Category Chemistry/Nanotechnology

Scientists from Nanyang Technological University, Singapore, have designed a device that harvests sunlight to generate clean hydrogen from seawater and simultaneously degrades hydrazine, a highly toxic contaminant from industrial wastewater.

Inspired by leaves, the device directly captures sunlight and converts it into electricity to drive the reaction without the need for external power sources. The innovation is published in Nature Communications.

Two-in-one green solution
To produce green hydrogen from water, an electric current is passed through water between two electrodes, splitting the water molecules into hydrogen and oxygen—a process known as electrolysis.

In electrolysis, ...

The immune system, the body’s defense network against infections and injuries, can sometimes become too active. In these cases, it can produce too many immune mediators, fragments of genetic material or proteins that regulate immune responses.

An excess of these molecules in the bloodstream can cause severe inflammation, sometimes leading to life-threatening medical conditions such as sepsis and acute lung injury. Sepsis is an extreme and life-threatening response to a bacterial, viral or fungal infection...

Researchers at The University of Texas at El Paso have developed a way to 3D-print an essential battery component in nearly any shape. Their innovation could free engineers from the constraints of standard rechargeable battery sizes and allow energy storage to be built directly into the devices the batteries power.

The work, detailed in a study published in Communications Engineering, centers on gel polymer electrolytes, the material inside a battery that carries the ions (the particles that carry the electrical charge) between the electrodes—the two terminals where chemical reactions occur and electric...

While biomethane is flowing into homes across the U.S., Asia and Europe, a renewable replacement for natural gas has yet to reach its full potential in Australia.

New research by University of Melbourne scientists has made it easier for biomethane to be used in heating, cooking and transport.

The team, led by Professor Mohsen Talei, studied key contaminants in biomethane to determine safe concentrations for use in home appliances.

Their findings establish guidelines for how much purification biomethane needs before it can reach the market and provide a clearer pathway for scaling up production and making it available for use.

Gas who?
Biomethane is chemically identical to natural gas...