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Bottom-up scalable temporally-shaped femtosecond laser deposition of hierarchical porous carbon for ultrahigh-rate micro-supercapacitor

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Science China materials 2022年第9期65卷 2412-2420页

作者： Yongjiu Yuan zihao Zhang Xin Li Lan Jiang Xueqiang Zhang Pei Zuo Chenyang Xu Le ma Sumei Wang Yang Zhao Liangti Qu Laser Micro/Nano Fabrication Laboratory School of Mechanical EngineeringBeijing Institute of TechnologyBeijing 100081China Beijing Institute of Technology Chongqing Innovation Center Chongqing 401120China Yangtze Delta Region Academy of Beijing Institute of Technology Jiaxing 314003China Beijing Key Laboratory of Conversion materials School of Chemistry and Chemical EngineeringBeijing Institute of TechnologyBeijing 100081China Key Laboratory for Advanced materials Processing Technology Ministry of Education of ChinaState Key Laboratory of TribologyDepartment of Mechanical EngineeringDepartment of ChemistryTsinghua UniversityBeijing 100084China

With the accelerated development of electronic devices,micro-supercapacitors(MSCs),as energy storage devices that can charge and discharge quickly,have attracted considerable *** improve the rate capability of MSCs with consideration of the energy density remains a *** demonstrated a facile method for the preparation of thin films through bottom-up femtosecond pulsed laser *** femtosecond laser irradiated the polyimide film through a transparent substrate to uniformly sputter the electrode material onto the lower surface of the *** successfully deposited porous amorphous carbon,graphene,and carbon quantum dots with controllable properties by temporally shaping the femtosecond *** resulting MSC exhibited an ultrahigh frequency response and good performance at scan rates up to 10,000 V s^(-1).The characteristic frequency f_(0) of the MSC was as high as 42,000 Hz,and the relaxation time constant τ_(0) was 0.0238 *** MSC reached an impedance phase angle of -82.6° at a frequency of 120 Hz,an ultrahigh power density of more than 30 kW cm^(-3),and an energy density of 0.068 W h *** method provides a novel perspective for the preparation of ultrahigh frequency filters for future miniaturized portable electronic devices.

关键词： polyimide temporally-shaped femtosecond laser pulsed laser deposition ultrahigh frequency response microsupercapacitor

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Novel neutrophil extracellular trap-related mechanisms in diabetic wounds inspire a promising treatment strategy with hypoxia-challenged small extracellular vesicles

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Bioactive materials 2023年第9期27卷 257-270页

作者： Ziqiang Chu Qilin Huang Kui ma Xi Liu Wenhua Zhang Shengnan Cui Qian Wei Huanhuan Gao Wenzhi Hu zihao Wang Sheng Meng Lige Tian Haihong Li Xiaobing Fu Cuiping Zhang Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research Department PLA General Hospital28 Fuxing RoadBeijing100853PR China Chinese PLA Medical School 28 Fuxing RoadBeijing100853PR China College of Graduate Tianjin Medical UniversityTianjin300070PR China Research Unit of Trauma Care Tissue Repair and RegenerationChinese Academy of Medical Sciences2019RU05151 Fucheng RoadBeijing100048PR China PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury Repair and RegenerationChinese PLA Hospital and PLA Medical College51 Fucheng RoadBeijing100048PR China Department of Dermatology China Academy of Chinese Medical ScienceXiyuan HospitalBeijing100091PR China Department of Wound Repair Institute of Wound Repair and Regeneration MedicineSouthern University of Science and Technology HospitalSouthern University of Science and Technology School of MedicineShenzhen518055PR China

