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| 1 | Heat revolution on photophysical properties and electroluminescent performance of Ir(ppy)_3-doped bipolar host of oxadiazole derivatives attaching with inert group of tert-butyl moiety显示文摘Two bipolar materials,2,5-bis(2-(9H-carbazole-9-yl)phenyl)-1,3,4-oxadiazole(o-CzOXD)and 2,5-bis(2-(3',6'-di-tert-butyl-9H-carbazole-9-yl)phenyl)-1,3,4-oxadiazole(tBu-o-CzOXD),were synthesized according to reported methods.In parallel study,it was demonstrated that introduction of inert tert-butyl group improved material thermal stability,even though this modification only had a slight influence to the photophysical and electrochemical properties of these materials.A comparative study focusing on effects of heat treatment was carried out on the quartz glass substrates with vacuum deposited films containing one of the bipolar host doped with 6 wt%fac-tris(2-phenylpyridinato-N,C2’)iridium(Ir(ppy)3).Results show that when the two samples were heated,the absorption,emission,and photo images of the host:dopant system changed,with the o-CzOXD suffering more severe degradation under high temperature,which is consistent with their thermal stability.In addition,it was proved that the high temperature-annealed host:dopant system can enhance the emission of the dopant.This finding was used as a guideline to improve our device performance.We fabricated two types of phosphorescent organic light-emitting devices(PhOLEDs),one was based on o-CzOXD,the other was based on tBu-o-CzOXD.They had analogous structure.We investigated the effect of heat on device performance by selectively annealing.Although these two freshly prepared devices exhibited similar performance,when annealed at 90°C for 10 min,the OLEDs based on tBu-o-CzOXD showed significant performance enhancement,which can be attributed to the observation that annealing Ir(ppy)3 doped host can change film morphology and enhance the dopant emission.The maximum efficiencies of the freshly prepared tBu-o-CzOXD device were 25.8 cd A-1,23.1lm W-1,and 9.3%;whereas those for annealed device were 47.0 cd A-1,42.2 lm W-1,and 13.4%. | WANG HongJiao LIU Chen MI BaoXiu SANG Jie LI Xin GAO ZhiQiang | 2014 | Science China Chemistry2014，57，6： | 1 |
| 2 | Highly time-resolved aerosol characteristics during springtime in Weizhou Island显示文摘A single particle aerosol mass spectrometer was deployed to measure the changes of single particle species and sizes during March 2015 in Weizhou Island of the Beibu Gulf, Guangxi province, South China. In this campaign, a total of 3,100,597 particles were sized, and 25.8%particles with both positive and negative mass spectrum were collected and 24.8%characterized in combination with the ART-2 a neural network algorithm. The distribution of sized particles was mainly in from 520 to 600 nm, and the diameters ranging from 340 to1000 nm accounted for above 90%. Eight types of particles were classified: Elemental Carbon containing(EC), Organic Carbon containing(OC), EC and OC combined containing particles,Na containing particles, K containing particles(K), Levoglucosan containing particles,mineral containing particles, and Heavy Metal containing particles(HM). EC, OC and K were the major containing particles, which accounted for 84.3% in the eight types particles. The relative ratio and size distribution of the three types were EC(48.1%, 620 nm), OC(12.7%,440 nm), and K(23.5%, 600 nm), respectively. The three types of particles were a bit increasing ratios compared with those in clean periods during haze pollution periods.Combined with the back-trajectory results from the Hysplit-4 model and local pollution sources revealed that the ambient air quality on the Weizhou Island may be influenced by biomass burning in the Indochina Peninsula(biomass burning in the Indochina Peninsula)from the transportation on higher level atmospheric layer and by mainland of south China located northeast of Weizhou Island on the ground. | Jingying Mao Zhiming Chen Zhaoyu Mo Xiaoyang Yang Hong Li Yonglin Liu Huilin Liu Jiongli Huang Junchao Yang Hongjiao Li | 2018 | Journal of Environmental Sciences2018，30，10： | 1 |
