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Recent Progress in AIE-active Polymers

Chinese Journal of Polymer Science 2019年第4期37卷 289-301,I0004页

作者： yu bing hu Jacky W.Y.Lam Ben Zhong Tang HKUST-Shenzhen Research Institute Department of Chemistry The Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction and Institute for Advanced StudyThe Hong Kong University of Science and Technology Center for Aggregation-Induced Emission SCUT-HKUST Joint Research InstituteState Key Laboratory of Luminescent Materials and DevicesSouth China University of Technology

The demand for highly efficient solid-state luminophores is continuously growing due to their potential applications in optoelectrical devices, chemosensors, and biological applications. The discovery of luminogens with aggregation-induced emission(AIE)by Tang et al. in 2001 provides a good reponse to this demand. Among the exploited AIE luminogens, AIE-active polymers possess many advantages such as simple synthesis, convenient structrue modifications, and good processability, which offer an extensive platform for scientists and engineers. Herein, the design principles and latest synthetic advancement of AIE-active polymers are summarized, including click polymerization and multicomponent polymerization. Non-conjugated heteroatom-rich polymers were in situ generated and demonstated non-conventional clusteroluminoscence. Advanced applications including fluorescent sensors, stimuli-responsive materials,biological applications, circularly polarized luminescence, and electroluminescence are then introduced in detail. AIE-active polymers display the signal-amplification effect for sensitive and selective response to chemo/bioanalytes or stimuli and enhanced photosensitization effect for cancer theranostics. Retrospecting the expansion of this field can further strengthen our belief that AIE-active polymers are promising for conceptual innovation and technological breakthroughs in the near future.

关键词： Aggregation-induced emission Polymer synthesis High-tech application

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GO/HTPB composite liner for anti-migration of small molecules

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Defence Technology（防务技术） 2023年第4期22卷 156-165页

作者： Hao Li Jie Wei Ya-nan Zhang yu-bing hu Wei Jiang Teng-yue Zhang College of Materials Science and Engineering Nanjing Tech UniversityNanjing211816China National Special Superfine Powder Engineering Research Center of China Nanjing University of Science and TechnologyNanjing210014China Key Laboratory of Special Energy Materials Nanjing University of Science and TechnologyMinistry of EducationNanjing210094China China Research and Development Academy of Machinery Equipment Beijing100089China

Hydroxyl-terminated polybutadiene/toluene diisocyanate(HTPB/TDI)system is widely used in composite solid *** migrations of plasticizers and water molecules from solid propellants and surrounding environment to the inhibitor have always been the important *** study focuses on the preparation,characterization and anti-migration behavior of graphene oxide(GO)/HTPB nanocomposite *** GO/HTPB(GH)composite liners affect the migration of small molecules through a tighter cross-linked structure and weakening function of small molecule *** anti-migration performance of the liner at different temperatures was analyzed,and the influence of the added amount of GO on the anti-migration performance and adhesion performance was also systematically *** overall performance of the liner is optimized when the amount of GO filler is 0.3 wt%.After adding 0.3 wt%GO,the concentration of dioctyl sebacate(DOS)migrated into the liner is decreased by 23.28%,and the concentration of water molecules is decreased by 51.89%,indicating that the introduction of GO can significantly improve the anti-migration performance of the *** addition,the bond strength is greatly increased from 0.25 MPa to 0.95 MPa,which meets the application requirements of the current propellant *** research provides an important way for the preparation of structure-function synergistic anti-migration composite liners.

关键词： Graphene oxide Liner Structure-function Anti-migration Bonding

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Extraction of gravel characteristics and spatial inversion for ecological restoration monitoring in the Northern Tibetan Plateau

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Journal of Mountain Science 2025年第2期22卷 556-574页

作者： KONG Bo yu huan QIU Xia hu Wenkai HE bing GUAN Xudong Institute of Mountain Hazards and Environment Chinese Academy of SciencesChengdu 610041China College of Geography and Planning Chengdu University of TechnologyChengdu 610059China Tibet Geological Environment Monitoring Center Lhasa 850000China School of Computer Science Chengdu University of Information TechnologyChengdu 610225China Sichuan Real Estate Registration Center(Sichuan Provincial Land and Cadastral Affairs Center) Chengdu 610072China

