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Cobalt/nitrogen co-carved carbon nanorod for efficient Fenton-like reaction:Degradation efficacy,reaction mechanism and singlet oxygen generation

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Journal of Materials Science & Technology 2023年第6期137卷 67-78页

作者： Meng Li Ke Zheng Yu-Ting Jin Zhao-Xin Zhang Ji-Liang cheng Long-wei Huang Ce-Hui Mo Shao-Qi Zhou Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials College of Life Science and TechnologyJinan UniversityGuangzhou 510632China College of Environment and Energy Guangzhou Higher Education Mega CentreSouth China University of TechnologyGuangzhou 510006China Department of Chemical and Biological Engineering The Hong Kong University of Science and TechnologyClear Water BayKowloonHong Kong SARChina School of Civil Engineering and Transportation South China University of TechnologyGuangzhou 510640China Thrust of Sustainable Energy&Environment The Hong Kong University of Science and TechnologyGuangzhou 511458China College of Resources and Environmental Engineering Guizhou UniversityGuiyang 550025China

The Fenton-like process shows promising potential to generate reactive oxygen species for the reme-diation of increasingly environmental ***,the slow development of high-activity cata-lysts with strong stability and low leaching of metal ions has greatly inhibited scale-up application of this ***,cobalt(Co)/nitrogen(N)atom co-curved carbon nanorod(CoNC)containing highly uniform CoN_(x)active sites is developed as a Fenton-like catalyst for the effective catalytic oxidation of various organics via peroxymonosulfate(PMS)activation with high *** confirmed by the exper-imental results,singlet oxygen(^(1)O_(2))is the dominant active species for the degradation of the organ-ics,with a proportion of 100%.Furthermore,density functional theory calculations indicate that CoN_(2)C_(2)is the most effective ligand structure with more negative adsorption energy for PMS and the shortest length Co-O bond,while the most reasonable generation pathway for^(1)O_(2)was CoN_(2)C_(2)-PMS→CoN_(2)C_(2)-OH∗→2O∗→^(1)O_(2).Further studies demonstrate that the electron can be transferred from the highest occupied molecular orbitals of the organics to the lowest unoccupied molecular orbitals of the PMS via CoN_(2)C_(2)*** addition,the CoNC presents strong resistance to inorganic ions and natural organic matter in the Fenton-like catalysis *** presence of CoN_(2)C_(2)active centre can significantly shorten the migration distance of the^(1)O_(2)generated from PMS activation,which further enhances the Fenton-like catalytic activity in terms of mineralising various organic contaminants with high efficiency over a wide pH range.

关键词： Non-radical pathway Singlet oxygen Co/N co-carved carbon nanorod Fenton-like catalysis

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No synergism between bis(propyl)-cognitin and rasagiline on protecting dopaminergic neurons in Parkinson's disease mice

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Neural Regeneration Research 2016年第8期11卷 1339-1346页

作者： cheng-you Zheng Bao-jian Guo wei Cai wei Cui Shing-hung Mak Yu-qiang Wang Simon Ming-yuen Lee Yi-fan Han Zai-jun Zhang Institute of New Drug Research and Guangzhou Key Laboratory of Innovative Chemical Drug Research in Cardiocerebrovascular Diseases Jinan University College of Pharmacy School of Medicine Ningbo University Department of Applied Biology and Chemical Technology Institute of Modern Chinese MedicineThe Hong Kong Polytechnic University State Key Laboratory of Quality Research of Chinese Medicine and Institute of Chinese Medical Sciences University of Macao

Rasagiline,a monoamine oxidase-B inhibitor,and bis（propyl）-cognitin（B3C）,a novel dimer are reported to be ***,the synergistical neuroprotection produced by rasagiline and B3 C was investigated in 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine（MPTP）-induced mice of *** using neurobehavioural tests,high-performance liquid chromatography and western blot assay,we showed that B3 C at 0.3 mg/kg,rasagiline at 0.02 mg/kg,as well as co-treatment with B3 C and rasagiline prevented MPTP-induced behavioural abnormities,increased the concentrations of dopamine and its metabolites in the striatum,and up-regulated the expression of tyrosine hydroxylase in the substantia ***,the neuroprotective effects of co-treatment were not significantly improved when compared with those of B3 C or rasagiline ***,we have demonstrated that B3 C at 0.3 mg/kg and rasagline at 0.02 mg/kg could not produce synergistic neuroprotective effects.

