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| 1 | TRICHOMEAND ARTEMISININ REGULATOR 1 Is Required for Trichome Development and Artemisinin Biosynthesis in Artemisia annua显示文摘毛状体,许多植物种类的表面上的小伸出,能生产并且存储各种各样的第二等的新陈代谢的产品。Artemisinin,最著名并且为疟疾的有势力药,被综合,存储,并且由 Artemisia annua 毛状体藏匿了。然而,糟糕在 A.annua 遗体调整 artemisinin 的生合成和毛状体的发展的分子的基础理解。这里,我们报导那一个 AP2 抄写因素,毛状体和 ARTEMISININ 管理者 1 (TAR1 ) ,在在 A.annua 调整毛状体的发展和 artemisinin 的生合成起关键作用。TAR1,编码特殊位于原子核的蛋白质,主要在年轻叶子,花芽,和一些毛状体被表示。在 TAR1-RNAi 线,毛状体的形态学和表皮的蜡的作文被改变,并且 artemisinin 内容戏剧性地被减少它能被 TAR1 oeverexpression 显著地增加。当 TAR1 是 silenced 或 overexpressed 时,涉及 artemisinin 生合成的几关键基因的表示层次被改变。由 electrophoretic 活动性移动,酵母一个混血儿和短暂转变 -glucuronidase 试金,我们证明广告和 CYP71AV1,在 artemisinin 的生合成小径的二关键基因,是可能的 TAR1 的直接目标。一起拿,我们的结果显示 TAR1 是在 A.annua 调整毛状体开发和 artemisinin 生合成的分子的网络的一个关键部件。 | Hexin Tan Ling Xiao Shouhong Gao Qing Li Junfeng Chen Ying Xiao Qian Ji Ruibing Chen Wansheng Chen Lei Zhang | 2015 | Molecular Plant2015，8，9： | 37 |
| 2 | Nitrous oxide emissions from a maize field during two consecutive growing seasons in the North China Plain显示文摘Nitrous oxide (N 2 O) emissions from a maize field in the North China Plain (Wangdu County,Hebei Province,China) were investigated using static chambers during two consecutive maize growing seasons in the 2008 and 2009.The N 2 O pulse emissions occurred with duration of about 10 days after basal and additional fertilizer applications in the both years.The average N 2 O fluxes from the CK (control plot,without crop,fertilization and irrigation),NP (chemical N fertilizer),SN (wheat straw returning plus chemical N fertilizer),OM- 1/2N (chicken manure plus half chemical N fertilizer) and OMN (chicken manure plus chemical N fertilizer) plots in 2008 were 8.51,72.1,76.6,101,107 ng N/(m 2 ·sec),respectively,and in 2009 were 33.7,30.0 and 35.0 ng N/(m 2 ·sec) from CK,NP and SN plots,respectively.The emission factors of the applied fertilizer as N 2 O-N (EFs) were 3.8% (2008) and 1.1% (2009) for the NP plot,3.2% (2008) and 1.2% (2009) for the SN plot,and 2.8% and 2.2% in 2008 for the OM-1/2N and OMN plots,respectively.Hydromorphic properties of the investigated soil (with gley) are in favor of denitrification.The large differences of the soil temperature and water-filled pore space (WFPS) between the two maize seasons were suspected to be responsible for the significant yearly variations.Compared with the treatments of NP and SN,chicken manure coupled with compound fertilizer application significantly reduced fertilizer loss rate as N 2 O-N. | Yuanyuan Zhang Junfeng Liu Yujing Mu Zhu Xu Shuwei Pei Xiaoxiu Lun Ying Zhang | 2012 | Journal of Environmental Sciences2012，24，1： | 15 |
| 3 | The electron structure and photocatalytic activity of Ti(IV) doped Bi_2O_3显示文摘Density functional theory (DFT) plays a significant role in the development of visible light responsive photocatalysts.Based on the first-principles plane-wave ultrasoft pseudopotential (USPP) method,the crystal structures of α,β,γ,and δ-Bi2O3 were optimally calculated for the total density of states (TDOS) and the partial density of states (PDOS) of Bi,O atoms.The calculation for Ti(IV) doped Bi2O3 supercell was carried out.The effects of Ti(IV)-doping on the electron structures and light absorption properties of various Bi2O3 were analyzed.The results showed that Ti 3d orbital appeared in the forbidden band of Bi2O3 and hybridized with O 2p,Bi 6p orbitals.The narrowed band gap (Eg) and red-shift of light absorption edge are responsible for the enhanced photocatalytic activity of Bi2O3.The β-Bi2O3 and Ti-doped β-Bi2O3 were prepared by a hydrothermal synthesis method.The improvement of the photocatalytic activity of Bi2O3 has also been verified by the characteristics of the UV-vis diffuse reflection spectrum and the experimental evaluation of the photocatalytic degradation of crystal violet in aqueous solution. | YIN LiFeng NIU JunFeng SHEN ZhenYao SUN Ying | 2011 | Science China Chemistry2011，54，1： | 7 |
