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Science China Chemistry 2024年

作者： Yutao Zhang juan Li Weihong zhu Zhiqian Guo Shanghai Key Laboratory of Functional Materials Chemistry Joint International Research Laboratory of Precision Chemistry and Molecular Engineering Institute of Fine Chemicals School of Chemistry and Molecular Engineering East China University of Science and Technology State Key Laboratory of Bioreactor Engineering Shanghai Frontier Science Research Base of Optogenetic Techniques for Cell MetabolismEast China University of Science & Technology

Sequence-activated chemiluminescence(CL) technique offers a unique approach to detecting specific biomolecules or cellular events with high sensitivity and spatial resolution. The fundamental principle behind sequence-activated CL probes involves tailoring highly-controllable CL signals in response to specific sequences or events of interest, thus enabling high-contrast signals under complex physiological conditions. This sequential activation could be triggered by enzymes, reactive oxygen species(ROS), biothiols or changes in the microenvironment. These unique sequence-activated CL probes bestow several advantages, including minimal background, deep-tissue penetration, and the ability of non-invasive or minimally invasive detection. The sequence-activated CL techniques represent a significant advancement in molecular imaging and diagnostics. In this mini-review, we focus on the latest developments in sequential CL probes, addressing the technical challenges and discussing the future trajectory by harnessing CL signaling and molecular recognition.

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Highly efficient ternary organic solar cells with excellent open-circuit voltage and fill factor via precisely tuning molecular stacking and morphology

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Science China Chemistry 2024年第3期67卷 963-972页

作者： Dinghong Sun Zhenyu Chen jianfeng Zhang Wei Song jingyu Shi jintao zhu Yuanyuan Meng Fei jin Shuncheng Yang Ziyi Ge Faculty of Electrical Engineering and Computer Science Ningbo UniversityNingbo 315211China Faculty of Material Science and Chemical Engineering Ningbo UniversityNingbo 315211China Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices Ningbo Institute of Materials Technology&EngineeringChinese Academy of SciencesNingbo 315201China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing 100049China Department of Chemical and Environmental Engineering University of Nottingham NingboNingbo 315100China

The micro-morphology and molecular stacking play a key role in determining the charge transport process and nonradiative energy loss, thus impacting the performances of organic solar cells(OSCs). To address this issue, a non-fullerene acceptor PhC6-IC-F with alkylbenzene side-chain, possessing optimized molecular stacking, complementary absorption spectra and forming a cascade energy level alignment in the PM6:BTP-eC9 blend, is introduced as guest acceptor to improve efficiency of ternary OSCs. The bulky phenyl in the side-chain can regulate crystallinity and optimizing phase separation between receptors in ternary blend films, resulting in the optimal phase separations in the ternary films. As a result, high efficiencies of 18.33% as photovoltaic layer are obtained for PhC6-IC-F-based ternary devices with excellent fill factor(FF) of 78.92%. Impressively, the ternary system produces a significantly improved open circuit voltage(V_(oc)) of 0.857 V compared with the binary device,contributing to the reduced density of trap states and suppressed non-radiative recombination result in lower energy loss. This work demonstrates an effective approach for adjusting the aggregation, molecular packing and fine phase separation morphology to increase V_(oc) and FF, paving the way toward high-efficiency OSCs.

关键词： alkylbenzene side-chain morphology regulation ternary blends organic solar cells

Effects of water deficit and high N fertilization on wheat storage protein synthesis,gluten secondary structure,and breadmaking quality

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The Crop journal 2022年第1期10卷 216-223页

作者： junxian Liu junwei Zhang Gengrui zhu Dong zhu Yueming Yan Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement College of Life ScienceCapital Normal UniversityBeijing 100048China

The content and composition of wheat storage proteins are the major determinants of dough rheological properties and breadmaking quality and are influenced by cultivation *** study aimed to investigate the effects of water deficit and high N-fertilizer application on wheat storage protein synthesis,gluten secondary structure,and breadmaking ***-phase ultrahigh-performance liquid chromatography analysis showed that storage protein and gluten macropolymer accumulation was promoted under both independent applications and a combination of water-deficit and high N-fertilizer ***-transform infrared spectroscopy showed that water deficit and high N-fertilizer treatments generally improved protein secondary structure formation and lipid accumulation,and reduced flour *** particular,high N-fertilizer application increasedβ-sheet content by 10.4%and the combination of water-deficit and high N-fertilizer treatments increased random coil content by 7.6%.These changes in gluten content and secondary structure led to improved dough rheological properties and breadmaking quality,including superior loaf internal structure,volume,and *** results demonstrate that moderately high N-fertilizer application under drought conditions can improve gluten accumulation,gluten secondary structure formation,and baking quality.

