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Chinese Chemical Letters 2018年第10期29卷 1533-1536页

作者： Weijian Luo Yiren zhang Yongyang Gong Qing Zhou yongming zhang Wangzhang Yuan Shanghai Key Lab of Electrical Insulation and Thermal Aging Shanghai Electrochemical Energy Devices Research CenterSchool of Chemistry and Chemical EngineeringShanghai Jiao Tong University

Pure organic luminogens with efficient room temperature phosphorescence（RTP） and remarkable mechanochromism are highly desired in view of their fundamental significance and technical applications. Herein, four twisted pure organic luminogens based on benzophenone and aromatic amines were synthesized and their photophysical properties were thoroughly investigated. They exhibit crystallization-induced phosphorescence（CIP）, giving bright fluorescence and phosphorescence dual emission in crystals. Upon grinding, they become amorphous and emit predominantly red-shifted fluorescence, demonstrating remarkable mechanochromism. Furthermore, three of them even demonstrate greatly enhanced emission upon grinding, which is rarely observed in twisted D-A structured luminogens.

关键词： Crystallization-induced phosphorescence Room temperature phosphorescence Mechanochromism Benzophenone Aromatic amines

Liver-specific deficiency of TMEM30A develops spontaneous hepatocellular carcinoma

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Gastroenterology Report 2023年第1期11卷 536-538页

作者： Leiming Liu Zhiqing Xia yongming zhang Jingjing Su Leimin Sun Lingling zhang International Institutes of Medicine The Fourth Affiliated HospitalZhejiang University School of MedicineYiwuZhejiangP.R.China Laboratory of Applied Pharmacology and Department of Pharmacology College of PharmacyWeifang Medical UniversityWeifangShandongP.R.China Department of Gastroenterology Sir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouZhejiangP.R.China

Introduction Hepatocellular carcinoma is the third leading cause of cancer deaths worldwide and mainly originates from chronic liver diseases[1].It is essential to establish a stable and effective model for studying hepatocellular *** present,chemical induction is the most common method to establish liver cancer models in mice,in which diethylnitrosamine(DEN)and carbon tetrachloride(CCl4)are the main inducers[2].It simulates well the natural formation process of liver cancer,but the induction time is *** primary liver cancer organoids retain livertissue function and genetic stability[3].

关键词： hepatocellular cancer diseases

Lithium Isotope Evidence for the Source of Potassium-Rich Brine Solutes in the Jiangling Depression of Central China

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Acta Geologica Sinica(English Edition) 2017年第1期91卷 363-364页

作者： WANG Licheng LIU Chenglin WANG Chunlian XU Haiming zhang yongming MLR Key Laboratory of Metallogeny and Mineral Assessment Institute of Mineral ResourcesChinese Academy of Geological Sciences Qinghai Institute of Salt Lakes Chinese Academy of Sciences

Objective High-temperature and high-pressure brines have been discovered in the Jiangling Depression west of the Jianghan Basin,which contain K,Li,Rb and Cs of high economic *** now,little attention has been paid to t... 详细信息

关键词： LITHIUM isotopes ANALYTICAL geochemistry GEOTHERMAL brines POTASSIUM INDUCTIVELY coupled plasma mass spectrometry

Competition for electrons between reductive dechlorination and denitrification

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Frontiers of Environmental Science & Engineering 2017年第6期11卷 129-138页

作者： Lifeng Cao Weihua Sun Yuting zhang Shimin Feng Jinyun Dong yongming zhang Bruce E. Rittmann Department of Environmental Science and Engineering College of Life and Environmental Science Shanghai Normal University Shanghai 200234 China Biodesign Swette Center for Environmental Biotechnology Arizona State University Tempe AZ 85287-5701 USA

It is common that 2,4,6-trichlorophenol （TCP） coexists with nitrate or nitrite in industrial wastewaters. In this work, simultaneous reductive dechlorination of TCP and denitrification of nitrate or nitrite competed for electron donor, which led to their mutual inhibition. All inhibitions could be relieved to a certain degree by augmenting an organic electron donor, but the impact of the added electron donor was strongest for TCP. For simultaneous reduction ofTCP together with nitrate, TCP＇s removal rate value increased 75% and 150%, respectively, when added glucose was increased from 0.4 mmol· L^-1 to 0.5 mmol· L^-1 and to 0.76 mmol· L^-1 For comparison, the removal rate for nitrate increased by only 25% and 114% for the same added glucose. The relationship between their initial biodegradation rates versus their initial concentrations could be represented well with the Monod model, which quantified their half-maximum-rate concentration （Ks value）, and Ks values for TCP, nitrate, and nitrite were larger with simultaneous reduction than independent reduction. The increases in Ks are further evidence that competition for the electron donor led to mutual inhibition. For bioremediation of wastewater containing TCP and oxidized nitrogen, both reduction reactions should proceed more rapidly if the oxidized nitrogen is nitrite instead of nitrate and if readily biodegradable electron acceptor is augmented.

