proposition. Korean researchers have developed a 100-inch NTS display for mass production at a tenth of the cost.

Researchers have turned lignin into nanoparticles that can create a transparent coating with antifog properties or a colorful antireflective surface, transforming this abundant waste product into a useful material with diverse applications.

While anti-fog sprays work to a certain extent, warming a glass surface is a better way of keeping it fog-free. A new coating material is designed to do so, and it utilizes light-absorbing gold nanoparticles instead of electricity.

Researchers at Brown University have developed a new way to make super-hard metals, up to four times harder than usual. The team made nanoparticle “building blocks” that could be fused together under pressure, thanks to a chemical treatment.

Ordinarily, epoxies are cured by exposure to either heat or ultraviolet light. Both have their drawbacks, which are nicely avoided by a new epoxy that hardens when passed through a magnetic field to produce a similar bond using a fraction of the energy.

Adding “two-faced” nanoparticles could improve paints and coatings. With one face that attracts water and another that repels it, the particles arranged themselves in a flat layer on a painted surface and could make for paint with unusual properties.

A new type of ultra-thin film with an incredible ability to change color as it is twisted or bent could one day make its way onto robots to give them chameleon-like skin, or into cash as a means of verifying its authenticity.

The colorful glaze on that ceramic mug of yours may look nice, but there's a chance that it could contain toxic substances. US scientists have thus created a safer type of glaze, that incorporates tiny particles of silver and gold.

Goggles, glasses and windshield can fog up if there’s a difference in temperature or humidity. Researchers at ETH Zurich have developed a new anti-fog coating that warms up the surface without needing electricity.

Most solar cells only capture the visible light. Now, researchers at Berkeley Labs have developed a way to use nanoparticles coated in special organic dyes to convert near-infrared light into visible light, which could allow solar cells to harvest more of the spectrum.

Researchers have developed a new technique to make metamaterials with nanoscale structures that can be tuned with strange optical properties. Using DNA-modified gold nanoparticles, the team could change the material's color, opening the door for new sensors or cloaking devices.