关键词： nerve regeneration Parkinson's disease bis(propyl)-cognitin rasagiline monoamine oxidase B dopamine multitarget synergism neuroprotection neural regeneration

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Uniaxial tensile deformation behavior of a sandwich-like structural TiNb-NiTi composite for biomedical applications

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Rare Metals 2021年第12期40卷 3627-3634页

作者： Shun Guo wei Wang Bao-Guo Shen Li Tan Hai-Xia Liu Wen Ma Zhong-Min Xie Xiao-Nong cheng Ping Shi School of Materials Science and Engineering Jiangsu UniversityZhenjiang 212013China Zhenjiang Key Laboratory of UAV Application Technology Jiangsu Aviation Technical CollegeZhenjiang 212134China e-mail:shiping@***

The uniaxial tensile deformation behavior of a sandwich-like structural TiNb-NiTi composite was investigated by uniaxial tensile test and in situ high-energy synchrotron X-ray diffraction(SXRD).It is found that below 1.2%macroscopic strains,the elastic deformations of the B2,β,B19'andα"phases take place in the TiNbNiTi *** the subsequent loading,theβ→α"and B2→B19'stress-induced martensitic transformations(SIMTs)occur within the macroscopic strains of 0.5%-4.2%and the macroscopic strains of 0.7%-6.2%,*** the macroscopic strain of about 4.2%,the outer TiNb layer of the TiNb-NiTi composite experiences a partial fracture,as proved by the disappearance of(040)_(α")and a sudden jump in the(110)_(B19')d-spacing caused by load *** further uniaxial tensile deformation,the TiNbNiTi composite finally fractures at a strain of~6.2%.Our results might provide some valuable information for understanding the deformation behavior of novel sandwich-like structural shape memory composites in more depth.

关键词： TiNb-NiTi composite Uniaxial tensile deformation behavior Synchrotron X-ray diffraction(SXRD) Sandwich-like structure

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A new rat model of glaucoma induced by intracameral injection of silicone oil and electrocoagulation of limbal vessels

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Chinese Medical Journal 2011年第2期124卷 309-314页

作者： GUO Xue-qian TIAN Bei LIU Zhi-cheng wei Wen-bin TAO Yong SUN Shi-jie ZHANG Yu School of Biomedical Engineering Capital Medical University Beijing 100069 China Beijing Tongren Eye Center Beijing Tongren Hospital Capital Medical University Beijing Ophthalmol & Visual Science Key Lab Beijing 100730 China Department of Ophthalmology People's Hospital Peking University Beijing 100044 China

Background A satisfied glaucoma model is absent *** aim of this study was to evaluate the effect of a combination of intracameral injection of silicone oil and electrocoagulation of corneal limbal vessels and episcleral veins in the rats to establish glaucoma *** Operation was performed in each of the left eyes of 90 adult male *** eyes were used as *** of intraocular pressure （IOP） was performed with an applanation tonometer （Tong-Pen）.Retinal ganglion cells （RGCs） were retrogradely labeled by applying FluoroGold onto the bilateral superior *** During the follow-up （24 weeks）,the lOP of the study eyes was significantly higher （P〈0.05） than the control eyes （at final examination,IOP of control eyes was （13.4±1.0） mmHg and lOP of study eyes was （16.1±1.8） mmHg）.Correspondingly,at 24 weeks after operation,the RGCs density of the study eyes （2286.11±290.45/mm^2） was significantly lower than the control eyes （2626.46±164.85/mm^2,P〈0.01）.In the operated eyes,histological examination showed excavation of optic disc and increased neuroglial cells in the optic nerve,reduced thickness of retina and diminution of retinal ganglion cells,and atrophy of ciliary body and ***,the anterior chamber angle of the operated eye remained *** A combination of intracameral injection of silicone oil and electrocoagulation of comeal limbal vessels and episcleral veins may establish a reliable glaucoma model for further research.

