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| 1 | Correlating Fe source with Fe-N-C active site construction: Guidancefor rational design of high-performance ORR catalyst显示文摘Pyrolyzed Fe-N_X/C materials derived from Fe-doped ZIF-8 are recently emerged as promising alternatives to noble metal platinum-based catalysts towards oxygen reduction reaction(ORR) and elucidating the dependacne of Fe source on the active site structure and final ORR performance is highly desirbale for further development of these materials. Here, we designed and synthesized a series of Fe-N-C catalysts using ZIF-8 and various iron salts(Fe(acac)_3, FeCl_3, Fe(NO_3)_3) as precusors. We found that the iron precursors,mainly the molecular size, hydrolysis extent, do play a major role in determining the final morphology of Fe, namely forming the Fe-Nx coordination or Fe_3C nanoparticles, as well as the site density, therefore,significantly affecting the ORR activity. Among the three iron sources, Fe(acac)_3 is most advantageous to the preferential formation of single-atom Fe-Nx active sites and the derived catalyst demonstrated best ORR performance. | Liqin Gao Meiling Xiao Zhao Jin Changpeng Liu Jianbing Zhu Junjie Ge Wei Xing | 2018 | Journal of Energy Chemistry2018，27，6： | 4 |
| 2 | Frequency-domain diagonal extension imaging显示文摘The pixel size of a charge-coupled device(CCD)camera plays a major role in the image resolution,and the square pixels are attributed to the physical anisotropy of the sampling frequency.We synthesize the high sampling frequency directions from multiple frames acquired with different angles to enhance the resolution by 1.4×over conventional CCD orthogonal sampling.To directly demonstrate the improvement of frequency-domain diagonal extension(FDDE)microscopy,lens-free microscopy is used,as its resolution is dominantly determined by the pixel size.We demonstrate the resolution enhancement with a mouse skin histological specimen and a clinical blood smear sample.Further,FDDE is extended to lens-based photography with an ISO 12233 resolution target.This method paves a new way for enhancing the image resolution for a variety of imaging techniques in which the resolution is primarily limited by the sampling pixel size,for example,microscopy,photography,and spectroscopy. | Shan Jiang Meiling Guan Jiamin Wu Guocheng Fang Xinzhu Xu Dayong Jin Zhen Liu Kebin Shi Fan Bai Shu Wang Peng Xi | 2020 | Advanced Photonics2020，2，3： | 3 |
| 3 | Oxygen-vacancy-rich TiO_(2)enables highly active and durable water electrolysis of urchin-like RuO_(2)catalyst显示文摘The material innovation is prerequisite to accelerating sluggish oxygen evolution reaction(OER)kinetics,thus promoting the realization of hydrogen energy community.Herein,we develop an oxygen-vacancy-rich TiO_(2)supported RuO_(2)catalyst(RuO_(2)@r-TiO_(2))towards improved OER activity and stability.The oxygen vacancy on TiO_(2)not only supplies electrons to produce lower valence Ru,but also provides sufficient anchoring site for the deposition of RuO_(2)nanocrystal.Beyond that,it can generate strong electronic interaction between TiO_(2)and supported RuO_(2),and thereby tailors the intermediates’adsorption energy on the RuO_(2)surface.As a result,the derived RuO_(2)@r-TiO_(2)catalyst exhibits superior OER activity and stability with the overpotential of 211 mV at a current density of 10 mA cm^(−2)and negligible activity degradation after 6 h operation,outperforming the non-oxygen-vacancy counterpart(223.3 mV,12.75%activity loss)and RuO_(2)catalyst(234.6 mV,42.86%activity loss). | GAO HongMei XIAO MeiLing LI GuoQiang GAO LiQin MENG QingLei LUO ZhaoYan LUO ErGui LIU ChangPeng JIN Zhao GE JunJie XING Wei | 2022 | Science China(Technological Sciences)2022，65，10： | 3 |