Previous studies have often focused on monitoring grassland growth as the primary target of remote sensing investigations on grassland ecological restoration in the northern Tibetan Plateau,overlooking the crucial role played by gravel in the ecological restoration of these *** study utilizes supervised classification and segmentation techniques based on machine learning to extract gravel morphology profiles from field-sampled plot images and calculate their characteristic *** a multivariate linear approach combined with Principal Component Analysis(PCA),a model for inferring gravel characteristic parameters is *** features,particle size characteristics,and spatial distribution patterns of gravel are *** reveal that gravel predominantly exhibit sub-rounded shapes,with 80%classified as fine *** coefficients of determination(R2)between gravel particle size and coverage,perimeter,and area are 0.444,0.724,and 0.557,respectively,indicating linear *** cumulative contribution rate of the top five remote sensing factors is 95.44%,with the first geological factor contributing 77.64%,collectively reflecting the primary information of the 20 factors *** shows that areas with larger gravel particle sizes correspond to increased perimeter and *** in the Nagqu Prefecture of northern Tibet have a particle size range of 4-8 mm,primarily comprising fine gravel which accounts for 94.61%.These findings provide a scientific basis for extracting gravel characteristic parameters and understanding their spatial distribution variations in the northern Tibetan Plateau.

关键词： Gravel characteristics parameters Northern Tibetan Plateau Gravel outline extraction Remote sensing inversion Grassland degradation

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Simulation of the plasticizing behavior of composite modified doublebase(CMDB)propellant in grooved calendar based on adaptive grid technology

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Defence Technology（防务技术） 2021年第6期17卷 1954-1966页

作者： Su-wei Wang Xiu-duo Song Zong-kai Wu Lei Xiao Guang-pu Zhang yu-bing hu Ga-zi Hao Wei Jiang Feng-qi Zhao National Special Superfine Powder Engineering Research Center of China School of Chemistry and Chemical EngineeringNanjing University of Science and TechnologyNanjing210094China Xi'an Modern Chemistry Research Institute Xi'an710065China

The frequent occurrence of safety accidents during the calendering process is caused by the flammable and explosive properties of composite modified double-base(CMDB)*** of process parameters with the aid of fluid simulation technology could effectively ensure the safety of the calendering *** improve the accuracy of the simulation results,material parameters and model structure were corrected based on actual conditions,and adaptive grid technology was applied in the local mesh *** addition,the rheological behavior,motion trajectories and heat transfer mechanisms of CMDB propellant slurry were studied with different gaps,rotational rates and temperatures of two *** results indicated that the refined mesh could significantly improve the contour clarity of boundaries and simulate the characteristics of CMDB propellant slurry reflux movement caused by the convergent flow near the *** with the gap,the increased rotational rate of roller could promote the reflux movement and intensify the shear flow of slurry inside the flow region by viscous shear ***,under the synergistic effect of contact heat transfer as well as convective heat exchange,heat accumulated near the outlet and diffused along the reflux movement,which led to the countercurrent heat dissipation behavior of CMDB propellant *** plasticizing mechanism of slurry and the safety of calendering under different conditions were explored,which provided theoretical guidance and reference data for the optimization of calendering process *** on the simulation results,the safety of the CMDB propellant calendering process could be significantly improved with a few tests conducted during a short research and development cycle.

关键词： Composite modified double base propellant Calendering process Fluid simulation Vortex flow0

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A review on the high energy oxidizer ammonium dinitramide:Its synthesis,thermal decomposition,hygroscopicity,and application in energetic materials

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Defence Technology（防务技术） 2023年第1期19卷 163-195页

作者： Fu-yao Chen Chun-lei Xuan Qiang-qiang Lu Lei Xiao Jun-qing Yang yu-bing hu Guang-Pu Zhang Ying-lei Wang Feng-qi Zhao Ga-zi Hao Wei Jiang National Special Superfine Powder Engineering Technology Research Center Nanjing University of Science and TechnologyNanjingChina Xi'an Modern Chemistry Research Institute Xi'anChina

Ammonium dinitramide(ADN)is considered as a potential substitute for ammonium perchlorate in energetic materials due to its high density,positive oxygen balance,and halogen-free ***,its application has been severely limited because of its strong hygroscopicity,difficult storage,and incompatibility with isocyanate curing *** order to better bloom the advantages of the highly energetic and environment-friendly ADN in the fields of energetic materials,an in-depth analysis of the current situation and discussion of key research points are particularly *** this paper,a detailed overview on the synthesis,thermal decomposition,hygroscopic mechanism,and antihygroscopicity of ADN has been discussed,its application in powdes and explosives are also presented,and its future research directions are proposed.

