学科分类
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14 个结果
  • 简介:Hepatoma房间(Hepg2s)在氢氧根上有教养的同样典型的癌症房间(哦)并且甲基(CH3)组表面被显示展出不同增长和词法变化。Hepg2s房间在上哦表面在CH3表面上比那些更快成长了。Hepg2s房间在上哦表面有更大的接触区域和更多的弄平的形态学,当那些在CH3表面上展出了更小的接触时,区域和更多绕行形态学。在7天文化以后,进CH3表面上的簇的Hepg2s房间的迁居在OH表面上比那慢显著地表现了。这些化学上修改的表面在增长,粘附,和移植上展出了Hepg2s房间的规定,提供肝癌症的潜在的治疗。

  • 标签: 表面化学 细胞增殖 肝癌细胞 微控制 接触面积 细胞迁移
  • 简介:Chitosan/,-glycerophosphate(CS/,-GP)当周围的温度增加了时,thermo敏感的hydrogels在低温度和半固体hydrogel介绍了可流动的答案状态。在这研究,metronidazole的不同集中包含了,CS并且,象不同的酸溶剂一样的-GP,,被选择从CS/在药版本行为上评估他们的影响,-GPhydrogels。在一个高原跟随的开始的3h期间有一个支撑的版本,这被发现。SEM图象证明药表面位于并且在hydrogels的内部。为药版本的这hydrogel的最佳的准备条件如下:1.8%(w/v)在HAc溶剂的CS,5.6%(w/v),-GP和5g/Lmetronidazole封装。Cytotoxicity评估没发现有毒的效果。为了控制版本率,有球形的形状的2.5g/Lchitosanmicrospheres和光滑的表面,被合并,并且起始的版本进程被减轻,这被发现,当药集中没在版本率上有明显的效果时。metronidzole版本行为能根据实际应用被优化,这能被结束。

  • 标签: 温敏水凝胶 壳聚糖微球 释放行为 控制 甘油 磷酸
  • 简介:包括碳nanotubes(CNT)和graphene,碳nanostructures由于他们的特殊结构,优秀电的性质和高化学的稳定性广泛地被学习了。与纳米技术和nanoscience的发展,各种各样的方法被开发了综合CNTs/graphene并且装配他们进microelectronic/sensor设备。在这评论,我们主要为生物传感器在地效果晶体管(联邦货物税)在CNT和graphene和他们的应用程序的合成表明最近的进步。

  • 标签: 场效应晶体管 生物传感器 碳纳米材料 控制生长 碳纳米管 化学稳定性
  • 简介:Variousfunctionalgroupshavebeensuggestedtoplayessentialrolesonbiomineralizationofcalciumcarbonate(CaCO3)innaturalsystem.2Dand3DmodelsofregularlyarrangedfunctionalgroupshavebeenestablishedtoinvestigatetheireffectonCaCO3crystallization,Thismini-reviewsummarizestherecentprogressandthefuturedevelopmentisprospected.

  • 标签: FUNCTIONAL group BIOMINERALIZATION CRYSTALLIZATION CACO3
  • 简介:Thepurposeofthisresearchistoquantifytheeffectsofcompositionalandprocessingparametersonthemicrostructureandpropertiesofdualphasesteelproduceddirectlybyhotrollingandrapidcooling.Steelswiththebasecompositionof0.1%C,1.4%Si,and1.0%Mnwithadditionsof0.5%Crtoinfluencehardenability,0.04%Nbtoretardrecrystallizationinthelatterstagesofrolling,or0.02%Titoinhibitgraingrowthduringandafterreheatingwereinvestigated.Investigationwasmadetopredictmicrostructureevolutionandtocorrelatemicrostructurewithprocessingparameters.Theeffectsoftheimportantmicrostructureparameterssuchasferritegrainsize,martensitevolumefraction(VM)andmorphology(polygonalorfibrous)onthetensileandimpactpropertiesarediscussed.Multiplelinearregressionanalysisoftheultimatetensilestrengthhasshownthat,increasingVMandmartensitemicrohardnessandgrainrefinementofferritearethemajorcontributionstoincreasethestrengthofthesteel.Itwasfoundthatthedual-phasesteelproducedbycontrolledrollingprocess,withamicrostructurewhichconsistedoffinegrainedferrite(4μm)and35%~40%fibrousmartensite,presentedoptimumtensileandimpactpropertiesbecauseofenhancedresistancetocrackpropagation.

  • 标签: 轧制 显微组织 性质 DPS 马氏体
  • 简介:GliomacelllineC6culturedonsiliconsurfacesmodifiedbydifferentchemicalfunctionalgroups,includingmercapto(-SH),carboxyl(-COOH),amino(-NH2),hydroxyl(-OH)andmethyl(-CH3)groups,wasstudiedheretoinvestigatetheinfluenceofsurfacechemistryonthecellproliferation,adhesionandapoptosis.AFMconfirmedthesimilarcharacteristicofdifferentfunctionalgroupsoccupation.TheadheringC6exhibitedmorphologicalchangesinresponsetodifferentchemicalfunctionalgroups.TheC6adheredto-COOH,-NH2,-OHand-CH3surfacesandflattenedmorphology,whilethoseon-SHsurfaceexhibitedthesmallestcontactareawithmostlyroundedmorphology,whichledtothedeathofcancercells.TheresultsofMTTassayshowedthatthe-COOHand-NH2groupspromotedceilproliferation,whilethe-SHsignificantlyinhibitedtheproliferation.Comparedwithotherchemicalfunctionalgroups,the-SHgroupexhibiteditsuniqueeffectonthefateofcancercells,whichmightprovidemeansforthedesignofbiomaterialstopreventandtreatglioma.

  • 标签: GLIOMA cell line C6 CHEMICAL FUNCTIONAL