Neutrophil extracellular traps(NETs)have been considered a significant unfavorable factor for wound healing in diabetes,but the mechanisms remain *** therapeutic application of small extracellular vesicles(sEVs)derived from mesenchymal stem cells(MSCs)has received considerable attention for their *** preconditioning is reported to enhance the therapeutic potential of MSC-derived sEVs in regenerative ***,the aim of this study is to illustrate the detailed mechanism of NETs in impairment of diabetic wound healing and develop a promising NET-targeting treatment based on hypoxic pretreated MSC-derived sEVs(Hypo-sEVs).Excessive NETs were found in diabetic wounds and in high glucose(HG)-induced *** research showed that high concentration of NETs impaired the function of fibroblasts through activating endoplasmic reticulum(ER)***-sEVs efficiently promoted diabetic wound healing and reduced the excessive NET formation by transferring *** analysis and RNA interference experiment revealed that miR-17-5p in Hypo-sEVs obstructed the NET formation by targeting TLR4/ROS/maPK ***,miR-17-5p overexpression decreased NET formation and overcame NET-induced impairment in fibroblasts,similar to the effects of ***,we identify a previously unrecognized NET-related mechanism in diabetic wounds and provide a promising NET-targeting strategy for wound treatment.

关键词： Diabetic wound healing Neutrophil extracellular traps Small extracellular vesicles Hypoxia Endoplasmic reticulum stress

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Micropore engineering on hollow nanospheres for ultra-stable sodium-selenium batteries

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Journal of Energy Chemistry 2023年第5期80卷 99-109,I0004页

作者： Gongke Wang Yumeng Chen Yu Han Lixue Yang Wenqing Zhao Changrui Chen zihao Zeng Shuya Lei Shaohui Yuan Peng Ge School of materials Science and Engineering Henan Engineering Research Center of Design and Recycle for Advanced Electrochemical Energy Storage MaterialsHenan Normal UniversityXinxiang 453007HenanChina Comprehensive Energy Research Center Institute of Science and TechnologyChina Three Gorges CorporationBeijing 100038China School of Minerals Processing and Bioengineering Central South UniversityChangsha 410083HunanChina

Attracted by high energy density and considerable conductivity of selenium(Se),Na-Se batteries have been deemed promising energy-storage ***,it still suffers from sluggish kinetic behaviors and similar“shuttling effect”to ***,utilizing uniform hollow carbon spheres as precursors,Se-material is effectively loaded through vapor-infiltration *** to the distribution of optimized pores,the content of microspores could be up to~60%(ma h g^(-1)after 100 cycles at the current density of 0.1 *** after 6000 cycles,the capacity could be still kept at about 225 ma h g^(-1)at 5.0 *** by the detailed kinetic analysis,the designed microspores size induces the increasing redox reaction of nano Se,whilst the surface traits further render the enhancement of pseudo-capacitive ***,after cycling,the product Sex(xmary active *** this,the work is anticipated to provide an effective strategy for advanced electrodes for Na-Se systems.

关键词： Carbon host Tailoring pores Heteroatom doping Vapor-infltration method Sodium-selenium batteries

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不同种植模式对连作棉花根系生长和生理指标的影响

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中国棉花 2019年第3期46卷 11-15页

作者：吴国丽魏飞刘建国王超凡马子豪马怡茹石河子大学/新疆生产建设兵团绿洲生态农业重点实验室新疆石河子832003

以连作30年棉田为基础,设置棉花轮作苜蓿、棉花轮作小麦、棉花间作孜然和棉花间作洋葱4种种植模式,研究不同种植模式对连作棉田棉花根系生长的影响,揭示不同种植模式对棉田连作障碍的缓解效果。研究结果表明:棉花间作洋葱、间作孜然、... 详细信息

以连作30年棉田为基础,设置棉花轮作苜蓿、棉花轮作小麦、棉花间作孜然和棉花间作洋葱4种种植模式,研究不同种植模式对连作棉田棉花根系生长的影响,揭示不同种植模式对棉田连作障碍的缓解效果。研究结果表明:棉花间作洋葱、间作孜然、轮作苜蓿和轮作小麦与棉花连作(对照)相比,棉花根长分别增加263.9%、52.9%、114.1%和19.4%,根表面积分别增加215.7%、32.2%、47.5%和125.5%,根体积分别增加226.7%、40.6%、30.4%和80.5%。不同处理棉花根系保护酶活性与对照相比均增加,其中间作洋葱、间作孜然、轮作苜蓿和轮作小麦处理在棉花花铃期根系活力比对照分别增加53.6%、17.3%、13.7%和38.9%,可溶性蛋白质含量增加48.9%、5.3%、44.2%和50.7%,MDA含量比对照分别降低35.8%、11.7%、24.4%和31.5%。结合根系生长及生理指标的分析,4种种植模式对棉花根系生长的促进效果表现为间作洋葱>轮作小麦>轮作苜蓿>间作孜然。

