Researchers at Seoul National University have compiled the latest technologies in the field of fabricating stretchable synaptic transistors, a neuromorphic device capable of learning even under deformation. This review introduces materials, manufacturing processes (photopatterning, printing, lamination-and-transfer), and structures (vertical, wave-like, textile) that maintain low-voltage stable operation even under deformation. By clearly identifying remaining technical challenges, such as n-type/bipolar semiconductors, CMOS-compatible patterning, and biocompatibility, it provides a roadmap for developing scalable wearable and neuroprosthetic systems.

High-voltage cycling can quietly degrade LiCoO₂ cathodes, but a new low-dose nanoscale imaging method reveals the precise crystal transformations driving battery performance loss. By combining cepstral matching analysis with scanning nanobeam electron diffraction, researchers achieved nanometer-scale visualization with minimal beam damage. The study uncovered local structural changes at the cathode interface with the electrolyte, providing important clues to how batteries degrade and helping guide the design of longer-lasting, higher-energy lithium-ion batteries for future devices and electric vehicles.

Researchers in China have developed ultra-low voltage optoelectronic polymer memristors capable of dynamic, multifunctional integration for efficient edge computing. Operating at mere millivolt levels, these devices deliver high accuracy in fingerprint recognition, significantly streamlining system architecture and reducing manufacturing costs, paving the way for the next generation of flexible electronics.

The research teams of Professors Yu Tang and Fengjuan Chen from Lanzhou University proposed a new mixed ligand strategy. By introducing complementary building units into covalent organic frameworks (COFs) and systematically regulating their ratios, they achieved synergistic optimization of the four key steps in the photocatalytic hydrogen peroxide synthesis, effectively breaking through the constraints between various performance indicators and significantly improving the overall catalytic efficiency. Studies have shown that the introduction of the DTTA unit significantly broadens the light absorption range and enhances the charge carrier separation ability; while the TA component improves the crystallinity and hydrophilicity of the material, thereby promoting the transport and mass transfer of photogenerated charges. At the optimal ratio, TA/DTTA-2-TMT achieved an H₂O₂ generation rate of 3451 μmol·g^-1·h^-1 in pure water, air and 100 mW·cm^-2 light. This work provides new ideas for the development of high-performance H₂O₂ photocatalysts. The article was published as an open access research article in CCS Chemistry, the flagship journal of the Chinese Chemical Society.

Adding carbon-rich materials such as biochar and hydrochar to farmland soils is often seen as a promising way to fight climate change. But a new study from Finland shows that the type of char used can make a big difference in whether the soil releases or stores greenhouse gases.