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Metal-free phthalocyanine single crystal： Solvothermal synthesis and near-infrared electroluminescence

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Chinese Chemical Letters 2016年第5期27卷 764-768页

作者： Qing-Long Bai chun-Hua Zhang Juan-Juan Song Jing-Hai Liu yan-chun feng Li-Mei Duan Chuan-Hui Cheng Inner Mongolia Key Lab of Chemistry of Natural Products and Synthesis of Functional Molecules College of Chemistry and Chemical Engineering Inner Mongolia University for Nationalities Tongliao 028000 China School of Physics and Optoelectronics Technology Dalian University of Technology Dalian 116024 China

A metal-flee purple H2Pc single crystal was synthesized by a facile solvothermal method, and its solubility and near-infrared （NIR） optical properties were also investigated due to its potential applications as a light-emitting layer for OLEDs. The H2Pc single crystal is insoluble in 1-chlorine naphthalene and other organic solvents. It gives a wide absorption in the range from 620 nm to 679 nm and a wide emission in near 922 nm. As an active light-emitting layer, H2Pc was employed to fabricate electroluminescent （EL） devices with a structure of ITO/NPB （30 nm）/Alq3：H2Pc （30 nm）/BCP （20 nm）/ Alq3 （20 nm）/Al. The emission center is at 936 nm when the H2Pc doping concentration is 20 wt%. The doping concentration strongly governs the emission intensity. When doping concentration decreases from 10 wt% to 1 wt%, the emission intensity remarkably fades, and simultaneously the emission center undergoes a blue shift.

关键词： Solvothermal synthesis H2Pc single crystal Optical properties Near-infrared Electroluminescence

Mitochondrial proteomic analysis of ecdysterone protection against oxidative damage in human lens epithelial cells

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International Journal of Ophthalmology(English edition) 2014年第1期7卷 38-43页

作者： chun-yan feng Xiu-Rong Huang Ming-Xin Qi Song-Wen Tang Sheng Chen yan-Hong Hu Fa-Jie Ke Xin Wang Department of Ophthalmology Second Affiliated Peoples Hospital of Fujian University of Traditional Chinese Medicine Research Center of Pathophysiology Fujian University of Traditional Chinese Medicine Department of Laboratory Fujian University of Traditional Chinese Medicine subsidiary Rehabilitation Hospital

AIM: To investigate the protective effects of the natural medicinal monomer ecdysterone(ECR) with estrogenic activity against oxidative damage in human lens epithelial cells B3(HLE-B3) caused by hydrogen peroxide 21(H2 O2) and to pursue the possible mitochondrial proteomic regularity of the protective effects. · METHODS: HLE-B3 cells were treated with H2O2(300μmol/L),β-estuarial(E2; 10-8mol/L) and H2 O2,ECR(10-6mol/L) and H2 O2,or left untreated. Altered expression of all mitochondrial proteins was analyzed by protein array and surface-enhanced laser desorption ionization time of flight mass spectrometry(SELDI-TOF-MS). The mass/charge(M/Z) ratios of each peak were tested by the Kruskal-Wallis rank sum test,and the protein peak value of the M/Z ratio for each treatment by pair comparison was analyzed with the Nemenyi test. ·RESULTS: H2O2 up-regulated expression of two protein spots(with M/Z of 6 532 and 6 809). When E2 mitigated the oxidative damage,the expression of one protein spot(M/Z 6 532) was down-regulated. In contrast,ECR downregulated both of protein spots(M/Z 6 532 and 6 809). · CONCLUSION: ECR could effectively inhibite H2O2 induced oxidative damage in HLE-B3 cells. The protein spot at M/Z of 6 532 might be the target spot of ECR against oxidative damage induced by H2 O2.

关键词： ecdysterone mitochondrial proteomics lens epithelial cell senile cataract

Effects of Dendrobium candidum polysaccharides on microRNA-125b and mitogen-activated protein kinase signaling pathways in diabetic cataract rats

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Traditional Medicine Research 2021年第5期6卷 43-48页

作者： Zi-yang Chen Qian Lan Sheng Chen yan-Hong Hu Fa-Jie Ke Jun Hu chun-yan feng Ming-Xin Qi Xiu-Rong Huang Comprehensive Clinic of Fujian Academy of Chinese Medicine Fuzhou 350003China Fujian University of Traditional Chinese Medicine Fuzhou 350122China Department of Opthalmology The Second Affiliated Hospital of Fujian Traditional Chinese Medical UniversityFuzhou 350003China