关键词： glaucoma rat retina silicone oil electrocoagulation corneal limbus

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Seamlessly Merging the Capacity of P into Sb at Same Voltage with Maintained Superior Cycle Stability and Low-temperature Performance for Li-ion Batteries

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Energy & Environmental Materials 2023年第2期6卷 195-201页

作者： Yaqing wei Jun He Jie Zhang Mingyang Ou Yanpeng Guo Jiajun Chen cheng Zeng Jia Xu Jiantao Han Tianyou Zhai Huiqiao Li State Key Laboratory of Materials Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and Technology(HUST)Wuhan 430074China State Key Laboratory of Marine Resource Utilization in South China Sea Hainan Provincial Key Laboratory of Research on Utilization of Si-Zr-Ti ResourcesCollege of Materials Science and EngineeringHainan UniversityHaikou 570228China Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Nankai UniversityTianjin 300071China

Among the alloying-type anodes,elemental Sb possesses the suitable yet safe plateau,simple lithiation pathway,small voltage polarization,high conductivity,and superior cycle ***,challenge is that its intrinsic capacity is rather low(660 mAh g^(-1)),<1/6 of ***,we propose a seamless integration strategy by merging the voltage and capacity of phosphorus and antimony into a solid solution ***,the enlistment of P is found greatly enlarge the capacity from 660 to 993 mAh g^(-1) for such Sb_(30)P_(30) solid solution,while maintaining a single and stable discharge plateau(~0.79 V)similar to elemental *** experimental characterizations including XPS,PDF,Raman,and EDS mapping reveal that in such a material the P and Sb atoms have interacted with each other to form a homogenous solid solution alloy,rather than a simple mixing of the two ***,the Sb_(30)P_(30) exhibits superior rate performances(807 mAh g^(-1) at 5000 mA g^(-1))and cyclability(821 mAh g^(-1) remained after 300 cycles).Furthermore,such Sb_(60-x)P_(x) alloys can even deliver 621 mAh g^(-1) at30℃,which can be served as the alternative anode materials for high-energy and low-temperature *** unique seamless integration strategy based on solid solution chemistry can be easily leveraged to manipulate the capacity of other electrode materials at similar voltage.

关键词： alloy anode antimony lithium-ion batteries low-temperature performance phosphorus

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Wnt5a participates in hepatic stellate cell activation observed by gene expression profile and functional assays

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World Journal of Gastroenterology 2012年第15期18卷 1745-1752页

作者： Wu-Jun Xiong Li-Juan Hu Yi-cheng Jian Li-Jing Wang Ming Jiang wei Li Yi He Department of Gastroenterology Shanghai East Hospital Affiliated to Tongji UniversityShanghai 200120China

AIM:To identify differentially expressed genes in quiescent and activated hepatic stellate cells(HSCs)and explore their ***:HSCs were isolated from the normal Sprague Dawley rats by in suit perfusion of collagenase and pronase and density Nycodenz gradient *** RNA and mRNA of quiescent HSCs,and cultureactivated HSCs were extracted,quantified and reversely transcripted into *** global gene expression profile was analyzed by microarray with Affymetrix rat *** expressed genes were annotated with Gene Ontology(GO)and analyzed with Kyoto encyclopedia of genes and genomes(KEGG)pathway using the Database for Annotation,Visualization and Integrated *** data were validated by quantitative real-time polymerase chain reaction(qRTPCR).The function of Wnt5a on human HSCs line LX-2 was assessed with lentivirus-mediated Wnt5a *** expression of Wnt5a in fibrotic liver of a carbon tetrachloride(CCl4)-induced fibrosis rat model was also analyzed with Western ***:Of the 28 700 genes represented on this chip,2566 genes displayed at least a 2-fold increase or decrease in expression at a P<0.01 level with a false discovery *** these,1396 genes were upregulated,while 1170 genes were downregulated in culture-activated *** differentially expressed transcripts were grouped into 545 GO based on biological process GO *** most enriched GO terms included response to wounding,wound healing,regulation of cell growth,vasculature development and actin cytoskeleton *** pathway analysis revealed that Wnt5a signaling pathway participated in the activation of ***5a was significantly increased in cultureactivated HSCs as compared with quiescent *** validated the microarray ***-mediated suppression of Wnt5a expression in activated LX-2 resulted in significantly impaired proliferation,downregulated expressions of typeⅠcollagen and transforming growth factor-β1.W

