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Antihyperglycemic effect of methanol extract of Tamarix aphylla L. Karst (Saltcedar) in streptozocin–nicotinamide induced diabetic rats
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作者 Rooh Ullah Shafiq Ahmed Tariq +3 位作者 Naeem Khan Nawaz Sharif Zia Ud Din Khalid Mansoor 《亚太热带生物医学杂志:英文版》 CAS 2017年第7期619-623,共5页
Objective: To evaluate the antihyperglycemic potential of Tamarix aphylla(T. aphylla)leaves in STZ–NIC induced diabetes in Wister Albino rats.Methods: Acute toxicity study was done to check the toxicity of T. aphylla... Objective: To evaluate the antihyperglycemic potential of Tamarix aphylla(T. aphylla)leaves in STZ–NIC induced diabetes in Wister Albino rats.Methods: Acute toxicity study was done to check the toxicity of T. aphylla(L. Karst)methanol extract. T. aphylla leaves extract was administered intraperitoneally(100 mg,250 mg and 400 mg/kg body weight per day) to diabetic Wister rats for 21 days. The various parameters were studied including fasting blood glucose levels, haemoglobin and glycosylated haemoglobin.Results: The treatment groups with the extract at three dose levels expressively abridged the intensities of blood glucose and Glycosylated Haemoglobin. The earlier detected reduced level of plasma haemoglobin of the diabetic rats was raised to near normalcy with treatment of extract.Conclusions: The results of the current study confirm that the leaves extract of T. aphylla are nontoxic and have antidiabetic nature. 展开更多
Role of nickel on vanadium poisoned FCC catalyst: A study of physiochemical properties 预览
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作者 U.J.Etim B.Xu +3 位作者 P.Bai Rooh Ullah F.Subhan Z.Yan 《能源化学:英文版》 SCIE EI CAS CSCD 2016年第4期667-676,共10页
Active sites of Fluid catalytic cracking(FCC) catalyst are poisoned during operation in the FCC reactor due to causes including feedstock contaminant metals deposition.This leads to activity,selectivity and increasi... Active sites of Fluid catalytic cracking(FCC) catalyst are poisoned during operation in the FCC reactor due to causes including feedstock contaminant metals deposition.This leads to activity,selectivity and increasing coking problems,thereby raising concern to the refiner.This work investigated effect of nickel coexisting with vanadium in the FCC feedstock on the standard FCC catalyst during cracking process,in which destruction of active sites occurs as a result of the metals deposition.Laboratory simulated equilibrium catalysts(E-cats) were studied by XRD,FTIR spectroscopy,N2 adsorption,solid state MAS-NMR,SEM and H2-TPR.Results revealed that vanadium,above a certain concentration in the catalyst,under hydrothermal conditions,is highly detrimental to the catalyst’s structure and activity.Conversely,nickel hardly affects the catalyst structure,but its co-presence in the catalyst reduces destructive effects of vanadium.The mechanism of nickel inhibition of vanadium poisoning of the catalyst is discussed. 展开更多
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毛线球状ZnO超结构在反应吸附脱硫中的优异性能
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作者 白鹏 刘博文 +3 位作者 吴萍萍 Rooh Ullah 邢伟 阎子峰 《中国科学:材料科学(英文版)》 CSCD 2017年第10期985-994,共10页
本文利用共聚物控制均匀沉淀法自组装合成了一种毛线球状ZnO超结构.通过将Ni浸渍于该氧化锌材料上制备了一系列Ni/ZnO吸附剂.其中,样品Ni/ZnO-4h在反应吸附脱硫中表现出极高的硫容量(189.1 mg Sg~(-1)),是相同条件下使用普通商业Zn... 本文利用共聚物控制均匀沉淀法自组装合成了一种毛线球状ZnO超结构.通过将Ni浸渍于该氧化锌材料上制备了一系列Ni/ZnO吸附剂.其中,样品Ni/ZnO-4h在反应吸附脱硫中表现出极高的硫容量(189.1 mg Sg~(-1)),是相同条件下使用普通商业ZnO制备的Ni/ZnO-C样品的6倍.毛线球状ZnO疏松开放的结构能够促进反应物/产物的扩散,并抑制体积膨胀对吸附剂结构的破坏.较小的ZnO颗粒在提供较高的硫容量的同时还能促进活性组分Ni的分散,从而导致吸附剂具有较高的反应吸附脱硫性能. 展开更多
关键词 吸附脱硫 脱硫性能 ZNO 超结构 反应物 球状 毛线 氧化锌材料
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