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Graphene-confined ultrafast radiant heating for high-loading subnanometer metal cluster catalysts

National science Review 2023年第6期10卷 191-199页

作者： Ye-Chuang Han Jun Yi Beibei Pang Ning Wang Xu-Cheng Li Tao Yao Kostya S.Novoselov Zhong-Qun Tian State Key Laboratory of Physical Chemistry of Solid Surfaces College of Chemistry and Chemical Engineering Graphene Industry and Engineering Research Institute School of Electronic Science and Engineering Xiamen University Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM) National Synchrotron Radiation Laboratory University of Science and Technology of China Faculty of Environment and Life Beijing University of Technology Institute for Functional Intelligent Materials National University of Singapore

Thermally activated ultrafast diffusion,collision and combination of metal atoms comprise the fundamental processes of synthesizing burgeoning subnanometer metal clusters for diverse ***,so far,no method has allowed the kinetically controllable synthesis of subnanometer metal clusters without compromising metal ***,we have developed,for the first time,a graphene-confined ultrafast radiant heating(GCURH) method for the synthesis of high-loading metal cluster catalysts in microseconds,where the impermeable and flexible graphene acts as a diffusion-constrained nanoreactor for high-temperature *** from graphene-mediated ultrafast and efficient laser-to-thermal conversion,the GCURH method is capable of providing a record-high heating and cooling rate of～10～9℃/s and a peak temperature above 2000 ℃,and the diffusion of thermally activated atoms is spatially limited within the confinement of the graphene *** a result,due to the kinetics-dominant and diffusion-constrained condition provided by GCURH,subnanometer Co cluster catalysts with high metal loading up to 27.1 wt% have been synthesized by pyrolyzing a Co-based metal-organic framework(MOF)in microseconds,representing one of the highest size-loading combinations and the quickest rate for MOF pyrolysis in the reported *** obtained Co cluster catalyst not only exhibits an extraordinary activity similar to that of most modern multicomponent noble metal counterparts in the electro catalytic oxygen evolution reaction,but is also highly convenient for catalyst recycling and refining due to its single metal *** a novel GCURH technique paves the way for the kinetically regulated,limited diffusion distance of thermally activated atoms,which in turn provides enormous opportunities for the development of sophisticated and environmentally sustainable metal cluster catalysts.

关键词： photothermal conversion ultrafast radiant heating graphene-confined high-loading metal clusters solid catalysts

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The Pathology of Primary Familial Brain Calcification:Implications for Treatment

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Neuroscience Bulletin 2023年第4期39卷 659-674页

作者： Xuan Xu Hao Sun Junyu Luo Xuewen Cheng Wenqi Lv Wei Luo Wan-Jin Chen Zhi-Qi Xiong Jing-Yu Liu Institute of Neuroscience State Key Laboratory of NeuroscienceCenter for Excellence in Brain Science and Intelligence TechnologyChinese Academy of SciencesShanghai200031China College of Life Science and Technology Huazhong University of Science and TechnologyWuhan430074China Department of Neurology and Institute of Neurology of First Affiliated Hospital Institute of Neuroscienceand Fujian Key Laboratory of Molecular NeurologyFujian Medical UniversityFuzhou350005China Department of Neurology The Second Affiliated HospitalZhejiang University School of MedicineHangzhou310009China

Primary familial brain calcification(PFBC)is an inherited neurodegenerative disorder mainly characterized by progressive calcium deposition bilaterally in the brain,accompanied by various symptoms,such as dystonia,ataxia,parkinsonism,dementia,depression,headaches,and ***,the etiology of PFBC is largely unknown,and no specific prevention or treatment is *** the past 10 years,six causative genes(SLC20A2,PDGFRB,PDGFB,XPR1,MYORG,and JAM2)have been identified in *** this review,considering mechanistic studies of these genes at the cellular level and in animals,we summarize the pathogenesis and potential preventive and therapeutic strategies for PFBC *** systematic analysis suggests a classification for PFBC genetic etiology based on several characteristics,provides a summary of the known composition of brain calcification,and identifies some potential therapeutic targets for PFBC.

