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Gradient‑Layered MXene/Hollow Lignin Nanospheres Architecture Design for Flexible and Stretchable Supercapacitors

Nano-Micro Letters 2025年第2期17卷 447-462页

作者： Haonan Zhang Cheng Hao Tongtong Fu Dian yu Jane Howe Kaiwen Chen Ning Yan Hao ren Huamin Zhai Jiangsu Provincial Key Lab of Sustainable Pulp and Paper Technology and Biomass Materials NanJing Forestry UniversityNanjing 210037People’s Republic of China Department of Chemical Engineering and Applied Chemistry University of Toronto200 College StreetTorontoON M5S 3E5Canada Department of Materials Science and Engineering University of Toronto184 College StreetTorontoON M5S 3E4Canada College of Materials Science and Engineering Nanjing Forestry UniversityNanjing 210037People’s Republic of China

With the rapid development of flexible wearable electronics,the demand for stretchable energy storage devices has *** this work,a novel gradient-layered architecture was design based on single-pore hollow lignin nanospheres(HLNPs)-intercalated two-dimensional transition metal carbide(Ti_(3)C_(2)T_(x) MXene)for fabricating highly stretchable and durable *** depositing and inserting HLNPs in the MXene layers with a bottom-up decreasing gradient,a multilayered porous MXene structure with smooth ion channels was constructed by reducing the overstacking of MXene ***,the micro-chamber architecture of thin-walled lignin nanospheres effectively extended the contact area between lignin and MXene to improve ion and electron accessibility,thus better utilizing the pseudocapacitive property of *** these strategies effectively enhanced the capacitive performance of the *** addition,HLNPs,which acted as a protective phase for MXene layer,enhanced mechanical properties of the wrinkled stretchable electrodes by releasing stress through slip and deformation during the stretch-release cycling and greatly improved the structural integrity and capacitive stability of the *** electrodes and symmetric flexible all-solid-state supercapacitors capable of enduring 600%uniaxial tensile strain were developed with high specific capacitances of 1273 mF cm^(−2)(241 F g^(−1))and 514 mF cm^(−2)(95 F g^(−1)),***,their capacitances were well preserved after 1000 times of 600%stretch-release *** study showcased new possibilities of incorporating biobased lignin nanospheres in energy storage devices to fabricate stretchable devices leveraging synergies among various two-dimensional nanomaterials.

关键词： Hollow lignin nanospheres MXene Gradient-layered architecture Wrinkled electrodes Stretchable supercapacitors

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肺癌患者中MAGE的表达及临床意义

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检验医学 2004年第3期19卷 232-234页

作者：张澎于津浦安秀梅任秀宝郝希山天津医科大学附属肿瘤医院免疫室天津300060

目的　探讨黑色素瘤抗原基因 (melanomaantigensgene ,MAGE)MAGE A1、MAGE A2和MAGE A3在肺癌中的表达特点并评价其临床意义。方法　采用逆转录聚合酶链反应 (RT PCR)方法检测 31例肺癌的MAGE表达。结果　MAGE A1、MAGE A2和MAGE A3... 详细信息

目的　探讨黑色素瘤抗原基因 (melanomaantigensgene ,MAGE)MAGE A1、MAGE A2和MAGE A3在肺癌中的表达特点并评价其临床意义。方法　采用逆转录聚合酶链反应 (RT PCR)方法检测 31例肺癌的MAGE表达。结果　MAGE A1、MAGE A2和MAGE A3的阳性率分别为 4 1.94 %、4 5 .16 %和 6 1.2 9%。至少表达 1种MAGE A1～A3的比例达 93.5 5 % ,同时表达 2种MAGE A1～A3的比例达 4 1.94 % ,同时表达 3种MAGE A1～A3的比例是 6 .4 5 %。在不同临床分期、病理分型的标本中MAGE A1～A3表达率差异无显著性。存在淋巴结转移的肺癌标本中MAGE A3表达率明显高于没有淋巴结转移的肺癌标本 ,MAGE A3表达与淋巴结转移显著相关 ,而MAGE A1和MAGE A2的表达与淋巴结转移与否无关。结论　MAGE A1～A3在肺癌标本中有较高的表达率 ,尤其是MAGE A3。MAGE A1～A3表达与肺癌的临床分期、病理分型无关。MAGE A3的表达与肺癌转移存在相关性。

关键词：肺癌 MAGE 基因表达聚合酶链反应肿瘤

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硒及硒纳米颗粒生物学机制与口腔常见疾病的关系

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中国组织工程研究 2025年第22期29卷 4813-4822页

