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| 1 | Enhancement of Sensitivity for Determination of Phenols in Environmental Water Samples by Single-drop Liquid Phase Microextraction Using Ionic Liquid prior to HPLC显示文摘A single-drop liquid phase micro-extraction procedure using 1-butyl-3-methylimidazo- lium hexafluorophosphate ([C4MIM][PF6]) was demonstrated for the sensitive determination of four phenols in water samples. Under the optimized conditions, the linear range of proposed method was excellent in the range of 0.5-100 μg·L-1, the reproducibility (RSD, n=6) were in the range 5.4%-8.9% and detection limits (S/N=3) were 0.3, 0.3, 0.5 and 0.5 μg·L-1 for 2, 4-dichloro- phenol, 2-naphthol, 2-nitrophenol and 4-chlorophenol, respectively. The experimental results indicated that the effect of complex matrices natural water samples could be resolved with addition of sodium ethylene diamine tetracetate (EDTA) into the samples. Excellent spiked recoveries were achieved for these four phenols ranged from 86.2%-114.9 %. All these facts demonstrated that the proposed method with merits of low cost, simplicity and easy operating would be a competitive alternative procedure for the determination of such compounds at trace level. | Qing Xiang ZHOU Jun Ping XIAO Cun Ling YE Xin Ming WANG | 2006 | Chinese Chemical Letters2006，17，8： | 5 |
| 2 | Pirfenidone suppresses the abnormal activation of human Müller cells after platelet-derived growth factor-BB stimulation显示文摘AIM: To determine the effect of pirfenidone on the activated human Müller cells by platelet-derived growth factor-BB(PDGF-BB). METHODS: The primary human Müller cells were separated from retinal tissues and established the pathogenic model by stimulated with PDGF-BB. The Müller cells behaviour of normal group and the model group was measured by MTT assay, Trypan blue assay, cell migration assay, and collagen contraction assay. The expression of transforming growth factor(TGF)-β1,-β2, and pigment epithelium-derived factor(PEDF) was estimated with realtime polymerase chain reaction(PCR), Western blot and immunofluorescence analyses. RESULTS: A pathogenic/proliferative model of Müller cells was established by stimulating normal cultured Müller cells with 10 ng/mL PDGF-BB for 48 h. After treated with 0.2 and 0.3 mg/mL pirfenidone, the proliferation, migration and collagen contraction was statistically significantly depressed in the model group compared with the normal groups. The expression levels of TGF-β1 and TGF-β2 were significantly down-regulated, while the PEDF expression was significantly up-regulated after treated with 0.2 and 0.3 mg/mL pirfenidone in the model group. CONCLUSION: Pirfenidone effectively suppress the proliferation, migration and collagen contraction of the human Müller cells stimulated with PDGF-BB through down-regulation of TGF-β1/TGF-β2 and up-regulation of PEDF. | Yi-Jin Tao Qin Chen Li Wang Xiao Yang Qing Cun Wen-Yan Yang Hua Zhong | 2019 | International Journal of Ophthalmology(English edition)2019，12，7： | 4 |
| 3 | A new phenanthraquinone from the roots of Peucedanum praeruptorum显示文摘新混合物, 9,10-dihydrophenanthrinic 酸, 9,10-dione-3,4-methylenedioxy-8-methoxy (1 ) 从 Peucedanum praeruptorum Dunn 的根被孤立根据光谱证据。 | Cun Zhang Li Li Yong Qing Xiao Wen Li Xiao Jie Yin Guo Fang Tian Dong Dong Chen Yun Wang | 2010 | Chinese Chemical Letters2010，21，7： | 4 |
| 4 | Two new glycosides from the seeds of Cassia obtusifolia显示文摘二新 glycosides, nor-rubrofusarin-6-O-β -d-(6′-O-acetyl)glucopyranoside (1 ) 和 1-desmethylaurantio-obtusin-2-O-β -d-glucopyranoside (2 ) 从肉桂 obtusifolia 的种子被孤立,他们的结构被化学、光谱的证据建立。 | Cun Zhang Gui Liu Li Yong Qing Xiao Li Li Zhen Pang | 2009 | Chinese Chemical Letters2009，20，9： | 4 |
| 5 | Hepatitis C Virus Attachment Mediated by Apolipoprotein E Binding to Cell Surface Heparan Sulfate显示文摘 | Jieyun Jiang Wei Cun Xianfang Wu Qing Shi Hengli Tang Guangxiang Luo | 2012 | Journal of Virology2012，，13： | 4 |
