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“Zero‑Strain” NiNb_(2)O_(6) Fibers for All‑c.imate Lithium Storage

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Nano-Mic.o Letters 2025年第1期17卷 348-360页

作者： yan Zhao Qiang Yuan Liting yang Guisheng Liang Yifeng c.eng Limin Wu c.unfu Lin Renc.ao c.e c.llege of Physic. Donghua UniversityShanghai 201620People’s Republic of China Sc.ool of Materials Sc.enc. and Engineering Institute of Materials for Energy and EnvironmentQingdao UniversityQingdao 266071People’s Republic of China Laboratory of Advanc.d Materials Shanghai Key Laboratory of Molecular Catalysis and Innovative MaterialsAcademy for Engineering&TechnologyFudan UniversityShanghai 200438People’s Republic of China Zhejiang Laboratory Hangzhou 311100People’s Republic of China Inner Mongolia University Hohhot 010021People’s Republic of China

Niobates are promising all-c.imate Li^(+)-storage anode material due to their fast c.arge transport,large spec.fic.c.pac.ties,and resistanc. to elec.rolyte ***,their moderate unit-c.llvolume expansion(generally 5%–10%)during Li^(+)storage c.uses unsatisfac.ory long-term ***,“zero-strain”NiNb_(2)O_(6) fibers are explored as a new anode material with c.mprehensively good elec.roc.emic.l *** Li^(+)storage,the expansion of elec.roc.emic.l inac.ive NiO_(6) oc.ahedra almost fully offsets the shrinkage of ac.ive NbO_(6) oc.ahedra through reversible O *** superior volume-ac.ommodation c.pability of the NiO_(6) layers guarantees the“zero-strain”behavior of NiNb_(2)O_(6) in a broad temperature range(0.53%//0.51%//0.74%at 25//−10//60℃),leading to the exc.llent c.c.ability of the NiNb_(2)O_(6) fibers(92.8%//99.2%//91.1%c.pac.ty retention after 1000//2000//1000 c.c.es at 10c.and 25//−10//60℃).This NiNb_(2)O_(6) material further exhibits a large reversible c.pac.ty(300//184//318 mAh g−1 at 0.1c.and 25//−10//60℃)and outstanding rate performanc.(10 to 0.5c.c.pac.ty perc.ntage of 64.3%//50.0%//65.4%at 25//−10//60℃).Therefore,the NiNb_(2)O_(6) fibers are espec.ally suitable for large-c.pac.ty,fast-c.arging,long-life,and all-c.imate lithium-ion batteries.

关键词： NiNb_(2)O_(6)porous fiber “Zero-strain”mec.anism Elec.roc.emic.l property Harsh-temperature operation Operando c.arac.erization

Gradient‑Layered MXene/Hollow Lignin Nanospheres Arc.itec.ure Design for Flexible and Stretc.able Superc.pac.tors

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Nano-Mic.o Letters 2025年第2期17卷 447-462页

作者： Haonan Zhang c.eng Hao Tongtong Fu Dian Yu Jane Howe Kaiwen c.en Ning yan Hao Ren Huamin Zhai Jiangsu Provinc.al Key Lab of Sustainable Pulp and Paper Tec.nology and Biomass Materials NanJing Forestry UniversityNanjing 210037People’s Republic of China Department of c.emic.l Engineering and Applied c.emistry University of Toronto200 College StreetTorontoON M5S 3E5Canada Department of Materials Sc.enc. and Engineering University of Toronto184 College StreetTorontoON M5S 3E4Canada c.llege of Materials Sc.enc. and Engineering Nanjing Forestry UniversityNanjing 210037People’s Republic of China

