A multi-institutional research team reviews progress in CO₂-involved organic synthesis over the past five years. By organizing reactions according to C-C, C-N, and C-O bond formation, the review highlights the growing role of photochemistry and electrochemistry in converting CO₂ into value-added organic products.

Optical computing is attracting strong interest because light can carry and process information at extremely high speed while consuming less energy than many electronic approaches. In principle, optical systems can accelerate demanding tasks such as artificial intelligence inference, image processing, scientific simulation, and high-bandwidth signal processing. However, most proposed optical processors still depend on electronic memory to hold intermediate data. Each time information is converted between light and electronics, the system pays a penalty in speed, energy, and complexity.

The commercialization of liquid lithium-ion batteries has revolutionized the consumer electronics industry. However, conventional lithium-ion batteries with graphite anodes and organic electrolytes are approaching their intrinsic performance limits and struggle to meet the growing demands for higher energy density, reliability, and safety in electric vehicles and large-scale energy storage. Solid-state batteries utilizing lithium or sodium metal anodes are considered promising next-generation energy storage solutions. Despite this potential, the formation of dendrites during charge–discharge cycling remains a critical challenge. Dendrite growth can initiate a destructive feedback loop of crack propagation and further dendrite intrusion, ultimately leading to battery failure and performance degradation. Previous studies have predominantly focused on single physical domains, such as electrochemical, stress, or thermal fields. However, such single-physics approach limits the understanding of dendrite evolution under realistic, coupled multiphysics conditions. This review first compares the morphological characteristics of dendrites in liquid and solid-state metal batteries. It then critically examines the key factors and predictive models of dendrite formation, initially from single-physics and subsequently from an integrated multiphysics perspective. Finally, strategies for mitigating dendrite growth via multiphysics field regulation are summarized. By establishing a comprehensive framework that integrates morphology evolution, multiphysics modeling, and suppression strategies, this work provides a foundational theoretical understanding for addressing dendrite formation in solid-state lithium and sodium metal batteries.

As demand for optical communication capacity continues to grow, the 2 µm wavelength region is emerging as a promising new window for future photonic systems. Researchers have developed a high-speed InGaAs/GaAsSb type-II superlattice photodetector that is heterogeneously integrated on silicon via micro-transfer printing. By combining a backside Au reflector with a low-index BCB cavity, the device achieves broadband operation from 0.8 to 2.5 µm and a 57.9% responsivity enhancement at 2 µm, while maintaining 17–18.7 GHz bandwidth and clear 50 Gbps eye diagrams. The work provides a practical route toward broadband, high-speed photodetectors for silicon photonics and next-generation optical interconnects.

A comparative machine learning study of older adults shows that objective mobility tests and contextual assessment variables outperform demographic information alone for distinguishing fallers from non-fallers. When combined with basic demographic information, mobility measures provide strong screening performance with lower assessment burden than more extensive questionnaire-based approaches.