Artificial carbon fixation is a promising pathway for achieving the carbon cycle and environment remediation. However, the sluggish kinetics of oxygen evolution reaction (OER) and poor selectivity of CO₂ reduction seriously limited the overall conversion efficiencies of solar energy to chemical fuels. Herein, we demonstrated a facile and feasible strategy to rationally regulate the coordination environment and electronic structure of surface-active sites on both photoanode and cathode. More specifically, the defect engineering has been employed to reduce the coordination number of ultrathin FeNi catalysts decorated on BiVO₄ photoanodes, resulting in one of the highest OER activities of 6.51 mA cm⁻² (1.23 V_RHE, AM 1.5G). Additionally, single-atom cobalt (II) phthalocyanine anchoring on the N-rich carbon substrates to increase Co–N coordination number remarkably promotes CO₂ adsorption and activation for high selective CO production. Their integration achieved a record activity of 109.4 μmol cm⁻² h⁻¹ for CO production with a faradaic efficiency of > 90%, and an outstanding solar conversion efficiency of 5.41% has been achieved by further integrating a photovoltaic utilizing the sunlight (> 500 nm).

Recently, Prof. Andrea Alù from the City University of New York and Dr. Guangwei Hu from Nanyang Technological University in Singapore summarized previous representative work in the field of terahertz topologies and reconfigurable metamaterial devices, discussed design and integration methods for existing reconfigurable terahertz topology platforms, and explored potential avenues for future research and development. The findings were published as the cover paper titled “Topological and Reconfigurable Terahertz Metadevices” in Research (Research, 2025 DOI: 10.34133/research.0882).

As artificial intelligence (AI) and smart gadgets become more common, our need for reliable power sources grows. Renewable energy options like solar and wind are great, but they depend on specific conditions. A research team led by Professor Dong-Myeong Shin from the Department of Mechanical Engineering at the University of Hong Kong (HKU) has developed a novel moisture-activated electricity generator (MEG) that offers a fresh, eco-friendly way to generate electricity — just from moisture in the air.

Anthocyanins are essential plant pigments that determine fruit coloration and contribute to stress protection and human nutrition. 

White-skinned grapes were long believed to originate from a single mutation event, but new genomic evidence overturns this assumption. 

Increased extracellular matrix (ECM) stiffness, a hallmark of risk in cardiovascular disease (CVD), is closely associated with inflammation triggered by immune cell infiltration in the vessel wall.

With the rapid revolution in super-resolution microscopy, the resolution of far-field optical microscopy has entered the sub-nanometer era, providing new insights into macromolecules in vitro and in situ.