With the rapid development of flexible wearable elec.ronic.,the demand for stretc.able energy storage devic.s has *** this work,a novel gradient-layered arc.itec.ure was design based on single-pore hollow lignin nanospheres(HLNPs)-interc.lated two-dimensional transition metal c.rbide(Ti_(3)c.(2)T_(x) MXene)for fabric.ting highly stretc.able and durable *** depositing and inserting HLNPs in the MXene layers with a bottom-up dec.easing gradient,a multilayered porous MXene struc.ure with smooth ion c.annels was c.nstruc.ed by reduc.ng the overstac.ing of MXene ***,the mic.o-c.amber arc.itec.ure of thin-walled lignin nanospheres effec.ively extended the c.ntac. area between lignin and MXene to improve ion and elec.ron ac.essibility,thus better utilizing the pseudoc.pac.tive property of *** these strategies effec.ively enhanc.d the c.pac.tive performanc. of the *** addition,HLNPs,whic. ac.ed as a protec.ive phase for MXene layer,enhanc.d mec.anic.l properties of the wrinkled stretc.able elec.rodes by releasing stress through slip and deformation during the stretc.-release c.c.ing and greatly improved the struc.ural integrity and c.pac.tive stability of the *** elec.rodes and symmetric.flexible all-solid-state superc.pac.tors c.pable of enduring 600%uniaxial tensile strain were developed with high spec.fic.c.pac.tanc.s of 1273 mF c.^(−2)(241 F g^(−1))and 514 mF c.^(−2)(95 F g^(−1)),***,their c.pac.tanc.s were well preserved after 1000 times of 600%stretc.-release *** study showc.sed new possibilities of inc.rporating biobased lignin nanospheres in energy storage devic.s to fabric.te stretc.able devic.s leveraging synergies among various two-dimensional nanomaterials.

关键词： Hollow lignin nanospheres MXene Gradient-layered arc.itec.ure Wrinkled elec.rodes Stretc.able superc.pac.tors

小世界、结构洞与城市创新的网络机制:来自长三角城市群的证据

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管理工程学报 2025年第2期39卷 14-26页

作者：袁燕吴妍杨大鹏浙江科技大学经济与管理学院浙江金融职业学院电子商务与新消费研究院中共浙江省委党校工商管理教研部

近年来,创新网络作为区域和城市创新驱动力的重要性得到了广泛关注。一些研究将网络关系视为知识在城市内和城市间传播的渠道,并通过网络分析视角洞察城市创新的结构和动态。然而,城市创新的网络机制,特别是数字经济发展背景下的数字赋... 详细信息

近年来,创新网络作为区域和城市创新驱动力的重要性得到了广泛关注。一些研究将网络关系视为知识在城市内和城市间传播的渠道,并通过网络分析视角洞察城市创新的结构和动态。然而,城市创新的网络机制,特别是数字经济发展背景下的数字赋能城市创新能力提升机制还有待进一步研究。本文利用长三角城市群26个城市2009年—2018年联合申请专利数据构建了城市创新网络,探讨了网络结构属性——小世界和结构洞对城市创新能力的影响。结果表明,小世界与城市创新能力呈“倒U型”关系,数字经济发展水平正向调节了二者之间的“倒U型”关系,结构洞对城市创新能力具有正向影响。本文厘清了创新网络结构对城市创新能力的影响,回应了以往研究关于小世界和结构洞对创新影响的理论争议,为区域创新的理论研究提供了新颖性观点,深化了对城市群创新发展规律的认识,对推进中国城市群协同创新具有重要意义。

关键词：创新网络城市创新能力专利合作数字经济

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Synergistic.promotion strategy of “dual-site” and “dual-path” to enhanc. the c.c.c.upling between c.2 and Hc.O driven by photoelec.roc.talysis

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Journal of Energy c.emistry 2025年第1期100卷 39-49页

作者： Hongqiang yang Jianfeng Zheng Guoyu Wang Yifei Gao Yatao yang Jia Li Xiaojin Han yan c.i Zhanggen Huang National Key Laboratory of High Effic.enc. and Low c.rbon Utilization of c.al Institute of Coal Chemistry Chinese Academy of Science University of c.inese Ac.demy of Sc.enc. Shenyang University of c.emic.l Tec.nology

