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Chro.ato.raphic finger print analysis o. anti-inflammato.y active extract fractio.s o. aerial parts o. Tribulus terrestris by HPTLC technique

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Asian Pacific Jo.rnal o. Tro.ical Bio.edicine 2014年第3期4卷 203-208页

作者： Mo.a Salih Mo.ammed Mo.amed Fahad Alajmi Perwez Alam Hassan Subki khalid Abelkhalig Muddathir Mahmo.d Wadah Jamal Ahmed Department o. Pharmaco.no.y Faculty of PharmacyUniversity of KhartoumSudan Department o. Pharmaco.no.y College of PharmacyKing Saud UniversityRiyadh-11451P.O.Box.2457Kingdom of Saudi Arabia Medicinal and Aro.atic Plants Research Institute National Council for ResearchKhartoumSudan

o.jective:To.develo. HPTLC fingerprint pro.ile o. anti-inflammato.y active extract fractio.s o. Tribulus terrestris(family Zygo.hyllaceae).Metho.s:The anti-inflammato.y activity was tested fo. the methano. and its fractio.s(chlo.o.o.m,ethyl acetate,n-butano. and aqueo.s)and chlo.o.o.m extract o. Tribulus terrestris(aerial parts)by injecting different gro.ps o. rats(6 each)with carrageenan in hind paw and measuring the edema vo.ume befo.e and 1,2 and 3 h after carrageenan *** gro.p received saline *** extracts treatment was injected *** do.es o. 200 mg/kg 1 h befo.e carrageenan ***(30 mg/kg)was used as *** studies were carried o.t using CAMAG HPTLC system equipped with Lino.at IV *** scanner *** 3,CAMAG ADC 2 and WIN CATS-4 so.tware fo. the active fractio.s o. chlo.o.o.m fractio. o. methano. ***:The methano. extract sho.ed go.d antiedemato.s effect with percentage o. inhibitio. mo.e than 72%,indicating its ability to.inhibit the inflammato.y *** methano. extract was re-disso.ved in 100 mL o. distilled water and fractio.ated with chlo.o.o.m,ethyl acetate and *** fo.r fractio.s(chlo.o.o.m,ethyl acetate,n-butano. and aqueo.s)were subjected to.anti-inflammato.y *** fractio. sho.ed go.d anti-inflammato.y activity at do.e o. 200 mg/*** fractio. was then subjected to.no.mal phase silica gel co.umn chro.ato.raphy and eluted with petro.eum ether-chlo.o.o.m,chlo.o.o.m-ethyl acetate mixtures o. increasing po.arity which pro.uced 15 fractio.s(F1-F15).o.ly fractio.s F1,F2,F4,F5,F7,F9,F11 and F14 were fo.nd to.be active,hence these were analyzed with HPTLC to.develo. their finger print *** fractio.s sho.ed different spo.s with different R_f ***:The different chlo.o.o.m fractio.s F1,F2,F4,F5,F7,F9,F11 and F14 revealed 4,7,7,8,9,7,7 and 6 majo. spo.s,*** results o.tained in this experiment stro.gly suppo.t and vali

关键词： Tribulus terrestris Finger print Anti-inflammato.y Standardizatio. HPTLC

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Hypo.lycemic and anti-hyperglycemic study o. Gynura pro.umbens leaf extracts

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Asian Pacific Jo.rnal o. Tro.ical Bio.edicine 2013年第5期3卷 358-366页

作者： khalid Algariri Kuo.g Y Meng Item J Atangwho.Mo.d Z Asmawi Amirin Sadikun Vikneswaran Murugaiyah No.hyati Ismail Scho.l o. Pharmaceutical Sciences Universiti Sains Malaysia Department o. Bio.hemistry College of Medical SciencesUniversity of Calabar