关键词： Water deficit High N-fertilizer Storage proteins Gluten structure Breadmaking quality

Gut microbiota modulating intestinal stem cell differentiation

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World journal of Stem Cells 2024年第6期16卷 619-622页

作者： Lin He Chen zhu Xiang-Feng Zhou Shu-E Zeng Le Zhang Kuan Li Department of Alcohol and Drug Dependence Treatment The Mental Hospital of Yunnan ProvinceKunming 650224Yunnan ProvinceChina Department of Physical Education Kunming Medical UniversityKunming 650500Yunnan ProvinceChina Department of Geriatric Psychiatry The Mental Hospital of Yunnan ProvinceKunming 650224Yunnan ProvinceChina Sleep Medicine Center The Mental Hospital of Yunnan ProvinceKunming 650224Yunnan ProvinceChina

Proliferation and differentiation of intestinal stem cell(ISC)to replace damaged gut mucosal epithelial cells in inflammatory states is a critical step in ameliorating gut ***,when this disordered proliferation continues,it induces the ISC to enter a cancerous *** gut microbiota on the free surface of the gut mucosal barrier is able to interact with ISC on a sustained ***-biota metabolites are able to regulate the proliferation of gut stem and progenitor cells through transcription factors,while in steady state,differentiated colono-cytes are able to break down such metabolites,thereby protecting stem cells at the gut *** the future,the gut flora and its metabolites mediating the regulation of ISC differentiation will be a potential treatment for enteropathies.

关键词： Intestinal stem cells Gut microbiota Gut stem niche Microenvironment Probiotics

具有优异储能性能与充放电特性的类线性NaNbO_(3)基无铅弛豫反铁电陶瓷

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无机材料学报 2024年第4期39卷 423-431页

作者：石睿健雷俊伟张祎谢爱文左如忠安徽工程大学材料科学与工程学院先进陶瓷研究中心芜湖241000

反铁电材料由于电场诱导的反铁电-铁电相变而在高性能介质储能电容器应用中显示出极大的潜力。然而,场致相变带来大的极化滞后使得反铁电材料难以同时获得高储能密度(Wrec)和高储能效率(η)。本工作通过在0.76NaNbO_(3)-0.24(Bi_(0.5)Na... 详细信息

反铁电材料由于电场诱导的反铁电-铁电相变而在高性能介质储能电容器应用中显示出极大的潜力。然而,场致相变带来大的极化滞后使得反铁电材料难以同时获得高储能密度(Wrec)和高储能效率(η)。本工作通过在0.76NaNbO_(3)-0.24(Bi_(0.5)Na_(0.5))TiO_(3)中引入第三组元Bi(Mg_(0.5)Ti_(0.5))O_(3)调控其弛豫特性,改善了NaNbO_(3)基无铅反铁电陶瓷的储能性能。采用传统固相合成法制备了(0.76–x)NaNbO_(3)-0.24(Bi_(0.5)Na_(0.5))TiO_(3)-xBi(Mg_(0.5)Ti_(0.5))O_(3)无铅弛豫反铁电陶瓷材料,并研究了该材料的相结构、微观形貌以及介电、储能和充放电特性。结果表明,引入Bi(Mg_(0.5)Ti_(0.5))O_(3)在不改变基体反铁电正交R相结构的基础上明显增强了陶瓷的介电弛豫特性,显著减小了陶瓷的极化滞后性。特别是在x=0.050组成中实现了具有极低滞后的类线性电滞回线。同时,陶瓷的显微形貌还得到明显改善,介电常数降低,击穿场强显著提高。因此,x=0.050的组成在30 kV/mm的中等电场下同时获得了高的储能密度Wrec=3.5 j/cm^(3)与储能效率η=93%。此外,x=0.050组成还显示出优异的充放电特性,在20 kV/mm下具有高功率密度PD=131(1±1%)MW/cm^(3)、高放电能量密度WD=1.66(1±6%)j/cm^(3)以及快的放电速率t0.9<290 ns。该充放电特性在25~125℃的宽温区内保持良好的稳定性。这些研究结果表明,0.71NaNbO_(3)-0.24(Bi_(0.5)Na_(0.5))TiO_(3)-0.050Bi(Mg_(0.5)Ti_(0.5))O_(3)陶瓷是一种非常有应用潜力的高功率储能电容器介质材料。