作者：彭璐瑶顾瑜遵义医科大学珠海校区广东省珠海市519041 贵州省高等学校口腔疾病研究特色重点实验室贵州省遵义市563000

背景:硒作为人体所需的微量非金属元素具有抗炎、抗氧化、抗菌、免疫调节和抗肿瘤等生物活性,已经在生物医学领域得到广泛应用。目的:总结硒及其纳米颗粒在抗炎、抗氧化、抗菌、免疫调节和抗肿瘤方面的功能和作用机制,以及在口腔医学领... 详细信息

背景:硒作为人体所需的微量非金属元素具有抗炎、抗氧化、抗菌、免疫调节和抗肿瘤等生物活性,已经在生物医学领域得到广泛应用。目的:总结硒及其纳米颗粒在抗炎、抗氧化、抗菌、免疫调节和抗肿瘤方面的功能和作用机制,以及在口腔医学领域的研究进展。方法:以“selenium,selenium nanoparticles,oral neoplasms,caries,dental pupal disease,periapical disease,dental implant”为英文检索词,以“硒,硒纳米颗粒,口腔癌,龋病,牙髓病,根尖周病,口腔种植”为中文检索词,分别在PubMed、中国知网、万方数据库进行文献检索,检索文献时限为2000年1月至2024年2月。经过对文献的深入分析和仔细阅读,最后选择74篇文献进行全面综述。结果与结论:(1)硒的生物学特性主要是通过合成硒蛋白,以抗氧化机制为核心,调节各种细胞因子和介导与之相关的信号通路,进而产生抗菌、免疫调节、抗肿瘤等作用;(2)硒除了在口腔癌、龋病、牙髓根尖周病等方面可用于早期诊断、治疗和预后判断外,更多的是可作为新型口腔材料在口腔领域应用,例如:用于开发新型牙科封闭剂或根管系统消毒剂,又或在优化口腔种植材料性能等方面有所应用;(3)生物安全性是影响硒在生物医药领域应用的最重要因素之一,选择合适的剂量和形式才能使其发挥出良好作用。硒在口腔材料学方面展现出了巨大的应用潜力和广阔的发展空间。

关键词：硒硒纳米颗粒口腔癌龋病牙髓根尖周病口腔种植

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Inter-Skeleton Conductive Routes Tuning Multifunctional Conductive Foam for Electromagnetic Interference Shielding, Sensing and Thermal Management

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NANO-MICRO LETTERS 2025年第1期17卷 1-18页

作者： Li, Xufeng Chen, Chunyan Li, Zhenyang Yi, peng Zou, Haihan Deng, Gao Fang, Ming He, Junzhe Sun, Xin yu, Ronghai Shui, Jianglan Pan, Caofeng Liu, Xiaofang Beihang Univ Sch Mat Sci & Engn Beijing 100191 Peoples R China Beihang Univ Inst Atom Mfg Beijing 100191 Peoples R China Tianmushan Lab Xixi Octagon City Hangzhou 310023 Peoples R China Beijing Inst Environm Features Sci & Technol Electromagnet Scattering Lab Beijing 100854 Peoples R China

Unique inter-skeleton conductive films are constructed in polymer *** resistance change of the foam can reach four orders of magnitude under *** foam exhibits strain-adaptive electromagnetic interference shielding performance, anti-interference pressure sensor with high sensitivity over a wide pressure range and compression-regulated Joule heating function. Conductive polymer foam (CPF) with excellent compressibility and variable resistance has promising applications in electromagnetic interference (EMI) shielding and other integrated functions for wearable electronics. However, its insufficient change amplitude of resistance with compressive strain generally leads to a degradation of shielding performance during deformation. Here, an innovative loading strategy of conductive materials on polymer foam is proposed to significantly increase the contact probability and contact area of conductive components under compression. Unique inter-skeleton conductive films are constructed by loading alginate-decorated magnetic liquid metal on the polymethacrylate films hanged between the foam skeleton (denoted as AMLM-PM foam). Traditional point contact between conductive skeletons under compression is upgraded to planar contact between conductive films. Therefore, the resistance change of AMLM-PM reaches four orders of magnitude under compression. Moreover, the inter-skeleton conductive films can improve the mechanical strength of foam, prevent the leakage of liquid metal and increase the scattering area of EM wave. AMLM-PM foam has strain-adaptive EMI shielding performance and shows compression-enhanced shielding effectiveness, solving the problem of traditional CPFs upon compression. The upgrade of resistance response also enables foam to achieve sensitive pressure sensing over a wide pressure range and compression-regulated Joule heating function.