| 3 | The evolutionarycomplexity of complex adaptive supply networks: asimulation and case study显示文摘 | LI Gang YANG Hongjiao SUN Linyan | 2010 | International Journal of ProductionEconomics2010，124，2： | 1 |
| 4 | Synthesis of a meso-macro hierarchical porous carbon material for improvement of O2 diffusivity in Li-O2 batteries显示文摘 | Nie Hongjiao Zhang Yining Li Jing | 2014 | RSC Advances2014，4，17： | 1 |
| 5 | Layer-by-layer growth of ZIF-8 on electrospun carbon nanofiber membranes for high-performance supercapacistor electrode显示文摘In the past few decades, supercapacitor(SC) has attracted great attention due to its significant advantages over traditional rechargeable battery systems, such as high power density, fast charge-discharge rate, long cycle life and environmental friendliness [1]. Up to now, supercapacitors have been widely used in backup power, electric vehicles, mobile power and so on [2,3]. | Kan Mi Lanlan Song Hongjiao Nie Tao Liu Xianfeng Li | 2020 | Journal of Energy Chemistry2020，29，8： | 1 |
| 6 | All-Climate Aluminum-Ion Batteries Based on Binder-Free MOF-Derived FeS_(2)@C/CNT Cathode显示文摘Aluminum-ion batteries(AIBs)are promising next-generation batteries systems because of their features of low cost and abundant aluminum resource.However,the inferior rate capacity and poor all-climate performance,especially the decayed capacity under low temperature,are still critical challenges toward high-specific-capacity AIBs.Herein,we report a binder-free and freestanding metal-organic framework-derived FeS_(2)@C/carbon nanotube(FeS_(2)@C/CNT)as a novel all-climate cathode in AIBs working under a wide temperature window between−25 and 50℃ with exceptional flexibility.The resultant cathode not only drastically suppresses the side reaction and volu-metric expansion with high capacity and long-term stability but also greatly enhances the kinetic process in AIBs with remarkable rate capacity(above 151 mAh g^(−1) at 2 A g^(−1))at room temperature.More importantly,to break the bottleneck of the inherently low capacity in graphitic material-based all-climate AIBs,the new hierarchical conductive composite FeS_(2)@C/CNT highly promotes the all-climate performance and delivers as high as 117 mAh g^(−1) capacity even under−25°C.The well-designed metal sulfide electrode with remarkable performance paves a new way toward all-climate and flexible AIBs. | Yuxiang Hu Hongjiao Huang Deshuang Yu Xinyi Wang Linlin Li Han Hu Xiaobo Zhu Shengjie Peng Lianzhou Wang | 2021 | Nano-Micro Letters2021，13，10： | 1 |
| 7 | Boosting electrocatalytic hydrogen generation by a renewable porous wood membrane decorated with Fe-doped NiP alloys显示文摘Porous biomass electrodes have emerged as a critical material for electrocatalytic hydrogen evolution reaction(HER).However,most approaches for synthesizing porous electrodes from biomass require high energy consumption,which is resulted from the smash of biomass and the undergoing of serial assembly.Herein,a self-supported wood-derived'breathable'membrane is utilized directly as electrodes for highefficient HER via an assembly of Fe-doped NiP alloys.The well-designed hierarchical porous structures in natural wood membrane(NWM)are unusually beneficial for electrolytes accessibility and hydrogen gas removal.The obtained wood-derived membrane exhibits a high electrocatalytic activity and good cycling durability in acidic and alkaline electrolytes.Remarkably,the Fe_(0.074) NiP alloys/NWM electrode affords a large current density of 100 m A cm^(-2) at extremely low overpotentials of 168 mV in acidic electrolyte and174 m V in alkaline electrolyte.Density functional theory calculations unveil that the Fe atom doped in NiP alloys can create much more charge accumulation around Fe and Ni active sites,which helps decrease the △GH_(*)and △G_(H2O)and significantly promote the HER process.This new insight will promote further explorations of economic,high-efficient,and biodegradable wood-derived electrocatalysts for HER. | Bin Hui Jian Li Yun Lu Kewei Zhang Hongjiao Chen Dongjiang Yang Liping Cai Zhenhua Huang | 2021 | Journal of Energy Chemistry2021，30，5： | 1 |
