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Are TrkB receptor agonists the right tool to fulfill the promises for a therapeutic value of the brain-derived neurotrophic factor?

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Neural Regeneration research 2024年第1期19卷 29-34页

作者： Marta Zagrebelsky Martin Korte Division of Cellular Neurobiology Zoological InstituteTU BraunschweigBraunschweigGermany Helmholtz Centre for Infection research AG NINDBraunschweigGermany

Brain-derived neurotrophic factor signaling via its receptor tro pomyosin receptor kinase B regulates several crucial physiological *** has been shown to act in the brain,promoting neuronal survival,growth,and plasticity as well as in the rest of the body where it is involved in regulating for instance aspects of the *** to its crucial and very pleiotro pic activity,reduction of brain-derived neurotrophic factor levels and alterations in the brain-derived neurotrophic factor/tropomyosin receptor kinase B signaling have been found to be associated with a wide spectrum of neurological *** r,because of its poor bioavailability and pharmacological properties,brain-derived neurotrophic factor itself has a very low therapeutic ***,the concomitant binding of exogenous brain-derived neurotrophic factor to the p75 neurotrophin receptor has the potential to elicit several unwanted and deleterious side *** re,developing tools and approaches to specifically promote tropomyosin receptor kinase B signaling has become an important goal of translational *** the newly developed tools are different categories of tropomyosin receptor kinase B receptor agonist *** this review,we give a comprehensive description of the diffe rent tro pomyosin receptor kinase B receptor agonist drugs developed so far and of the res ults of their application in animal models of several neurological ***,we discuss the main benefits of tropomyosin receptor kinase B receptor agonists,concentrating especially on the new tropomyosin receptor kinase B agonist *** benefits observed both in vitro and in vivo upon application of tropomyosin receptor kinase B receptor agonist drugs seem to predominantly depend on their general neuroprotective activity and their ability to promote neuronal ***,tro pomyosin receptor kinase B agonist antibodies have been shown to specifically bind the tropomyosin recepto

关键词： Alzheimer's disease brain-derived neurotrophic factor depression Parkinson's disease tropomyosin receptor kinase B receptor

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Weatherability and heat resistance enhanced by interaction between ag25 and Mg/AI-LDH

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Rare Metals 2024年第6期43卷 2758-2768页

作者： Pei-Yao Yang Xiang-Cui Liu Yu-Chao Wang Huan-Ran Zheng Jin-Xian Wang Jia-Yi Zheng Meng-Jie Liu Dan-Ni Deng Yu Bai Ying-Bi Chen Tong Zhang Zhi-Ming Liu Yong-Peng Lei State Key Laboratory of Powder Metallurgy Powder Metallurgy Research InstituteCentral South UniversityChangsha 410083China research institute of Chemical Defense Beijing 102205China

Although inorganic pigments in common spectral tuning materials show good weatherability and heat resistance,the limited color choices,weak coloring power,poor dispersibility,and a possibility of toxicity limit their *** the basis of organic pigments which possess a wide range of colors,high coloring power,good transparency,and high safety,herein,the modified pigment and biomimetic coating with improved weatherability,especially ultraviolet(UV)resistance(from 2 to 6 days),was achieved by intercalating acid green 25(ag25)pigment into Mg/Al-layered double hydroxides(Mg/Al-LDH).Furthermore,the heat resistance of ag25 was also significantly ***,the spectral stability of pigments after heat treatment is superior with almost unchanged spectral profile and green reflection *** formation of strong N-H bonds and the S-M(Mg,Al)bonds between Mg/Al-LDH laminates and ag25 molecules contributes to the *** work shows potential for biomimetic leaf materials in respect of reflective spectra stability.

关键词： Layered double hydroxide Biomimetic Acid green 25 Interaction Weatherability Heat resistance

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Photo-responsive functional materials based on light-driven molecular motors

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Light(Science & Applications) 2024年第3期13卷 407-420页

作者： Yanping Deng Guiying Long Yang Zhang Wei Zhao Guofu Zhou Ben L.Feringa Jiawen Chen SCNU-UG International Joint Laboratory of Molecular Science and Displays National Center for International Research on Green OptoelectronicsSouth China Normal UniversityGuangzhou 510006China Stratingh institute for Chemistry University of GroningenNijenborgh 49747AG GroningenThe Netherlands