关键词： Inter-skeleton conductive films Conductive polymer foam Liquid metal Electromagnetic interference shielding

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Sulfolane‑Based Flame‑Retardant Electrolyte for High‑Voltage Sodium‑Ion Batteries

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Nano-Micro Letters 2025年第2期17卷 498-516页

作者： Xuanlong He Jie peng Qingyun Lin Meng Li Weibin Chen Pei Liu Tao Huang Zhencheng Huang yuying Liu Jiaojiao Deng Shenghua Ye Xuming Yang Xiangzhong ren Xiaoping Ouyang Jianhong Liu Biwei Xiao Jiangtao Hu Qianling Zhang Graphene Composite Research Center College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen 518060People’s Republic of China Center of Electron Microscopy State Key Laboratory of Silicon and Advanced Semiconductor MaterialsSchool of Materials Science and EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China GRINM(Guangdong)Research Institute for Advanced Materials and Technology FoshanGuangdong 528051People’s Republic of China College of Energy Engineering Zhejiang UniversityHangzhouZhejiang 310027People’s Republic of China School of Materials Science and Engineering Xiangtan UniversityXiangtan 411105People’s Republic of China Shenzhen Eigen-Equation Graphene Technology Co.Ltd Shenzhen 518000People’s Republic of China

Sodium-ion batteries hold great promise as next-generation energy storage ***,the high instability of the electrode/electrolyte interphase during cycling has seriously hindered the development of *** particular,an unstable cathode–electrolyte interphase(CEI)leads to successive electrolyte side reactions,transition metal leaching and rapid capacity decay,which tends to be exacerbated under high-voltage ***,constructing dense and stable CEIs are crucial for high-performance *** work reports localized high-concentration electrolyte by incorporating a highly oxidation-resistant sulfolane solvent with non-solvent diluent 1H,1H,5H-octafluoropentyl-1,1,2,2-tetrafluoroethyl ether,which exhibited excellent oxidative stability and was able to form thin,dense and homogeneous *** excellent CEI enabled the O3-type layered oxide cathode NaNi_(1/3)Mn_(1/3)Fe_(1/3)O_(2)(NaNMF)to achieve stable cycling,with a capacity retention of 79.48%after 300 cycles at 1 C and 81.15%after 400 cycles at 2 C with a high charging voltage of 4.2 *** addition,its nonflammable nature enhances the safety of *** work provides a viable pathway for the application of sulfolane-based electrolytes on SIBs and the design of next-generation high-voltage electrolytes.

关键词： Sodium-ion batteries Sulfolane-based electrolyte High voltage Layered oxide cathode Flame retardant

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Chattering analysis for discrete sliding mode control ofdistributed control systems

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Journal of Systems Engineering and Electronics 2016年第5期27卷 1096-1107页

作者： litong ren shousheng xie yu zhang jingbo peng ledi zhang Aeronautics and Astronautics Engineering College Air Force Engineering University Xi’an 710038 China

The chattering characteristic of sliding mode control isanalyzed when it is applied in distributed control systems （DCSs）.For a DCS with random time delay and packet dropout, a discreteswitching system model with time varying sampling period isconstructed based on the time delay system method. The reachinglaw based sliding mode controller is applied in the proposedsystem. The exponential stability condition in the form of linearmatrix inequality is figured out based on the multi-Lyaponov functionmethod. Then, the chattering characteristic is analyzed for theswitching system, and a chattering region related with time varyingsampling period and external disturbance is proposed. Finally, numericalexamples are given to illustrate the validity of the analysisresult.

关键词： distributed control system sliding mode control,switching system chattering analysis.

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UIF-based cooperative tracking method for multi-agent systems with sensor faults

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Science China(Information Sciences) 2019年第1期62卷 15-28页

作者： Yingrong yu Siting peng Xiwang DONG Qingdong LI Zhang ren Science and Technology on Aircraft Control Laboratory School of Automation Science and Electrical EngineeringBeihang University

For maneuvering target tracking with sensor faults, consensus-based distributed state estimation problems are studied herein. The communication status of the nonlinear system composed of multiple agents is described using the graph theory. Considering the impacts caused by sensor failures on measurement equations, a weighted average consensus-based unscented information filter(UIF) algorithm is proposed to improve tracking accuracy. Moreover, the estimation error for the investigated nonlinear system has been analyzed based on the stochastic boundedness theory to evaluate the proposed algorithm's performance and feasibility. Finally, simulation results are presented to assert the validity of the method.