关键词：无铅陶瓷反铁电介电弛豫储能性能充放电特性

Significant effect of ordered micro-domain on cell boundary phase distribution and demagnetization curve squareness of Sm_(2)Co_(17)-type magnet

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Rare Metals 2024年第4期43卷 1724-1735页

作者： zhuang Liu Hai-Chen Wu Chao-Yue Zhang Chao-Qun zhu Guo-Xin Chen Huan-Ming Lu Ren-jie Chen Aru Yan CISRI&NIMTE joint Innovation Center for Rare Earth Permanent Magnets Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo315201China University of Chinese Academy of Sciences Beijing100049China Analytical Center Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo315201China

Cu-rich cell boundary phase is difficult to precipitate evenly,resulting in a generally poor demagnetization curve squareness for Fe-rich Sm_(2)Co_(17)-type magnet,which is a key factor limiting the further improvement of magnetic energy *** this study,we report that nanoscale strip-like ordered micro-domains distributed in1:7H disordered matrix phase of the solid solution precursor is a new factor significantly affecting the precipitation and distribution of the cell boundary *** strip-like and continuous micro-twin structure with twin boundaries neatly perpendicular to the C-axis is observed after sintering *** solution treatment,sequential and long strip-like micro-twins gradually transform into disordered state along the basal plane,forming narrow disordered 1:7H(TbCu_(7)-type structure)phase between the separated strip-like ordered *** disordering transformation takes place via broken down of the long strip-like ordered micro-domains,which is accomplished by narrowing along the width direction followed by reduction of the ***,a new model revealing the effect of the ordered micro-domains on the formation of the cell boundary phase is *** boundaries enriched in Cu have already existed in the precursor with long strip-like ordered ***,the Cu-rich cell boundary phase acting as strong pinning centers cannot be precipitated homogeneously and distributed continuously after aging,resulting in a poor demagnetization curve squareness of Sm_(2)Co_(17)-type *** results indicate that significant broken down of the nanoscale ordered micro-domains in solution precursor is the key factor improving the distribution of cell boundary phase in Sm_(2)Co_(17)-type magnets.

关键词： Sm_(2)Co_(17) magnets Solution precursor Ordered micro-domains Disordering transformation Cellular structure

RACK1A promotes hypocotyl elongation by scaffolding light signaling components in Arabidopsis

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journal of Integrative Plant Biology 2024年第5期66卷 956-972页

作者： Yajuan Fu Wei zhu Yeling Zhou Yujing Su Zhiyong Li Dayan Zhang Dong Zhang jinyu Shen jiansheng Liang Key Laboratory of Molecular Design for Plant Cell Factory of Guangdong Higher Education Institutes Department of BiologySchool of Life SciencesInstitute of Plant and Food SciencesSouthern University of Science and TechnologyShenzhen 518055China

Plants deploy versatile scaffold proteins to intricately modulate complex cell *** these,RACK1A(Receptors for Activated C Kinase 1A)stands out as a multifaceted scaffold protein functioning as a central integrative hub for diverse signaling ***,the precise mechanisms by which RACK1A orchestrates signal transduction to optimize seedling development remain largely ***,we demonstrate that RACK1A facilitates hypocotyl elongation by functioning as a flexible platform that connects multiple key components of light signaling ***1A interacts with PHYTOCHROME INTERACTING FACTOR(PIF)3,enhances PIF3 binding to the promoter of BBX11 and down-regulates its ***,RACK1A associates with ELONGATED HYPOCOTYL 5(HY5)to repress HY5 biochemical activity toward target genes,ultimately contributing to hypocotyl *** darkness,RACK1A is targeted by CONSTITUTIVELY PHOTOMORPHOGENIC(COP)1 upon phosphorylation and subjected to COP1-mediated degradation via the 26 S proteasome *** findings provide new insights into how plants utilize scaffold proteins to regulate hypocotyl elongation,ensuring proper skoto-and photo-morphogenic development.