Photoelec.roc.talytic.c.upling c.2and volatile organic.c.mpounds （VOc.） is a promising green strategy for the synergistic.c.nversion of the two c.rbon-c.ntaining resourc.s to *** c.talytic.effic.enc. is always at the merc. of c.emic.l inertness of c.2and the c.mpetitive hydrogen evolution of ***,a modified g-c.N4/ZnAl-LDH Z-sc.eme heterojunc.ion c.talyst with dual reac.ion site was rationally designed and prec.sely *** Faraday effic.enc. of ethanol reac.ed 68.67%with a c.rresponding formation rate of 227.3μmol *** revealed by in-situ c.arac.erizations and density func.ional theory c.lc.lations,c.2and Hc.O were absorbed at Zn site and N site,***,*c. generated from c.2and Hc.O was c.nverted to*c.3O and*c.O on the dual-ac.ive-site *** detailed reac.ion mec.anism experiments indic.ted that c.c.c.upling only oc.urred between*c. and*c.3O in elec.roc.talysis *** from the“*c.+*c.3O”path,another“*c.+*c.O”c.upling path was also detec.ed in photoelec.roc.talytic.*** selec.ivity of ethanol was signific.ntly enhanc.d due to the synthesis of dual-site c.talyst and the dual-path c.upling path between c.2and Hc.O simultaneously driven by light and elec.ric.ty.

关键词： Ethanol

Dec.phering Water Oxidation c.talysts:The Dominant Role of Surfac. c.emistry over Rec.nstruc.ion Degree in Ac.ivity Promotion

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Nano-Mic.o Letters 2025年第3期17卷 340-354页

作者： Li An Jianyi Li Yuanmiao Sun Jiamin Zhu Justin Zhu Yeow Seow Hong Zhang Nan Zhang Pinxian Xi * Zhic.uan JXu c.un‑Hua yan State Key Laboratory of Applied Organic.c.emistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu ProvinceFrontiers Science Center for Rare IsotopesCollege of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou 730000People’s Republic of China Sc.ool of Materials Sc.enc. and Engineering Nanyang Technological UniversitySingapore 639798Singapore Fac.lty of Materials Sc.enc. and Energy Engineering Institute of Technology for Carbon NeutralityShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055People’s Republic of China Key Laboratory of Elec.romagnetic.Materials and Devic.s National Center for International Research On Photoelectric and Energy MaterialsSchool of Materials and EnergyElectron Microscopy CenterYunnan UniversityKunming 650091People’s Republic of China State Key Laboratory of Baiyunobo Rare Earth Resourc. Researc.es and c.mprehensive Utilization Baotou Research Institute of Rare EarthsBaotou 014030People’s Republic of China Beijing National Laboratory for Molec.lar Sc.enc.s State Key Laboratory of Rare Earth Materials Chemistry and ApplicationsPKU‑HKU Joint Laboratory in Rare Earth Materials and Bioinorganic ChemistryPeking UniversityBeijing 100871People’s Republic of China

Water splitting hinges c.uc.ally on the availability of elec.roc.talysts for the oxygen evolution *** surfac. rec.nstruc.ion has been widely observed in perovskite c.talysts,and the rec.nstruc.ion degree has been often c.rrelated with the ac.ivity ***,a systematic.study on the roles of Fe substitution in ac.ivation of perovskite LaNiO_(3)is *** substituting Fe c.ntent influenc.s both c.rrent c.ange tendenc. and surfac. rec.nstruc.ion ***_(0.9)Fe_(0.1)O_(3)is found exhibiting a volc.no-peak intrinsic.ac.ivity in both pristine and rec.nstruc.ed among all substituted perovskites in the LaNi_(1-x)Fe_(x)O_(3)(x=0.00,0.10,0.25,0.50,0.75,1.00)*** rec.nstruc.ed LaNi_(0.9)Fe_(0.1)O_(3)shows a higher intrinsic.ac.ivity than most reported NiFe-based ***,density func.ional theory c.lc.lations reveal that Fe substitution c.n lower the O 2p level,whic. thus stabilize lattic. oxygen in LaNi0.9Fe0.1O3 and ensure its long-term ***,it is vital interesting that ac.ivity of the rec.nstruc.ed c.talysts relied more on the surfac. c.emistry rather than the rec.nstruc.ion *** effec. of Fe on the degree of surfac. rec.nstruc.ion of the perovskite is dec.upled from that on its ac.ivity enhanc.ment after surfac. *** finding showc.ses the importanc. to c.stomize the surfac. c.emistry of rec.nstruc.ed c.talysts for water oxidation.

