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A new review in Discover Sensors finds that nanomaterial-enabled biosensors are advancing continuous, real-time glucose monitoring from sweat, saliva, tears, and interstitial fluid toward precision diabetes therapy.
Wollongong-based online news outlet covering Australia and beyond. If you have anything newsworthy - a story, video or picture to share with us, please email us. Enzymes are the molecular tools of life. They accelerate chemical…
Real-time imaging reveals how tiny structural changes inside layered nanochannels track shifts in ionic current and device behavior. A recent study in the journal Nature Materials reveals the mechanical origin of ionic memory in two-dimensional (2D) nanochannels. By combining optical imaging with electrical measurements, the researchers demonstrate that sufficiently large applied voltages can trigger the formation or enlargement of liquid-filled blisters that alter channel geometry and ion transport. The results establish electromechanical coupling as a mechanism for ionic memory in the devices studied and offer new strategies for developing reliable nanofluidic memristors for ion-based information processing. Some studies have suggested that ion pairing or polyelectrolyte formation could drive memory effects in channels assembled from layered materials. But researchers have lacked…
Osmotic energy, often referred to as blue energy, is an emerging method for producing renewable electricity by harnessing the natural mixing of saltwater and freshwater. When these two types of water meet, ions from the saltwater…
An asymmetrically coordinated zinc single-atom catalyst degrades antibiotics in water while converting the pollutants' own electrons into hydrogen peroxide.
A new hydrogen-producing catalyst matched the performance of a commercial platinum catalyst while using 75% less precious metal in tests. The design places just a few ruthenium atoms together so that more of the valuable material can participate in the reaction. The work could help lower one of the costs of producing green hydrogen, which uses renewable electricity to split water. It also shows why spreading metal atoms as far apart as possible is not always the best approach. Researchers led by the Korea Advanced Institute of Science and Technology described the catalyst in Nature Communications. The results come from experimental water-electrolysis equipment, with larger-scale and longer-term validation still needed before commercial savings can be established. Electrolysis separates water into hydrogen and oxygen. Catalysts help the reactions proceed efficiently, but the…