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Acta Metallurgica Sinica(English Letters) 2022年第5期35卷 812-824页

作者： Sijie Qin Xiongcheng Xu Yanjin Lu Liu Li Tingting Huang jinxin lin Key Laboratory of Optoelectronic Materials Chemistry and Physics Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou350002China University of the Chinese Academy of Sciences Beijing100049China College of Chemistry Fuzhou UniversityFuzhou350108China Research Center of Oral Tissue Engineering School and Hospital of StomatologyFujian Medical UniversityFuzhou350001China

In this study,we fabricated poly(3-hydroxybutyrate-3-hydroxyvalerate)(PHBV)coatings doped with Gd^(3+)(1,5,and 10×10^(−4) mol/L)on Ti6Al4V alloy for the first time to promote soft tissue sealing around dental *** corrosion resistance of Gd^(3+)-modified PHBV-coated Ti6Al4V was studied by electrochemical and immersion tests,respectively,whereas CCK-8 and RT-PCR evaluated the biocompatibility to human gingival fibroblasts(HGFs)and human umbilical vein endothelial cells(HUVECs).It was found that the Gd^(3+)-modified PHBV coating could enhance the corrosion resistance of *** vitro cell tests showed that PHBV coatings with and without Gd^(3+) addition could promote adhesion and proliferation of HGFs and HUVECs,showing a Gd^(3+) content-dependent ***,it was found that the PDA-PHBV@1Gd showed the best proliferation to HGFs by up-regulating gene expressions of VINCUlin,ITGB1,and ITGA3,whereas the best response to HUVECs with the highest gene expression of eNOS and HIF-1αgenes was found in the PDA-PHBV@5Gd-coated group.

关键词： Soft tissue sealing Poly(3-hydroxybutyrate-3-hydroxyvalerate)(PHBV) Gd^(3+) Corrosion resistance Human gingival fibroblasts

Decomposing and mapping different scales of land subsidence over Shanghai with X-and C-Band SAR data stacks

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International Journal of Digital Earth 2022年第1期15卷 478-502页

作者： Ru Wang Mengshi Yang Tianliang Yang jinxin lin Mingsheng Liao State Key Laboratory of Information Engineering in Surveying Mapping and Remote SensingWuhan UniversityWuhanPeople’s Republic of China School of Earth Sciences Yunnan UniversityKunmingPeople’s Republic of China Key Laboratory of Land Subsidence Monitoring and Prevention Ministry of Land and ResourcesShanghaiPeople’s Republic of China Shanghai Institute of Geological Survey ShanghaiPeople’s Republic of China

Land subsidence can be observed with time-series of Interferometric Synthetic Aperture Radar(InSAR)***,existing approaches only reveal subsidence signals that are multi-scale mixed,which is not conducive to the systematic analysis of subsidence of different mechanisms.A deformation signal decomposition(DSD)method based on spectral analysis is used to decompose the deformation extracted by time-series InSAR into three classes of deformation *** refer to large-scale deformation related to geological settings,medium-scale deformation caused more by group excavation,and small-scale deformation along linear ***-X datasets for Shanghai spanning April 2013 to September 2020,and Sentinel-1A datasets spanning January 2016 to September 2020 are used in this *** results were cross-verified between the TerraSAR-X and Sentinel-1A datasets,and validated against levelling *** signals caused by different mechanisms were automatically decomposed,which facilitates a systematic analysis for targeted diagnosis of land subsidence signals.A detailed analysis was conducted jointly at three scales of surface displacement,geological conditions,major construction activities,and subsidence *** indicated that construction activities were the leading cause of land subsidence,and suggests that local authorities that wish to mitigate surface subsidence may benefit from primarily considering this process.