| 8 | The evolutionary complexity of complex adaptive supply networks: A simulation and case study显示文摘 | Gang Li Hongjiao Yang Linyan Sun Ping Ji Lei Feng | 2009 | International Journal of Production Economics2009，，2： | 1 |
| 9 | Donor-Acceptor Oligomers and Polymers Composed of Benzothiadiazole and 3-Hexylthiophene: Effect of Chain Length and Regioregularity显示文摘一系列施主领受人 oligomer OBTThn (n=17 ) 和由其他的 2,1,3-benzothiadiazole 和 3-hexylthiophene 组成的聚合物 PBTTh1 和 PBTTh2 在他们的基本性质和光电的性能上在链长度和方面链 regioregularity 的效果上为调查的目的被设计了并且综合。在 OBTThn oligomers 和 PBTTh1 聚合物,所有己基的方面向一样的方向在 thienyl 单位东方上锁住。在链长度的延伸之上,在答案的 intramolecular 费用转移(ICT ) 吸收乐队逐渐地从为到为 OBTTh7 的 505 nm 的 OBTTh1 的 398 nm 的 redshifts,然后到为 PBTTh1 的 512 nm 聚合物。同时, HOMO 精力水平从 5.45 eV ( OBTTh1 )增加到 5.08 eV ( OBTTh7 )和 5.09 eV ( PBTTh1 ),并且 LUMO 精力水平从 3.11 eV ( OBTTh1 )减少到 3.30 eV ( OBTTh7 )和 3.33 eV ( PBTTh1 ),因此为更高的 oligomers 和聚合物给一个越来越小的精力 bandgap 。理论计算为 oligomers 和聚合物的这个系列建议笔直地像线的脊梁几何学。在另一方面,聚合物 PBTTh2 拥有不同方面链 regioregularity,己基的方面锁住的每二位邻居在不同 orienting 方向在被安排。弯了像线的脊梁几何学理论上被建议。在答案,它作为 PBTTh1 显示出类似的 photophysical 和电气化学的性质。然而在电影说,它在是的 ICT 乐队显示更少 redshift 比 PBTTh1 在解决方案指那。在联合与[6,6 ]-phenyl-C61-butyric 酸甲基酉旨(PC61BM ) ,这些 oligomers 和聚合物被用作施主材料制作器官的体积异质接面太阳能电池。再次,锁住长度依赖者设备光电的性能被观察。当它分别地基于 OBTTh6 和 PBTTh1 为设备增加了到 0.36% 和 0.49% 时,设备基于 OBTTh4 显示出 0.16% 的力量变换效率。然而,自从设备基于 PBTTh2 显示了 0.52% 的效率,方面链 regioregularity 让更少在设备上影响光电的输出,比得上 PBTTh1 的。 | Jintu Wang Huaiying Ye Hongjiao Li Chongyu Mei Jun Ling Weishi Li Zhiquan Shen | 2013 | Chinese Journal of Chemistry2013，31，11： | 1 |
| 10 | Electrospun Flexible Nanofibres for Batteries:Design and Application显示文摘Flexible and free-standing electrospun nanofibres have been used as electrode materials in electrochemical energy storage systems due to their versatile properties,such as mechanical stability,superb electrical conductivity,and high functionality.In energy storage systems such as metal-ion,metal-air,and metal-sulphur batteries,electrospun nanofibres are vital for constructing flexible electrodes and substantially enhancing their electrochemical properties.The need for flexible batteries has increased with increasing demand for new products such as wearable and flexible devices,including smartwatches and flexible displays.Conventional batteries have several semirigid to rigid components that limit their expansion in the flexible device market.The creation of flexible and wearable batteries with greater mechanical flexibility,higher energy,and substantial power density is critical in meeting the demand for these new electronic items.The implementation of carbon and carbon-derived composites into flexible electrodes is required to realize this goal.It is essential to understand recent advances and the comprehensive foundation behind the synthesis and assembly of various flexible electrospun nanofibres.The design of nanofibres,including those comprising carbon,N-doped carbon,hierarchical,porous carbon,and metal/metal oxide carbon composites,will be explored.We will highlight the merits of electrospun carbon flexible electrodes by describing porosity,surface area,binder-free and free-standing electrode construction,cycling stability,and performance rate.Significant scientific progress has been achieved and logistical challenges have been met in promoting secondary battery usage;therefore,this review of flexible electrode materials will advance this easily used and sought-after technology.The challenges and prospects involved in the timely development of carbon nanofibre composite flexible electrodes and batteries will be addressed. | P.Robert Ilango A.Dennyson Savariraj Hongjiao Huang Linlin Li Guangzhi Hu Huaisheng Wang Xiaodong Hou Byung Chul Kim Seeram Ramakrishna Shengjie Peng | 2023 | Electrochemical Energy Reviews2023，6，1： | 1 |