关键词： Hepatic stellate cells Wnt5a Microarray Bioinformatics analyses Liver fibrosis

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Silicon-on-Insulator Structure Fabricated by Electron Beam Evaporation of Si on Porous Si and Epitaxial Layer Transfer

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Chinese Physics Letters 2001年第5期18卷 662-664页

作者： LIU wei-Li DUO Xin-Zhong WANG Lian-wei ZHANG Miao SHEN Qin-Wo LIN cheng-Lu Paul K.Chu State Key Laboratory of Functional Materials for Informatics Shanghai Institute of MetallurgyChinese Academy of SciencesShanghai 200050 Department of Physics and Materials Science City University of Hong Kong83 Tat Chee AvenueKowloonHong Kong

Epitaxial monocrystalline Si was grown on porous silicon by ultra-high vacuum electron beam *** of reflection high energy electron diffraction,atomic force microscopy,cross-section transmission electron microscopy and Rutherford backscattering spectrometry and channeling(RBS/C)show a good quality of the epitaxial ***,silicon-on-insulator materials were successfully produced by bond and etch back of porous *** quality of the silicon on insulator samples was investigated by RBS/C and spreading resistance *** results show that both the crystalline quality and electrical quality are *** addition,the interface between the top Si layer and SiO2 buried layer is very sharp.

关键词： Epitaxial porous Electron

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Research on focal nodular hyperplasia with MSCT and postprocessing

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World Journal of Gastroenterology 2009年第38期15卷 4838-4843页

作者： Yuan-Jian Liu wei-Jun Fan Zhi-Dong Yuan Peng-cheng Liu Chun-Rong Wang wei-Qiang Yan Su-Mei Wang Jun-Hui Chen Zheng Liu Imaging Center Peking University Shenzhen HospitalShenzhen 518036 Guangdong Province China State Key Laboratory of Oncology in Southem China Imaging and Interventional Center Cancer Center Sun Yat-sen University Guangzhou 510060 Guangdong Province China

AIM： To investigate and evaluate the pathological features and diagnostic value of focal nodular hyperplasia （FNH） with multiection spiral computed tomography （MSCT） and postprocessing. METHODS： A total of 25 patients with FNH who had undergone MSCT and postprocessing were included in the investigation. All patients had been pathologically or clinically confirmed with FNH. A number of 75 cases of hepatic carcinomas, hemangiomas and adenomas were randomly selected at a same period for a comparative study. RESULTS： There was a single focus in 22 cases and multiple foci in 3 cases. On the plain scan, 17 lesions showed hypodensity, 7 isodensity and 4 hyperdensity （the case with fatty liver）. With contrast, 28 lesions were enhanced evenly or in the nodules in the arterial phase; 13 lesions still showed hyperdensity, 11 lesions isodensity and 4 lesions hypodensity in the parenchymatous phase; in the delayed phase only 5 lesions showed hyperdensity but 9 lesions showed isodensity or slight hypodensity and 14 lesions showed hypodensity. Twelve lesions of 28 had central asteroid scars. Thickened feeding arteries in postprocessing were seen in 24 lesions, and were integrated into the parenchymatous lesions with a gradual and smooth course. On the contrary, there were no artery penetrated into the lesion found in any of comparative hepatic tumors. CONCLUSION： Doctors could make a correct diagnosis and differentiation of FNH on evaluation of the characteristic appearance on MSCT with postprocessing,

关键词： Angiography Computer-assisted imageprocessing Focal nodular hyperplasia Liver diseases X-ray Computed tomography

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A leaf shape mutant provides insight into PINOID Serine/Threonine Kinase function in cucumber(Cucumis sativus L.)

