Monday, February 22, 2021

Graphene oxide membranes could reduce paper industry energy costs

Paper industry wastewater recycling is among the most energy-intensive chemical processes in the world. Researchers have found a method to engineer membranes made from graphene oxide that allow water to get through it much faster than through conventional membranes and, in the process, can save the paper industry more than 30% in energy costs of water separation.

Polymer film protects from electromagnetic radiation, signal interference

Engineers describe a flexible film using a quasi-one-dimensional nanomaterial filler that combines excellent electromagnetic shielding with ease of manufacture.

CSI Solid-State: The fingerprints of quantum effects

In solid-state physics the precise interactions of electrons are analyzed in meticulous detective work to ultimately gain a better understanding of fundamental physical phenomena.

Silver and gold nanowires open the way to better electrochromic devices

Researchers have developed a new approach with a cost-effective and easy electrode fabrication that is completely ITO-free.

New 'metalens' shifts focus without tilting or moving

The design may enable miniature zoom lenses for drones, cellphones, or night-vision goggles.

A sponge to soak up carbon dioxide in the air

A promising technology under development for negative emissions technologies is carbon capture using a material called a MOF, or metal-organic framework.

Magnetic effect without a magnet

Scientists have made a surprising discovery: an exotic metal made of cerium, bismuth and palladium was examined and a giant Hall effect was found to be produced by the material, in the total absence of any magnetic field.

Concept for a new storage medium

Physicists have proposed an innovative new data storage medium. The technique is based on specific properties of antiferromagnetic materials that had previously resisted experimental examination.

Attachable skin monitors that wick the sweat away

A silicone membrane for wearable devices is more comfortable and breathable thanks to better-sized pores made with the help of citric acid crystals.