关键词：棉花轮作间作根系生长生理指标

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2012—2021年青藏高原牦牛源沙门菌流行病学调查

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中国动物传染病学报 2024年第1期32卷 202-206页

作者：班马泽郎李天娇周赛赛吴丹卢姊豪宋仁德罗晓林赵索南马进寿参木友石红梅索朗斯珠西藏农牧学院动物科学学院林芝860000 青海玉树藏族自治州畜牧兽医工作站玉树815400 四川省草原科学研究院成都610097 青海省海北畜牧兽医科学研究所海北812200 青海省大通种牛场大通810102 西藏农牧科学院草原研究所拉萨850000 甘南州畜牧工作站甘南747000

为了明确青藏高原地区牦牛感染沙门菌(SE)情况,该研究采用ELISA双抗体夹心法,对2012—2021年采集自西藏、青海、甘肃、四川1725份牦牛血清样品进行SE抗体检测。结果显示:1725份牦牛血清中检测出SE抗体总阳性率为23.54%(406/1725),西藏... 详细信息

为了明确青藏高原地区牦牛感染沙门菌(SE)情况,该研究采用ELISA双抗体夹心法,对2012—2021年采集自西藏、青海、甘肃、四川1725份牦牛血清样品进行SE抗体检测。结果显示:1725份牦牛血清中检测出SE抗体总阳性率为23.54%(406/1725),西藏地区牦牛SE阳性率与其他地区相比较高;2012—2021年青藏高原地区牦牛血清SE抗体年阳性率分别为7.35%、46.02%、15.31%、17.68%、8.79%、19.84%、6.04%、23.64%、14.81%、74.64%;牦牛在不同海拔感染SE的阳性率分别为13.67%(2900~3400 m)、14.61%(3400~3900 m)、28.62%(3900~4400 m)、34.72%(4400 m以上);不同性别牦牛感染SE平均阳性率分别为公(25.61%)、母(21.99%);4省牦牛感染SE阳性率分别为西藏(27.67%)、青海(13.50%)、甘肃(13.33%)、四川(1.89%)。本研究结果可为了解青藏高原牦牛SE病的流行病学情况,提供参考。

关键词：青藏高原牦牛沙门菌流行病学

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考虑通信负载迁移及储能动态备电的5G基站光伏消纳能力研究

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电工技术学报 2023年第21期38卷 5832-5845,5922页

作者：麻秀范刘子豪王颖冯晓瑜华北电力大学电气与电子工程学院北京102206

在双碳目标要求下,国家大力开展绿色节能5G基站建设,5G基站配备屋顶光伏和储能电池以解决5G基站高功耗、高成本问题。然而不同负荷区域的屋顶分布式光伏出力与基站负载具有时空差异性,存在光伏消纳困难的问题。为此,该文在分析不同负荷... 详细信息

在双碳目标要求下,国家大力开展绿色节能5G基站建设,5G基站配备屋顶光伏和储能电池以解决5G基站高功耗、高成本问题。然而不同负荷区域的屋顶分布式光伏出力与基站负载具有时空差异性,存在光伏消纳困难的问题。为此,该文在分析不同负荷区域的屋顶光伏出力和5G基站负载差异性的基础上,建立屋顶光伏出力和5G基站负载迁移模型,实现不同负荷区域基站负载和屋顶光伏的时空差异互补。针对5G基站的备电需求,考虑各负荷区域的配电网可靠性和通信负载特性,提出了储能动态备电的充放电机制;然后以光伏消纳率最大化和基站运营成本最小化为目标,建立考虑通信负载迁移及储能动态备电的5G基站优化调度模型;最后设立四种场景及三种规划区方案进行验证对比。算例分析结果表明,所提模型能够减少基站运营成本,提高光伏消纳率。