关键词： Ammonium dinitramide High energy oxidizer Synthesis Properties Applications

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Mitochondrial dysfunction in the pathogenesis of acute pancreatitis

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Hepatobiliary & Pancreatic Diseases International 2025年第1期24卷 76-83页

作者： Xia Chen Rui Zhong bing hu Department of Gastroenterology and Hepatology West China Hospital Sichuan University Department of Gastroenterology Clinical Medical College and The First Affiliated Hospital of Chengdu Medical College

The mechanism of cell damage during acute pancreatitis (AP) has not been fully elucidated, and there is still a lack of specific or effective treatments. Increasing evidence has implicated mitochondrial dysfunction as a key event in the pathophysiology of AP. Mitochondrial dysfunction is closely related to calcium (Ca2+) overload, intracellular adenosine triphosphate depletion, mitochondrial permeability transition pore openings, loss of mitochondrial membrane potential, mitophagy damage and inflammatory responses. Mitochondrial dysfunction is an early triggering event in the initiation and development of AP,and this organelle damage may precede the release of inflammatory cytokines, intracellular trypsin activation and vacuole formation of pancreatic acinar cells. This review provides further insight into the role of mitochondria in both physiological and pathophysiological aspects of AP, aiming to improve our understanding of the underlying mechanism which may lead to the development of therapeutic and preventive strategies for AP.

关键词： Acute pancreatitis Autophagy Calcium Cell death Inflammation Mitochondria Mitophagy

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Nitrogen-cycling processes under long-term compound heavy metal(loids)pressure around a gold mine:Stimulation of nitrite reduction

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Journal of Environmental Sciences 2025年第1期147卷 571-581页

作者： Xuesong hu Xiaoxia Liu Shuo Zhang Caihong yu School of Chemical&Environmental Engineering China University of Mining and Technology(Beijing)Beijing 100083China Beijing Cultivated Land Construction and Protection Center Beijing 100020China

Mining and tailings deposition can cause serious heavy metal(loids)pollution to the surrounding soil *** microorganisms adapt their metabolism to such conditions,driving alterations in soil *** study aims to elucidate the response patterns of nitrogen-cycling microorganisms under long-term heavy metal(loids)*** results showed that the diversity and abundance of nitrogen-cyclingmicroorganisms showed negative feedback to heavy metal(loids)*** microorganisms were shown to be the dominant microorganisms with over 60%of relative abundance and a complex community structure including 27 ***,the key bacterial species in the denitrification process were calculated using a random forest model,where the top three key species(Pseudomonas stutzei,Sphingobium japonicum and Leifsonia rubra)were found to play a prominent role in nitrite *** gene analysis and qPCR revealed that nirK,which is involved in nitrite reduction,significantly accumulated in the most metal-rich soil with the increase of absolute abundance of 63.86%.The experimental results confirmed that the activity of nitrite reductase(Nir)encoded by nirK in the soil was increased at high concentrations of heavy metal(loids).Partial least squares-path model identified three potential modes of nitrite reduction processes being stimulated by heavy metal(loids),the most prominent of which contributed to enhanced nirK abundance and soil Nir activity through positive stimulation of key *** results provide new insights and preliminary evidence on the stimulation of nitrite reduction processes by heavy metal(loids).

关键词： N cycle Nitrite reduction Nitrite reductase Metagenome Key species

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Mechanism by which Rab5 promotes regeneration and functional recovery of zebrafish Mauthner axons

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Neural Regeneration Research 2025年第6期20卷 1816-1824页

作者： Jiantao Cui yueru Shen Zheng Song Dinggang Fan bing hu Center for Advanced Interdisciplinary Science and Biomedicine of IHM Division of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui ProvinceChina