关键词： Arabidopsis hypocotyl development light signaling components RACK1 scaffoldprotein

Ability to detect and locate gross errors on DEM matching algorithm

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International journal of Digital Earth 2010年第1期3卷 72-82页

作者： T.Zhang M.Cen Z.Ren R.Yang Y.Feng j.zhu Department of Surveying Engineering School of Civil EngineeringSouthwest Jiaotong UniversityChengdu 610031China College of Earth Sciences Chengdu University of TechnologyChengdu 610051China

Digital elevation model(DEM)matching techniques have been extended to DEM deformation detection by substituting a robust estimator for the least squares estimator,in which terrain changes are treated as gross ***,all existing methods only emphasise their deformation detecting ability,and neglect another important aspect:only when the gross error can be detected and located,can this system be *** paper employs the gross error judgement matrix as a tool to make an in-depth analysis of this *** theoretical analyses and experimental results show that observations in the DEM matching algorithm in real applications have the ability to detect and locate gross ***,treating the terrain changes as gross errors is theoretically feasible,allowing real DEM deformations to be detected by employing a surface matching technique.

关键词： DEM matching gross error detection gross error location gross error judgement matrix least z-different algorithm deformation detection robust estimator

The actin motor protein OsMYA1 associates with OsExo70H1 and contributes to rice secretory defense by modulating OsSyp121 distribution

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journal of Integrative Plant Biology 2024年第9期66卷 2058-2075页

作者： Yuan‐Bao Li Chengyu Liu Ningning Shen Shuai zhu Xianya Deng Zixuan Liu Li‐Bo Han Dingzhong Tang State Key Laboratory of Ecological Control of Fujian‐Taiwan Crop Pests Key Laboratory of Ministry of Education for GeneticsBreeding and Multiple Utilization of CropsPlant Immunity CenterFujian Agriculture and Forestry UniversityFuzhou 350002China College of Agriculture Fujian Agriculture and Forestry UniversityFuzhou 350002China College of Life Sciences Fujian Agriculture and Forestry UniversityFuzhou 350002China School of Future Technology Fujian Agriculture and Forestry UniversityFuzhou 350002China

Magnaporthe oryzae(***)is a devastating hemibiotrophic *** biotrophic invasive hyphae(IH)are enclosed in the extrainvasive hyphal membrane produced by plant cells,thus generating a front line of the battlefield between the pathogen and the host *** plants,defense-related complexes such as proteins,callose-rich materials and vesicles,are directionally secreted to this interface to confer defense responses,but the underlying molecular mechanism is poorly *** this study,we found that a Myosin gene,Myosin A1(OsMYA1),contributed to rice *** OsMYA1 knockout mutant exhibited decreased resistance to *** ***1 localizes to the actin cytoskeleton and surrounds the IH of ***1 interacts with an exocyst subunit,OsExo70H1,and regulates its accumulation at the plasma membrane(PM)and pathogen–plant ***,OsExo70H1 interacted with the rice syntaxin of the plants121 protein(OsSyp121),and the distribution of OsSyp121 to the PM or the pathogen–plant interface was disrupted in both the OsMYA1 and OsExo70H1 ***,these results not only reveal a new function of OsMYA1 in rice blast resistance,but also uncover a molecular mechanism by which plants regulate defense against *** by OsMYA1-initiated vesicle secretory pathway,which originates from the actin cytoskeleton to the PM.

关键词： cytoskeleton plant defense mechanism rice blast vesicle delivery

Higgs boson decays h→MZ in the TNMSSM

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Chinese Physics C 2024年第9期48卷 21-35页

作者： Huai-Cong Hu Zhao-Yang Zhang Ning-Yu zhu Hai-Xiang Chen School of Physical Science and Technology Guangxi UniversityNanning 530004China

We study the SM-like Higgs boson decays h→MZ in the triplet extended NMSSM(TNMSSM),where M is a vector meson(ρ,ω,φ,j/ψ,Υ).Compared to the minimal supersymmetric standard model(MSSM),the TNMSSM includes two new SU(2) triplets with hypercharge ±1 and an SM gauge singlet,which are coupled to each *** indirect contributions to the h→MZ decays are produced from the effective hyZ vertex,and they are more important than the direct *** results of this work could encourage a detection on h→Zγ at the future high energy colliders for exploring new physics beyond the SM.

关键词： supersymmetry Higgs boson decay