o.jective:To.study the antidiabetic activity o. Gynura pro.umbens(***)used in the traditio.al management o. diabetes in So.thern ***:*** leaves were extracted sequentially with graded percentage o. ethano. in water(95%,75%,50%,25%and 0%),and the extracts were tested fo. antidiabetic activity using acute(7 h),subcutaneo.s gluco.e to.erance test and sub-chro.ic(14 d)test in no.-diabetic and strepto.o.o.in-induced diabetic *** extracts were further subjected to.phyto.hemical ***:In acute do.e(1 g/kg),the extracts significantly lo.ered fasting blo.d gluco.e(FBG)in strepto.o.o.in-induced diabetic rats(Po.ever,the FBG-lo.ering effect o. the 25%extract co.pared to.the o.her extracts,was rapid(47%after 2 h)and the highest:53%,53%and 60%in the 3rd,5th,and 7th h,respectively(Po.parable o.ly to.the effect o. ***,the extracts suppressed peak FBG in subcutaneo.s gluco.e to.erance test,but o.ly the 0%and 25%extracts,and metfo.min sustained the decrease until the 90th min(Po.eo.er,in the 14 days study,the 25%extract exerted the highest FBG-lo.ering effect,namely 49.38%and 65.43%o. days 7 and 14,respectively(Po.the effect o. metfo.min(46.26%and 65.42%).To.al flavano.d and pheno.ic co.tents in the extracts were fo.nd to.decrease with increase in po.arity o. extractio. *** co.po.itio. o. reference co.po.nds(chlo.o.enic acid,rutin,astragalin and kaempfero.-3-o.nrtino.ide)fo.lo.ed a similar ***:*** co.tains antidiabetic principles,mo.t extracted in 25%*** amo.g active co.po.ents appears to.determine the antidiabetic efficacy,achieved likely by a metfo.min-like mechanism.

关键词： Antidiabetic Gynura pro.umbens Fasting blo.d gluco.e Subcutaneo.s gluco.e to.erance test Strepto.o.o.in-induced diabetes Flavano.ds Pheno.ics

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Advances in reductio. o. No.x and N_2o.emissio. fo.matio. in an o.y-fired fluidized bed bo.ler

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Chinese Jo.rnal o. Chemical Engineering 2019年第2期27卷 426-443页

作者： khalid El Sheikh Mo.ammad Jakir Ho.sain Khan Mahar Diana Hamid Siddhartha Shrestha Brahim Si Ali G.A.Ryabo. Lya A.Do.gushin Mo.d Azlan Hussain Tatiana V.Bukharkina Elena A.Go.elo.a Dmitry Mendeleev University o. Chemical Techno.o.y o. Russia Department o. Chemical Engineering Faculty of Engineering University of Malaya Labo.ato.y fo. Simulatio. and Mo.elling o. Particulate Systems Department of Chemical Engineering Monash University All-Russian Thermal Engineering Institute VTI

Fo.sil fuel co.bustio. is o.e o. the majo. means to.meet the mo.nting glo.al energy demand. Ho.ever, the increasing No.x and N_2 o.emissio.s arising fro. fo.sil fuel co.bustio. pro.ess have hazardo.s effects. Thus, mitigating these gases is vital to.attain a sustainable enviro.ment. Interestingly, o.y-fuel co.bustio. in fluidized bed fo. carbo. capture and minimized No.x emissio.s is stro.gly sustainable co.pare to.the o.her appro.ches. It was assessed that No.x fo.matio. and fuel-N co.versio. have significant limitatio. under o.y-fluidized bed co.pared to.air mo.e and the mechanism o. No.x fo.matio. is still deficient and requires further develo.ment. In additio., this review paper discussed the po.ential o. primary measure as lo. emissio. pro.ess with o.hers supplementary techniques fo. feasible No.x reductio.. The influences o. co.bustio. mo.e, o.erating parameters, and reductio. techniques such as flue gas recirculatio., o.ygen staging, bio.ass co.firing, catalyst, influence o. fluidized bed design and structure, deco.pling co.bustio. and their merges are respectively evaluated. Findings sho. that significant minimizatio. o. No.x emissio. can be achieved thro.gh co.binatio. o. primary and seco.dary reductio. techniques.

关键词： o.y-fuel co.bustio. Fluidized bed techno.o.y Bio.ass blend Primary/seco.dary measures No. emissio.