| 11 | Measurements of the effective mass transfer areas for the gas–liquid rotating packed bed显示文摘Rotating packed bed(RPB) is one of the most effective gas–liquid mass transfer enhancement reactors, its effective specific mass transfer area(ae) is critical to understand the mass transfer process. By using the NaOH–CO_(2) chemical absorption method, the aevalues of three RPB reactors with different rotor sizes were measured under different operation conditions. The results showed that the high gravity factor and liquid flow rate were major affecting factors, while the gas flow rate exhibited minor influence.The radius of packing is the dominant equipment factor to affect aevalue. The results indicated that the contact area depends on the dispersion of the liquid phase, thus the centrifugal force of rotating packed bed greatly influenced the aevalue. Moreover, the measured ae/ap(effective specific mass transfer area/specific surface area of packing) values were fitted with dimensionless correlation formulas. The unified correlation formula with dimensionless bed size parameter can well predict the experimental data and the prediction errors were within 15%. | Wen Tian Junyi Ji Hongjiao Li Changjun Liu Lei Song Kui Ma Siyang Tang Shan Zhong Hairong Yue Bin Liang | 2023 | Chinese Journal of Chemical Engineering2023，55，3： | 0 |
| 12 | Spatio-temporal Evolution of the Agricultural Eco-efficiency Network and Its Multidimensional Proximity Analysis in China显示文摘As a traditional agricultural country,China has always prioritized agricultural development,and has increasingly focused on green and sustainable agricultural development.Based on the inter-provincial panel data for China from 1997 to 2019,this study divided these data into five periods according to the Five-Year Plan(FYP)of China,measured the agricultural eco-efficiency(AEE)values using the Super-SBM model,and then determined the spatial association network of the inter-provincial AEE of China using the improved gravity model.Finally,social network analysis(SNA)was used to further analyze the evolution process of AEE,and we de-veloped a framework of how multidimensional proximity,which includes geographical,economic,technological,cognitive,and institutional proximity,made an influence on the formation of AEE spatial relation network.The findings indicated that:1)in 1997−2019,the AEE in China was present in some spatial and temporal differences characteristics at the provincial scale,and we specifically found that national macro-regulation and policy incentives played a positive role in the long-term development of AEE.2)The spatial correlation of AEE development among provincial regions were becoming closer and exhibits obvious spatial correlation and spillover effects.The evolution of the AEE network has clearly observable trends of hierarchization and aggregation,and the complexity of the correlation network continues to increase and exhibits spatial clustering characteristics that are dense in the east and sparse in the west.The network structure has changed from monocentric radiation to a multicentric network,and network nodes select the more advantageous nodes with which to connect.3)Finally,the geographical proximity had a significant negative effect;the economic,technological,and institutional proximities were all observed to contribute to the AEE network formation,and cognitive proximity did not significantly influence this network formation. | QU Hongjiao YIN Yajing LI Junli XING Wenwen WANG Weiyin ZHOU Cheng ZHANG Yunhua | 2022 | Chinese Geographical Science2022，32，4： | 0 |