关键词： Deformation decomposition land subsidence time-series InSAR Shanghai

In vitro insights into the role of copper ions released from selective laser melted CoCrW-xCu alloys in the potential attenuation of inflammation and osteoclastogenesis

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Journal of Materials Science & Technology 2020年第6期41卷 56-67页

作者： Yanjin Lu Xiongcheng Xu Chunguang Yang ling Ren Kai Luo Ke Yang jinxin lin Key Laboratory of Optoelectronic Materials Chemistry and Physics Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350001China University of Chinese Academy of Sciences Beijing 100049China Key Laboratory of Stomatology Fujian Medical UniversityFuzhou 350001China Institute of Metal Research Chinese Academy of SciencesShenyang 110016China

In this study,the CoCrW-x Cu alloys(x=2,3 and 4 wt%)were fabricated using selective laser melting(abbreviated as Co-2 Cu,Co-3 Cu and Co-4Cu)with the purpose of reducing the inflammation responses and the activity of *** metal ions releasing test showed that when the Cu content was less than 4 wt%,the releasing amount of Co and Cr ions was very small;however,when 4 wt%Cu was added in the CoCrW based alloy,the quantity of Co ions was significantly elevated with respect to the other groups due to the segregation of precipitates in the matrix;the Cu2+ion quantity of the Co-2Cu,Co-3Cu and Co-4Cu alloys were 0.05,0.09 and 0.27 g/(L cm2)after 7 d immersion,respectively;the RT-q PCR and ELISA data indicated that the expression levels of the pro-inflammatory cytokines(TNF-αand IL-6)were down-regulated in the Co-3Cu and Co-4Cu groups,whereas the expression level of the anti-inflammatory cytokine(IL-10)was up-regulated in all CoCrW-x Cu alloys;meanwhile,the Cu-containing CoCrW alloys significantly down-regulated the expression of the NF-B signal pathway in a Cu content-dependent manner,and the downstream transcription factors of NF-B signal pathway including NFATc1,TRAP and Cath-K were also down-regulated via potentially manipulating the NF-B signal *** comprehensive consideration,it is considered that the Co-3Cu alloy is a potential material for self-alleviating inflammatory responses.

关键词： Osteoclast Selective laser melting Macrophage Cu-bearing biomedical alloy Biocompatibility

Tuning the Corrosion Resistance,Antibacterial Activity,and Cytocompatibility by Constructing Grooves on the Surface of Ti6Al4V3Cu Alloy

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Acta Metallurgica Sinica(English Letters) 2023年第12期36卷 1979-1998页

作者： Minghui Zhou Hui Sun Yanming Gan Cheng Ji Yan Chen Yanjin Lu jinxin lin Qiang Wang Key Laboratory of Optoelectronic Materials Chemistry and Physics Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China College of Chemistry Fuzhou UniversityFuzhou 350108China Liaoning Provincial Key Laboratory of Oral Diseases School and Hospital of StomatologyChina Medical UniversityShenyang 110002China Fujian College University of Chinese Academy of SciencesFuzhou350002China Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou 350108China College of Chemistry and Materials Science Fujian Normal UniversityFuzhou 350007China

Ti6Al4V3Cu alloy is a promising biomaterial for combating implant-related ***,the antibacterial property of Ti6Al4V3Cu is expected to be enhanced due to the low content of Cu element in *** address this issue,the antibacterial property of Ti6Al4V3Cu was tailored by the grooves with different groove widths(30μm,60μm,and 90μm)that were constructed on the surface of the Ti6Al4V3Cu by selective laser *** effect of grooves on corrosion resistance,antibacterial property,and cytocompatibility was *** electrochemical tests showed that the corrosion resistance decreased with increasing groove *** antibacterial tests indicated that the groove with a width of 30μm and 90μm groups showed better antibacterial activity against ***(>90%)compared with the groove with a width of 60μ*** in vitro study suggested that all samples with different grooves were found to exhibit good cytocompatibility with osteoblast *** is considered that creating grooves on Ti6Al4V3Cu by selective laser melting is a promising strategy to enhance the antibacterial activity without sacrificing cytocompatibility.

