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Science China Chemistry 2025年

作者： Rui Yu Xi Cao Chengyang Zhu Qingqing Chen Ziyi Yan Binbin jiang Junjie Mao Xianwen Wei Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes College of Chemistry and Materials ScienceAnhui Normal University Anhui Provincial Key Laboratory of Advanced Catalysis and Energy Materials School of Chemistry and Chemical Engineering Anqing Normal University School of Chemistry and Chemical Engineering Anhui University of Technology

Developing highly efficient and cost-effective electrocatalysts for hydrogen evolution reaction（HER） is grandly challenging in alkaline and alkaline seawater electrolytes. Herein, the asymmetric interfacial active sites with Ru nanoparticles and Ni single atoms in Ru/Ni-N-C were designed through a solvothermal-pyrolysis process. Constructing highly asymmetric interfacial active sites with a strong electron delocalization effect significantly improves HER kinetics. As expected, Ru/Ni-N-C requires low overpotentials with around 20 mV at 10 mA cm-2and robust durability over 48 h in alkaline and alkaline seawater *** at 200 mA cm-2, the overpotentials are close to 100 mV in both above electrolytes for Ru/Ni-N-C. Density function theory calculation results suggest that the asymmetric interface between Ru nanoparticle and Ni-N-C could accelerate the dissociation of water molecules and modulate the hydrogen species, consequently improving the HER performances. This work opens a unique approach for constructing advanced materials for energy conversion.

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Bioactive materials from berberine-treated human bone marrow mesenchymal stem cells accelerate tooth extraction socket healing through the jaw vascular unit

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Science China Life Sciences 2025年

作者： Ruyu Wang Tianxiao Wang Ziyu Chen Jiandong jiang Yifei Du Hua Yuan Yongchu Pan Yuli Wang Department of Oral and Maxillofacial Surgery The Affiliated Stomatological Hospital of Nanjing Medical University State Key Laboratory Cultivation Base of Research Prevention and Treatment for Oral Diseases Jiangsu Province Engineering Research Centre of Stomatological Translational Medicine Nanjing Medical University Department of Stomatology Chongzhou People's Hospital Medical Basic Research Innovation Centre for Cardiovascular and Cerebrovascular Diseases Ministry of Education International Joint Laboratory for Drug Target of Critical Illnesses School of PharmacyNanjing Medical University Institute of Medicinal Biotechnology Chinese Academy of Medical Sciences & Peking Union Medical College Department of Orthodontic The Affiliated Stomatological Hospital of Nanjing Medical University State Key Laboratory Cultivation Base of Research Prevention and Treatment for Oral Diseases Jiangsu Province Engineering Research Centre of Stomatological Translational Medicine Nanjing Medical University

Delayed tooth extraction socket(TES) healing can cause failure of subsequent oral implantation and increase socioeconomic burden on patients. Excessive amounts of M1 macrophages, apoptotic neutrophils(ANs), and neutrophil extracellular traps(NETs) impair alveolar bone regeneration during TES healing. In the present study, we first discovered that conditioned medium(CM) collected from berberine-treated human bone marrow mesenchymal stem cells(BBR-HB-CM) accelerated TES healing. BBR-HB-CM contained bioactive materials that promoted the polarization of macrophages from M1 to M2, impeded the formation of ANs and NETs, and modulated M2 macrophage efferocytosis in vivo and in vitro. Mechanistically, BBR-HB-CM promoted bone formation by inhibiting macrophage-myofibroblast transition and reprogrammed macrophage polarization through p85/AKT/mTOR pathway-dependent autophagy. The 3-methyladenine abolished the therapeutic effects of BBR-HB-CM. Further studies revealed that BBR-HB-CM accelerated TES healing in rats with type 2 diabetes mellitus. Overall, our results demonstrated that BBR-HB-CM had high potential to promote rapid TES healing.