| 13 | Pollution characteristics of peroxyacetyl nitrate in karst areas in Southwest China显示文摘桂林是世界著名的地处喀斯特地区的旅游胜地,其光化学污染问题日益严重,过氧乙酰硝酸酯(PAN)被认为是光化学污染的可靠指标,也是本研究的重点.本研究于2021年10月首次观测了桂林的PAN的浓度为0.087-2.559ppb,同时探讨了PAN典型高值过程的成因.此次污染主要来源于东北方向污染气团的水平和高空输送,同时,高温,强辐射和低湿度等气象条件也促进了本地PAN的形成.本研究同时估算了桂林市的O3背景浓度为20.347ppb.这项研究为城市的光化学污染控制工作提供了理论基础。 | Songjun Guo Xu Wei Hongjiao Li Wen Qin Yijun Mu Jiongli Huang Chuan Nong Junchao Yang Dabiao Zhang Hua Lin Jingying Mao Zhaoyu Mo | 2024 | Atmospheric and Oceanic Science Letters2024，17，2： | 0 |
| 14 | Design and discovery of a highly potent ultralong-acting GLP-1 and glucagon co-agonist for attenuating renal fibrosis显示文摘The role of co-agonists of glucagon-like peptide-1 receptor(GLP-1R)and glucagon receptor(GCGR)in chronic kidney disease(CKD)remains unclear.Herein we found that GLP-1R and GCGR expression levels were lower in the kidneys of mice with CKD compared to healthy mice and were correlated with disease severity.Interestingly,GLP-1R or GCGR knockdown aggravated the progression of kidney injury in both diabetic db/db mice and non-diabetic mice undergoing unilateral ureteral obstruction(UUO).Based on the importance of GLP-1R and GCGR in CKD,we reported a novel monomeric peptide,1907-B,with dual-agonism on both GLP-1R and GCGR.The data confirmed that 1907-B had a longer half-life than long-acting semaglutide in rats or cynomolgus monkeys(~2-3 fold)and exhibited better therapeutic contribution to CKD than best-in-class monoagonists,semaglutide,or glucagon,in db/db mice and UUO mice.Various lock-of-function models,including selective pharmacological activation and genetic knockdown,confirmed that 1907-B’s effects on ameliorating diabetic nephropathy in db/db mice,as well as inhibiting kidney fibrosis in UUO mice,were mediated through GLP-1 and glucagon signaling.These findings highlight that 1907-B,a novel GLP-1R and GCGR co-agonist,exerts multifactorial improvement in kidney injuries and is an effective and promising therapeutic option for CKD treatment. | Qian Zhao Jiale Dong Han Liu Hui Chen Huan Yu Shuyin Ye Shuangjin Yu Yu Li Longhui Qiu Nazi Song Hongjiao Xu Qi Liu Zhiteng Luo Yuyi Li Rui Wang Guodong Chen Xianxing Jiang | 2024 | Acta Pharmaceutica Sinica B2024，14，3： | 0 |
| 15 | 急性髓系白血病致癌性RNA去甲基酶FTO的小分子靶向干预研究显示文摘文章简介RNA甲基化是高等生物mRNA上最普遍的修饰,参与RNA稳定性、定位、运输、剪切等调控,在基因表达调控中发挥重要作用。2011年FTO被鉴定为m^6A修饰去甲基化酶,开辟了'表观转录'研究新方向。2017年报导急性髓系白血病(AML)高表达FTO导致下游某些mRNA上甲基化丰度降低,引起蛋白水平变化,促进AML形成。然而由于缺乏高质量的小分子工具,FTO是否可以成为抗肿瘤药物的作用靶标有待于深入确证。 | 黄悦 Rui Su Yue Sheng Lei Dong Ze Dong Hongjiao Xu Tengfeng Ni Zijie Scott Zhang Tao Zhang Chenying Li Li Han Zhenyun Zhu Fulin Lian Jiangbo Wei Qiangqiang Deng Yungui Wang Mark Wunderlich Zhiwei Gao Guoyu Pan Dafang Zhong Hu Zhou Naixia Zhang Jianhua Gan Hualiang Jiang James C.Mulloy Zhijian Qian Jianjun Chen 杨财广 | 2020 | 科学新闻2020，，2： | 0 |
| 16 | Morphologies evolution and mechanical behaviors of SiC nanowires reinforced C/(PyC-SiC)_(n)multilayered matrix composites显示文摘SiC nanowires reinforced C/(PyC-SiC)_(n)multilayered matrix composites(SM-CS for short)were prepared by combined with sol-gel and chemical vapor infiltration(CVI)method.Firstly,(PyC-Si OC);multilayered structure was formed by cycles of impregnation and deposition.Then SiOC was transformed into SiC by heat-treatment,and(PyC-SiC)_(n)multilayered structure would be obtained.At the same time,the PyC layer which was designed as the outmost layer could decrease gas supersaturation to form in-situ tubular SiC nanowires on the surface of multilayered structure.The results of three-point bending test showed that the maximum force of SM-CS composites was increased by the number of cycles of the preparation process,which were up to enhanced by 74.38%compared with C/C composite materials.The fracture surface showed that the improvement was due to the multiscale reinforcing system of(PyC-SiC)_(n)multilayered structure and SiC nanowires.Multilayered structure can protect carbon fibers and release stress concentration by induction of cracks.And the mechanical interlocking effect of SiC nanowires could reinforce bonding force of the remaining matrix. | Xinfa Tian Hejun Li Xiaohong Shi Hongjiao Lin Ningning Yan Tao Feng | 2022 | Journal of Materials Science & Technology2022，，1： | 0 |