| 4 | Safety and efficacy of meplazumab in healthy volunteers and COVID-19 patients: a randomized phase 1 and an exploratory phase 2 trial显示文摘Recent evidence suggests that CD147 serves as a novel receptor for severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection.Blocking CD147 via anti-CD147 antibody could suppress the in vitro SARS-CoV-2 replication.Meplazumab is a humanized anti-CD147 IgG_(2) monoclonal antibody,which may effectively prevent SARS-CoV-2 infection in coronavirus disease 2019(COVID-19)patients.Here,we conducted a randomized,double-blinded,placebo-controlled phase 1 trial to evaluate the safety,tolerability,and pharmacokinetics of meplazumab in healthy subjects,and an open-labeled,concurrent controlled add-on exploratory phase 2 study to determine the efficacy in COVID-19 patients.In phase 1 study,59 subjects were enrolled and assigned to eight cohorts,and no serious treatment-emergent adverse event(TEAE)or TEAE grade≥3 was observed.The serum and peripheral blood Cmax and area under the curve showed non-linear pharmacokinetic characteristics.No obvious relation between the incidence or titer of positive anti-drug antibody and dosage was observed in each cohort.The biodistribution study indicated that meplazumab reached lung tissue and maintained>14 days stable with the lung tissue/cardiac blood-pool ratio ranging from 0.41 to 0.32.In the exploratory phase 2 study,17 COVID-19 patients were enrolled,and 11 hospitalized patients were involved as concurrent control.The meplazumab treatment significantly improved the discharged(P=0.005)and case severity(P=0.021),and reduced the time to virus negative(P=0.045)in comparison to the control group.These results show a sound safety and tolerance of meplazumab in healthy volunteers and suggest that meplazumab could accelerate the recovery of patients from COVID-19 pneumonia with a favorable safety profile. | Huijie Bian Zhao-Hui Zheng Ding Wei Aidong Wen Zheng Zhang Jian-Qi Lian Wen-Zhen Kang Chun-Qiu Hao Jing Wang Rong-Hua Xie Ke Dong Jie-Lai Xia Jin-Lin Miao Wen Kang Guoquan Li Di Zhang Mingru Zhang Xiu-Xuan Sun Likun Ding Kui Zhang Junfeng Jia Jin Ding Zhiqin Li Yanyan Jia Lin-Na Liu Zhe Zhang Zhao-Wei Gao Hong Du Na Yao Qing Wang Ke Wang Jie-Jie Geng Bin Wang Ting Guo Ruo Chen Yu-Meng Zhu Li-Juan Wang Qian He Rui-Rui Yao Ying Shi Xiang-Min Yang Jian-Sheng Zhou Yi-Nan Ma Ya-Tao Wang Xue Liang Fei Huo Zhe Wang Yang Zhang Xu Yang Ye Zhang Lu-Hua Gao Ling Wang Xiao-Chun Chen Hao Tang Shuang-Shuang Liu Qing-Yi Wang Zhi-Nan Chen Ping Zhu | 2021 | Signal Transduction and Targeted Therapy2021，6，6： | 2 |
| 5 | Kernel position effects of grain morphological characteristics by X-ray micro-computed tomography (μCT)显示文摘Grain size and shape are important factors for yield and quality.The difference in grain phenotypic characteristics in the same maize hybrid is related to its position in the ear.This study aimed to clarify the distribution characteristics of grain morphological characteristics in the ear and to provide guidance for research of grain phenotype and kernel position effects.Three maize hybrids were used in the experiment,namely,Denghai 618(DH618),KX3564,and Xianyu 335(XY335),and the kernel number per row were 40,40,and 36,respectively.The X-rayμCT was applied to obtain five kernel morphological indicators,including grain length,width,thickness,volume,surface area.Grain sphericity,length-width ratio,specific surface area,and volume coefficient were further calculated.The results showed that there were three types of maize ear