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Optimizing hardware-software co-design based on non-ideality in memristor crossbars for in-memory computing

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Science China(Information Sciences) 2025年

作者： Pinfeng jiang Danzhe SONG Menghua HUANG Fan YANG Letian WANG Pan LIU Xiangshui MIAO Xingsheng WANG School of Integrated Circuits Huazhong University of Science and Technology Hubei Yangtze Memory Labs

The memristor crossbar, with its exceptionally high storage density and parallelism, enables efficient vector matrix multiplication (VMM), significantly improving data throughput and computational efficiency. However, its analog computing is vulnerable to issues like IR-drop, device-to-device (D2D) variation, and stuck-at-fault (SAF), leading to a substantial decrease in the inference accuracy of neural networks deployed on crossbars. This work presents a hardware-software co-design approach tailored to deal with memristor crossbar non-ideality. We introduce an end-to-end functional array simulator (FAST) for precise and ultra fast end-to-end training, mapping, and evaluation of neural networks on the memristor crossbar. Utilizing the sparsity of the memristor crossbar coefficient matrix, it achieves simulation with low storage and computational resource requirements,dynamically selecting the optimal solution to complete the process. It can also precisely simulate the impact of non-ideal effects such as IR-drop, retention, variation, SAF, and AD/DA precision. Using FAST, we assess memristor crossbar matrix operations under non-ideal conditions, identifying the max throughput and the most energy-efficient crossbar configurations. Additionally,we propose a comparator-based activation function modulation (CAFM) scheme and its corresponding hardware architecture with programmable activation function circuits to address the IR-drop issue, enabling low power and area overheads, resulting in the recovery of neural network accuracy by 54%or more. This is validated within FAST, demonstrating the success of our hardware-software optimization co-design.

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作物三维重构技术研究现状及前景展望

智慧农业（中英文） 2021年第3期3卷 94-115页

作者：朱荣胜李帅孙永哲曹阳杨孙凯郭益鑫姜伯峰王雪莹李杨张战国辛大伟胡振帮陈庆山东北农业大学理学院黑龙江哈尔滨150030 东北农业大学工程学院黑龙江哈尔滨150030 东北农业大学农学院黑龙江哈尔滨150030

近年来,随着无人机和各类传感器在作物育种和田间生产中被广泛使用,作物表型组学得到了极大的发展。兼具了高精度、高通量和高度自动化的作物表型组学及其相关技术的发展,加快了新品种的选育和优化了田间管理。作物三维重构技术是作物... 详细信息

近年来,随着无人机和各类传感器在作物育种和田间生产中被广泛使用,作物表型组学得到了极大的发展。兼具了高精度、高通量和高度自动化的作物表型组学及其相关技术的发展,加快了新品种的选育和优化了田间管理。作物三维重构技术是作物表型组学最基本的技术方法之一,是精准描述作物形态全息结构的重要工具,而作物的三维重构模型对于高通量作物表型获取、作物株型特征评价、植株结构和表型相关性分析等均具有重要意义。为深入总结作物表型中三维重构技术研究进展,本文从作物三维重构的基本方法与应用特点、研究现状和前景展望等三个方面展开综述。本文首先归纳整理了现有作物三维重构方法,并对各类方法的基本原理进行了综述,分析了各类方法的特点和优缺点,同时在归纳作物三维重构方法一般性流程的基础上,对各类方法的适用性进行剖析,归纳整理出了各类方法在实施时的具体流程和注意事项;其次,本文依据研究目标对象不同将作物三维重构的应用分为单株作物重构、田间群体重构和根系重构三部分,并从这三个视角对作物三维重构技术的应用情况进行了综述,依据精度、速度和成本三方面,探究了各个方法对于不同作物三维重构的研究现状,分析整理出不同重构对象背景下作物三维重构存在的问题与挑战;最后,从作物三维重构全程自动化、4D表型的构成、作物虚拟生长与模拟育种和智慧农业发展等方面对作物三维重构技术的前景进行了展望。

关键词：作物三维重构表型组学作物根系三维扫描仪

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新质生产力、双循环联动与共同富裕

华东经济管理 2025年第1期39卷 10-20页

作者：王江吉林农业大学马克思主义学院吉林长春130118 东北师范大学思想政治教育研究中心吉林长春130024

文章以2012—2022年为考察区间,选取我国276个地级及以上城市面板数据,就新质生产力对共同富裕的影响效应与作用机制展开研究。基准回归结果发现,新质生产力可显著推动共同富裕;异质性分析显示,新质生产力对共同富裕的影响效应具有城市... 详细信息

文章以2012—2022年为考察区间,选取我国276个地级及以上城市面板数据,就新质生产力对共同富裕的影响效应与作用机制展开研究。基准回归结果发现,新质生产力可显著推动共同富裕;异质性分析显示,新质生产力对共同富裕的影响效应具有城市规模异质性和分时段异质性;中介效应检验表明,国内循环、国际循环以及双循环联动在新质生产力与共同富裕之间发挥中介效应;门槛效应结果证实,随着数字金融水平不断提升,新质生产力对共同富裕的影响效应持续扩大。研究结论有利于进一步发挥新质生产力“助推器”作用,为实现共同富裕目标提供有益借鉴。