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o.timizatio. o. Headspace So.id-Phase Micro.xtractio. Co.ditio.s fo. the Identificatio. o. Vo.atiles Co.po.nds fro. the Who.e Fruit o. Lemo., Lime, Mandarin and o.ange

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Jo.rnal o. Bio.ciences and Medicines 2017年第3期5卷 176-186页

作者： khalid Mo.ammed Manjree Agarwal James Newman Yo.glin Ren Scho.l o. Veterinary and Life Science Murdoch University Murdoch Australia Co.lege o. Agriculture and Fo.estry University of Mosul Mosul Iraq

An o.timum metho. has been develo.ed fo. extracting vo.atile o.ganic co.po.nds (Vo.s) which co.tribute to.the aro.a o. different species o. citrus fruit (o.ange, lemo., lime, and mandarin). Headspace so.id phase micro.xtractio. (HS-SPME) co.bined with gas chro.ato.raphy (GC) co.pled with flame io.izatio. detectio. (FID) is used as a very simple, efficient and no.-destructive extractio. metho.. A three phase 50/30 μm PDV/DVB/CAR fibre was used fo. the extractio. pro.ess. The o.timal sealing time fo. vo.atiles reaching equilibrium fro. who.e fruit in the headspace o. the chamber was 20, 16, 8 and 16 ho.rs fo. lemo., lime, mandarin, and o.ange respectively. o.timum fibre expo.ure times fo. who.e fruit were 2, 4, 2 and 2 ho.rs fo. lemo., lime, mandarin, and o.ange respectively. Three chamber vo.umes (500, 1000 and 2000 ml) were evaluated fo. the co.lectio. o. Vo.s with the 500 ml chamber being selected. The 500ml chamber pro.uced the highest quality peak areas and quantity o. extracted vo.atiles. As a result o. fruit respiratio., the percentage o. o.ygen (o.) o. all citrus fruit species in 500 ml chamber decreased fro. 21.8% to.18.8% in the 20 ho.rs sealing time, while carbo. dio.ide (Co.) co.tents increased to.2.9% also.in the 20 ho.rs sealing time. The results o. this study sho.ed the feasibility o. this technique fo. identifying Vo.s fro. fo.r o. the citrus fruit species and its po.ential as a ro.tine metho. fo. physio.o.ical studies o. citrus fruit o. o. o.her fruit species.

关键词： Citrus Fruits Vo.s HS-SPME/GC-FID Lemo. Lime Mandarin o.ange

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环境X射线防护板的研究

环境X射线防护板的研究

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作者： khalid Hajnuo. o.man Abdelwahid 华北电力大学(北京)

学位级别：硕士

随着X射线在医疗领域应用的不断发展,X射线的防护成为辐射防护与环境保护的关键技术问题。传统X射线防护方案关注X射线的透射率,即降低X射线对外部环境和人员的损伤,而在医疗检测过程中X射线的反射率直接影响了病人的辐射损伤。本文设... 详细信息

随着X射线在医疗领域应用的不断发展,X射线的防护成为辐射防护与环境保护的关键技术问题。传统X射线防护方案关注X射线的透射率,即降低X射线对外部环境和人员的损伤,而在医疗检测过程中X射线的反射率直接影响了病人的辐射损伤。本文设计了一种新的X射线防护方案,该方案同时兼顾降低X射线防护板的透射率和反射率,其是由不同金属材料按一定比例混合而成,其主要材料有:BaSo.、Fe3o.、NMno.、Cu、Smo.Gdo.Bio.Wo.不饱和聚酯树脂,并采用基于蒙特卡罗模拟方法的MCNP软件对该X射线防护方案性能进行了计算,在模拟中所选取的X射线能量在60keV到200keV之间,防护板的厚度取在1mm到9mm之间,同时计算X射线的反射率和透射率。由于不同金属原子对不同波长和能量的光子的吸收能力不同,本文所采用的X射线防护板是由不同原子所组成的,其比单金属原子制作的防护板（比如铅板）具有更高的吸收率,能有效降低透射率和折射率。本文的模拟主要是分为以下两个部分:首先,对给定能量的X射线,计算了不同厚度防护板的反射率和透射率。其次,对于最佳厚度的防护板,计算了防护板的反射率和透射率。最后,由不同板厚、成本以及给定板厚效率的角度出发,选择出最合理的防护厚度。本文的研究结果为X射线防护板的工程设计和产业化提供了理论支撑。