Background:Diabetic cataract is a common complication and a lens disorder in ***,Dendrobium officinale polysaccharide(DOP)is found to alleviate diabetes ***,microRNA-125b and mitogen-activated protein kinase signaling pathways play significant roles in ***,the mechanism and the effect of DOP on diabetic cataract remains ***:Wistar male rats were randomly assigned to the control,model,and DOP *** was induced with ***,DOP was orally given for 12 *** Lens Opacities Classification System III was used to evaluate lens opacity by slit-lamp *** lens was then harvested for testing the mRNA expression of microRNA-125b,ERK1,ERK2,Raf and Ras using reverse transcription-polymerase chain *** protein expression of ERK1,ERK2,Raf,and Ras was detected using the Western blot *** targets of microRNA-125b were predicted in miRWalk *** targets were obtained from the Kyoto Encyclopedia of Genes and Genomes ***:The lens opacities of the rats in the control group were almost at ***,the majority of the lens opacities in the model group were C3 to C4 and N1 to N2,and were mostly at C1 to C2 and N0 to N1 in the DOP *** difference was statistically significant(P<0.05).Furthermore,the microRNA-125b expression in the model group is significantly higher compared with the control ***,the microRNA-125b expression in the DOP group is significantly decreased(all P<0.05).The mRNA expression of ERK1,ERK2,Raf,and Ras in the model groups were upregulated compared with those of the control ***,the ERK1 and Raf mRNA expressions of the DOP group were lower compared with the model group(all P<0.05).The protein expression of ERK1,Raf,and Ras in the model group was significantly increased compared with those of the control *** protein expression of ERK1,Raf,and Ras in the DOP group was significantly lower compared with

关键词： Dendrobium officinale polysaccharide microRNA-125b mitogen-activated protein kinase diabetic cataract

Inhibiting Effects of Achyranthes Bidentata Polysaccharide and Lycium Barbarum Polysaccharide on Nonenzyme Glycation in D-galactose Induced Mouse Aging Model

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Biomedical and Environmental Sciences 2003年第3期16卷 267-275页

作者： HONG-BIN DENG, DA-PENG CUI, JIAN-MING JIANG, yan-chun feng,NIAN-SHENG CAI, AND DIAN-DONG LIInstitute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China Institute of Medicinal Biotechnology Chinese Academy of Medical Sciences Peking Union Medical College Beijing 100050 China

Objective To investigate the inhibiting effects and mechanism of achyranthes bidentata polysaccharide (ABP) and lycium barbarum polysaccharide (LBP) on nonenzyme glycation in D-galactose induced mouse aging model. Methods Serum AGE levels were determined by AGE-ELISA, MTT method was used to determine lymphocyte proliferation, IL-2 activity was determined by a bioassay method. Spontaneous motor activity was used to detect mouse's neuromuscular movement, latency of step-through method was used to examine learning and memory abilities of mouse, colormetric assay was used to determine hydroxyproline concentration in mouse skin, pyrogallol autoxidation method was used to determine superoxide dismutase (SOD) activity of erythrocytes. Results Decreased levels of serum AGE, hydroxyproline concentration in mouse skin and spontaneous motor activity in D-galactose mouse aging model were detected after treated with ABP or LBP, while lymphocyte proliferation and IL-2 activity, learning and memory abilities, SOD activity of erythrocytes, were enhanced. Conclusions ABP and LBP could inhibit nonenzyme glycation in D-galactose induced mouse aging model in vivo and ABP has a better inhibiting effect than LBP.

关键词： Achyranthes bidentata polysaccharide(ABP) Lycium barbarum polysaccharide(LBP) D-galactose Nonenzyme glycation Aging

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从《周礼正义》点校本谈引文讫止的判断

语言研究 2015年第4期35卷 114-119页

作者：颜春峰杭州师范大学人文学院杭州311121

古籍标点时引文讫止的判断是一大难点,从《周礼正义》点校本的误判中归纳出如下要点,作为判断引文讫止的辅助:注疏须与经文关键词眼对应;疏解须与所据引文对应;知悉孙疏常用语;引某说仅有引文和注释却无论述,则其论述极可能误标在引号内... 详细信息

古籍标点时引文讫止的判断是一大难点,从《周礼正义》点校本的误判中归纳出如下要点,作为判断引文讫止的辅助:注疏须与经文关键词眼对应;疏解须与所据引文对应;知悉孙疏常用语;引某说仅有引文和注释却无论述,则其论述极可能误标在引号内外;引若干旧注为证,则不容其中一句为孙疏;疏文过短,与下文语义联系较紧,则下文很可能仍是疏文;叙述与所引不对应,则引号有误;区分郑司农、郑玄、杜子春注的界线;注意引文讫止的关键词("又"、"又云"、"又曰"表示承接;"是也"表示引证或肯定;"是"、"彼"、"此"、"若然"、"所"表示指代;"盖"、"则"、"然则"表示归纳或转折;"故"、"以"表示因果;"今"表示对比;"即"表示对等;"之等"、"之属"总束引文)。