| 4 | Vacuum carburization of 12Cr2Ni4A low carbon alloy steel with lanthanum and cerium ion implantation显示文摘As bearing parts, 12 Cr2 Ni4 A is expected to have high hardness and excellent fatigue strength, so carburizing is employed to improve the inherit properties of 12 Cr2 Ni4 A. However, the traditional carburizing is limited by poor microstructure distribution and low rate of carburizing. The rare earth ion implantation is known to help improving the properties of tribology, corrosion resistance and oxidation resistance of metal. In this article, the RE implantation is employed to assist the carburizing. Lanthanum and cerium ion implantations are initially used to assist 12 Cr2 Ni4 A low pressure vacuum carburization.The microstructure, content of retained austenite, hardness, thickness of layer and carbon diffusion were analyzed by optical microscopy(OM), scanning electron microscopy(SEM), X-ray diffraction(XRD) and Rockwell/Vickers hardness tester, respectively. It was shown that lanthanum and cerium implantations can improve structure of the vacuum carburizing layer, and enhance the uniformity of carbon element distribution on the carburized surface. Meanwhile the RE implantation plays a positive role in promoting the surface hardness and carburized rate. The lanthanum element has more significant effect on surface hardness and content of retained austenite than cerium element. The surface hardness of lanthanum element implanted layer was 62.9 HRC with 9.6% content of retained austenite, while the carburizing rate of cerium implanted layer increased by 12.4%. | Meiling Dong Xiufang Cui Yuhui Zhang Guo Jin Caiwen Yue Xin Zhao Zhaobing Cai Binshi Xu | 2017 | Journal of Rare Earths2017，35，11： | 3 |
| 5 | Hydrogen etching induced hierarchical meso/micro-pore structure with increased active density to boost ORR performance of Fe-N-C catalyst显示文摘Rational regulation on pore structure and active site density plays critical roles in enhancing the performance of Fe-N-C catalysts. As the microporous structure of the carbon substrate is generally regarded as the active site hosts, its hostility to electron/mass transfer could lead to the incomplete fulfillment of the catalytic activity. Besides, the formation of inactive metallic Fe particles during the conventional catalyst synthesis could also decrease the active site density and complicate the identification of real active site. Herein, we developed a facial hydrogen etching methodology to yield single site Fe-N-C catalysts featured with micro/mesoporous hierarchical structure. The hydrogen concentration in pyrolysis process was designated to effectively regulate the pore structure and active site density of the resulted catalysts.The optimized sample achieves excellent ORR catalytic performance with an ultralow H2O2 yield(1%)and superb stability over 10,000 cycles. Our finding provides new thoughts for the rational design of hierarchically porous carbon-based materials and highly promising non-precious metal ORR catalysts. | Liqin Gao Meiling Xiao Zhao Jin Changpeng Liu Junjie Ge Wei Xing | 2019 | Journal of Energy Chemistry2019，28，8： | 2 |
| 6 | Liquid chromatogra- phy-mass spectrometry method for determination of tetram- ethylpyrazine and its metabolite in dog plasma显示文摘 | PengWang Xin Jin Meiling Qi | 2004 | Journal of Chromatography B2004，，813： | 1 |