| 17 | Genome-Wide Analysis of the KANADI Gene Family and Its Expression Patterns under Different Nitrogen Concentrations Treatments in Populus trichocarpa显示文摘KANADI(KAN)is a plant-specific gene that controlled the polarity development of lateral organs.It mainly acted on the abaxial characteristics of plants to make the lateral organs asymmetrical.However,it had been less identified in woody plants.In this study,the members of the KAN gene family in Populus trichocarpa were identified and analyzed using the bioinformatics method.The results showed that a total of 8 KAN family members were screened out,and each member contained the unique GARP domain and conserved region of the family proteins.Phylogenetic analysis and their gene structures revealed that all KAN genes from P.trichocarpa,Arabidopsis thaliana,and Nicotiana benthamiana could be divided into four subgroups,while the eight genes in P.trichocarpa were classified into three subgroups,respectively.The analysis of tissue-specific expression indicated that PtKAN1 was highly expressed in young leaves,PtKAN6 was highly expressed in young leaves and mature leaves,PtKAN2,PtKAN5,and PtKAN7 were highly expressed in nodes and internodes,PtKAN8 was highly expressed in roots,and PtKAN3 and PtKAN4 showed low expression levels in all tissues.Among them,PtKAN2 and PtKAN6,and PtKAN4 and PtKAN5 might have functional redundancy.Under high nitrogen concentrations,PtKAN2 and PtKAN8 were highly expressed in mature stems and leaves,respectively,while PtKAN4,PtKAN5,and PtKAN7 were highly expressed in roots.This study laid a theoretical foundation for further study of the KAN genemediated nitrogen effect on root development. | Minghui Niu Heng Zhang Xiangyang Li Zhibao Hu Hongjiao Zhang Zhiru Xu Chunpu Qu Guanjun Liu | 2023 | Phyton-International Journal of Experimental Botany2023，92，7： | 0 |
| 18 | Effects of astronomical orbital cycle and volcanic activity on organic carbon accumulation during Late Ordovician–Early Silurian in the Upper Yangtze area, South China显示文摘Based on field outcrop data,the effects of cyclic change of astronomical orbit and volcanic activity on organic carbon accumulation during the Late Ordovician-Early Silurian in the Upper Yangtze area were studied using cyclostratigraphic and geochemical methods.d13 C and chemical index of alteration(CIA)were used to filter the astronomical orbit parameters recorded in sediments.It is found that the climate change driven by orbital cycle controls the fluctuations of sea level at different scales,obliquity forcing climate changes drive thermohaline circulation(THC)of the ocean,and THC-induced bottom currents transport nutrient-laden water from high latitude regions to the surface water of low-latitude area.Hence,THC is the main dynamic mechanism of organic-carbon supply.The marine productivity indexes of Ba/Al and Ni/Al indicate that volcanic activities had limited effect on marine productivity but had great influences on organic carbon preservation efficiency in late Hirnantian(E4).Paleo-ocean redox environmental indicators Th/U,V/Cr and V/(V+Ni)show that there is a significant correlation between volcanism and oxygen content in Paleo-ocean,so it is inferred that volcanisms controlled the organic carbon preservation efficiency by regulating oxygen content in Paleo-ocean,and the difference in volcanism intensity in different areas is an important factor for the differential preservation efficiency of organic carbon.The organic carbon input driven by orbital cycle and the preservation efficiency affected by volcanisms worked together to control the enrichment of organic carbon in the Middle–Upper Yangtze region. | ZHANG Xi ZHANG Tingshan ZHAO Xiaoming ZHU Haihua MIHAI Emilian Popa CHEN Lei YONG Jinjie XIAO Qiang LI Hongjiao | 2021 | Petroleum Exploration and Development2021，48，4： | 0 |