关键词： unscented information filter consensus theory cooperative tracking multi-agent system stochastic boundedness

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Towards safe and comfortable high-speed transportation infrastructure

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2012年第11期13卷 799-801页

作者： ren-peng CHEN Xiong (Bill) yu MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering Department of Civil EngineeringZhejiang UniversityHangzhou 310058China Department of Civil Engineering Case Western Reserve UniversityClevelandOhio 44106USA

In the past decades,we have witnessed the rapid development of high-speed transportation infrastructure,such as high-speed railways,urban subways,expressways,and airfields *** a major effort in transportation infrastructure development,China plans to build 20 000 km of high-speed rail network by the year of 2020 with design speed up to 500 km/*** such a fast pace,ensuring the safe and comfortable high-speed transportation presents major technical challenges to the design,construction,and maintenance of high performance infrastructure.

关键词：交通基础设施建设舒适安全高速铁路城市地铁高速公路交通运输铁路网络

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Reoxidation of liquid steel and evolution of inclusions during protective atmosphere electroslag remelting of Ce-containing heat-resistant stainless steel

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Journal of Iron and Steel Research International 2024年第8期31卷 1923-1935页

作者： yu Zhao Cheng-bin Shi Shijun Wang peng ren Jing Li State Key Laboratory of Advanced Metallurgy University of Science and Technology Beijing(USTB)Beijing 100083China

The evolution of Ce-containing inclusions and its correlation with the reoxidation of liquid steel during protective atmosphere electroslag remelting(ESR)of heat-resistant steel were *** reoxidation of liquid steel took place during the ESR,resulting in the oxygen pickup from 0.0014 to 0.0053 wt.%.The inclusions in the consumable electrode,liquid metal pool and remelted ingot are Ce_(2)O_(2)S and Ce_(2)O,inclusions *** inclusions in the remelted ingot are originated from three ways:(I)the original inclusions from the electrode;(Il)the newly formed Ce_(2)O_(2)S and Ce_(2)O_(3) inclusions in the liquid metal pool by reoxidation remaining still in remelted ingot;(IlI)the newly generated Ce2O2S and Ce_(2)O_(3) inclusions during cooling and solidification of liquid *** relative proportions of Ce_(2)O_(3) inclusions in liquid metal pool and remelted ingot are 41% and 76.5%,*** inclusions ranging from 2 to 5μm in the remelted ingot take up 55%,followed by the inclusions smaller than 2μm(43%of total inclusions).The number proportion of the Ce_(2)0,inclusions in the liquid metal pool which were removed by floating up into slag is 1.96×10-5%.

关键词： Non-metallic inclusion Electroslag remelting Rare earth cerium Reoxidation Inclusion evolution

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Integrated agronomic practice management decreases soil carbon emission and increases environmental ecological benefits of summer maize

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Pedosphere 2023年第4期33卷 649-658页

作者： Ningning yu Baizhao ren Bin ZHAO peng LIU Jiwang ZHANG State Key Laboratory of Crop Biology and College of Agronomy Shandong Agricultural UniversityTai'an 271018(China)

Integrated agronomic practice management(IAPM)is an effective strategy for increasing nitrogen(N)use efficiency(NUE)and yield during crop *** various studies have evaluated the mechanism of a single agronomic management practice to increase yield and production efficiency and decrease environmental costs,few have investigated the effects of IAPM systems.A field experiment was conducted using four IAPM systems,a local smallholder farmers’practice system(T1),an improved management system(T2),a high-yield production system(T3),and an optimized management system(OMS),to study the annual yield,greenhouse gas(GHG)emissions,carbon(C)footprint(CF),and net environmental ecological benefit(NEEB)of summer *** results revealed that OMS was the most advantageous choice of IAPM,which increased yield and NUE and reduced GHG emissions and *** OMS,yield and NUE were 42.6%and 88.1%higher,and N_(2)O,CO_(2),and CH4 emissions were on average 35.4%,5.8%,and 156.5%lower,respectively,than those under *** the four IAPM systems,OMS resulted in the best soil quality,the lowest soil bulk density,the highest soil C/N ratio,and the highest soil total organic C content,which contributed to reduced GHG *** footprint and cost were the lowest under OMS,which decreased fertilizer input and GHG *** management system reduced CF and C cost by 5.9%and 33.9%,respectively,and increased NEEB by 111.4%compared to *** T3 had the highest yield,it also had the highest GHG emissions and *** conclusion,OMS delivered a high yield and NUE while mitigating negative environmental impacts and increasing ***,OMS is a suitable management system to increase the productivity and sustainability of summer maize.

关键词： carbon cost carbon footprint greenhouse gas emissions net environmental ecological benefit nitrogen use efficiency optimized management system soil quality

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