Wafer lens changes X-ray beam size by more than 3,400 times
Peer-Reviewed Publication
Updates every hour. Last Updated: 27-Jun-2025 17:11 ET (27-Jun-2025 21:11 GMT/UTC)
A Nagoya University team has overcome one of the key limitations of X-ray technology by making the mirror using only a single-crystal piezoelectric thin wafer instead of the usual two-part structure. Using this technique, they changed X-ray beam size by more than 3,400 times. This improved dynamic range massively improves both imaging and analysis, improving the efficiency of advanced techniques and massively enhancing workflows.
Researchers at the University of Tokyo have demonstrated that the strength of synaptic connections in the cerebral cortex varies during sleep, influenced by synaptic learning rules and neuronal activity. Using simulations, they identified conditions under which “sleep learning” may occur. These findings could deepen our understanding of the relationship between sleep and learning/memory and help elucidate the mechanisms of brain disorders linked to sleep disturbances.
A new fossil discovery technique reveals that squids originated and rapidly became abundant, diverse, and dominant in the oceans 100 million years ago, reshaping our understanding of ancient marine ecosystems.
Researchers at the Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, report in Small, a weekly peer-reviewed scientific journal covering nanotechnology, published by Wiley-WCH, Germany, how short peptides self-assemble linearly on atomically-thick solid surfaces, such as graphite and MoS2. The research addresses a longstanding challenge in materials science: understanding the complex, sequence-specific interactions between peptides and solid substrates, and the critical role of local hydration structures in guiding nanoarchitecture formation. This work offers new strategies for integrating biomolecules with advanced materials in future bioelectronics and sensor devices.
Nanoparticles (NPs), materials with sizes ranging from 10 to 1,000 nm, are increasingly utilized as drug-delivery systems and in medical diagnosis. However, the impact of NPs on the structure and function of biological macromolecules like proteins remains poorly understood. Now, a recent study by researchers from Tokyo University of Science, Japan, reveals the changes in the protein structure of bovine serum albumin during interaction with different sizes of silica NPs.
Exciplex upconversion-type organic light-emitting devices (ExUC-OLEDs) can emit light at less than half the voltage needed for conventional OLEDs, but their development remained limited by strict requirements for compatible donor and acceptor materials. Now, researchers from Japan have introduced a nanometer-thin spacer layer, boosting blue light output by 77-fold compared to previously incompatible materials. With a greater choice of materials, this design opens doors to energy-efficient OLEDs for a wide range of uses.