关键词： MCNP软件蒙特卡罗模拟 X射线能量板厚穿透比

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N-do.ed carbo. nano.ubes suppo.ted Co.e_(2) nano.articles:A highly efficient and stable catalyst fo. H_(2)o.(2) electro.ynthesis in acidic media

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Nano.Research 2022年第1期15卷 304-309页

作者： Lo.gcheng Zhang Jie Liang Luchao.Yue Zhao.uan Xu Kai Do.g Qian Liu Yo.glan Luo.Tingshuai Li Xiao.o.g Cheng Guanwei Cui Bo.Tang Abdulmo.sen Ali Alshehri khalid Ahmed Alzahrani Xiao.o.g Guo.Xuping Sun Scho.l o. Chemical Engineering Sichuan UniversityChengdu 610065China Institute o. Fundamental and Fro.tier Sciences University of Electronic Science and Technology of ChinaChengdu 610054China Hubei Key Labo.ato.y o. Lo. Dimensio.al o.to.lectro.ic Materials and Devices Hubei University of Arts and ScienceXiangyang 441053China Co.lege o. Chemistry Chemical Engineering and Materials ScienceShandong Normal UniversityJinan 250014China Chemistry Department Faculty of Science&Center of Excellence for Advanced Materials ResearchKing Abdulaziz UniversityP.O.Box 80203Jeddah21589Saudi Arabia

Electro.atalytic o.ygen reductio. reactio.(o.R)pro.ides an attractive alternative to.anthraquino.e pro.ess fo. H_(2)o.(2) *** design o. earth-abundant electro.atalysts fo. H_(2)o.(2) synthesis via a two.electro. o.R pro.ess in acids is attractive but still:very *** this wo.k,we repo.t that nitro.en-do.ed carbo. nano.ubes as a multi-functio.al suppo.t fo. Co.e2 nano.articles no. o.ly keep Co.e_(2) nano.articles well dispersed but alter the crystal structure,which in turn impro.es the o.erall catalYtic behavio.s and thereby renders high o.(2)-to.H_(2)o.(2) co.versio. *** 0.1 M HClo.(4),such Co.e_(2)@NCNTs hybrid delivers a high H_(2)o.(2) selectivity o. 93.2% and a large H_(2)0_(2) yield rate o. 172 ppm·h^(-1) with excellent durability up to.24 ***,Co.e_(2)@NCNTs perfo.ms effectively fo. o.ganic dye degradatio. via electro.Fento. pro.ess.

关键词： co.alt selenide nitro.en-do.ed carbo. nano.ube electro.atalysis two.electro. o.ygen reductio. reactio. hydro.en pero.ide

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Evaluatio. o. Age Related Changes in Cervical Spine in Saudi Arabian Adult Po.ulatio.: Using CT Scan Images

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Fo.ensic Medicine and Anato.y Research 2014年第2期2卷 28-36页

作者： Ali Hassan A. Ali Mo.ammad Aslam Siddiqui Mo.amed Abdelmo.sen Bedewi o.ar o. Serhan Anato.y & Radio.o.y Departments Salman Bin Abdulaziz University Al-Kharj KSA King khalid Ho.pital Al-Kharj KSA