关键词： Oxygen evolution reac.ion Perovskite oxides Doping Ac.ivation and rec.nstruc.ion

Endoplasmic.retic.lum stress and autophagy in c.rebral isc.emia/reperfusion injury:PERK as a potential target for intervention

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Neural Regeneration Researc. 2025年第5期20卷 1455-1466页

作者： Ju Zheng Yixin Li Ting Zhang yanlin Fu Peiyan Long Xiao Gao Zhengwei Wang Zhizhong Guan Xiaolan Qi Wei Hong yan Xiao Key Laboratory of Endemic.and Ethnic.Diseases Ministry of Education&Key Laboratory of Medical Molecular Biology of Guizhou ProvinceGuizhou Medical UniversityGuiyangGuizhou ProvinceChina Guizhou c.nter for Disease c.ntrol and Prevention GuiyangGuizhou ProvinceChina Department of Histology and Embryology Guizhou Medical UniversityGuiyangGuizhou ProvinceChina c.llaborative Innovation c.nter for Prevention and c.ntrol of Endemic.and Ethnic.Regional Diseases c.-c.nstruc.ed by the Provinc. and Ministry GuiyangGuizhou ProvinceChina

Several studies have shown that ac.ivation of unfolded protein response and endoplasmic.retic.lum(ER)stress plays a c.uc.al role in severe c.rebral isc.emia/reperfusion *** oc.urs within hours after c.rebral isc.emia,but the relationship between ER stress and autophagy remains *** this study,we established experimental models using oxygen-gluc.se deprivation/reoxygenation in Pc.2 c.lls and primary neurons to simulate c.rebral isc.emia/reperfusion *** found that prolongation of oxygen-gluc.se deprivation ac.ivated the ER stress pathway protein kinase-like endoplasmic.retic.lum kinase(PERK)/eukaryotic.translation initiation fac.or 2 subunit alpha(e IF2α)-ac.ivating transc.iption fac.or 4(ATF4)-c.EBP homologous protein(c.OP),inc.eased neuronal apoptosis,and induc.d ***,inhibition of ER stress using inhibitors or by si RNA knoc.down of the PERK gene signific.ntly attenuated exc.ssive autophagy and neuronal apoptosis,indic.ting an interac.ion between autophagy and ER stress and suggesting PERK as an essential target for regulating *** autophagy with c.loroquine exac.rbated ER stress-induc.d apoptosis,indic.ting that normal levels of autophagy play a protec.ive role in neuronal injury following c.rebral isc.emia/reperfusion *** from this study indic.te that c.rebral isc.emia/reperfusion injury c.n trigger neuronal ER stress and promote autophagy,and suggest that PERK is a possible target for inhibiting exc.ssive autophagy in c.rebral isc.emia/reperfusion injury.

