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When water freezes into ice or boils into vapor, its properties change dramatically at specific temperatures. These so-called phase transitions are fundamental to understanding materials. But how do such transitions behave in nanomaterials? A team of scientists now presents new insights into the complex nature of phase transitions in magnetic nanomaterials. Their findings reveal the coupling between magnetic and mechanical properties, paving the way for ultra-sensitive sensors.

Physicists have created a new computer code that could speed up the design of the complicated magnets that shape the plasma in stellarators, making the systems simpler and more affordable to build.

Researchers gathered emissions data from hundreds of US cities that either conducted a greenhouse gas emissions inventory, or reported they employed sustainability staff. The cities that conducted an inventory showed a statistically significant reduction in emissions between 2010 and 2015, while those with sustainability staff did not. Little research had previously been done to gauge effects of such measures and show that addressing emissions is meaningful, researchers argue.

Researchers have studied a new method to deliver antibiotics, specifically gentamicin, directly into the bladder tissue to better treat UTIs. They did this by creating nanogels combined with a special peptide (a small protein) that helps the drug get inside the cells where the bacteria are hiding. The results demonstrate that this approach proved highly effective when tested in animal models with UTIs, eliminating over 90% of the bacteria from the bladder.

Tracking targeted drug delivery is often a challenge due to limitations in the current imaging techniques. A recent study reports a breakthrough imaging technique that allows direct and highly sensitive tracking of gold nanoparticles (AuNPs) inside the body. This novel technique, which uses neutron activation of gold, could revolutionize cancer drug delivery by enabling real-time visualization of the gold nanoparticles without external tracers.

Researchers have demonstrated that phosphorene nanoribbons (PNRs) exhibit both magnetic and semiconducting properties at room temperature. The research establishes PNRs as a unique class of low-dimensional materials that challenges conventional views on magnetic semiconductors, and could provide a stepping stone to unlocking new quantum technologies.

Researchers created 'growth printing,' which mimics tree trunks' outward expansion to print polymer parts quickly and efficiently without the molds and expensive equipment typically associated with 3D printing.

Microplastics have been found almost everywhere that scientists have looked for them. Now these bits of plastic -- from 1 to 62 micrometers long -- have been found in the filtered solutions used for medical intravenous (IV) infusions. The researchers estimate that thousands of plastic particles could be delivered directly to a person's bloodstream from a single 8.4-ounce (250-milliliter) bag of infusion fluid.

Where there's water, there are waves. But what if you could bend water waves to your will to move floating objects? Scientists have now developed a technique to merge waves in a water tank to produce complex patterns, such as twisting loops and swirling vortices. Some patterns acted like tweezers or a 'tractor beam' to hold a floating ball in place. Other patterns made the ball spin and move precisely in a circular path. In the future, the technique could be scaled down to precisely move particles the size of cells for experiments, or scaled up to guide boats along a desired path on the water.

Cost, technical performance and environmental impact -- these are the three most important aspects for a new type of LED technology to have a broad commercial impact on society.

Researchers are working on artificial muscles that can keep up with the real thing. They have now developed a method of producing the soft and elastic, yet powerful structures using 3D printing. One day, these could be used in medicine or robotics -- and anywhere else where things need to move at the touch of a button.

Imagine a microscopic locomotive moving back and forth along a track, propelling itself without any external force. At the molecular level, this concept forms the foundation of molecular motors -- intricate systems that could enable advanced materials, targeted drug delivery, and the development of nanoscale robotics.

Researchers have discovered a new method to generate electricity using small plastic beads. By placing these beads close together and bringing them into contact, they generate more electricity than usual. This process, known as triboelectrification, is similar to the static electricity produced when rubbing a balloon against hair.

An international collaboration has shown that additive manufacturing offers a realistic way to build large-scale plastic scintillator detectors for particle physics experiments.

A new strategy for recycling spent lithium-ion batteries is based on a hydrometallurgical process in neutral solution. This allows for the extraction of lithium and other valuable metals in an environmentally friendly, highly efficient, and inexpensive way. The leaching efficiency is improved by a solid-solid reduction mechanism, known as the battery effect, as well as the addition of the amino acid glycine.

Researchers have discovered that water generates an electrical charge up to 10 times greater than previously understood when it moves across a surface. The team observed when a water droplet became stuck on a tiny bump or rough spot, the force built up until it 'jumped or slipped' past an obstacle, creating an irreversible charge that had not been reported before. The new understanding of this phenomenon paves the way for surface design with controlled electrification, with potential applications ranging from improving safety in fuel-holding systems to boosting energy storage and charging rates.

Zeolites, crystalline materials widely used in the petrochemical industry, serve as pivotal catalysts in the production of fine chemicals, with aluminium being the source of active sites within zeolite structures. A research team has revealed the precise location of aluminium atoms in the zeolite framework. This discovery could facilitate the design of more efficient and stable catalysts, aimed at increasing the yield of petrochemical products, achieving efficient renewable energy storage, and controlling air pollution. This advancement will further promote the application of zeolites in relevant fields.

A new study using the largest network of microphones to track birds in the United States is providing crucial insights for managing and restoring fire-prone forests across California's Sierra Nevada region.

Researchers have developed cost-effective and efficient water-splitting catalysts to be used in the eco-friendly production of hydrogen. Catalyst performance surprisingly increases over time.

Researchers combine acoustic monitoring with a neural network to identify fish activity on coral reefs by sound. They trained the network to sort through the deluge of acoustic data automatically, analyzing audio recordings in real time. Their algorithm can match the accuracy of human experts in deciphering acoustical trends on a reef, but it can do so more than 25 times faster, and it could change the way ocean monitoring and research is conducted.