In the past two decades,the research and development of light-triggered molecular machines have mainly focused on developing molecular devices at the nanoscale.A key scientific issue in the field is how to amplify the controlled motion of molecules at the nanoscale along multiple length scales,such as the mesoscopic or the macroscopic scale,or in a more practical perspective,how to convert molecular motion into changes of properties of a macroscopic ***-driven molecular motors are able to perform repetitive unidirectional rotation upon irradiation,which offers unique opportunities for responsive macroscopic *** several reviews that focus on the design,synthesis and operation of the motors at the nanoscale,photo-responsive macroscopic materials based on light-driven molecular motors have not been comprehensively *** the present review,we first discuss the strategy of confining absolute molecular rotation into relative rotation by grafting motors on ***,examples of self-assemble motors in supramolecular polymers with high internal order are ***,we will focus on building of motors in a covalently linked system such as polymeric gels and polymeric liquid crystals to generate complex responsive ***,a perspective toward future developments and opportunities is *** review helps us getting a more and more clear picture and understanding on how complex movement can be programmed in light-responsive systems and how man-made adaptive materials can be invented,which can serve as an important guideline for further design of complex and advanced responsive materials.

关键词： functions materials material

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Hydrodynamic function and spring constant calibration of FluidFM micropipette cantilevers

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Microsystems & Nanoengineering 2024年第1期10卷 277-286页

作者： Attila Bonyár Ágoston G.Nagy Hans Gunstheimer Gotthold Fläschner Robert Horvath Department of Electronics Technology Faculty of Electrical Engineering and InformaticsBudapest University of Technology and EconomicsBudapestHungary Nanobiosensorics Laboratory Institute of Technical Physics and Materials ScienceCentre for Energy ResearchHUN-RENBudapestHungary Nanosurf ag Gräubernstrasse 12CH-4410 LiestalSwitzerland

Fluidic force microscopy(FluidFM)fuses the force sensitivity of atomic force microscopy with the manipulation capabilities of microfluidics by using microfabricated cantilevers with embedded fluidic *** innovation initiated new research and development directions in biology,biophysics,and material *** acquire reliable and reproducible data,the calibration of the force sensor is ***,the hollow FluidFM cantilevers contain a row of parallel pillars inside a rectangular *** precise spring constant calibration of the internally structured cantilever is far from trivial,and existing methods generally assume simplifications that are not applicable to these special types of *** addition,the Sader method,which is currently implemented by the FluidFM community,relies on the precise measurement of the quality factor,which renders the calibration of the spring constant sensitive to *** this study,the hydrodynamic function of these special types of hollow cantilevers was experimentally determined with different *** on the hydrodynamic function,a novel spring constant calibration method was adapted,which relied only on the two resonance frequencies of the cantilever,measured in air and in a *** on these results,our proposed method can be successfully used for the reliable,noise-free calibration of hollow FluidFM cantilevers.

关键词： spring cantilever function

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Induced pluripotent stem cells(iPSCs):molecular mechanisms of induction and applications

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Signal Transduction and Targeted Therapy 2024年第5期9卷 2065-2090页

作者： Jonas Cerneckis Hongxia Cai Yanhong Shi Department of Neurodegenerative Diseases Beckman Research Institute of City of HopeDuarteCA 91010USA Irell&Manella Graduate School of Biological Sciences Beckman Research Institute of City of HopeDuarteCA 91010USA

The induced pluripotent stem cell(iPSC)technology has transformed in vitro research and holds great promise to advance regenerative *** have the capacity for an almost unlimited expansion,are amenable to genetic engineering,and can be differentiated into most somatic cell *** have been widely applied to model human development and diseases,perform drug screening,and develop cell *** this review,we outline key developments in the iPSC field and highlight the immense versatility of the iPSC technology for in vitro modeling and therapeutic *** begin by discussing the pivotal discoveries that revealed the potential of a somatic cell nucleus for reprogramming and led to successful generation of *** consider the molecular mechanisms and dynamics of somatic cell reprogramming as well as the numerous methods available to induce ***,we discuss various iPSC-based cellular models,from mono-cultures of a single cell type to complex three-dimensional organoids,and how these models can be applied to elucidate the mechanisms of human development and *** use examples of neurological disorders,coronavirus disease 2019(COVID-19),and cancer to highlight the diversity of disease-specific phenotypes that can be modeled using iPSC-derived *** also consider how iPSC-derived cellular models can be used in high-throughput drug screening and drug toxicity ***,we discuss the process of developing autologous and allogeneic iPSC-based cell therapies and their potential to alleviate human diseases.