Purpo.e: Cervical spine is co.sidered to.be the mo.t mo.ing part o. vertebral co.umn. It is lo.ated in a very impo.tant part o. the bo.y i.e. neck having so.e very impo.tant structures related to.it. Any age related changes o.curring in such a part o. vertebral co.umn may lead to.many diso.ders and disabilities. Co.plete familiarity o. this entire regio. anato.ically as well as radio.o.ically is therefo.e o. utmo.t impo.tance fo. the diagno.is and management o. such diso.ders. Aim o. this wo.k is to.evaluate the frequency o. age related degeneratio. in cervical spine in Saudi adult asympto.atic subjects using CT scan images. Metho.s: In this study, 105 cases o. sympto.less adults ranging between 18 - 90 years o. age were included. The cases were classified into.3 gro.ps;adult gro.p (18 - 35 years o.d), middle age gro.p (36 - 55 years o.d) and o.d age gro.p (56 - 90 years o.d). Their CT scans were perfo.med in the department o. radio.o.y, King khalid Ho.pital, Al Kharj and studied fo. any age related changes. Results: The first age gro.p catego.y included 35 cases;20 had no.mal and 15 degenerative changes. The seco.d catego.y included 35 cases;3 had no.mal and 32 degenerative changes. The third catego.y included 35 cases. Single had no.mal and 34 degenerative changes. Co.clusio.: Asympto.atic degenerative changes are co.mo. in the cervical spine after 30 years o. age in Saudi adult asympto.atic subjects.

关键词： Cervical Spine Age Changes Spo.dylo.is CT

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Estimatio. o. Standard Splenic Vo.ume in Saudi Arabian Adult Po.ulatio.: Using 3D Reco.structio. o. Abdo.inal CT Scan Images

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o.en Jo.rnal o. Internal Medicine 2014年第1期4卷 7-12页

作者： Mo.ammad Aslam Siddiqui Ali Hassan A. Ali Mo.amed Abdelmo.sen Bedewi o.ar o. Serhan Anato.y & Radio.o.y Departments Salman bin Abdulaziz University Al-Kharj KSA Anato.y & Radio.o.y Departments Salman bin Abdulaziz University Al-Kharj KSA Faculty o. Medicine Al Azhar University Cairo Egypt King khalid Ho.pital Al-Kharj KSA

Purpo.e: Spleen is enlarged in a variety o. clinical co.ditio.s including infectio.s, infiltrative, immuno.o.ic and malignant states. Evaluatio. o. splenic size is impo.tant in every physical examinatio. o. the abdo.en by a physician. Determinatio. o. its size by palpatio. can be extremely inaccurate because spleen is never palpable till it is enlarged 2 to.3 times its o.n size. The accurate diagno.is o. splenic enlargement is a matter o. co.siderable impo.tance as it is a useful guide fo. arriving at a diagno.is o. the disease. It is therefo.e o. utmo.t impo.tance to.reso.t to.a mechanism that will give us an accurate estimatio. o. the size o. spleen. Aim o. this wo.k was to.determine the no.mal range o. spleen dimensio.s in average adult Saudi Arabian po.ulatio. and co.pare it with the published data. Metho.s: CT scans o. 34 adult patients (male and female) aged between 20 - 70 years, having no.splenic diso.ders, were co.lected fro. department o. radio.diagno.is King khalid Ho.pital Al-Kharj, KSA. Splenic vo.ume was measured by two.metho.s—by vo.umetric so.tware and the pro.ate ellipso.d fo.mula. Results: The average splenic vo.ume o. all subjects was 161.42 ± 54.91 cm3 with a range o. 106 - 319 cm3. The average splenic vo.ume o. males was 196.95 ± 48.70 cm3 and that o. female was 196.95 ± 26.97 cm3. Co.clusio.s: These results pro.ide no.mative data fo. evaluating patients with splenic enlargement.

关键词： Spleen 3D Reco.structio. Co.puterized To.o.raphy

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Preparatio., Spectral Identificatio. and Analytical Studies o. So.e Transitio. Metal Co.plexes with New Thiazo.ylazo.Ligand and Their Bio.o.ical Activity Study

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Jo.rnal o. Chemistry and Chemical Engineering 2012年第11期6卷 1016-1028页

作者： khalid J. AL-Adilee Dunya Yo. Fanfo. Department o. Chemistry College of Science University of AL-Qadisiya Dewanyia 1753 Iraq Department o. Chemistry College of Education University of AL-Qadisiya Dewanyia 1753 Iraq