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Journal of Integrative Plant Biology 2019年第9期61卷 1000-1014页

作者： Mengfei Song Feng cheng Jing Wang Qingzhen wei Wenyuan Fu Xiaqing Yu Ji Li Jinfeng Chen Qunfeng Lou State Key Laboratory of Crop Genetics and Germplasm Enhancement College of HorticultureNanjing Agricultural UniversityNanjing 210095China

Optimizing leaf shape is a major challenge in efforts to develop an ideal plant type. Cucumber leaf shapes are diverse;however, the molecular regulatory mechanisms underlying leaf shape formation are unknown. In this study, we obtained a round leaf mutant(rl) from an ethyl methanesulfonate-induced mutagenesis population. Genetic analysis revealed that a single recessive gene, rl, is responsible for this mutation. A modified Mut Map analysis combined linkage mapping identified a single nucleotide polymorphism within a candidate gene,Csa1 M537400, as the mutation underlying the ***1 M537400 encodes a PINOID kinase protein involved in auxin transport. Expression of Csa1 M537400 was significantly lower in the rl mutant than in wild type, and it displayed higher levels of IAA(indole-3-acetic acid) in several tissues. Treatment of wild-type plants with an auxin transport inhibitor induced the formation of round leaves,similar to those in the rl mutant. Altered expression patterns of several auxin-related genes in the rl mutant suggest that rl plays a key role in auxin biosynthesis,transport, and response in cucumber. These findings provide insight into the molecular mechanism underlying the regulation of auxin signaling pathways in cucumber,and will be valuable in the development of an ideal plant type.

关键词： red Cucumis sativus L Kinase function PINOID

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A rapid approach for isolating a single fungal spore from rice blast diseased leaves

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Journal of Integrative Agriculture 2019年第6期18卷 1415-1418页

作者： FEI Li-wang LU Wen-bo XU Xiao-zhou YAN Feng-cheng ZHANG Li-wei LIU Jin-tao BAI Yuan-jun LI Zhen-yu ZHAO Wen-sheng yang Jun PENG You-liang Key Laboratory of Pest Monitoring and Green Management Ministry of Agriculture and Rural Affairs/College of Plant ProtectionChina Agricultural UniversityBeijing 100193P.R.China Institute of Plant Protection Liaoning Academy of Agricultural SciencesShengyang 110161P.R.China Saline-Alkali Land Utilization and Research Institute Liaoning Academy of Agricultural SciencesPanjin 124010P.R.China

Single spore isolation is a fundamental approach in plant pathology and mycology to isolate and identify plant fungal pathogens from diseased ***,routine single spore isolation procedure is time-consuming and has a high risk of contamination by other *** this study,we developed a rapid approach for isolating a single spore of the fungal pathogen,Pyricularia oryzae,from rice blast diseased leaves in the paddy field with low potential of ***,rice blast leaves with single lesions were selected in the paddy field,and a single lesion was cut out and pressed and dragged gently across the surface of water ***,a germinated single spore with a barely visible piece of agar was cut out of water agar with a dissecting needle under a stereomicroscope at approximately 120-fold ***,the germinated single spore with water agar was transferred onto oatmeal tomato agar for growth and *** on our experience,a skilled technician or student can successfully isolate single spore from over 150 independent diseased samples with nearly no contaminations in a single working *** approach is also suitable for isolating single spore from other fungal disease samples that produce abundant aerial conidia.

关键词： Pyricularia oryzae single spore isolation rice blast field experiment

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