关键词： Ti6Al4V3Cu Groove Corrosion resistance Antibacterial Biocompatibility

Lanthanum doped octacalcium phosphate/polylactic acid scaffold fabricated by 3D printing for bone tissue engineering

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Journal of Materials Science & Technology 2022年第23期118卷 229-242页

作者： Zeya Xu Bin lin Chaoqian Zhao Yanjin Lu Tingting Huang Yan Chen Jungang Li Rongcan Wu Wenge Liu jinxin lin Key Laboratory of Optoelectronic Materials Chemical and Physics Fujian Institute of Research on the Structure of MatterChinese Academy of Sciences155 West Yangqiao RoadFuzhou 350002China University of Chinese Academy of Sciences Beijing 100049China Orthopedics Department Fujian Medical University Union HospitalFuzhou 350001China

Lanthanum(La)has tremendous potential in the treatment and prevention of bone diseases especially osteoporosis and metabolic ***,controlling its distribution and keeping the release of La^(3+)ions sustained and steady in the body is still a big *** this study,we prepared La-OCP powders via co-precipitation method,and further prepared La-OCP/PLA porous scaffolds by 3 D ***^(3+)was successfully introduced into the OCP crystal structure and substituted Ca^(2+)at the Ca-5 and Ca-8 *** particular,some La^(3+)ions were deposited on the crystal surface in the form of *** octacalcium phosphate(OCP,Ca_(8)H_(2)(PO_(4))_6·5 H_(2)O)crystals and nanoparticles played as the carriers for La^(3+)*** La-OCP/PLA scaffolds displayed obvious mineralization effects and sustained release of La^(3+).The scaffolds contained a uniform structure with rough micro surface topography which acted as a suitable pathway for BMSCs cells to adhere,grow and *** a certain La^(3+)concentration,the extracts from La-OCP/PLA scaffolds increased the expression of osteogenesis-related genes,thus promoting the osteogenic differentiation of ***,the extracts regulated the immune *** experiment in vivo proved that La-OCP/PLA porous scaffolds were safe and could enhance bone defect regeneration in *** findings suggest that 3 D printed La-OCP/PLA porous scaffolds have promising potentials in bone tissue engineering.

关键词： Lanthanum Octacalcium phosphate Scaffold 3D printing Bone tissue engineering Polylactic acid

Tuning osteoporotic macrophage responses to favour regeneration by Cu-bearing titanium alloy in Porphyromonas gingivalis lipopolysaccharide-induced microenvironments

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Regenerative Biomaterials 2021年第1期8卷 102-111页

作者： Xiongcheng Xu Yanjin Lu ling Zhou Mengjiao He Jin Zhuo Quan Zhong Kai Luo jinxin lin Fujian Key Laboratory of 0ral Diseases&Fujian Provincial Engineering Research Center of Oral Biomaterial&Stomatological Key laboratory of Fujian College and University School and Hospital of StomatologyFujian Medical UniversityFuzhou 350002China Institute of Stomatology&Laboratory of Oral Tissue Engineering School and Hospital of StomatologyFujian Medical UniversityFuzhou 350002China Key Laboratory of Optoelectronic Materials Chemistry and Physics Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China University of Chinese Academy of Sciences Beijig 100049China Department of Stomatology Fujian Provincial Governmental Hospital&Fujian Health College Afilited HospitalFuzhou 350003China

Guided bone regeneration in inflammatory microenvironments of osteoporotic patients with large alve-olar bone defects remains a great *** are necessary for alveolar bone regeneration via their polarization and paracrine *** previous studies showed that Cu-bearing Ti6AI4V alloys are capable of regulating macrophage *** considering the complexity of oral microenvir-onments,the influences of Cu-bearing Ti6AI4V alloys on osteoporotic macrophages in infectious microenvironments are worthy of further *** this study,we fabricated Ti6AI4V-Cu alloy by selective laser melting technology and used Porphyromonas gingivalis lipopolysaccharide(P.g-LPS)to imitate oral pathogenic bacterial ***,we evaluated the impacts of T6AI4V-Cu on osteoporotic macrophages in infectious *** results indicated that Ti6AI4V-Cu not only inhibited the P.g-LPS-induced M1 polarization and pro-inflammatory cytokine production of osteoporotic macrophages but also shifted polarization towards the pro-regenerative M2 phenotype and remarkably promoted antinflammatory cytokine *** addition,T6AI4V-Cu effectively promoted the actity of COMMD1 to potentially repress NF-κB-mediated *** is concluded that the Cubearing Ti6AI4V alloy results in ameliorated osteoporotic macrophage responses to create a favourable microenvironment under infectious conditions,which holds promise to develop a GBR-barrier membrane for alveolar bone regeneration of osteoporosis patients.