| 19 | Screening the Optimal Patterned Surfaces Consisting of Cell Morphology Mimicking Micro-pillars and Nanotube Arrays for the Design of Titanium Implants#br#显示文摘Micron/nano scale topographic modification has been a significant focus of interest in current titanium(Ti)surface design.However,the influence of micron/nano structured surface on cell or bacterium behavior on the Ti implant has rarely been systematically evaluated.Moreover,except for popular microgrooves,little work has been carried out on the reaction of cells to the bionic structure.In this study,several micro-pillars mimicking cell morphology were prepared on Ti surfaces by lithography and contact printing(ICP)method,and they were further decorated with nanotube arrays by anodization technology.These surface modifications remarkablly increased the surface roughness of pristine Ti surface from 91.17 nm±5.57 nm to be more than 1000 nm,and reduced their water contact angles from 68.3°±0.7°to be 16.9°±2.4°.Then,the effects of these hierarchical micron/nano scale patterns on the behaviors of MG63 osteoblasts,L929 fibroblasts,SCC epithelial cells and P.gingivalis were studied,aiming to evaluate their performance in osseointegration,gingival epithelial sealing and antibacterial ability.Through an innovative scoring strategy,our findings showed that square micro-pillars with 6μm width and 2μm height combined with 85 nm diameter nanotubes was suitable for implant neck design,while square micro-pillars with 3μm width and 3.6μm height combined with 55 nm diameter nanotubes was the best for implant body design.Our study reveals the synergistic effect of the hierarchical micron/nano scale patterns on MG63 osteoblasts,L929 fibroblasts,SCC epithelial cells and P.gingivalis functions.It provides insight into the design of biomedical implant surfaces. | Ping Zhou Hongjiao Li Feifei Mao Hongxin Huang Siqi Long Fei He Jing Chen Shicheng Wei | 2021 | Journal of Bionic Engineering2021，18，2： | 0 |
| 20 | Amorphous core/shell Ti-doped SnO_(2) with synergistically improved N_(2) adsorption/activation and electrical conductivity for electrochemical N_(2) reduction显示文摘Electrochemical nitrogen reduction reaction(NRR)has been considered as an appealing and sustainable method to produce ammonia from N_(2) under ambient conditions,attracting increasing interest.Limited by low solubility of N_(2) in water and high stability of Ntriple bondN triple bond,developing NRR electrocatalysts with both strong N_(2) adsorption/activation and high electrical conductivity remain challenging.Here,we demonstrate an efficient strategy to develop NRR electrocatalyst with synergistically enhanced N_(2) adsorption/activation and electrical conductivity by heteroatom doping.Combining computational and experimental study,the DFT-designed Ti-doped SnO_(2) exhibits significantly enhanced NRR performance with ammonia yield rate of 13.09µg h^(-1) mg^(-1) at −0.2 V vs.RHE.Particularly,the Faradaic efficiency reaches up to 42.6%,outperforming most of Sn-based electrocatalysts.The fundamental mechanism for improving NRR performance of SnO_(2) by Ti doping is also revealed.Our work highlights a powerful strategy for developing high-activity electrocatalysts for NRR and beyond. | Yu Yan Hongjiao Qu Xiaonan Zheng Kexin Zhao Xiaoxiao Li Yuan Yao Yang Liu | 2022 | Chinese Chemical Letters2022，33，10： | 0 |
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