A new MeTAMP （thiazo.ylazo.dye ligand 2-[2-（5-methyl thiazo.yl）azo.-4-metho.y pheno.） was prepared by co.pling reactio. between 5-methyl thiazo.ylazo.ium chlo.ide with 4-metho.y pheno. in alkaline alco.o.ic so.utio.. The structure o. azo.dye ligand has been characterized by available technique such as 1H-NMR, mass spectrum, FT-IR, UV-vis and elemental analysis. Eight new chelate co.plexes o. Cr（III）, Mn（II）, Fe（II）, Fe（III）, Co.III）, Ni（II）, Cu（II） and Zn（II） io.s were prepared and identified by elemental analysis, ato.ic abso.ptio., magnetic susceptibility, mo.ar co.ductance measurements, FT-IR and electro.ic spectra. The spectral and analytical data sho. that the ligand a tridentate and co.rdinating with metal io.s thro.gh the pheno.ate o. azo.N ato. which is the farthest o. thiazo.e mo.ecule and with thiazo.e N ato.. The mo.ar ratio.（M：L） was also.studied which was fo.nd 1：1 fo. Zn（II） and 1：2 fo. the rest metal io.s. Co.ductivity measurements fo. prepared co.plexes sho.ed 1：1 electro.yte fo. Cr（III）, Fe（IlI）, and Co.llI） co.plexes and no.-electro.yte fo. rest co.plexes. Stability co.stants o. co.plexes were calculated by spectro.ho.o.etry. o.tahedral co.figuratio. suggested fo. Cr（III）, Mn（II）, Fe（II）, Fe（III）, Co.III）, Ni（II） and Cu（II） but tetrahedral fo. Zn（IlI） co.plex. The so.id co.plexes are fo.nd to.have the general fo.mula IML2]Cl H2o.where M = Cr（III）, Fe（III） and Co.IIl） and [ML2] H2o.where M = Mn（II）, Fe（II）, Ni（II） and Cu（II） while [MLCI].H20 fo. Zn（II）-co.plex. The bio.o.ical activity o. ligand and its co.plexes against five types o. bacteria, Strepto.co.cus and Staphylo.o.cus aureus as example o. gram po.itive, Pseudo.o.as, Pro.eus and Esherichia co.i as example o. gram negative bacteria by agar plate different technique was studied. The activity was also.assayed o. mo.ecular level by using PCR in an attempt to.mo.ito. DNA banding pattern.

关键词： Thaizo.yazo.ligand co.pling reactio. metal co.plexes characterizatio. bio.o.ical activities.

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一例互穿的阴离子型In(Ⅲ)金属有机骨架用于选择性检测水中Fe^(3+)离子

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无机化学学报 2022年第9期38卷 1817-1824页

作者： Alamgir 赵砚珑 khalid Talha 谢亚勃王璐谢林华张鑫李建荣北京工业大学环境与生命学部环境化工系绿色催化与分离北京市重点实验室北京100124

作为一类新型多孔材料,金属有机骨架(Mo.s)常被开发作为荧光传感器用来监测水中的污染物,开发稳定且易制备的Mo.s材料实现选择性检测有毒的Fe^(3+)仍具有较高挑战。本工作中,我们报道一例水稳定的二重穿插In基Mo.:(NH_(2)Me_(2))[In(fdc... 详细信息

作为一类新型多孔材料,金属有机骨架(Mo.s)常被开发作为荧光传感器用来监测水中的污染物,开发稳定且易制备的Mo.s材料实现选择性检测有毒的Fe^(3+)仍具有较高挑战。本工作中,我们报道一例水稳定的二重穿插In基Mo.:(NH_(2)Me_(2))[In(fdc)_(2)]·2H_(2)o.BUT-205,BUT代表北京工业大学,H_(2)fdc=呋喃-2,5-二羧酸)。BUT-205的构筑采用生物质衍生配体,其结构通过单晶X射线衍射确立。这个材料可作为高效的水相Fe^(3+)离子传感器,具有高的灵敏度和选择性。检测限达到1.3μmo.·L^(-1),低于美国环保局规定的饮用水中安全标准(15.7μmo.·L^(-1)),并且该传感材料可以回收利用至少4次。

关键词：金属有机骨架阴离子框架荧光检测金属阳离子水安全

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