| 6 | Characterization of gold nanoparticle bioconjugation by resonance light scattering correlation spectroscopy显示文摘金 nanoparticles (GNP ) 广泛地被用作探针,某些生物、生物医学的地里的 nanomaterials 谢谢到它的特殊物理、化学的性质。然而,在答案描绘 GNPs-bioconjugates 仍然是困难的,它极大地限制了 GNP 的进一步的 bioapplications。在这研究,我们为用散布关联光谱学(RLSCS ) 的回声光在答案描绘 GNPs-biomolecules 报导了一个单个粒子方法。有牛的浆液白朊(BSA ) 和修改 thiol 的 oligonucletides 的 GNP 的相互作用被调查。 | Xin Qiu Li Chuan Tang Chao Qing Dong Ji Cun Ren | 2010 | Chinese Chemical Letters2010，21，10： | 2 |
| 7 | A new trimeric furanocoumarin from Heracleum rapula显示文摘新 trimeric 线性类型的 furanocoumarin, rapultririn A (1 ) ,从 Heracleum rapula 的地下的部分被孤立。这新混合物的结构被 NMR 阐明, MS 分光镜的方法。 | Cun Zhang YuanYan Liu Yong Qing Xiao Li Li | 2009 | Chinese Chemical Letters2009，20，9： | 2 |
| 8 | Using capillary electrophoresis mobility shift assay to study the interaction of CdTe quantum dots with bovine serum albumin显示文摘在这个工作,毛状的电气泳动活动性移动试金(CEMSA ) 首先被采用与量点(QD ) 学习蛋白质的相互作用。在这研究,牛的浆液白朊(BSA ) 和 CdTe QD 被用作模型样品。我们观察到 BSA 轻易地被吸附到 CdTe QD 表面,和 QD 鈥揃S 建筑群被 1:1 stoichiometric 比率形成。2.17 卤的价值 0.27 脳 106 摩尔 ? 1 L ? 1 (在 25 掳 C ) 为协会,常数被 CEMSA 获得。 | Li Wen Shao Chao Qing Dong Xiang Yi Huang Ji Cun Ren | 2008 | Chinese Chemical Letters2008，19，6： | 2 |
| 9 | Henry Reaction in Aqueous Media: Chemoselective Addition of Aldehydes显示文摘The chemoselective addition of aldehydes in aquoues medium was obtained under mild condition using improved Henry reaction. | Cun Liu ZHOU, Yu Qing ZHOU, Zhi Yong WANG* Department of Chemistry, University of Science & Technology of China, Hefei 230026 | 2003 | Chinese Chemical Letters2003，14，4： | 2 |
| 10 | Measurement errors and correction of the UAT-2 ultrasonic anemometer显示文摘Two kinds of measurement errors have been observed in the recently developed UAT-2 ultrasonic anemometer.One is the flow distortion produced by a'blocking effect',and the other is the angle of attack caused by the vertical misalignment of the instrument.Here,we study these errors and discuss the possible correction methods.Via a wind tunnel experiment and numerical simulation,a 3D calibration matrix was developed to correct the'blocking effect'.In the field test,the angle of attack was detected by an inclinometer settled on the reference plane of the anemometer,and the instrumental misalignment or tilt was corrected by a coordinate transformation.The combined use of an inclinometer and the proposed correction method may help find a new approach for vertical velocity correction. | CHENG Xue Ling PENG Zhen HU Fei ZENG Qing Cun LUO Wei Dong ZHAO Yi Jun HONG Zhong Xiang | 2015 | Science China(Technological Sciences)2015，58，4： | 1 |
| 11 | Effect of nitric oxide on browning and lignification of peeled bamboo shoots显示文摘 | Yang Hu Qing Zhou Cun Shan Wu Feng Hua | 2010 | Postharvest Biology and Technology2010，57，： | 1 |
| 12 | Genetic variations of mTORC1 genes and risk of gastric cancer in an eastern chinese population显示文摘 | Jing He Meng‐Yun Wang Li‐Xin Qiu Mei‐Ling Zhu Ting‐Yan Shi Xiao‐Yan Zhou Meng‐Hong Sun Ya‐Jun Yang Jiu‐Cun Wang Li Jin Ya‐Nong Wang Jin Li Hong‐Ping Yu Qing‐Yi Wei | 2013 | Carcinog2013，，1： | 1 |
| 13 | Synthesis of 2-(N-formyl)-5-aryl/aryloxymethyl-1,3,4-thiadiazoles with potential bioactivity in PEG-400显示文摘An environmental benign procedure for synthesis of 2-(N-formyl)-5-aryl/aryloxymethyl-1,3,4-thiadiazoles has been developed by reaction of 2-amino-5-aryl/aryloxymethyl-1,3,4-thiadiazoles with formic acid in PEG-400.The key advantages of this protocol are the shorter reaction time,higher yields,lower cost,simple workup,and environment-friendly compared to conventional organic solvent reaction.The present method does not involve any hazardous organic solvent or catalyst. | Wang, Xi Cun Ding, Xiao Mei Wang, Sheng Qing Chen, Xue Fei Quan, Zheng Jun | 2010 | Chinese Chemical Letters2010，21，3： | 1 |
| 14 | Headspace Liquid-phase Microextraction Using Ion-ic Liquid as Extractant for the Preconcentration of Dichlorodiphenyltrichloroethane and Its Metabolitesat Trace Levels in Water Samples显示文摘 | Ye Cun ling Zhou Qing xiang Wang Xin ming | 2006 | Anal Chim Acta2006，572，2： | 1 |
| 15 | Expression of a cytotoxic cationic antibacterial peptide in Escherichia coli using two fusion partners显示文摘 | Yu Qing Chen Shuang Quan Zhang Bao Cun Li Wen Qiu Bo Jiao Jie Zhang Zhen Yu Diao | 2007 | Protein Expression and Purification2007，，2： | 1 |
