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Showing 1–10 of 10 results
Advanced filters: Author: Guofu Qin Clear advanced filters

  • Robust, fast, and low-power hardware platforms are desirable for the implementation of real-time machine vision. Here the authors develop a computing-in-sensor network using ferroelectric photo sensors with remanent-polarization-controlled photo responsivities.

    • Boyuan Cui
    • Zhen Fan
    • Jun-Ming Liu
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-12

  • While reservoir computing can process temporal information efficiently, its hardware implementation remains a challenge due to the lack of robust and energy efficient hardware. Here, the authors develop an all-ferroelectric reservoir computing system, showing high accuracies and low power consumptions in various tasks like the time-series prediction.

    • Zhiwei Chen
    • Wenjie Li
    • Jun-Ming Liu
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-12

  • H2 is regarded as an attractive green fuel and a promising energy carrier for the future. Here, the promotion functions of reverse spillover effects in the H2 generation reactions over bicomponent catalysts are revealed by performing in situ X ray absorption near edge structure characterization.

    • Zhe Gao
    • Guofu Wang
    • Yong Qin
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-9

  • In their previous study, the researchers systematically revealed that endplate sclerosis is a significant aspect of spine degeneration or aging and a primary source of spinal pain. However, the underlying mechanisms of endplate sclerosis remained unclear. In their current report, it is shown that senescent cells accumulate in the sclerotic endplates of lumbar spine instability (LSI) or aging mouse models. The clearance of these senescent cells was found to restrain angiogenesis coupled with endplate sclerosis. Notably, macrophages were identified as undergoing senescence in the sclerotic endplates. The specific knockout of cdkn2a (p16) in macrophages abrogated LSI or aging-induced angiogenesis and sclerosis in the endplates. Moreover, both in vivo and in vitro studies indicated that IL-10 mediates the effects of senescent macrophages on angiogenesis and sclerosis in the endplates. Overall, these findings suggest that senescent macrophages orchestrate angiogenesis coupling with endplate sclerosis via the IL-10/pSTAT3 axis. This study enhances the understanding of the connection between immune senescence and endplate sclerosis and uncovers senescent macrophage-initiated endplate sclerosis as potential therapeutic targets for spinal degeneration.

    • Yonggang Fan
    • Weixin Zhang
    • Shuangfei Ni
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-21

  • In situ tuning of the electronic structure of active sites is a long-standing challenge. Here, the authors report an approach to tune the electronic structure of cobalt species during the styrene epoxidation reaction by the introduction of controllable hydrogen spillover for enhanced selectivity.

    • Mi Xiong
    • Zhe Gao
    • Yong Qin
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-10

  • The development of catalysts with high activity and selectivity for hydrogenation remains a challenge. Here the authors report cobalt oxide-platinum catalysts with increased oxygen vacancy resulting from the promoted hydrogen spillover with platinum-oxygen vacancies as active sites.

    • Jiankang Zhang
    • Zhe Gao
    • Yong Qin
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-8

  • An approach to boost the power conversion efficiencies (PCEs) of ferroelectric photovoltaics (PVs) is proposed based on the Schottky barrier effect. This approach leverages the thinning of a ferroelectric film to somewhere close to the depletion width, which can simultaneously suppress the recombination and lower the series resistance. Using this approach, we achieve a PCE up to 2.49% (under 365-nm ultraviolet illumination) in the 12-nm Pb(Zr0.2Ti0.8)O3 ultrathin films. Our study provides insightful guidance on how to design and tailor the ferroelectric films to achieve high PCEs, and also demonstrates the great potential of ferroelectrics for use in ultrathin-film PV devices.

    • Zhengwei Tan
    • Lanqing Hong
    • Jun-Ming Liu
    ResearchOpen Access
    NPG Asia Materials
    Volume: 11, P: 1-13