SCIENCE CHINA Materials•2026•DOI: 10.1007/s40843-025-3630-2
This study demonstrates a dual-interface engineering approach for performance enhancement in perovskite-silicon tandem solar cells. By applying ethylenediamine dihydroiodide (EDAI2) to simultaneously modify both top and bottom interfaces of wide-bandgap perovskite layers, we achieve synergistic defect suppression and charge transport optimization. Time-resolved photoluminescence characterization reveals extended carrier lifetimes and improved spatial homogeneity in dual-modified perovskite films. The optimized single-junction wide-bandgap (>1.66 eV) perovskite solar cells attain a champion efficiency of 22.75% with enhanced operational stability. Implemented in perovskite-silicon tandem configuration, the devices achieve over 31% power conversion efficiency, validating the effectiveness of organic ligand-mediated dual-interface engineering in regulating carrier dynamics and advancing perovskite-based tandem photovoltaics.
SCIENCE CHINA Materials•2026•DOI: 10.1007/s40843-025-3581-2
Radiotherapy (RT) is a standard cancer treatment that directly kills tumor cells and promotes systemic immune responses. However, RT can exacerbate tumor hypoxia, which suppresses dendritic cell (DC) antigen presentation and weakens systemic anti-tumor immunity. Here, we report oxygen-loaded in situ gels carrying bacterial outer membrane (MOGel) that slowly degrade to release oxygen and bacterial outer membrane (OM). Oxygen release alleviates tumor hypoxia, while OM continuously activates DCs, enhancing their antigen-presenting capability. In vitro, MOGel combined with RT induced the strongest tumor cell apoptosis. In an orthotopic colon cancer model, MOGel+RT achieved an 80% tumor suppression rate. Notably, MOGel+RT elicited an enhanced abscopal effect, with hypoxia relief and enhanced DC activation contributing to systemic immune responses. These findings suggest that OM-based oxygen gels offer a novel strategy to enhance systemic immune responses to RT.
SCIENCE CHINA Materials•2026•DOI: 10.1007/s40843-025-3813-y
Sonothermal therapy (STT) is an emerging noninvasive energy-based modality that leverages deeply penetrating ultrasound to activate engineered nanomaterials, converting acoustic energy into localized heat. This review systematically delineates four coupling routes between ultrasound and nanomaterials: thermoelastic, thermoviscous, and plasmonic heating; nonradiative recombination and acousto-electric coupling; thermal vibrations in carbon and conjugated systems; and cavitation heating. Design principles for STT nanomaterials are established, with guidance for pre-, intra-, and post-treatment phases, and linked to applications in tumor ablation, wound infection and healing, and implant-associated infection and regeneration. Hybrid platforms integrating STT with sonodynamic or sonocatalytic reactive oxygen species generation are discussed. Key translational barriers include the lack of quantitative and standardized metrics for conversion efficiency, the need for scalable and reproducible manufacturing aligned with Good Manufacturing Practice, limited in vivo biodistribution and biosafety data, and weak links from preclinical models to clinical endpoints. An integrated framework connecting mechanism, material design, and therapeutic outcome is proposed to guide the development of next-generation STT nanoplatforms for treatment-resistant disease.
Chinese Journal of Environmental Engineering•2026•DOI: 10.12030/j.cjee.202408057
Urban waterlogging, exacerbated by climate change and rapid urbanization, poses increasing risks, particularly in coastal low-lying areas with dense river networks. This study simulated waterlogging in the Shajing River drainage area of the Maozhou River basin, Shenzhen, using the SOBEK hydrodynamic model. Under a 5-year return period rainfall, 47 manholes overflowed and 31.29% of stormwater pipes operated at full capacity. Twelve waterlogging-prone points were identified: eight due to insufficient drainage capacity and five due to river backflow from low elevation. Two optimization schemes were compared: enlarging pipe diameters and implementing Low Impact Development (LID) measures. Pipe enlargement reduced overflowing manholes by 32 and full-flow pipe length by 20%, effectively decreasing surface ponding. LID measures reduced overflowing manholes by only 4 and full-flow pipe length by 1.5%, but decreased maximum flooding depth by nearly 1 m, alleviating drainage system burden. The study highlights the complex causes of coastal urban waterlogging, especially river backflow under tidal influence, and recommends considering sea-level rise and storm surge in drainage design. The findings provide valuable references for attributing waterlogging causes and planning drainage network upgrades in coastal cities.