Rab5 is a GTPase protein that is involved in intracellular membrane trafficking. It functions by binding to various effector proteins and regulating cellular responses, including the formation of transport vesicles and their fusion with the cellular membrane. Rab5 has been reported to play an important role in the development of the zebrafish embryo;however, its role in axonal regeneration in the central nervous system remains unclear. In this study, we established a zebrafish Mauthner cell model of axonal injury using single-cell electroporation and two-photon axotomy techniques. We found that overexpression of Rab5 in single Mauthner cells promoted marked axonal regeneration and increased the number of intra-axonal transport vesicles. In contrast, treatment of zebrafish larvae with the Rab kinase inhibitor CID-1067700markedly inhibited axonal regeneration in Mauthner cells. We also found that Rab5 activated phosphatidylinositol 3-kinase(PI3K) during axonal repair of Mauthner cells and promoted the recovery of zebrafish locomotor function. Additionally, rapamycin, an inhibitor of the mechanistic target of rapamycin downstream of PI3K, markedly hindered axonal regeneration. These findings suggest that Rab5 promotes the axonal regeneration of injured zebrafish Mauthner cells by activating the PI3K signaling pathway.

关键词： axonal regeneration Mauthner cell nerve regeneration Rab5 zebrafish

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Dietary ferulic acid supplementation enhances antioxidant capacity and alleviates hepatocyte pyroptosis in diquat challenged piglets

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Journal of Animal Science and Biotechnology 2025年第1期16卷 377-387页

作者： Junqiu Luo Xiu Wu Daiwen Chen bing yu Jun He Institute of Animal Nutrition Key Laboratory for Animal Disease‑Resistance Nutrition of China Ministry of EducationSichuan Agricultural UniversityChengduSichuan 611130People’s Republic of China

Background Oxidative stress significantly impacts growth performance and liver function in *** acid(FA)works as an antioxidant,however,the role and mechanism of FA in the regulation of diquat-induced oxidative stress in piglets are less *** study was designed to investigate the effects of FA on growth performance and antioxi-dant capacity in piglets with diquat *** Thirty-two healthy DLY(Duroc×Landrace×Yorkshire)piglets(13.24±0.19 kg)were randomly divided into one of two diets including 0 or 4 g/kg FA for 14 *** d 15,all pigs were intraperitoneally injected diquat or sterile *** Dietary supplementation with ferulic acid(FA)significantly improved the average daily gain(ADG)and decreased feed-gain ratio(F/G)of ***,dietary FA supplementation reduced serum aspartate aminotrans-ferase(AST),alanine aminotransferase(ALT)activities in diquat challenged ***,diquat infusion increased reactive oxygen radicals(ROS)level in liver,decreased the activities of total superoxide dismutase(T-SOD)and glutathione peroxidase(GSH-Px),total antioxidant capacity(T-AOC)and increased malondialdehyde(MDA)con-tent in the liver and *** with FA significantly increased T-AOC and T-SOD activities and decreased MDA and ROS *** down-regulated gene and protein expression of Keap1,and up-regulated protein expression of Nrf2 and HO-1 in the liver of piglets with diquat ***,diquat challenge increased the ratio of late apoptosis,increased serum levels of IL-1β,IL-18 and lactate dehydrogenase(LDH),and up-regulated pyroptosis-related genes in the *** supplementation reduced the ratio of late apoptosis and down-regulated mRNA expression of ***,FA addition reduced concentration of IL-1β,IL-18,and LDH under diquat *** Diquat-induced oxidative stress reduced growth performance and impaired liver function in *** FA supplementation enhanced the antiox

关键词： Antioxidant capacity Ferulic acid Hepatic pyroptosis Piglets

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Reveal short range interactions between u/d quarks in the NN, D03, and D30 systems

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Science China(Physics,Mechanics & Astronomy) 2025年第3期Mechanics & Astronomy) .卷 106-115页

作者： Qi-Fang Lü yu-bing Dong Peng-Nian Shen Zong-Ye Zhang Department of Physics Hunan Normal University Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education Key Laboratory for Matter Microstructure and Function of hunan Province Hunan Normal University Institute of High Energy Physics Chinese Academy of Sciences School of Physical Sciences University of Chinese Academy of Sciences

The dynamic mechanism of short range interactions between u/d quarks remains an open and challenging problem. In order to reveal this quark dynamics, we perform a systematic analysis of N N, D03, and D30systems in the（extended） chiral SU（3） constituent quark models. By comparing results calculated with different models and different parameter sets, the effects of one gluon exchange and vector meson exchange terms are carefully examined. The results indicate that the vector meson exchange interactions dominate the short range interactions between u/d quarks, whereas the small residual one gluon exchange coupling strength is also allowed.

关键词： short range interactions dibaryons constituent quark models

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