关键词：共同富裕新质生产力双循环联动数字金融新发展格局

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Insight into the particle shape on the impact of dry granular flow against a rigid barrier: A DEM study

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Journal of Earth Science 2025年

作者： Rui-Xiao Zhan Dong Su Xiang-Sheng Chen Yuan-Jun jiang Guo-Ping Lei Jing-Jing Yu Key Laboratory for Resilient Infrastructures of Coastal Cities (MOE)， Shenzhen University College of Civil and Transportation Engineering， Shenzhen University School of Architecture and Urban Planning， Shenzhen University Shenzhen Key Laboratory of Green， Efficient and Intelligent Construction of Underground Metro Station， Shenzhen University Institute of Mountain Hazards and Environment， Chinese Academy of Sciences School of Transportation， Civil Engineering & Architecture， Foshan University

The effect of particle shape on the impact of dry granular flow remains an open area for further investigation. Five distinct particle shapes were examined in this study using discrete element simulations after calibrating the numerical model using a published work. The findings indicated that the particle shape had a significant influence on granular mobility. With negligible variations in normalized kinetic energy between particles of different shapes， the effect of particle shape on the increasing rate of kinetic energy became more obvious. All irregular particle scenarios had longer accumulated particle lengths down the channel than spherical particles. Variations in particle shape led to adjustments in the distribution of impact forces on the barrier. These findings substantially enhance our understanding of the distinctive effects of particle shapes on the impact mechanism of dry granular flow.

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Exploring the interaction between the gut microbiota and cyclic adenosine monophosphate-protein kinase A signaling pathway:a potential therapeutic approach for neurodegenerative diseases

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Neural Regeneration Research 2025年第11期20卷 3095-3112页

作者： Fengcheng Deng Dan Yang Lingxi Qing Yifei Chen Jilian Zou Meiling Jia Qian Wang Runda jiang Lihua Huang College of Pharmacy Chengdu University of Traditional Chinese MedicineChengduSichuan ProvinceChina State Key Laboratory of Southwestern Chinese Medicine Resources Chengdu University of Traditional Chinese MedicineChengduSichuan ProvinceChina

The interaction between the gut microbiota and cyclic adenosine monophosphate(cAMP)-protein kinase A(PKA)signaling pathway in the host's central nervous system plays a crucial role in neurological diseases and enhances communication along the gut–brain *** gut microbiota influences the cAMP-PKA signaling pathway through its metabolites,which activates the vagus nerve and modulates the immune and neuroendocrine ***,alterations in the cAMP-PKA signaling pathway can affect the composition of the gut microbiota,creating a dynamic network of microbial-host *** reciprocal regulation affects neurodevelopment,neurotransmitter control,and behavioral traits,thus playing a role in the modulation of neurological *** coordinated activity of the gut microbiota and the cAMP-PKA signaling pathway regulates processes such as amyloid-β protein aggregation,mitochondrial dysfunction,abnormal energy metabolism,microglial activation,oxidative stress,and neurotransmitter release,which collectively influence the onset and progression of neurological *** study explores the complex interplay between the gut microbiota and cAMP-PKA signaling pathway,along with its implications for potential therapeutic interventions in neurological *** pharmacological research has shown that restoring the balance between gut flora and cAMP-PKA signaling pathway may improve outcomes in neurodegenerative diseases and emotional *** can be achieved through various methods such as dietary modifications,probiotic supplements,Chinese herbal extracts,combinations of Chinese herbs,and innovative dosage *** findings suggest that regulating the gut microbiota and cAMP-PKA signaling pathway may provide valuable evidence for developing novel therapeutic approaches for neurodegenerative diseases.

关键词： cyclic adenosine monophosphate emotional disorders gut microbiota neurodegenerative diseases neurological diseases protein kinase A reciprocal regulation signaling pathway strategy therapies

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Constructing 2D bismuth-based heterostructure for highly efficient photocatalytic CO2 reduction

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Tungsten 2025年第1期7卷 71-79页

作者： Ruo-Hang Xu Hao-Yu jiang Dan-Dan Cui Kun-Rong Du Hong-Run Zhang Sheng-Jie Xu Ya-Qi Li Zhi-Zhen Ren Liang Wang Wei-Chang Hao Yi Du School of Physics and BUAA-UOW Joint Research Centre Beihang University Shenzhen Institute of Beihang University Centre for Catalysis and Clean Energy School of Environment and Science Griffith University