morphological indicators trends:grain length,width,volume,and surface area were parabolic;thickness and sphericity were inverted parabolic;length-to-width ratio and specific surface area were irregular.The volume coefficient of grain at different parts of the ear,namely the relation coefficient between grain volume and grain length,width,and thickness,was determined.The average value of the middle grains morphological indicators of the ear was taken to select kernels representing stable characteristics of the variety.Within the range of 5%deviation from the morphological mean value of the middle grains of the ear,the grains in the middle part accounted for 26.39%of the total ear,about 10 grains extending from the 14th grain at the base of the ear to the top.Within the range of 10%deviation,the middle accounted for 47.22%,about 18 grains extending from the 12th grain at the base of the ear to the top.This study found that grain morphological indicators were greatly different at different positions of the maize ear,and showed different change rules as extend from the base to the top of the ear.Therefore,there were different grain volume coefficients at different positions of maize ear.And the representative sampling range on maize ear was determined based on the comprehensive analysis of different morphological indexes variation of grain. | Xuebo Yin Junfeng Hou Bo Ming Ying Zhang Xinyu Guo Shang Gao Keru Wang Peng Hou Shaokun Li Ruizhi Xie | 2021 | International Journal of Agricultural and Biological Engineering2021，14，2： | 2 |
| 6 | The thermo-electric effect of magnetite and the mechanism of geo-electric abnormalities during earthquakes显示文摘The thermo-electric coefficients of twenty-six magnetite samples,formed either by magmatism or metamorphism,were tested by the thermo-electric instrument BHET—06.Results showed that the coefficient is of a constant value of about -0.05 mV/℃.It is emphasized that because every magnetite grain was tested randomly,the coefficient is independent of the crystallographic direction.This fact means the thermal voltage generated from a single magnetite crystal can be accumulated,and as a result a new thermo-electric field can arise when a gradient thermal field exists and is active within the earth's crust.Because magnetite is widespread in the earth's crust(generally appearing more in the middle-lower crust),there is more-than-random probability that the additional thermo-electric field can be generated when certain thermal conditions are fulfilled.We,therefore,used the thermo-electric effect of magnetite to study the mechanism responsible for the presence of abnormal geo-electric fields during earthquake formation and occurrence, because gradient thermal fields always exist before earthquakes.The possible presence of additional thermo-electric fields was calculated under theoretical seismological conditions,using the following calcu-lation formula:E= - 0.159(σ×△T×φ×ρ_2×[(h^2-2x^2)cosα+ 3hxsinα]/ρ_1(h^2 +x^2)^(5/2)).In the above formula,σis thermo-electric coefficient of magnetite,△T is the temperature difference acting on it,φis a sectional area on a block of magnetite vertically perpendicular to the direction of the thermal current.ρ_1 andρ_2 are the respective resistivities of magnetite and the crust,and h,α,and x,respectively,h is the depth of embedded magnetite block,αmeans the angle created by the horizontal line and ligature of the two poles of magnetite block,and x is the distance from observation point to projective center point of the magnetite block on earth surface.According to simulations calculated with this formula,additional thermo-electric field intensity may reach as high as n to n×10~2 mV/km.This field is strong enough to cause obvious anomalies in the background geo-electric field,and can be easy probed by earthquake monitoring equipment. Therefore,we hypothesize that geo-electric abnormalities which occur during earthquakes may be caused by the thermo-electric effect of magnetite. | Junfeng Shen Xuhui Shen Qian Liu Na Ying | 2010 | Geoscience Frontiers2010，1，1： | 2 |