关键词： Primary familial brain calcification Causative gene Pathogenesis Preventive and therapeutic strategy

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Rotor dynamic analysis of supercritical carbon dioxide Bryton cycle coaxial integrated unit 14

Rotor dynamic analysis of supercritical carbon dioxide Bryto...

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14th IEEE Global Reliability and Prognostics and Health Management Conference, PHM-Hangzhou 2023

作者： Xu, Xiaokang Yang, Yi Wang, Jiangfeng Lou, Juwei Chen, Liangqi State Key Laboratory of Multiphase Flow in Power Engineering School of Energy and Power Engineering Xi'an Jiaotong University Xi'an China Laboratory of Science and Technology on Integrated Logistics Support College of Intelligence Science and Technology National University of Defense Technology Changsha China

ISBN: (纸本)9798350301359

The rotor system plays a very important role in supercritical carbon dioxide Brayton cycle system, and its dynamic problem will directly affect the motion stability and safety of the whole unit. In this paper, the rotor dynamic model of supercritical CO2 coaxial unit is established by finite element method, and the critical speed, modal shape and unbalance response of the rotor are studied. The first seven critical speed of the rotor and the first seven natural frequency of the rotor at the working speed are calculated. The bending modal of the rotor and the position where the rotor amplitude is the largest are analyzed, which can provide reference for the optimization design of the rotor stability. The influences of mass unbalances at the operational speed of rotor are analyzed. The research can provide some suggestions for the optimal design and actual operation of the supercritical CO2 coaxial integrated unit. © 2023 IEEE.

关键词： critical speed unbalance response vibration analysis

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Excellent energy storage performance in Bi_(0.5)Na_(0.5)TiO_(3)-based lead-free high-entropy relaxor ferroelectrics via B-site modification

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Journal of Advanced Ceramics 2024年第3期13卷 345-353页

作者： Kaihua Yang Gengguang Luo Li Ma Ruoxuan Che Zhiyi Che Qin Feng Zhenyong Cen Xiyong Chen Jiajun Zhou Nengneng Luo State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures School of ResourcesEnvironment and MaterialsGuangxi UniversityNanning 530004China School of Optical and Electronic Information Key Lab of Functional Materials for Electronic Information(B)of Ministry of EducationHuazhong University of Science and TechnologyWuhan 430074China

Next-generation advanced high/pulsed power capacitors urgently require dielectric materials with outstanding energy storage ***_(0.5)Na_(0.5)TiO_(3)-based lead-free materials exhibit high polarization,but the high remanent polarization and large polarization hysteresis limit their applications in dielectric ***,high-entropy perovskite relaxor ferroelectrics(Na_(0.2)Bi_(0.2)Ba_(0.2)Sr_(0.2)Ca_(0.2))(Ti1-x%Zrx%)O_(3)are designed by adding multiple ions in the A-site and replacing the B-site Ti^(4+)with a certain amount of Zr^(4+).The newly designed system showed high relaxor feature and slim polarization-electric(P-E)***,improved relaxor feature and obviously delayed polarization saturation were found with the increasing of Zr^(4+).Of particular importance is that both high recoverable energy storage density of 6.6 J/cm^(3) and energy efficiency of 93.5%were achieved under 550 kV/cm for the ceramics of x=6,accompanying with excellent frequency stability,appreciable thermal stability,and prosperous discharge *** work not only provides potential dielectric materials for energy storage applications,but also offers an effective strategy to obtain dielectric ceramics with ultrahigh comprehensive energy storage performance to meet the demanding requirements of advanced energy storage applications.

关键词： energy storage density (Bi_(0.5)Na_(0.5))TiO_(3) high-entropy perovskite ceramics polarization saturation relaxor ferroelectrics(RFEs)

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Fusarium graminearum effector FgEC1 targets wheat TaGF14b protein to suppress TaRBOHD-mediated ROS production and promote infection

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Journal of Integrative Plant Biology 2024年第10期66卷 2288-2303页

作者： Shengping Shang Yuhan He Qianyong Hu Ying Fang Shifeng Cheng Cui-Jun Zhang Shenzhen Branch Guangdong Laboratory of Lingnan Modern AgricultureKey Laboratory of Synthetic BiologyMinistry of Agriculture and Rural AffairsAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518120China College of Life Science and Technology Huazhong Agricultural UniversityWuhan 430070China

