Biochar is often described as a stable form of carbon that can improve soils, store carbon, and help immobilize pollutants. But once biochar is applied to farmland, contaminated sites, or other soils, it does not remain unchanged. A new review published in Biochar examines how biochar weathers over time and what those changes mean for soil health, carbon sequestration, and soil remediation.

Phosphorus is essential for crop growth, but using it efficiently remains one of agriculture’s long-standing challenges. Farmers often apply large amounts of phosphorus fertilizer to maintain yields, yet only a small fraction is taken up by crops. The rest can become locked in soil or escape into waterways, contributing to nutrient pollution and eutrophication.

A joint research team from NIMS, the Institute of Science Tokyo, and Kochi University of Technology discovered high-performance catalysts capable of significantly reducing "boil-off losses," which had been a long-standing issue in liquid hydrogen storage and transportation. These composite catalysts, in which metallic nanoparticles, such as iron, are supported on silicon dioxide (silica) or other low-cost oxide, demonstrate significantly superior performance compared to conventional iron oxide-based catalysts. In this research, the team demonstrated a new mechanism where ortho to para hydrogen conversion is promoted, not by magnetism as in conventional mainstream mechanisms, but by an inhomogeneous electric field on the surface of the catalyst. This research result, which is expected to contribute to a hydrogen energy society, was published in The Journal of Physical Chemistry Letters on March 12, 2026.

Scientists from Wroclaw Medical University and the Wrocław University of Environmental and Life Sciences discovered that the type of tea used in kombucha production strongly affects the drink’s chemistry, aroma, and antioxidant activity. Kombuchas made from green and oolong teas showed the highest antioxidant potential, while each tea created a distinct flavor and chemical profile during fermentation. The researchers emphasize that kombucha is not a single universal product and that further clinical studies are needed to confirm its health effects.

Researchers from Monash University have developed a breakthrough nanoscale circuit that can generate, direct and read light-based information, all on a single chip.

Inspired by the rock-paper-scissors game in ecosystem, researchers have established an active thermal transport model, revealing robust topological temperature localization phenomenon and topological phase transition. This work unveils new physics in non-equilibrium heat transfer and offers a new paradigm for thermal regulation and management.

Despite its high speed and parallel processing ability, optical encryption is vulnerable at the back-end. To address this, researchers developed a programmable dual-band photodetector with a color image encryption scheme, where the detector serves as both detector and decryption key. This detector-dependent security effectively prevents back-end eavesdropping, enabling a new pathway for highly secure optical encryption in information warfare.

Natural polysaccharides with different structural features and closely similar molecular sizes are often isolated together as a mixture using current purification methods and then are identified to be one complex structure. The current purity tests mainly focus on molecular size and ion-exchange property and therefore are weak to identify this impurity risk. Researchers have now developed the existing "enzyme diagnosis" method which usually indicates structure feature to an upgraded "enzyme diagnostic criteria" for purity test in order to expose these hidden mixtures. This new criterion may effectively solve the concern regarding the poor repeatability of polysaccharide structure identification by offering truly pure and much simpler polysaccharides.