关键词： copper osteoporosis macrophages inflammation

Defect Engineering of Disordered Carbon Anodes with Ultra-High Heteroatom Doping Through a Supermolecule-Mediated Strategy for Potassium-Ion Hybrid Capacitors

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Nano-Micro Letters 2023年第3期15卷 248-265页

作者： Lei Zhao Shirong Sun jinxin lin Lei Zhong Liheng Chen Jing Guo Jian Yin Husam N.Alshareef Xueqing Qiu Wenli Zhang Guangdong Provincial Key Laboratory of Plant Resources Biorefinery School of Chemical Engineering and Light IndustryGuangdong University of Technology(GDUT)100 Waihuan Xi RoadPanyu DistrictGuangzhou 510006People’s Republic of China Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory(Rongjiang Laboratory) Jieyang 515200People’s Republic of China Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province School of Resources and MaterialsNortheastern University at QinhuangdaoQinhuangdao 066004People’s Republic of China Materials Science and Engineering Physical Science and Engineering DivisionKing Abdullah University of Science and Technology(KAUST)Thuwal 23955‑6900Saudi Arabia School of Advanced Manufacturing Research Institute of Green Chemical Engineering and Advanced MaterialsGuangdong University of Technology(GDUT)JieyangJieyang 515200People’s Republic of China

Amorphous carbons are promising anodes for high-rate potassium-ion *** low-temperature annealed amorphous carbons display unsatisfactory ***-induced defect engineering of amorphous carbons could enhance their reversible ***,most lignocellulose biomasses lack heteroatoms,making it a challenge to design highly heteroatom-doped carbons(>10 at%).Herein,we report a new preparation strategy for amorphous carbon ***/sulfur co-doped lignin-derived porous carbons(NSLPC)with ultra-high nitrogen doping levels(21.6 at%of N and 0.8 at%of S)from renewable lignin biomacromolecule precursors were prepared through a supramolecule-mediated pyrolysis *** supermolecule/lignin composite decomposes forming a covalently bonded graphitic carbon/amorphous carbon intermediate product,which induces the formation of high heteroatom doping in the obtained *** unique pyrolysis chemistry and high heteroatom doping of NSLPC enable abundant defective active sites for the adsorption of K+and improved *** NSLPC anode delivered a high reversible capacity of 419 mAh g^(-1)and superior cycling stability(capacity retention of 96.6%at 1 A g^(-1)for 1000 cycles).Potassiumion hybrid capacitors assembled by NSLPC anode exhibited excellent cycling stability(91%capacity retention for 2000 cycles)and a high energy density of 71 Wh kg^(-1)at a power density of 92 W kg^(-1).

关键词： Defect Heteroatom Active sites Supramolecule Potassium-ion hybrid capacitors

Impact,Mechanism,Monitoring of Land Subsidence in Coastal Cities(Annual Work of IGCP 663)

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Acta Geologica Sinica(English Edition) 2019年第S01期93卷 158-159页

作者： YAN Xuexin YANG Tianliang XU Yan Luigi TOSI Esther STOUTHAMER Heri ANDREAS lin jinxin HUANG Xinlei Key Laboratory of Land Subsidence Monitoring and Prevention Ministry of Land and ResourcesShanghai 200072China Shanghai Institute of Geological Survey Shanghai 200072China Shanghai Engineering Technology Research Center of Land Subsidence Shanghai 200072China Institute of Marine Sciences National Research CouncilArsenale Tesa104-Castello 2737/F30122-VeniceItaly Institute of Geosciences and Earth Resources National Research Councilvia G.Gradenigo635131-PaduaItaly Department of Physical Geography Faculty of GeosciencesUtrecht University3584 CSUtrechtthe Netherlands Geodesy Research Division Institute of Technology BandungBandung 40132Indonesia