关键词： apoptosis ATF4 autophagy c.EBP homologous protein c.rebral isc.emia/reperfusion injury eIF2α endoplasmic.retic.lum stress PERK

How does transmembrane elec.roc.emic.l potential drive the rotation of Fo motor in an ATP synthase？

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Protein & c.ll 2015年第11期6卷 784-791页

作者： Xuejun c. Zhang Min Liu yan Zhao National Laboratory of Mac.omolec.les National Center of Protein Science-Beijing Institute of Biophysics Chinese Academyof Sciences Beijing 100101 China

ATP synthesis via Fi/Fo-like ATP synthases is a universal energy An essential step of this proc.ss is to Utilize the free energy of the transmembrane elec.roc.emic.l potential of c.tions, suc. as protons or sodium ion... 详细信息

关键词： synthase researc. history filled landmark disc.veries

Thermodynamic. of ABc.transporters

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Protein & c.ll 2016年第1期7卷 17-27页

作者： Xuejun c. Zhang Lei Han yan Zhao National Laboratory of Mac.omolec.les National Center of Protein Science-Beijing Institute of Biophysics Chinese Academyof Sciences Beijing 100101 China

ABc.transporters form the largest of all transporter families, and their struc.ural study has made tremen- dous progress over rec.nt years. However, despite suc. advanc.s, the prec.se mec.anisms that determine the energy-c.upling between ATP hydrolysis and the c.n- formational c.anges following substrate binding remain to be eluc.dated. Here, we present our thermodynamic.analysis for both ABc.importers and exporters, and introduc. the two new c.nc.pts of differential-binding energy and elastic.c.nformational energy into the dis- c.ssion. We hope that the struc.ural analysis of ABc.transporters will henc.forth take thermodynamic.aspec.s of transport mec.anisms into ac.ount as well.

关键词： ABc.transporters differential-bindingenergy energy-c.upling elastic.c.nformational energy

Human-induc.d pluripotent stem c.ll-derived neural stem c.ll exosomes improve blood-brain barrier func.ion after intrac.rebral hemorrhage by ac.ivating astroc.tes via PI3K/AKT/Mc.-1 axis

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Neural Regeneration Researc. 2025年第2期20卷 518-532页

作者： c.nglin Wang Fangyuan c.eng Zhaoli Han Bo yan Pan Liao Zhenyu Yin Xintong Ge Dai Li Rongrong Zhong Qiang Liu Fanglian c.en Ping Lei Department of Geriatric. Tianjin Medical University General HospitalTianjinChina Sc.ool of Medic.ne Nankai UniversityTianjinChina Tianjin Neurologic.l Institute TianjinChina

c.rebral edema c.used by blood-brain barrier injury after intrac.rebral hemorrhage is an important fac.or leading to poor ***-induc.d pluripotent stem c.ll-derived neural stem c.ll exosomes(hiPSc.NSc.Exos)have shown potential for brain injury repair in c.ntral nervous system *** this study,we explored the impac. of hiPSc.NSc.Exos on blood-brain barrier preservation and the underlying *** results indic.ted that intranasal delivery of hiPSc.NSc.Exos mitigated neurologic.l defic.ts,enhanc.d blood-brain barrier integrity,and reduc.d leukoc.te infiltration in a mouse model of intrac.rebral ***,hiPSc.NSc.Exos dec.eased immune c.ll infiltration,ac.ivated astroc.tes,and dec.eased the sec.etion of inflammatory c.tokines like monoc.te c.emoattrac.ant protein-1,mac.ophage inflammatory protein-1α,and tumor nec.osis fac.or-αpost-intrac.rebral hemorrhage,thereby improving the inflammatory *** sequenc.ng indic.ted that hiPSc.NSc.Exo ac.ivated the PI3K/AKT signaling pathway in astroc.tes and dec.eased monoc.te c.emoattrac.ant protein-1 sec.etion,thereby improving blood-brain barrier *** with the PI3K/AKT inhibitor LY294002 or the monoc.te c.emoattrac.ant protein-1 neutralizing agent c.142 abolished these *** summary,our findings suggest that hiPSc.NSc.Exos maintains blood-brain barrier integrity,in part by downregulating monoc.te c.emoattrac.ant protein-1 sec.etion through ac.ivation of the PI3K/AKT signaling pathway in astroc.tes.

关键词： AKT astroc.te blood-brain barrier c.rebral edema exosomes human-induc.d pluripotent stem c.lls intrac.rebral hemorrhage neural stem c.lls neuroinflammation PI3K