New power-efficient, lens-based semiconductor chips could help rein in the enormous power draw of AI systems.

How can we make our homes more energy-efficient and resilient to renewable energy fluctuations? A new study in Engineering presents a smart control framework for residential energy systems, combining advanced prediction and flexible control to optimize energy use and reduce costs. Discover how this innovative approach could transform home energy management.

For most broken bones, bone cells regrow on their own while patients wear a cast or brace to keep the injury steady. But for complex or severe fractures, surgeons may intervene by placing grafts or scaffolds made of biocompatible materials, or by using metal fixation devices to ensure proper bone healing and alignment. Collaborating with orthopedic surgeons, a team led by biomedical engineering researchers at Penn State created CitraBoneQMg, an implantable biodegradable scaffold to support bone regrowth made by combining magnesium and glutamine with citric acid. They published research on their implant, for which they filed a U.S. patent application, in Science Advances.

Climate-smart agricultural practices – like no-till treatments, cover-crop utilization and residue retention – can help promote carbon sequestration in soil and reduce greenhouse gas emissions, according to a new study that uses a combination of models – rather than just one – to provide a more realistic range of outcomes and to highlight the shortcomings of individual models.

The National Institute for Materials Science (NIMS), in collaboration with Seikei University, has successfully enhanced the power output of lithium-air batteries, which are attracting attention as next-generation batteries. By developing a highly porous electrode made of carbon nanotubes, the team achieved a tenfold increase in output current. The lithium-air battery developed in this study not only has extremely high energy density compared to lithium-ion batteries but also significantly improved power performance. As a result, it is now able to supply the power required for hovering small drones, making significant improvements in flight duration feasible. These results were published online in the Journal of Power Sources on February 9, 2025.