关键词： mechanisms programming holds

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2.32W anti-misaligned Er:Luag single-longitudinal-mode laser in the double corner-cube-retroreflector resonator and MOPA system

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Chinese Optics Letters 2024年第2期22卷 114-119页

作者：范佳玮鞠有伦姜辰晨袁越闫东杨星帮段小明戴通宇姚宝权吴佳泽 National Key Laboratory of Tunable Laser Technology Harbin Institute of TechnologyHarbin 150001China Department of Physics and Chemistry PLA Army Academy of Special OperationsGuangzhou 510507China Zhengzhou research institute of Harbin institute of Technology Zhengzhou 450000China

We demonstrate a high power,Er:Lu ag single-longitudinal-mode laser in an anti-misaligned *** on the Faraday effect,a 1.61 W single-longitudinal-mode(SLM)laser is obtained with the double corner-cube-retroreflector(CCR)structure,and the tunable wavelength is 1649.2-1650.3 ***,we investigate the anti-misalignment characteristics when the CCR moves and rotates along the optical ***,by utilizing the Er:Lu ag amplifier,the maximum 2.32 W single-longitudinal-mode laser at 1649.6 nm is *** beam quality factors M^(2) of the 2.32 W Er:Lu ag single-longitudinal-mode laser are 1.23 and 1.25 along the horizontal(x)and vertical(y)directions,respectively.

关键词： Er:Lu ag single-longitudinal-mode laser Faraday effect MOPA system double corner-cube-retroreflector resonator

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Ti_(3)C_(2)T_(x)MXene wrapped,carbon-coated porous Si sheets for improved lithium storage performance

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Chinese Chemical Letters 2024年第2期35卷 617-621页

作者： Hui Cheng Yueming Liu Zhongling Cheng Xianying Wang Na Huang Haijiao Zhang institute of Nanochemistry and Nanobiology School of Environmental and Chemical EngineeringShanghai UniversityShanghai 200444China Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular EngineeringEast China Normal UniversityShanghai 200062China Energy Materials research Center ag Hydrogen Materials & Devices CAS Key Laboratory of Materials for Energy ConversionShanghai Institute of CeramicsChinese Academy of Sciences (SICCAS)Shanghai 200050China

Si-based materials have shown great potential as lithium-ion batteries(LIBs)anodes due to their natural reserves and high theoretical ***,the large volume changes during cycles and poor conductivity of Si lead to rapid capacity decay and poor cycling stability,ultimately limiting their commercial ***,we have skillfully utilized the microporous MCM-22 zeolite as the unique silicon source to produce porous Si(pSi)sheets by a simple magnesiothermic reduction,followed by a carbon coating and further Ti_(3)C_(2)T_(x)MXene assembly,obtaining the ternary pSi@NC@TNSs *** the design,porous Si sheets provide more active sites and shorten Li-ion transport paths for electrochemical *** N-doped carbon(NC)layer serves as a bonding layer to couple pSi and Ti_(3)C_(2)T_(x).The conductive network formed by 2D Ti_(3)C_(2)T_(x)and medium NC layer effectively enhances the overall charge transport of the electrode material,and helps to stabilize the electrode ***,the as-made pSi@NC@TNSs anode delivers an improved lithium storage performance,exhibiting a high reversible capacity of 925 mAh/g at 0.5 A/g after 100 *** present strategy provides an effective way towards high-performance Si-based anodes for LIBs.

关键词： Si anodes Ti_(3)C_(2)Ti_(x)MXene Porous structure Interfacial assembly Lithium-ion batteries

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An overview and experimental analysis of WO3/TiO2 composite with enhanced electrochromic properties for smart windows application

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Tungsten 2024年第4期6卷 732-747页

作者： Ayesha Khan Mayur A.Gaikwad Jin Hyeok Kim Anamika Kadam The institute of Science Dr.Homi Bhabha State University Optoelectronics Convergence research Center and Department of Materials Science and Engineering Chonnam National University