Fusarium head blight(FHB), caused by Fusarium graminearum, is a devastating disease of wheat globally. However, the molecular mechanisms underlying the interactions between F. graminearum and wheat remain unclear. Here, we identified a secreted effector protein, FgEC1, that is induced during wheat infection and is required for F. graminearum virulence. FgEC1 suppressed flg22-and chitin-induced callose deposition and reactive oxygen species(ROS) burst in Nicotiana benthamiana. FgEC1 directly interacts with TaGF14b, which is upregulated in wheat heads during F. graminearum infection. Overexpression of TaGF14b increases FHB resistance in wheat without compromising yield. TaGF14b interacts with NADPH oxidase respiratory burst oxidase homolog D(TaRBOHD) and protects it against degradation by the 26S proteasome. FgEC1 inhibited the interaction of TaGF14b with TaRBOHD and promoted TaRBOHD degradation, thereby reducing TaRBOHD-mediated ROS *** findings reveal a novel pathogenic mechanism in which a fungal pathogen acts via an effector to reduce TaRBOHD-mediated ROS production.

关键词： effector FHB Fusarium graminearum reactive oxygen species wheat

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Disentangling the Individual-Shared and Individual-Specific Subspace of Altered Brain Functional Connectivity in Autism Spectrum Disorder (Vol 95, pg 870, 2024)

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BIOLOGICAL PSYCHIATRY 2024年第9期95卷 909-909页

作者： Shan [a]Sichuan Provincial Center for Mental Health Sichuan Provincial People's Hospital School of Life Science and Technology University of Electronic Science and Technology of China Chengdu China [b]Ministry of Education Key Lab for Neuroinformation High-Field Magnetic Resonance Brain Imaging Key Laboratory of Sichuan Province University of Electronic Science and Technology of China Chengdu China [c]Department of Psychiatry and Biobehavioral Sciences University of California Los Angeles Los Angeles California [d]College of Blockchain Industry Chengdu University of Information Technology Chengdu China

Background Despite considerable effort toward understanding the neural basis of autism spectrum disorder (ASD) using case-control analyses of resting-state functional magnetic resonance imaging data, findings are often not reproducible, largely due to biological and clinical heterogeneity among individuals with ASD. Thus, exploring the individual-shared and individual-specific altered functional connectivity (AFC) in ASD is important to understand this complex, heterogeneous disorder. Methods We considered 254 individuals with ASD and 295 typically developing individuals from the Autism Brain Imaging Data Exchange to explore the individual-shared and individual-specific subspaces of AFC. First, we computed AFC matrices of individuals with ASD compared with typically developing individuals. Then, common orthogonal basis extraction was used to project AFC of ASD onto 2 subspaces: an individual-shared subspace, which represents altered connectivity patterns shared across ASD, and an individual-specific subspace, which represents the remaining individual characteristics after eliminating the individual-shared altered connectivity patterns. Results Analysis yielded 3 common components spanning the individual-shared subspace. Common components were associated with differences of functional connectivity at the group level. AFC in the individual-specific subspace improved the prediction of clinical symptoms . The default mode network–related and cingulo-opercular network–related magnitudes of AFC in the individual-specific subspace were significantly correlated with symptom severity in social communication deficits and restricted, repetitive behaviors in ASD. Conclusions Our study decomposed AFC of ASD into individual-shared and individual-specific subspaces, highlighting the importance of capturing and capitalizing on individual-specific brain connectivity features for dissecting heterogeneity. Our analysis framework provides a blueprint for parsing heterogeneity in other

关键词： Altered functional connectivity ASD heterogeneity Common orthogonal basis extraction

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Eco-friendly polysaccharide coatings for antifouling and dragreduction and potential application for marine devices

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Friction 2024年第4期12卷 726-744页

作者： Hao YANG Liguo QIN Wenhui ZHAO Fagla Jules MAWIGNON Hui GUO Yongkang WU Yali ZHANG Guangneng DONG Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System Institute of Design Science and Basic ComponentsSchool of Mechanical EngineeringXi’an Jiaotong UniversityXi’an 710049China Key Laboratory of Biomedical Information of Ministry of Education School of Life Science and TechnologyXi’an Jiaotong UniversityXi’an 710049China Department of Endocrinology First Affiliated Hospital of Medical CollegeXi'an Jiaotong UniversityXi’an 710061China