| 7 | A ratiometric near-infrared naphthalimide-based fluorescent probe with high sensitivity for detecting Fe^(2+)in vivo显示文摘Iron is one of the essential trace elements in the human body.It plays an important role in human biology and pathology.Deregulation of iron levels in cells is associated with disease development.In this work,we synthesized a novel near-infrared intramolecular charge transfer(ICT)based ratiometric fluorescent probe to detect Fe^(2+),by using naphthalimide and indole moieties as building blocks.Our work showed that the radiometric probe has excellent selectivity,sensitivity and rapid response.Moreover,we could successfully perform real-time monitoring of Fe^(2+) in He La cells and C.elegans. | Lina Huang Yu Chen Yuqiang Zhao Yumin Wang Junwei Xiong Junfeng Zhang Xianghua Wu Ying Zhou | 2020 | Chinese Chemical Letters2020，31，11： | 2 |
| 8 | Adsorption of phosphorus on sediments from the Three-Gorges Reservoir (China) and the relation with sediment compositions显示文摘 | Wang Ying Shen Zhenyao Niu Junfeng | 2009 | Journal of Hazardous Materials2009，162，1： | 1 |
| 9 | Ultra-thin metal-organic framework nanoribbons显示文摘Structure engineering of metal-organic frameworks(MOFs)at the nanometer scale is attracting increasing interest due to their unique properties and new functions that normally cannot be achieved in bulk MOF crystals.Here,we report the preparation of ultra-thin MOF nanoribbons(NRBs)by using metal-hydroxide nanostructures as the precursors.Importantly,this general method can be used to synthesize various kinds of ultra-thin MOF NRBs,such as MBDC(M=Co,Ni;BDC=1,4-benzenedicarboxylate),NiCoBDC,CoTCPP(TCPP=tetrakis(4-carboxyphenyl)porphyrin)and MIL-53(Al)NRBs.As a proof-of-concept application,the as-prepared ultra-thin Co BDC NRBs have been successfully used as a fluorescent sensing platform for DNA detection,which exhibited excellent sensitivity and selectivity.The present strategy might open an avenue to prepare MOF nanomaterials with new structures and unique properties for various promising applications. | Bingqing Wang Meiting Zhao Liuxiao Li Ying Huang Xiao Zhang Chong Guo Zhicheng Zhang Hongfei Cheng Wenxian Liu Jing Shang Jing Jin Xiaoming Sun Junfeng Liu Hua Zhang | 2020 | National Science Review2020，7，1： | 1 |
| 10 | Isolation and analysis of water stress induced genes in maize seedlings by subtraetive PCR and cDNA macroarry显示文摘 | Zheng Jun Zhao Junfeng Tao Yazhong Wang Jianhua Liu Yunjun Fu Junjie Jin Ying Gao Peng Zhang Jinpeng Bai Yunfeng Wang Guoying | 2004 | Plant Molecular Biology2004，55，： | 1 |
| 11 | An evaluation of management performance about company core competence based on DEA 显示文摘 | SI Yongzhuang YING Junfeng | 2005 | Journal of Systems Science and Information2005，3，2： | 1 |
| 12 | Distribution and speciation of heavy metals in sediments from the mainstream, tributaries, and lakes of the Yangtze River catchment of Wuhan, China显示文摘 | Zhifeng Yang Ying Wang Zhenyao Shen Junfeng Niu Zhenwu Tang | 2008 | Journal of Hazardous Materials2008，，2： | 1 |
| 13 | Growth and property characterizations of photonic crystal structures consisting of colloidal microparticles显示文摘 | SUN Hongbo SONG Junfeng XU Ying | 2000 | J Opt Soc Am B2000，17，3： | 1 |