关键词： Competition for electrons Denitrification Reductive dechlorination Bioremediation Nitrate 2 4 6-trichlorophenol

Preparation and Upconversion Luminescence of Nanocrystalline Gd_2O_3:Er^(3+),Yb^(3+)

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Journal of Wuhan University of Technology(Materials Science) 2008年第4期23卷 448-451页

作者： LI Yanhong HONG Guangyan zhang yongming DAI Caiyun DAI Shuping School of Material Science and Engineering Shenyang Institute of Chemical Technology Shenyang 110142 China Key Laboratory of Rare Earth Chemistry and Physics Chinese Academy of Sciences Changchun130022 China

Nanocrystalline Gd1.77Yb0.2Er0.03O3 samples were prepared by combustion and precipitation methods. Structures and upconversion luminescence properties of samples were studied. The results of XRD show that all samples are cubic structure, the average crystallite size could be calculated as 23 nm and 39 nm, respectively. The lattice constants were obtained. The FT-IR spectra were measured to investigate the vibrational feature of the samples. Upconversion luminescence spectra of samples under 980 nm laser excitation were investigated. The strong red emission of samples were observed, and attributed to 4F9/2→4I152 transitions of Er^3＋ ions, the emission intensity for sample synthesized by precipitation method is stronger compared to that of combustion method. The possible upconversion luminescence mechanisms in nanocrystalline Gd1.77Yb0.2Er0.03O3 were discussed.

关键词： nanocrystalline upconversion luminescence combustion and precipitation methods

Improved nitrogen removal in dual-contaminated surface water by photocatalysis

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Frontiers of Environmental Science & Engineering 2012年第3期6卷 428-436页

作者： yongming zhang Rong YAN Zhen ZOU Jiewei WANG Bruce E.RITTMANN Deparlxnent of Environmental Engineering College of Life and Environmental ScienceShanghai Normal UniversityShanghai 200234China Swette Center for Environmental Biotechnology Biodesign InstituteArizona State UniversityTempeAZ85287-5801USA

River waters in China have dual contamination by nutrients and recalcitrant organic compounds. In principle, the organic compotmds could be used to drive denitrification of nitrate, thus arresting eutrophication potential, if the recalcitrant organics could be made bioavailable. This study investigated the potential to make the recalcitrant organics bioavailable through photocatalysis. Batch denitrification tests in a biofilm reactor demonstrated that dual-contaminated river water was short of available electron donor, which resulted in low total nitrogen （TN） removal by denitrification. However, the denitrification rate was increased signifi- cantly by adding glucose or by making the organic matters of the river water more bioavailable through photocata- lysis. Photocatalysis for 15 min increased the Chemical Oxygen Demand （COD） of the river water from 53 to 84 mg. L-1 and led to a 4-fold increase in TN removal. The increase in TN removal gave the same effect as adding 92 mg.L 1 of glucose. During the photocatalysis experi- ments, the COD increased because photocatalysis trans- formed organic molecules from those that are resistant to dichromate oxidation in the COD test to those that can be oxidized by dichromate. This phenomenon was verified by testing photocatalysis of pyridine added to the river water. These findings point to the potential for N removal via denitrification after photocatalysis, and they also suggest that the rivers in China may be far more polluted than indicated by COD assays.

关键词： dual contamination eutrophication photocatalysis remediation surface water

Design of SERS nanoprobes for Raman imaging:materials, critical factors and architectures

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Acta Pharmaceutica Sinica B 2018年第3期8卷 381-389页

作者： Mingwang Li Yuanyuan Qiu Chenchen Fan Kai Cui yongming zhang Zeyu Xiao Department of Pharmacology and Chemical Biology Institute of Medical Sciences Shanghai Jiao Tong University School of Medicine Translational Medicine Collaborative Innovation Center Shanghai Jiao Tong University School of Medicine Collaborative Innovation Center of Systems Biomedicine Shanghai Jiao Tong University School of Medicine

Raman imaging yields high specificity and sensitivity when compared to other imaging modalities, mainly due to its fingerprint signature. However, intrinsic Raman signals are weak, thus limiting medical applications of Raman imaging. By adsorbing Raman molecules onto specific nanostructures such as noble metals, Raman signals can be significantly enhanced, termed surfaceenhanced Raman scattering(SERS). Recent years have witnessed great interest in the development of SERS nanoprobes for Raman imaging. Rationally designed SERS nanoprobes have greatly enhanced Raman signals by several orders of magnitude, thus showing great potential for biomedical *** this review we elaborate on recent progress in design strategies with emphasis on material properties,modifying factors, and structural parameters.