Traditional antifouling agents usually have a certain toxic effect on marine environments and non-target *** this study,Dictyophora indusiata polysaccharide(DIP)was applied as a natural antifouling surface modifier to prepare the surface coating for marine *** DIP coatings were prepared:*** spore polysaccharide(DISP),*** volva polysaccharide(DIVP),and *** embryonic body polysaccharide(DIEP).The antifouling,tribological,and anticorrosion behavior of the coatings were *** revealed that the three kinds of DIP coatings had excellent antifouling properties,which could effectively prevent the adhesion of Chlorella and the attachment of water-based and oily stains on the ***,the coatings showed great mechanical stability and could maintain an extremely low coefficient of friction(COF<0.05)after continuous *** drag reduction rate of the coated surfaces reached 5%,showing a powerful lubrication ***,the DIP coatings presented an outstanding corrosion resistance,where the equivalent circuit impedances were 4-9 orders of magnitude higher than the control *** research showed a promising prospect of surface coating fabrication with DIP for marine devices to achieve the purpose of antifouling and drag reduction.

关键词： Dictyophora indusiata polysaccharide(DIP)coating antifouling anticorrosion lubrication and drag reduction

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HSPA8 acts as an amyloidase to suppress necroptosis by inhibiting and reversing functional amyloid formation

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细胞研究（英文版） 2023年第11期33卷 851-866页

作者： Erpeng Wu Wenyan He Chenlu Wu Zhangcheng Chen Shijie Zhou Xialian Wu Zhiheng Hu Kelong Jia Jiasong Pan Limin Wang Jie Qin Dan Liu Junxia Lu Huayi Wang Jixi Li Sheng Wang Liming Sun State Key Laboratory of Cell Biology Center for Excellence in Molecular Cell ScienceChinese Academy of SciencesUniversity of Chinese Academy of SciencesShanghaiChina State Key Laboratory of Molecular Biology Center for Excellence in Molecular Cell ScienceChinese Academy of SciencesShanghaiChina Key Laboratory of Systems Health Science of Zhejiang Province School of Life ScienceHangzhou Institute for Advanced StudyUniversity of Chinese Academy of SciencesHangzhouChina School of Life Science and Technology ShanghaiTech UniversityShanghaiChina State Key Laboratory of Genetic Engineering School of Life Sciences and Huashan HospitalShanghai Engineering Research Center of Industrial MicroorganismsFudan UniversityShanghaiChina

Ultra-stable fibrous structure is a hallmark of *** contrast to canonical disease-related amyloids,emerging research indicates that a significant number of cellular amyloids,termed'functional amyloids',contribute to signal transduction as temporal signaling hubs in ***,it is unclear how these functional amyloids are effectively disassembled to terminate signal *** motif-containing amyloids,the largest functional amyloid family discovered thus far,play an important role in mediating necroptosis signal transduction in mammalian ***,we identify heat shock protein family A member 8(HSPA8)as a new type of enzyme—which we name as'amyloidase'—that directly disassembles RHIM-amyloids to inhibit necroptosis signaling in cells and *** from its role in chaperone-mediated autophagy where it selects substrates containing a KFERQ-like motif,HSPA8 specifically recognizes RHIM-containing proteins through a hydrophobic hexapeptide motif N(X1)φ(X3).The SBD domain of HSPA8 interacts with RHIM-containing proteins,preventing proximate RHIM monomers from stacking into functional fibrils;furthermore,with the NBD domain supplying energy via ATP hydrolysis,HSPA8 breaks down pre-formed RHIM-amyloids into non-functional ***,HSPA8's amyloidase activity in disassembling functional RHIM-amyloids does not require its co-chaperone *** this amyloidase activity,HSPA8 reverses the initiator RHIM-amyloids(formed by RIP1,ZBP1,and TRIF)to prevent necroptosis initiation,and reverses RIP3-amyloid to prevent necroptosis execution,thus eliminating multi-level RHIM-amyloids to effectively prevent spontaneous necroptosis *** discovery that HSPA8 acts as an amyloidase dismantling functional amyloids provides a fundamental understanding of the reversibility nature of functional amyloids,a property distinguishing them from disease-related amyloids that are unbreakable in vivo.