Land subsidence is a worldwide geohazard consisting in the lowering of the ground surface due to natural and human-induced processes occurring in the shallow and deep *** the last two decades,land subsidence has caused damages and widespread impacts to a variety of infrastructures in coastal cities(Ma et al.,2011;Liu et al.,2016;Minderhoud et al.,2018).

关键词： land subsidence coastal cities case studies reclaimed soil

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城市建筑形态特征与地表温度关系研究

北京测绘 2024年第3期38卷 361-366页

作者：吴凤敏郑稚棚李睿桐钱进秦松蒲冠宇曾攀林晋鑫重庆市地理信息和遥感应用中心重庆401147 自然资源部国土空间规划监测评估预警重点实验室重庆401147 重庆工程职业技术学院重庆402260

城市建筑形态与地表温度关系研究,能够为城市未来空间形态优化、城市热岛效应缓解等提供科学参考。以重庆市南岸区为研究区,基于Landsat-8数据和城市建筑物调查数据,开展地表温度与城市建筑形态指标(平均建筑密度、平均建筑高度、建筑... 详细信息

城市建筑形态与地表温度关系研究,能够为城市未来空间形态优化、城市热岛效应缓解等提供科学参考。以重庆市南岸区为研究区,基于Landsat-8数据和城市建筑物调查数据,开展地表温度与城市建筑形态指标(平均建筑密度、平均建筑高度、建筑容积率、平均建筑体积、天空开阔度)相关性研究,分析不同梯度视角下地表温度与城市建筑形态指标的线性关系特征,建立多元线性回归模型,分析城市建筑形态对地表温度的影响及其差异性。结果显示:城市建筑形态指标中仅平均建筑密度与地表温度相关性较高,其余指标相关系数均较小,表明在山地城市区域地表温度对建筑形态指标响应不强;建立城市建筑形态指标与地表温度多元线性回归模型,因子数量越多模型越准确,但计算复杂度越高,且超过3个因子后模型虽然与地表温度相关性增加,但增加幅度较小,在兼顾模型准确性和计算复杂度时考虑2因子或3因子模型较为适宜。

关键词：城市建筑形态地表温度平均建筑密度天空开阔度

New phenylbutenoids and terpene glycosides from Ginkgo biloba leaves

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Chinese Journal of Natural Medicines 2024年第2期22卷 161-170页

作者： SUN Zeshi lin Shan WU Zhi-Li DONG Hong-Yuan XU Xi-Ke LI Hui-Liang WANG jinxin School of Pharmacy Second Military Medical UniversityShanghai 200433China State Key Laboratory of New Drug and Pharmaceutical Process Shanghai Institute of Pharmaceutical IndustryChina State Institute of Pharmaceutical IndustryShanghai 201203China

Our continued works on the chemical constituents of Ginkgo biloba(***)leaves has led to the isolation of two novel phenylbutenoids(1,2),along with five previously unidentified terpene glycosides(3−7).Among them,compounds 1 and 2 represent unique(Z)-phenylbutenoids,3−6 are megastigmane glycosides,and 7 is identified as a rare bilobanone glycoside(Fig.1).This study marks the first reported isolation of phenylbutenoid and bilobanone glycoside from *** chemical structures of these compounds were elucidated through extensive spectroscopic analysis,including HR-ESI-MS and various 1D and 2D NMR ***,the absolute configurations of these molecules were determined using Mosher’s method,ECD experiments,and Cu-KαX-ray crystallographic analyses.

关键词： Ginkgo biloba Phenylbutenoid Megastigmane glycoside Bilobanone glycoside