| 14 | Cu-doped Bi/Bi_(2)WO_(6) catalysts for efficient N_(2) fixation by photocatalysis显示文摘In this paper,Cu-doped Bi_(2)WO_(6)was synthesized via a solvothermal method and applied it in photocatalytic N_(2)immobilization.Characterization results showed the presence of a small amount of metallic Bi in the photocatalyst,indicating that the synthesized photocatalyst is actually Bi/Cu-Bi_(2)WO_(6)composite.The doped Cu had a valence state of+2 and most likely substituted the position of Bi^(3+).The introduced Cu did not affect the metallic Bi content,but mainly influenced the energy band structure of Bi_(2)WO_(6).The band gap was slightly narrowed,the conduction band was elevated,and the work function was reduced.The reduced work function improved the transfer and separation of charge carriers,which mainly caused the increased photoactivity.The optimized NH_(3)generation rates of Bi/Cu-Bi_(2)WO_(6)reached 624 and 243μmol·L^(-1)·g^(-1)·h^(-1)under simulated solar and visible light,and these values were approximately 2.8 and 5.9 times higher those of Bi/Bi_(2)WO_(6),respectively.This research provides a method for improving the photocatalytic N_(2)fixation and may provide more information on the design and preparation of heteroatom-doped semiconductor photocatalysts for N_(2)-to-NH_(3)conversion. | Xiaojing Li Chunran Zhao Junfeng Wang Jiayu Zhang Ying Wu Yiming He | 2023 | Frontiers of Chemical Science and Engineering2023，17，10： | 1 |
| 15 | Characterization and expression profiling of 4-hydroxyphenylpyruvate dioxygenase gene ( Smhppd ) from Salvia miltiorrhiza hairy root cultures显示文摘 | Ying Xiao Peng Di Junfeng Chen Ying Liu Wansheng Chen Lei Zhang | 2009 | Molecular Biology Reports2009，，7： | 1 |
| 16 | High piezo/photocatalytic efficiency of Ag/Bi_(5)O_(7)I nanocomposite using mechanical and solar energy for N2 fixation and methyl orange degradation显示文摘In this work,Ag/Bi_(5)O_(7)I nanocomposite was prepared and firstly applied in piezo/photocatalytic reduction of N2 to NH3 and methyl orange(MO)degradation.Bi_(5)O_(7)I was synthesized via a hydrothermal-calcination method and shows nanorods morphology.Ag nanoparticles(NPs)were photo deposited on the Bi_(5)O_(7)I nanorods as electron trappers to improve the spatial separation of charge carriers,which was confirmed via XPS,TEM,and electronic chemical analyses.The catalytic test indicates that Bi_(5)O_(7)I presents the piezoelectric-like behavior,while the loading of Ag NPs can strengthen the character.Under ultrasonic vibration,the optimal Ag/Bi_(5)O_(7)I presents high efficiency in MO degradation.The degradation rate is determined to be 0.033 min1,which is 4.7 folds faster than that of Bi_(5)O_(7)I.The Ag/Bi_(5)O_(7)I also presents a high performance in piezocatalytic N2 fixation.The piezocatalytic NH3 generation rate reaches 65.4 μmol L^(-1)g^(-1)h^(-1)with water as a hole scavenger.The addition of methanol can hasten the piezoelectric catalytic reaction.Interestingly,when ultrasonic vibration and light irradiation simultaneously act on the Ag/Bi_(5)O_(7)I catalyst,higher performance in NH3 generation and MO degradation is observed.However,due to the weak adhesion of Ag NPs,some Ag NPs would fall off from the Bi_(5)O_(7)I surface under long-term ultrasonic vibration,which would greatly reduce the piezoelectric catalytic performance.This result indicates that a strong binding force is required when preparing the piezoelectric composite catalyst.The current work provides new insights for the development of highly efficient catalysts that can use multiple energies. | Lu Chen Wenqian Zhang Junfeng Wang Xiaojing Li Yi Li Xin Hu Leihong Zhao Ying Wu Yiming He | 2023 | Green Energy & Environment2023，8，1： | 1 |