关键词： Raman imaging Surface-enhanced Raman scattering Nanoprobes Architecture Biomedical application Enhancement factors Nanoparticles

Occurrence and distribution of antibiotic resistance genes in the sediments of the East China Sea bays

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Journal of Environmental Sciences 2019年第7期31卷 156-167页

作者： Jiayu Chen Zhiguo Su Tianjiao Dai Bei Huang Qinglin Mu yongming zhang Donghui Wen School of Environmental and Geography Sciences Shanghai Normal University College of Environmental Sciences and Engineering Peking University Zhejiang Provincial Zhoushan Marine Ecological Environmental Monitoring Station

The coastal area of the East China Sea has experienced rapid urbanization and industrialization in China since 1980 s, resulting in severe pollution of its *** resistance genes(ARGs) are regarded as a kind of emerging pollutant with potential high risk. The sediment samples were collected from Hangzhou Bay(HB),Xiangshan Bay(XB), and Taizhou Bay(TB) to investigate the spatial occurrence and distribution of 27 ARGs and class I integron–integrase gene(intI1) in the coastal area of the East China Sea. The PCR results showed the frequent presence of 11 ARGs and intI1 in the sediments of the three bays. The qPCR results further showed that sulfonamide resistance was the most prevalent ARG type and antibiotic target replacement and protection were the most important resistance mechanisms in the sediments. Regarding the subtype of ARGs, sulI, tetW, and dfrA13 were the most abundant ARGs, in which sulI was higher in TB(based on both the absolute and relative abundances) and dfrA13 was higher in HB(based on the relative abundances). The network analysis revealed that intI1 had significant correlations with tetC, sulI, sulII, and blaPSE-1. Oil was the key connected factor, which had positive connections with sulI, sulII, and blaPSE-1. In addition, the joint effect of heavy metals and nutrients & organic pollutants might be crucial for the fate of ARGs in the coastal sediments.

关键词： Antibiotic resistance genes (ARGs) Class I integron–integrase gene(intI1) the East China Sea sediment

Coupled aerobic and anoxic biodegradation for quinoline and nitrogen removals

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Frontiers of Environmental Science & Engineering 2015年第4期9卷 738-744页

作者： Ning YAN Lu WANG Ling CHANG Cuiyi zhang Yang ZHOU yongming zhang Bruce E. RITTMANN Department of Environmental Science and Engineering College of Life and Environmental Science Shanghai Normal University Shanghai 200234 China Swette Center for Environmental Biotechnology Biodesign Institute Arizona State University Tempe AZ 85287-5701 USA

Quinoline （C9H7N） commonly occurs in wastewaters from the chemical, pharmaceutical, and dyeing industries. As quinoline is biodegraded, nitrogen is released as ammonium. Total-N removal requires that the ammonium-N be nitrified and then denitrified. The objective of this study was to couple quinoline biodegradation with total-N removal. In a proof-of-concept step, activated sludge was sequenced from aerobic to anoxic stages. The ammonium nitrogen released from quinoline biodegradation in the aerobic stage was nitrified to nitrate in parallel. Anoxic biodegradation of the aerobic effluent then brought about nitrogen and COD removals through denitrification. Then, simultaneous quinoline biodegradation and total-N removal were demonstrated in a novel airlift internal loop biofilm reactor （AILBR） having aerobic and anoxic zones. Experimental results showed that the AILBR could achieve complete removal of quinoline, 91% COD removal, and 85% total-N removal when glucose added as a supplemental electron donor once nitrate was formed.

关键词： Quinoline biofilm reactor biodegradation,denitrification

Synthesis and luminescence properties of nanocrystalline Gd_3Ga_5O_(12):Eu^(3+) by a homogeneous precipitation method

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Rare Metals 2012年第6期31卷 599-603页

作者： Li Yanhong Lu Haiyan zhang yongming Ma Jing Song Guoyi Shenyang Univ Chem Technol Sch Mat Sci & Engn Shenyang 110142 Peoples R China

Nanocrystalline Gd3Ga5O12:Eu3+ with cubic phase was prepared by a urea homogeneous precipitation method. X-ray diffraction (XRD), field emission scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), thermo-gravimetric and differential thermal analysis (TG-DTA) and photoluminescence spectra were used to characterize the samples. The effects of the initial solution pH value and urea content on the structure of the sample were studied. The XRD results show that pure phase Gd3Ga5O12 can be obtained at pH =6 and pH =8 of the initial solution. The average crystallite size can be calculated as in the range of 24~33 nm. The average crystallite size decreases with increasing molar ratio of urea to metal ion. The results of excitation spectra and emission spectra show that the emission peaks are ascribed to 5D0→7FJ transitions of Eu3+, and the magnetic dipole transition originated from 5D0 →7F1 of Eu3+ is the strongest; the broad excitation bands belong to change transfer band of Eu?O and the host absorption of Gd3Ga5O12. An efficient energy transfer occurs from Gd3+ to Eu3+.

关键词： Gd3Ga5O12:Eu3+ nanocrystal urea homogeneous precipitation method luminescence