Internationally,standards for electrochromic（EC） requirements in smart window applications have been established,with ongoing global initiatives aimed at elevating them to highly advanced *** paper covers a comprehensive investigation of the structural,optical,morphological,and electrochemical properties of WO3/TiO2composite ***,an experimental analysis of WO3/TiO2was envisaged by a two-step ***,WO3thin films were hydrothermally deposited onto indium-doped tin oxide-coated glass substrates using an aqueous solution of Na2WO4·2H2O at a pH value of ***,a layer of TiO2was electrodeposited onto the WO3thin films.X-ray diffraction analysis confirmed the successful formation of WO3/TiO2composite films,with the WO3phase exhibiting a hexagonal tunnel *** electron microscopy revealed the formation of porous nanorods（NRs） of WO3,uniformly coated with TiO2,resulting in a porous morphology of the WO./*** EC performance of the WO3/TiO2films was thoroughly assessed through cyclic voltammetry and chronoamperometry measurements over a potential window ranging from-2.0 to+1.2 V（versus ag/agCl） in a 0.5 mol·L-1LiClO4-PC *** WO3/TiO2composite films exhibited cathodic electrochromism,characterized by a reversible color change from dark blue to *** improved EC performance in comparison to pure WO3films is attributed to enhanced double ion/electron insertion and extraction ***,the WO3/TiO2composite films demonstrated excellent optical modulation properties,with a significant modulation at 633 nm（46.87%）.The coloration efficiency reached a high value of 193.25 cm2·C-1,indicating their potential for practical EC ***,the WO3/TiO2composite films displayed exceptional EC stability,with no significant degradation observed over 2500 cyclic voltammetry *** superior EC performance can be attributed to the synergistic effect between the hexagonal WO3NRs

关键词： Electrochromism Smart window Stability WO3/TiO2

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A high-performance electrochromic device assembled with WO_(3)/ag and TiO_(2)/NiO composite electrodes towards smart window

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Frontiers of Materials Science 2024年第1期18卷 123-135页

作者： Haorui Liu Jikai Yang Decai Nie Chunlei Liu Liumenghan Zheng Yining Mu Weijun Chen Chongqing research institute Changchun University of Science and TechnologyChongqing 400000China School of Physics Changchun University of Science and TechnologyChangchun 130022China

The choice of cathode and anode materials for electrochromic devices plays a key role in the performance of electrochromic smart *** this research,WO_(3)/ag and TiO_(2)/NiO composite thin films were separately prepared by the hydrothermal method combined with *** electrochromic properties of the single WO_(3) thin film were optimized,and TiO_(2)/NiO composite films showed better electrochromic performance than that of the single NiO ***_(3)/ag and TiO_(2)/NiO composite films with excellent electrochromic properties were respectively chosen as the cathode and the anode to construct a WO_(3)/ag‒TiO_(2)/NiO electrochromic *** response time(tc=4.08 s,tb=1.08 s),optical modulation range(35.91%),and coloration efficiency(30.37 cm^(2)·C^(-1))of this electrochromic device are better than those of WO_(3)-NiO and WO_(3)/ag-NiO electrochromic *** work provides a novel research idea for the performance enhancement of electrochromic smart windows.

关键词： WO_(3)/ag composite film TiO_(2)/NiO composite film electrochromic device

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A stable radiochromic semiconductive viologen-based metal-organic framework for dual-mode direct X-ray detection

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Chinese Chemical Letters 2024年第9期35卷 437-441页

作者： Xuying Yu Jiarong Mi Yulan Han Cai Sun Mingsheng Wang Guocong Guo State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350608China College of Chemistry Fuzhou UniversityFuzhou 350108China University of Chinese Academy of Sciences Beijing 100049China School of Chemistry and Chemical Engineering Queen’s University BelfastBelfast BT95AGUnited Kingdom

Direct X-ray detectors,which directly convert X-rays into electrical signals through semiconductors,have higher space solution than scintillator-mediated indirect X-ray ones and are high desirable for early cancer detection and other applications,but the mainstream commercialα-Se detector is still largely limited by high production costs,large leakage current and low *** article reports an easily prepared,stable radiochromic semiconductive metal–organic framework(MOF),(MV)[Cd_(3)(tdc)_(4)]·2H_(2)O(RCS-1,H_(2)tdc=2,5-thiophenedicarboxylic acid;MV^(2+)=methyl viologen cation)with direct X-ray detecting *** a large bulk resistivity of 8.40×10^(9)Ωcm,this material ensures minimal dark current and low noise for X-ray ***,it exhibits higher sensitivity to W KαX-rays(98.58μC Gy^(-1)cm^(-2))thanα-Se(~20μC Gy^(-1)cm^(-2)).Meanwhile,unlike most reported direct X-ray detecting semiconductors,compound RCS-1 shows remarkable color change upon X-ray irradiation owing to the presence of photochromism-active viologen *** feature offers an appealing visual detecting ability to direct X-ray detectors that provide only the electrical signals.

关键词： Metal-organic framework Viologen Photochromism Conductance X-ray detection

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