关键词： Cell signalling Necroptosis

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Selenastrum densum ***.,a new member of the genus Selenastrum(Selenastraceae,Chlorophyceae,Chlorophyta)

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Journal of Oceanology and Limnology 2025年第3期43卷 967-983页

作者： Xudong LIU Na MA Jia FENG Junping LÜ Qi LIU Fangru NAN Yang LIU Liang PAN Shulian XIE School of Life Science Shanxi Key Laboratory for Research and Development of Regional PlantsShanxi UniversityTaiyuan 030006China Xinghuacun College of Shanxi University(Shanxi Institute of Brewing Technology and Industry) Taiyuan 030006China Taiyuan Botanical Garden Taiyuan 030006China

The genus Selenastrum comprises common coccoid green algae found in diverse habitats *** genus has a complex taxonomic history,but recent applications of molecular phylogenetic methods have removed some members with similar morphologies from Selenastrum and established new ***,due to the lack of available molecular sequences and isolates,the species diversity of the genus has not been fully *** conducted a detailed examination of the taxonomy of genus Selenastrum based on 11 new strains collected from *** multi-disciplinary study utilized morphology,ultrastructure,and phylogeny based on multiple molecular markers,and ITS-2 secondary *** the included strains of genus Selenastrum were clustered into two distinct *** members of one clade were similar morphologically to the type species Selenastrum bibraianum,whereas the strains of the other clade had distinctly different colony *** on the latter clade’s larger colony cell numbers and independent phylogenetic position,we proposed that it as a new species of the genus Selenastrum,namely Selenastrum densum *** taxa sampling and molecular data will help to discover additional new species and clarify the validity of morphological taxonomic characteristics within the genus Selenastrum.

关键词： colony structure molecular phylogeny Selenastraceae Selenastrum species diversity

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Low intensity near-infrared light promotes bone regeneration via circadian clock protein cryptochrome 1

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International Journal of Oral science 2022年第4期14卷 584-594页

作者： Jinfeng Peng Jiajia Zhao Qingming Tang Jinyu Wang Wencheng Song Xiaofeng Lu Xiaofei Huang Guangjin Chen Wenhao Zheng Luoying Zhang Yunyun Han Chunze Yan Qian Wan Lili Chen Department of Stomatology Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina School of Stomatology Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration WuhanChina Key Laboratory of Molecular Biophysics of Ministry of Education College of Life Science and TechnologyHuazhong University of Science and TechnologyWuhanChina Department of Neurobiology School of Basic Medicine and Tongji Medical CollegeHuazhong University of Science&TechnologyWuhanChina State key Laboratory of Materials Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhanChina Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation School of PharmacyHuazhong University of Science and TechnologyWuhanChina

Bone regeneration remains a great clinical challenge. Low intensity near-infrared(NIR) light showed strong potential to promote tissue regeneration, offering a promising strategy for bone defect regeneration. However, the effect and underlying mechanism of NIR on bone regeneration remain unclear. We demonstrated that bone regeneration in the rat skull defect model was significantly accelerated with low-intensity NIR stimulation. In vitro studies showed that NIR stimulation could promote the osteoblast differentiation in bone mesenchymal stem cells(BMSCs) and MC3T3-E1 cells, which was associated with increased ubiquitination of the core circadian clock protein Cryptochrome 1(CRY1) in the nucleus. We found that the reduction of CRY1 induced by NIR light activated the bone morphogenetic protein(BMP) signaling pathways, promoting SMAD1/5/9 phosphorylation and increasing the expression levels of Runx2 and Osterix. NIR light treatment may act through sodium voltage-gated channel Scn4a, which may be a potential responder of NIR light to accelerate bone regeneration. Together, these findings suggest that low-intensity NIR light may promote in situ bone regeneration in a CRY1-dependent manner, providing a novel, efficient and non-invasive strategy to promote bone regeneration for clinical bone defects.

关键词： stimulation intensity light

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