| 17 | Structural basis of nucleosome deacetylation and DNA linker tightening by Rpd3S histone deacetylase complex显示文摘In Saccharomyces cerevisiae,cryptic transcription at the coding region is prevented by the activity of Sin3 histone deacetylase(HDAC)complex Rpd3S,which is carried by the transcribing RNA polymerase Ⅱ(RNAPⅡ)to deacetylate and stabilize chromatin.Despite its fundamental importance,the mechanisms by which Rpd3S deacetylates nucleosomes and regulates chromatin dynamics remain elusive.Here,we determined several cryo-EM structures of Rpd3S in complex with nucleosome core particles(NCPs),including the H3/H4 deacetylation states,the alternative deacetylation state,the linker tightening state,and a state in which Rpd3S co-exists with the Hho1 linker histone on NCP.These structures suggest that Rpd3S utilizes a conserved Sin3 basic surface to navigate through the nucleosomal DNA,guided by its interactions with H3K36 methylation and the extra-nucleosomal DNA linkers,to target acetylated H3K9 and sample other histone tails.Furthermore,our structures illustrate that Rpd3S reconfigures the DNA linkers and acts in concert with Hho1 to engage the NCP,potentially unraveling how Rpd3S and Hho1 work in tandem for gene silencing. | Shuqi Dong Huadong Li Meilin Wang Nadia Rasheed Binqian Zou Xijie Gao Jiali Guan Weijie Li Jiale Zhang Chi Wang Ningkun Zhou Xue Shi Mei Li Min Zhou Junfeng Huang He Li Ying Zhang Koon Ho Wong Xiaofei Zhang William Chong Hang Chao Jun He | 2023 | Cell Research2023，33，10： | 1 |
| 18 | Effects of coal molecular structure and pore morphology on methane adsorption and accumulation mechanism显示文摘The adsorption,diffusion,and aggregation of methane from coal are often studied based on slit or carbon nanotube models and isothermal adsorption and thermodynamics theories.However,the pore morphology of the slit model involves a single slit,and the carbon nanotube model does not consider the molecular structure of coal.The difference of the adsorption capacity of coal to methane was determined without considering the external environmental conditions by the molecular structure and pore morphology of coal.The study of methane adsorption by coal under single condition cannot reveal its mechanism.In view of this,elemental analysis,FTIR spectrum,XPS electron energy spectrum,13C NMR,and isothermal adsorption tests were conducted on the semi-anthracite of Changping mine and the anthracite of Sihe Mine in Shanxi Province,China.The grand canonical Monte Carlo(GCMC)and molecular dynamics simulation method was used to establish the coal molecular structure model.By comparing the results with the experimental test results,the accuracy and practicability of the molecular structure model are confirmed.Based on the adsorption potential energy theory and aggregation model,the adsorption force of methane on aromatic ring structure,pyrrole nitrogen structure,aliphatic structure,and oxygen-containing functional group was calculated.The relationship between pore morphology,methane aggregation morphology,and coal molecular structure was revealed.The results show that the adsorption force of coal molecular structure on methane is as follows:aromatic ring structure(1.96 kcal/mol)>pyridine nitrogen(1.41 kcal/mol)>pyrrorole nitrogen(1.05 kcal/mol)>aliphatic structure(0.29 kcal/mol)>oxygen-containing functional group(0.20 kcal/mol).In the long and narrow regular pores of semi-anthracite and anthracite,methane aggregates in clusters at turns and aperture changes,and the adsorption and aggregation positions are mainly determined by the aromatic ring structure,the positions of pyrrole nitrogen and pyridine nitrogen.The degree of aggregation is controlled by the interaction energy and pore morphology.The results pertaining to coal molecular structure and pore morphology on methane adsorption and aggregation location and degree are conducive to the evaluation of the adsorption mechanism of methane in coal. | Jingshuo ZHANG Xiaoming NI Ying HAN Junfeng LIN | 2023 | Frontiers of Earth Science2023，17，1： | 0 |