关键词： 5G基站负载迁移储能动态备电屋顶光伏消纳

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Fast ion/electron conducting scaffold of Li-Zn dual-phase alloy enable uniform deposition of Li metal at high current densities

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Journal of Energy Chemistry 2020年第12期51卷 285-292页

作者： Zeyu Yao Weishang Jia zihao Wang Jin Ruan Xianggang Kong Xin Guan Zhihong Wang Jingze Li Ying Wang Wei Zou Fu Zhou School of materials and Energy University of Electronic Science and Technology of China College of Optoelectronic Technology Chengdu University of Information Technology School of Mechanical and Automotive Engineering Shanghai University of Engineering Science Research and Development Center Tianqi Lithium Co. Ltd.

The commercial application of Li metal anodes is hindered by the dendrite growth and short cycling lifespan under high current density that are caused in part by the imbalance in the charge transport capability in the anode. Here, we present a design principle of a three-dimensional（3 D） skeleton to introduce highly efficient ion-and electron-conducting channels in the Li anode. A process of thermal infusion followed by cooling is used to synthesize a dual-phase Li-rich Li-Zn alloy that consists of an LiZn intermetallic compound phase as the 3 D framework and the uniformly distributed Li metal phase as the active material. The phase-segregated Li-Zn phase endows the Li10 Zn alloy with built-in fast ion transport channels, in addition to the ionic conducting pathway of the liquid electrolyte, leading to better charge balance and conformal deposition of Li on the scaffold. Consequently, the Li10 Zn alloy anode can be operated for more than 10000 cycles at a high current density of 5 ma cmand areal capacity of 1 m Ah cm. Remarkably, even for the high current density of 10 m A cmand areal capacity as large as 10 mah cm, the cycling lifetime is still greater than 500 cycles. Thus, the scaffold with high ion/electron mixed conductivity is highly effective for inhibiting Li dendrite growth and prolonging the cycling lifespan, highlighting the great promise of the fast ion conducting alloy framework for use in Li secondary batteries at high current densities.

关键词： Lithium metal anode Fast ion/electron conducting scaffold Dual-phase Li-rich Li-Zn alloy Composite lithium anode Lithium dendrite

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新型超分子水杨酸联合火针治疗痤疮的Meta分析

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中国美容医学 2024年第5期33卷 71-74页

作者：黄登霞肖子浩张春和王丽芬王慧范春美丁克凡马斯棋杨毅坚云南中医药大学第一附属医院皮肤科云南昆明650021 贵州中医药大学第二附属医院肛肠科贵州贵阳550003

目的:利用Meta分析观察新型超分子水杨酸联合火针治疗痤疮的临床有效性和安全性。方法:检索the Cochrane Library、Pubmed数据库、中国生物医学文献数据库、CNKI中国知网、维普、万方数据库,纳入新型超分子水杨酸联合火针治疗痤疮的随... 详细信息

目的:利用Meta分析观察新型超分子水杨酸联合火针治疗痤疮的临床有效性和安全性。方法:检索the Cochrane Library、Pubmed数据库、中国生物医学文献数据库、CNKI中国知网、维普、万方数据库,纳入新型超分子水杨酸联合火针治疗痤疮的随机对照治疗(Randomized controlled trial,RCT),并进行方法学质量评价,采用Revman 5.4软件对总有效率进行统计分析。结果:9篇RCT文献纳入本项研究,累计病例612例。Meta分析结果显示新型超分子水杨酸联合火针治疗痤疮总有效率[RR=1.13,95%CI(0.32,0.69),P<0.00001]。结论:新型超分子水杨酸联合火针治疗痤疮总有效率较高,优于单纯使用新型超分子水杨酸组。

关键词：水杨酸火针痤疮 Meta分析

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AdMSC-derived exosomes alleviate acute lung injury through transferring mitochondrial respiratory component to improve bioenergetics and immune homeostasis of alveolar macrophages

AdMSC-derived exosomes alleviate acute lung injury through t...