| 16 | A new carbazole-based Schiff-base as fluorescent chemosensor for selective detection of Fe 3+ and Cu 2+显示文摘 | Lianlian Yang Weiju Zhu Min Fang Qing Zhang Cun Li | 2013 | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy2013，，： | 1 |
| 17 | Interaction of CdTe/CdS quantum dots with antibodies显示文摘在学习,我们观察到到抗体和 QDs 抗体的形成的 CdTe/CdS QD 的强壮的吸附结合。有导致激光的荧光察觉(CE-LIF ) 的毛状的电气泳动,荧光 spectrometry 和荧光关联光谱学(FCS ) 被用来描绘 QD 与抗体结合。我们发现 QDs 抗体在水的答案结合拥有的高荧光,小水动力学半径和好稳定性。 | Chen Shi Xiang Yi Huang Chao Qing Dong Hong Jin Chen Ji Cun Ren | 2009 | Chinese Chemical Letters2009，20，9： | 1 |
| 18 | Immunohistochemical study on endocrine-like tumor cells in colorectal carcinomas显示文摘ImmunohistochemicalstudyonendocrineliketumorcelsincolorectalcarcinomasWANGDaoCun,WANGLiDong,JIAYunYing,LIUYiQing,FENGCh... | WANG Dao Cun, WANG Li Dong, JIA Yun Ying, LIU Yi Qing, FENG Chang Wei, TANG Fu Ai, ZHOU Qi, LI Zhen Feng and CUI Guang Lin Department of Gastroenterology, the Second Affiliated Hospital, Henan Medical University, Zhengzhou 450003, China | 1997 | World Journal of Gastroenterology1997，3，3： | 1 |
| 19 | Effect of intraocular lens implantation on visual field in glaucoma and comorbid cataracts显示文摘AIM: To investigate the effects of intraocular lens(IOL) implantation on visual field(VF) in patients with glaucoma and comorbid cataracts(G&C) with different disease severities.METHODS: Totally 56 eyes of 50 patients with primary G&C were included. All patients were divided into three groups based on the severity of the VF defect: the mild, moderate, and severe stage. Phacoemulsification was performed for cataract removal combined with IOL implantation. Visual acuity(VA) and VF tests were performed for all enrolled patients, up to 3 mo after surgery. Changes in VF threshold and global VF index in various groups were also recorded before and after surgery. The mean light sensitivity(MS) values and the changes following surgery(DMS) were compared between the three groups. Advanced Glaucoma Intervention Study(AGIS) scoring was analyzed on all VF results for analysis of changes in VF before and after surgery.RESULTS: Following surgery, the MS values of the three groups of G&C increased significantly, while the AGIS scores decreased statistically in all groups. The DMS values for the three zones in moderate and severe stage but not mild stage were statistically different between zones. The DMS value was significantly higher in zone I than those in zone II and III(zone I>zone II>zone III;P<0.05). The DMS was significantly higher in zone I than that in zone III in moderate stage patients(zone I>zone II>zone III;P<0.01), while the DMS values in the severe stage patients was significantly higher in zone I than those in zone II and III(zone I>zone II>zone III;P<0.01). CONCLUSION: The mean VF sensitivity of glaucoma patients increased significantly after cataract removal and IOL implantation. Variations in the severity and distribution of characteristics of VF defects result in differences in postoperative VF improvements after cataract surgery. The magnitude of increase in VF sensitivity is associated with VF defect characteristic in glaucoma. | Can Zhao Qing Cun Yi-Jin Tao Wen-Yan Yang Hua Zhong Feng-Jie Li Sean Tighe Ying-Ting Zhu Ting Wang | 2020 | International Journal of Ophthalmology(English edition)2020，13，4： | 0 |
| 20 | Liquid Chromatography Detertmination of Amino Acids by Pre-Column Fluorescence Derivatization with Acridone-N-acetyl Chloride显示文摘A sensitive liquid chromatographic mcthod for the detection of andno acids with precolumn fluorescence derivatization with acridone-N-acetyl chloride has been developed. Andno acid derivatives were eluted in 4o ndn with good reproducibility. The reIative standard deviations (n=6) at an analytical concentration of 50 pmol are < 4%. The method described is also suitable for the analysis of andno acids in different biological samples. | Jin Mao YOU Xin Jun FAN Qing Yu OU Qing Cun ZHU (Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences 730000)(Department of Chemistry, Qufu Normal University, Qufu, Shandong 273165) | 1998 | Chinese Chemical Letters1998，9，7： | 0 |
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