| 19 | Fabrication and biological evaluation of polyether ether ketone(PEEK)/bioceramic composites显示文摘The repair of vascularized bone defects represents a significantly clinical challenge,and vascular regeneration is one of the necessary factors to promote bone tissue regeneration.To effectively repair large bone defects,new bone tissue must regenerate with a rich vascular network.Therefore,the development of biomaterials that can promote the regeneration of vascularized bone tissue is currently receiving attention from researchers.In this study,Li–Ca–Si bioceramics(LCS)containing Li,Ca,and Si elements was developed,then LCS was compounded with PEEK to prepare PEEKt10%LCS,PEEKt20%LCS,PEEKt30%LCS,and the effect of LCS-PEEK composite biomaterials on the proliferation and angiogenic ability of human umbilical vascular endothelial cells(HUVECs)further explored by Cell Counting Kit-8(CCK-8),scanning electron microscope(SEM),quantitative real-time PCR(QPCR),Western Blotting and enzyme linked immunosorbent assay(ELISA).The results showed that HUVECs inoculated on 30%LCS t PEEK material exhibited the best proliferation ability.And the adhesion ability of endothelial cells on PEEK gradually increased with the increase of LCS contents.Furthermore,the angiogenic ability of HUVECs on LCS-PEEK composites was examined using QPCR and Western blotting,and the results showed that the expression of angiogenic-related genes and proteins of HUVECs on PEEK composites gradually increased with increasing LCS concentration.These results demonstrated that the angiogenic ability of HUVECs was effectively stimulated by LCS-modified PEEK materials.The present results indicate that the PEEK material can be modified with bioceramics to promote angiogenesis,and this study lay the foundation for the subsequent development of scaffolds that promote vascularized bone tissue regeneration. | Junfeng Chen Guangxiu Cao Ying Li Ning Li Zhipo Du Xiaoming Li | 2022 | Progress in Natural Science:Materials International2022，32，3： | 0 |
| 20 | A Spiral Graphene Framework Containing Highly Ordered Graphene Microtubes for Polymer Composites with Superior Through-Plane Thermal Conductivity显示文摘As the power density of electronic devices increases,there has been an urgent demand to develop highly conductive polymer composites to address the accompanying thermal management issues.Due to the ultra-high intrinsic thermal conductivity,graphene is considered a very promising filler to improve the thermal conductivity of polymers.However,graphene-based polymer composites prepared by the conventional mixing method generally have limited thermal conductivity,even under high graphene loading,due to the failure to construct efficient heat transfer pathways in the polymer matrix.Here,a spiral graphene framework(SGF)containing continuous and highly ordered graphene microtubes was developed based on a modified CVD method.After embedding into the epoxy(EP)matrix,the graphene microtubes can act as efficient heat pathways,endowing the SGF/EP composites with a high through-plane thermal conductivity of 1.35 W·m^(-1)·K^(-1) at an ultralow graphene loading of 0.86 wt%.This result gives a thermal conductivity enhancement per 1 wt%filler loading of 710%,significantly outperforming various graphene structures as fillers.In addition,we demonstrated the practical application of the SGF/EP composite as a thermal interface material for efficient thermal man-agement of the light-emitting diode(LED). | Jinrui Gong Xue Tan Qilong Yuan Zhiduo Liu Junfeng Ying Le Lv Qingwei Yan Wubo Chu Chen Xue Jinhong Yu Kazuhito Nishimura Nan Jiang Cheng-Te Lin Wen Dai | 2022 | Chinese Journal of Chemistry2022，40，3： | 0 |
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