学科分类
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4 个结果
  • 简介:FGSwasisolatedandpurifiedfromlaminariajaponicabyenzymolysis,chromatographymethodsandsoon.ThehighbloodfatmodelwasestablishedbyfeedingmouseonhighfatfeedstuffComparedwithcontrolgroup,theconcentrationofHDL-C,theratioofHDL-C/TCincreased;whiletheconcentrationofTC,LDL-CandTGdecreasedinexperimentalgroups.Conclusion:FGSwasaneffectiveserumhipidregulatorandcanbedevelopedasmedicineandheahhfood.

  • 标签: 血液脂肪 胆甾醇 高血脂模型
  • 简介:很好相对结晶,高方面比率Mg-Al分层的双氢氧化物(LDH)被一起沉淀过程在水的答案并且进一步准备对器官的修改LDH(OLDH)含水面对表面活化剂。设置的结构和OLDH的高方面比率被X光检查衍射(XRD)和扫描电子显微镜学(SEM)验证。一系列poly(丙烯碳酸盐)(PPC)/OLDH有OLDH的不同内容的合成电影经由一个融化混合方法被准备。他们的生气的节形态学,煤气的障碍性质和张力的力量作为OLDH内容的功能被调查。SEM结果证明OLDH血小板很好在composites和面向的平行以内被驱散到合成的表飞机。煤气的障碍性质和张力的力量显然在OLDH的加入之上被提高。特别地,PPC/2%OLDH电影在所有合成电影之中展出最好的障碍性质。与纯PPC相比,氧渗透系数(OP)和水蒸汽渗透系数(WVP)被54%和17%与2%OLDH增加分别地减少。而且,PPC/2%OLDH的张力的力量比纯PPC与的高是83%仅仅小在裂缝延伸输。因此,PPC/OLDH合成电影在由于它的可被细菌破坏的性质,优异的氧和潮湿障碍特征包装材料显示出大潜在的申请。

  • 标签: 下线 服务 迁移
  • 简介:Poly(ethyleneglycolmonomethylether)methacrylate(PEGMM)wassynthesizedbymeansofthereactionofmethacrylylchloridewithsodiummonomethylpolyethyleneglycoxideandwascharacterizedbyFTIR,~1H-NMR,andultravioletspectrometries.Aseriesofpoly(vinylalcohol)-graft-PEGMM(PVA-g-PEGMM)andmethylmethacrylate-PEGMMcopolymer(PMMA-PEGMM)werepreparedandtestedforantithrombogenicityinvitro.TheresultsindicatethattheantithrombogenicityofthecopolymersbasicallyincreaseswiththeincreasingoftheDPofpolyoxyethylene(POE)chainandtendstoaplateauaftertheDParound114,i.e.thelongchainstructureofPOEisfavourabletotheantithrombogenicityofitscopolymers;moreover,theextentoftheimprovementofantithrombogenicityalsorelatestothePEGMMcontentofthecopolymersandthekindofthematrixthatthePOEchainsarelocatedon.Theseresultsareconsistentwiththeanticipationofthehypothesisofmaintainingproteinsnormalconformationsforbloodcompatiblebioraaterials.

  • 标签: Antithrombogenicity BLOOD compatible BIOMATERIALS macromonomer POLY
  • 简介:Anovelclassofsegmentedcopolymers,dimethyldiphenylpolysiloxane/poly(oxytetramethylene)-polyurea(PSPEU),wassynthesizedfromα,ω-bis(γ-aminopropyl)dimethyldiphenylpolysiloxane(APMPS),whichwaspreparedbymeansofbasicring-openingcopolymerizationofoctamethylcyclotetrasiloxane,hexaphenylcyclotrisiloxaneand1,3-bis(γ-aminopropyl)tetramethyldisiloxane.TherelationshipsbetweenthediphenylsiloxycontentsandthepropertiesofAPMPS,includingrefractiveindex,glasstransitiontemperature,solubilityparameteraswellasthermalstability,wereinvestigated;meanwhile,thethermalstability,dynamicmechanicalproperties,mechanicalproperiesaswellastheantithrombogenicityinvitroofthePSPEUwerealsorevealed.

  • 标签: Antithrombogenicity: BLOOD compatible BIOMATERIALS Segmented copolymers