Reforming carbon dioxide（CO2） into fuels and valuable chemicals using solar energy holds significant potential for emission reduction and addressing energy supply *** recombination of photocarriers remains a major obstacle,however,to enhancing solar energy conversion efficiency in the photocatalytic reaction *** two-dimensional materials,constructing heterogeneous structures has emerged as an effective strategy to enhance the separation of photoexcited carriers by leveraging the internal electric field at the heterogeneous ***,we present a facile strategy for preparing Bi4NbO8Br/Bi2WO6plate-on-plate Z-scheme junctions with a strong internal electric field by in situ *** unique heterostructure facilitates efficient separation and transport of photoexcited charges by harnessing the internal electric field induced by chemical bonding at the lateral ***,the Bi4NbO8Br/Bi2WO6heterostructure exhibits enhanced CO2photoreduction properties,along with a CO yield rate of approximately 35 μmol·g-1·h-1under full light *** work offers novel insights into the synthesis of unique hetero structures intended to enhance the efficiency of photocatalytic CO2reduction.

关键词： Bi4NbO8Br/Bi2WO6 CO2 reduction Heterostructures Photocatalysts

Staged dendrite suppression for high safe and stable lithium-sulfur batteries

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Journal of Energy Chemistry 2025年第1期100卷 674-683页

作者： Jun jiang Zhenjie Lu Yanwen Ding Shujun Liu Zhijie Qi Tian Tang Yunfan Zhang Zhiyuan Ma Jingwen Sun Liang Xue Wenyao Zhang Pan Xiong Xin Wang Junwu Zhu Yongsheng Fu Key Laboratory for Soft Chemistry and Functional Materials of Ministry of Education Nanjing University of Science and Technology jiangsu Pylon Battery Co.Ltd

The unavoidable dendrite growth and shuttle effect have long been stranglehold challenges limiting the safety and practicality of lithium-sulfur ***,we propose a dual-action strategy to address the lithium dendrite issue in stages by constructing a multifunctional surface-negatively-charged nanodiamond layer with high ductility and robust puncture resistance on polypropylene （PP） *** uniformly loaded compact negative layer can not only significantly enhance electron transmission efficiency and promote uniform lithium deposition,but also reduce the formation of dendrite during early deposition *** importantly,under the strong puncture stress encountered during the deterioration of lithium dendrite growth under limiting current,the high ductility and robust puncture resistance（145.88 MPa） of as-obtained nanodiamond layer can effectively prevent short circuits caused by unavoidable lithium *** Li||Li symmetrical cells assembled with nanodiamond layer modified PP demonstrated a stable cycle of over 1000 h at 2 mA cm-2with a polarization voltage of only 29.3 ***,the negative charged layer serves as a physical barrier blocking lithium polysulfide ions,effectively mitigating capacity *** improved cells achieved a capacity decay of only 0.042%per cycle after 700 cycles at 3 C,demonstrating effective suppression of dendrite growth and capacity attenuation,showing promising prospect.

关键词： Ductility

Efficient large-area flexible organic photovoltaic modules on transparent thin silver electrodes

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Science China Chemistry 2025年

作者： Cong Xie Zedong Xiong Xinlu Liu Wen Wang Yang Liu Xueshi jiang Xin Lu Lulu Sun Yinhua Zhou Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology Kunming Institute of Physics

Large-area flexible organic photovoltaic（OPV） modules are challenging to achieve high power conversion efficiency（PCE）.Electrical shunts or shortages generally occur in large-area OPV modules due to the ultrathin（100–200 nm） and soft active layers. Improving the surface smoothness of bottom transparent electrode will be able to suppress the shunts and shortages. In this work, we report a method to fabricate smooth and flexible transparent electrodes based on thin silver film, and further to fabricate efficient large-area flexible OPV modules. The fabricated thin silver transparent electrodes simultaneously have high conductivity, high optical transmittance, good mechanical flexibility and low surface roughness. Humidity exposure（h.e.）treatment on MoO3effectively facilitates the continuous growth of the thin transparent silver electrode. 6 nm silver film on MoO3（h.e.） on plastic substrate shows a transmittance up to 89%, a sheet resistance of 15 Ω/sq, and a low surface roughness with a rootmean-square value of 0.276 nm. Furthermore, 52-cm2flexible organic solar modules（15 subcells） showed a certified PCE of12.66%. Furthermore, a 1350 cm2flexible component assembled by 25 pieces of 52–55 cm2modules showed certified PCE of12.10% with an open-circuit voltage of 62.85 V.

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