| 7 | Studies on photoprotective mechanism of desert plant Reaumuria soongorica under progressive soil drying显示文摘Reaumuria soongorica (pall.) Maxim, a perennial desert semi-shrub, is widely found in semi-arid areas of China. It shows strong tolerance to drought, high temperature and intense radiation in its natural habitat. In the present study, photoprotective mechanism of R. soongorica was investigated by analyzing diurnal variations of gas exchange and chlorophyll fluorecence parameters during progressive soil drying. The results show that leaf water potential of R. soongorica decreased when the soil water content dropped. Diurnal patterns of net photosynthetic rate (Pn) changed from 'two peaks' to 'one peak' under drought stress, and the leaf water use efficiency (WUE) increased under moderate drought and declined under severe drought. Pn , the primary maximum photochemical efficiency of PSII (Fv/Fm) and the quantum efficiency of non-cyclic electron transport of PSII (ΦPSII) decreased obviously at noon, and showed a photoinhibition phenomenon. But, the non-photochemical quenching of fluorescence (NPQ) soon reached its maximum in the day and then remained almost at the high level until 17:00, indicating that the xanthophylls cycle-dependent thermal energy dissipation played an important role. Diurnal variations of the original chlorophyll fluorescence (Fo) increased at first and then decreased. The increased value of F o under drought stress indicates that there was a reversible inactivation of PSII reaction center. These results indicate that the photoprotective mechanism in R. soongorica was the photoinhibition by using both the xanthophylls cycle-dependent thermal energy dissipation and the reversible inactivation of PSII reaction center under drought stress. | YuBing Liu MeiLing Liu HuiJuan Tan Jin Wang ShengHui Zhou | 2010 | Research in Cold and Arid Regions2010，2，3： | 1 |
| 8 | Therapeutic effect of human umbilical cord mesenchymal stem cells on neonatal rat hypoxic–ischemic encephalopathy显示文摘 | Xinhua Zhang Qinfen Zhang Wei Li Dekang Nie Weiwei Chen Chunxiang Xu Xin Yi Jinhong Shi Meiling Tian Jianbing Qin Guohua Jin Wenjuan Tu | 2014 | Journal of Neuroscience Research2014，，1： | 1 |
| 9 | Determination of the active metabolite of prulifloxacin in human plasma by liquid chromatography-tandem mass spectrometry显示文摘 | GUO Lixia QI Meiling JIN Xin | 2006 | J Chromatogr B Analyt Technol Biomed Life Sci2006，832，2： | 1 |
| 10 | Pulmona-lymphangioleiomyomatosis 显示文摘 | Jin Meiling Cai Yingyun Zhang Zhifeng | 2000 | Chin J Tuberc Respir Dis2000，23，6： | 1 |
| 11 | Anode modification by electrochemical oxidation: A new practical method to improve the performance of microbial fuel cells显示文摘 | Minghua Zhou Meiling Chi Hongyu Wang Tao Jin | 2011 | Biochemical Engineering Journal2011，，： | 1 |
| 12 | The denervated hippoeampus provides proper mieroenvironment for the survival and differentiation of neural progenitors 显示文摘 | Zhang Xinhua Jin Guohua Tian Meiling | 2007 | Neuroseienee2007，414，2： | 1 |
| 13 | Involvement of heme oxygenase-1 in neuroprotection by sanguinarine against glutamate- triggered apoptosis in HT22 neuronal cells显示文摘 | Park SY Jin Meiling Kim YH | 2014 | Environ Toxicol Pharmacol2014，38，3： | 1 |
| 14 | Immunoglobu-lin A nephropathy in horseshoe kidney: case reports and litera-ture review显示文摘 | Panpan Hu Meiling Jin Yuansheng Xie | 2014 | Nephrology2014，19，10： | 1 |
| 15 | Neurodegeneration-associated FUS is a novel regulator of circadian gene expression显示文摘Background:Circadian rhythms are oscillating physiological and behavioral changes governed by an internal molecular clock,and dysfunctions in circadian rhythms have been associated with ageing and various neurodegenerative diseases.However,the evidence directly connecting the neurodegeneration-associated proteins to circadian control at the molecular level remains sparse.Methods:Using meta-analysis,synchronized animals and cell lines,cells and tissues from FUS R521C knock-in rats,we examined the role of FUS in circadian gene expression regulation.Results:We found that FUS,an oscillating expressed nuclear protein implicated in the pathogenesis of amyotrophic lateral sclerosis(ALS)and frontotemporal dementia(FTD),exerted a novel feedback route to regulate circadian gene expression.Nr1d1-encoded core circadian protein REV-ERBαbound the