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第十四届全国免疫学学术大会

作者： Liangjun Xia Nianyin Lv zihao Liang Tonghui ma Haibo Cheng Youbing Xia Liyun Shi Nanjing University of Chinese Medicine Affiliated Hospital of Nanjing University of Chinese Medicine Affiliated Hospital of Xuzhou Medical University Zhejiang Shuren University

Currently,acute lung injury(ALI) and acute respiratory distress syndrome(ARDS) featured with severe hypoxemia,airway dysfunction,and extensive inflammation lack effective *** activation of macrophages with mitochondria dismiss was proved to be associated with pathogenesis of *** from adipose-derived mesenchymal stem cells(AdMSC-Exos) have been distinguished by their low immunogenicity,lack of tumorigenicity,and high clinical safety,but their role in treating ALI and the mechanism involved need to be *** this study,we showed that AdMSC-Exos provided profound protection against LPS-induced ALI in mice,accompanied by macrophages shifting from M1 proinflammatory to M2 anti-inflammatory ***,our data indicated that AdMSC-Exos deliver mitochondrial component to recipient macrophages,which were metabolically disturbed during the development of ***,transfering of AdMSC-Exos significantly improved macrophages mitochondrial integrity,mitochondrial membrane potential(MMP) and oxidative phosphorylation level,leading to the resumption of metabolic and immune homeostasis of airway macrophages and mitigating lung inflammatory ***,our study reveals the potential role for AdMSC-Exos in protecting ALI,and suggests that macrophage-centered and mitochondria-targeted strategy might become a promising treatment for certain inflammatory lung diseases.

关键词： stem cells exosomes acute lung injury alveolar macrophages mitochondrial function

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Interfacial engineering of transition-metal sulfides heterostructures with built-in electric-field effects for enhanced oxygen evolution reaction

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Chinese Journal of Chemical Engineering 2022年第1期35卷 320-328页

作者： Shan Ni Hongnan Qu Huifang Xing zihao Xu Xiangyang Zhu Menglei Yuan Meng Rong Li Wang Jiemiao Yu Yanqing Li Liangrong Yang Huizhou Liu CAS Key Laboratory of Green Process and Engineering State Key Laboratory of Biochemical EngineeringInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China School of Chemical Engineering University of Chinese Academy of SciencesBeijing 100049China Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of SciencesQingdao 266061China

Developing highly efficient,durable,and non-noble electrocatalysts for the sluggish anodic oxygen evolution reaction(OER)is the pivotal for meeting the practical demand in water ***,the current transition-metal electrocatalysts still suffer from low activity and durability on account of poor interfacial reaction *** this work,a facile solid-state synthesis strategy is developed to construct transition-metal sulfides heterostructures(denoted as MS_(2)/NiS_(2),M=Mo or W)for boosting OER *** a result,MoS2/NiS2 and WS2/NiS2 show lower overpotentials of 300 mV and 320 mV to achieve the current density of 10 ma·cm^(-2),and smaller Tafel slopes of 60 ***^(-1) and 83 ***^(-1)in 1 mol·L^(-1) KOH,respectively,in comparison with the single MoS2,WS2,NiS2,as well as even the benchmark *** experiments reveal that the designed heterostructures have strong electronic interactions and spontaneously develop a built-in electric field at the heterointerface with uneven charge distribution based on the difference of band structures,which promote interfacial charge transfer,improve absorptivity of OH-,and modulate the energy level more comparable to the ***,the designed transition-metal sulfides heterostructures exhibit a remarkably high electrocatalytic activity for *** study provides a simple strategy to manipulate the heterostructure interface via an energy level engineering method for OER and can be extended to fabricate other heterostructures for various energy-related applications.

关键词： Oxygen evolution reaction Transition-metal sulfides heterostructures Heterointerface Built-in electric field

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