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9篇 您的检索式:作者名="Neama"
    题名 作者 年代 出处 被引量
1Adsorptive removal of iron and manganese ions from aqueous solutions with microporous chitosan/polyethylene glycol blend membrane显示文摘Microporous chitosan(CS) membranes were directly prepared by extraction of poly(ethylene glycol)(PEG) from CS/PEG blend membrane and were examined for iron and manganese ions removal from aqueous solutions.The different variables affecting the adsorption capacity of the membranes such as contact time,pH of the sorption medium,and initial metal ion concentration in the feed solution were investigated on a batch adsorption basis.The affinity of CS/PEG blend membrane to adsorb Fe(II) ions is higher than that of Mn(II) ions,with adsorption equilibrium achieved after 60 min for Fe(II) and Mn(II) ions.By increasing CS/PEG ratio in the blend membrane the adsorption capacity of metal ions increased.Among all parameters,pH has the most significant effect on the adsorption capacity,particularly in the range of 2.9-5.9.The increase in CS/PEG ratio was found to enhance the adsorption capacity of the membranes.The effects of initial concentration of metal ions on the extent of metal ions removal were investigated in detail.The experimental data were better fitted to Freundlich equation than Langmuir.In addition,it was found that the iron and manganese ions adsorbed on the membranes can be effectively desorbed in 0.1 mol/L HCl solution(up to 98% desorption efficiency) and the blend membranes can be reused almost without loss of the adsorption capacity for iron and manganese ions.Neama A.Reiad Omar E.Abdel Salam Ehab F.Abadir Farid A.Harraz 2012Journal of Environmental Sciences2012,24,8:7
2GREEN SYNTHESIS OF ANTIBACTERIAL CHITOSAN FILMS LOADED WITH SILVER NANOPARTICLES显示文摘An eco-friendly chemical reduction method was successfully used for the preparation of chitosan (CTS) composite films loaded with silver nanoparticles (AgNPs) by self assembly method using poly(ethylene glycol) as both reducing and stabilizing agent. UV-Vis spectra of the prepared chitosan loaded silver nanoparticles (CTSLAg) films reveal that full reduction of silver ions to silver nanoparticles takes place at 90 °C. The effect of reaction conditions on the silver nanoparticles formation was investigated using UV-Vis spectrophotometer. The morphology of the films was tested by scanning electron microscopy (SEM). The DSC curves showed that the CTSLAg film had a favorable compatibility and heat stability. AgNPs were confirmed by XRD and UV-Vis spectroscopy. The TEM findings revealed that the silver nanoparticles synthesized were spherical in shape with uniform dispersal, and by increasing CTS:PEG ratio larger silver nanoparticles could be obtained. The results of antibacterial study reveal that the prepared nanocomposite films exhibited potential inhibition.Neama A. Reiad Omar E. Abdel Salam Ehab F. Abadir Farid A. Harraz 2013Chinese Journal of Polymer Science2013,31,7:2
3Synthesis of soma new quinazolin - 4 - one derivatives and evaluatton of their antimicrobial and anti -inflammatory effects显示文摘Fathalla Omar Abd El - Fattah M Kassem Emad M M Ibrahem Neama M Kamel Mohsen M 2008Acta Polonlae Pharmaeeutiea- Drug Research2008,65,1:1
4A study of the removal characteristics of heavy metals from wastewater by low-cost adsorbents显示文摘Abdel Salam Omar E Reiad Neama A E1 Shafei Maha M 2011Journal of Advanced Research2011,,2:1
5Molecular characterization and partial cDNA cloning of facilitative glucose transporters expressed in human articular chondrocytes;stimulation of 2-deoxyglucose uptake by IGF-Ⅰ and elevated MMP-2 secretion by glucose deprivation显示文摘Richardson S Neama G Phillips T 0,,2:1
6一种基于变性高效液相色谱技术筛选单核苷酸多态性并估算基因频率的方法显示文摘选取生产性能具有明显差异的4个鸡品种(莱航鸡、隐性白洛克鸡、丝羽乌骨鸡和杏花鸡)为材料,利用变性高效液相色谱(DHPLC)技术检测鸡生长激素基因部分序列(518bp)的多态性,快速筛查到5个可能与生产性能相关的单核苷酸多态性(SNPs).根据DHPLC杂合谱型与测序基因型一一对应的关系,介绍了当所检测目的DNA片段中含有多个SNPs时基因频率估算的简单方法,比较估算的和PCR RFLP统计的基因频率,发现差异不显著,证明该估算方法有一定的可行性.杜红丽 方梅霞 聂庆华 雷明明 Adam Ishag NEAMA 张细权 2005华南农业大学学报2005,26,3:1
7Efficacy of different dexme- detomidine regimens in producing controlled hypotensive anesthesia during functional endoscopic sinus surgery 显示文摘Neama T Abel R Eman AF 2014Egyptian Journal of Anaesthesia2014,4,3:1
8Molecular characteri- zation and partial cDNA cloning of facilitative glucose trans- porters expressed in human articular chondrocytes; stimulation of 2-deoxyglucose uptake by IGF-I and elevated MMP-2 secretion by glucose deprivation 显示文摘Richardson S Neama G Phillips T 2003Osteoarthritis Cartilage2003,11,:1
9Effects of Potassium Dichromate on Distribution of Toxocara canis Larvae within Brain of Mice显示文摘Ayoub Abdulwahid Bazzaz Neama Ali Ahmad Noorhan Ali Chelebi 2015Journal of Environmental Science and Engineering(A)2015,4,4:0
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