Fus promoter and regulated the expression of Fus.Meanwhile,FUS was in the same complex as PER/CRY,and repressed the expression of E box-containing core circadian genes,such as Per2,by mediating the promoter occupancy of PSF-HDAC1.Remarkably,a common pathogenic mutant FUS(R521C)showed increased binding to PSF,and caused decreased expression of Per2.Conclusions:Therefore,we have demonstrated FUS as a modulator of circadian gene expression,and provided novel mechanistic insights into the mutual influence between circadian control and neurodegeneration-associated proteins. | Xin Jiang Tao Zhang Haifang Wang Tao Wang Meiling Qin Puhua Bao Ruiqi Wang Yuwei Liu Hung-Chun Chang Jun Yan Jin Xu | 2018 | Translational Neurodegeneration2018，7，1： | 1 |
| 16 | An overview of electrode materials in microbial fuel cells显示文摘 | Minghua Zhou Meiling Chi Jianmei Luo Huanhuan He Tao Jin | 2011 | Journal of Power Sources2011，196，： | 1 |
| 17 | Polarization modulation with optical lock-in detection reveals universal fluorescence anisotropy of subcellular structures in live cells显示文摘The orientation of fluorophores can reveal crucial information about the structure and dynamics of their associated subcellular organelles.Despite significant progress in super-resolution,fluorescence polarization microscopy remains limited to unique samples with relatively strong polarization modulation and not applicable to the weak polarization signals in samples due to the excessive background noise.Here we apply optical lock-in detection to amplify the weak polarization modulation with super-resolution.This novel technique,termed optical lock-in detection super-resolution dipole orientation mapping(OLID-SDOM),could achieve a maximum of 100 frames per second and rapid extraction of 2D orientation,and distinguish distance up to 50 nm,making it suitable for monitoring structural dynamics concerning orientation changes in vivo.OLID-SDOM was employed to explore the universal anisotropy of a large variety of GFP-tagged subcellular organelles,including mitochondria,lysosome,Golgi,endosome,etc.We found that OUF(Orientation Uniformity Factor)of OLID-SDOM can be specific for different subcellular organelles,indicating that the anisotropy was related to the function of the organelles,and OUF can potentially be an indicator to distinguish normal and abnormal cells(even cancer cells).Furthermore,dual-color super-resolution OLID-SDOM imaging of lysosomes and actins demonstrates its potential in studying dynamic molecular interactions.The subtle anisotropy changes of expanding and shrinking dendritic spines in live neurons were observed with real-time OLID-SDOM.Revealing previously unobservable fluorescence anisotropy in various samples and indicating their underlying dynamic molecular structural changes,OLID-SDOM expands the toolkit for live cell research. | Meiling Guan Miaoyan Wang Karl Zhanghao Xu Zhang Meiqi Li Wenhui Liu Jing Niu Xusan Yang Long Chen Zhenli Jing Micheal Q.Zhang Dayong Jin Peng Xi Juntao Gao | 2022 | Light(Science & Applications)2022，11，1： | 1 |
| 18 | Responses of three different ecotypes of reed ( Phragmites communis Trin.) to their natural habitats: Leaf surface micro-morphology, anatomy, chloroplast ultrastructure and physio-chemical characteristics显示文摘 | Yubing Liu Xinrong Li Meiling Liu Bo Cao Huijuan Tan Jin Wang Xiaojun Li | 2011 | Plant Physiology and Biochemistry2011，，： | 1 |
| 19 | A novel fluffy conductive polypyrrole nano-layer coated PLLA fibrous scaf- fold for nerve tissue engineering 显示文摘 | JIN Lin FENG Zhangqi ZHU Meiling | 2012 | J Biomed Nanotechnol2012，8，5： | 1 |
| 20 | Ezrin overexpression predicts the poor prognosis of Gastric adenocarcinoma 显示文摘 | JINGCHUN JIN TIEFENG JIN MEILING QUAN | 2012 | Diagnostic Pathology2012，7，： | 1 |
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