关键词：孙诒让《周礼正义》

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《周礼正义》楚本、中华本误改辨正

复旦学报（社会科学版） 2014年第2期56卷 25-30页

作者：颜春峰汪少华杭州师范大学人文学院杭州311121 复旦大学出土文献与古文字研究中心上海200433

《周礼正义》楚本和中华本的误改主要表现为:不注意校释术语;不注意表述方式;不注意用字规则;不注意词义;不追究僻义;不注意孙氏之校;不注意所据版本;不据原书改正引文讹误;不核原书擅改引文;所据失实;引甲书而据乙书擅改;转引而据原书... 详细信息

《周礼正义》楚本和中华本的误改主要表现为:不注意校释术语;不注意表述方式;不注意用字规则;不注意词义;不追究僻义;不注意孙氏之校;不注意所据版本;不据原书改正引文讹误;不核原书擅改引文;所据失实;引甲书而据乙书擅改;转引而据原书回改;强求本句字面对应;误解所指。

关键词：《周礼正义》校勘楚本

Construction of universal calibration model for levofloxacin injections by fiber-optic transmittance-reflectance near-infrared spectroscopy

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Journal of Chinese Pharmaceutical Sciences 2012年第1期21卷 62-69页

作者： Shao-Rui Hou yan-chun feng Xue-Bo Zhang Chang-Qin Hu National Institutes for Food and Drug Control Beijing 100050China

The general strategy and method of constructing universal calibration model for levofioxacin injections by near-infrared spectroscopy have been investigated and discussed. Firstly, a constant-temperature homogeneous liquid calibration model for levofloxacin hydrochloride injections with the same composition but different active principal ingredient （API） content was established as the basic unit for universal model. Then, samples of levofloxacin hydrochloride injections containing propylene glycol or levofloxacin lactate injections were added to develop a primary constant-temperature liquid universal model. Temperature- amended final universal model was established to apply to samples under different temperatures. The final model was built from 61 calibration samples and 77 validation samples. The value of the root mean square error of cross validation （RMSECV） and coefficient of determination （r2） of leave-one-out cross-validation （LOOCV） were 0.792 and 0.9993, respectively, the root mean square error of prediction （RMSEP） of test set validation （TSV） was 0.87, and the average relative deviation was 1.44%. According to the ICH guidelines, the universal calibration model was evaluated. Based on the experimental statistical results, the recommended number of calibration samples for a constant-temperature homogeneous liquid quantitative model was no less than 15.

关键词： Near-infrared spectroscopy Liquid universal calibration model Levofloxacin injection Sampling by fiber-optic transmittance-reflectance mode

Effects of Nitrogen on Grain Yield,Nutritional and Processing Quality of Wheat for Different End Uses

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Agricultural Sciences in China 2003年第6期2卷 609-616页

作者： ZHU Xin-kai, GUO Wen-shan, ZHOU Jun-liang, HU Hong, ZHANG Ying, LI chun-yan, feng Chao-nian and PENG Yong-xin(Agricultural College of yangzhou University , yangzhou 225009 , P. R. China) Agricultural College of yangzhou University Yangzhou 225009 P. R. China

The effects of nitrogen on grain yield, nutritional quality and processing quality of wheat for different end uses were studied in yangzhou from 2000 to 2002. Increasing N application amount and/or the ratio of topdressing N after elongation stage could raise grain yield, protein content, wet gluten content, sedimentation, falling number, development time and stability time. To produce strong-gluten and medium-gluten wheat, the suitable ratio of basis : tillering : elongation : booting N fertilizer was 3:1:3:3or5:1:2:2 with 180 - 240 kg N ha-1. To produce weak-gluten wheat, the ratio of basis : tillering : elongation N fertilizer should be 7 : 1 : 2 with 180 kg N ha-1 and 240×104 ha-1 seedlings.

关键词： Winter wheat for different end uses Nitrogen Nutritional quality Processing quality Grain yield

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大环聚硅氧烷分子

高分子通报 2009年第2期 21-26页

作者：严逢春魏东炜天津大学石油化工技术开发中心天津300072

聚硅氧烷是一种重要的高分子材料,其优良的物理化学性能使其在化工、冶金、建筑等众多领域具有广泛的应用,由于缺少链端基,环状聚硅氧烷这种特殊的空间结构使其具有尤为特定的性质和应用性能。本文主要简述了环状聚硅氧烷相比一般线形... 详细信息

聚硅氧烷是一种重要的高分子材料,其优良的物理化学性能使其在化工、冶金、建筑等众多领域具有广泛的应用,由于缺少链端基,环状聚硅氧烷这种特殊的空间结构使其具有尤为特定的性质和应用性能。本文主要简述了环状聚硅氧烷相比一般线形聚硅氧烷所具有的本体、溶液和化学特性。因为聚二甲基硅氧烷是硅氧烷中最主要的一种,所以本文主要对大环聚二甲基硅氧烷的合成方法和基本性质进行了综述,并介绍了大环聚硅氧烷的应用方向,主要是在拓扑嵌入、形成索烃和聚轮烷等方面的应用。

关键词：聚硅氧烷大环聚合物聚二甲基硅氧烷