简介：CuSmicrocrystalsweresuccessfullypreparedthroughamildsolvothermalreactioninethyleneglycol(EG)withtheassistanceofcationicsurfactantcetyltrimethylammoniumbromide(CTAB).Aninterestingmorphologyevolutionfromflower-likemicrospherestohollowmicrospheres,andfinallytosmoothnanoflakeswasobservedwhenincreasingtheamountofCTAB.TheproductswerecharacterizedbyX-raydiffraction(XRD),scanningelectronmicroscopy(SEM),transmissionelectronmicroscopy(TEM),andUV—visspectroscopy.ItwasfoundthattheamountofCTABplayedanimportantroleindeterminingthemorphologyoftheCuSmicrocrystals.Electricalmeasurementrevealsthattheas-preparedCuSmicrosphereswereofhighconductivity,whichmightfavortheirdeviceapplications.ItisexpectedthatCuSmicrocrystalswithcontrolledmorphologiesandstructureswillhaveimportantapplicationsinsolarcells.Thissimplebuteffectivemethodcouldalsobeextendedtothecontrolledgrowthofotherinorganicmicrocrystals.

简介：Amontmorilloniteinorgano-intercalationcompound(MIIC)wassynthesizedbyusingapurifiedNa-exchangedbentonite(PNaB)asamatrixandAl-pillaringionasanintercalatingreagentundermicrowaveirradiation.ThesynthesizedproductswerecharacterizedbyX-raydiffraction(XRD),27Almagicanglesample-spinningnuclearmagneticresonance(27AlMASNMR),specificsurfacearea(BET)measurement,andadsorptiondensitydetermination.Theresultsshowthat,at5%solid(PNaB)concentrationand7minutesirradiationina130Wmicrowaveoven,thebasalspacingd(001)ofthesynthesizedMIICincreasesto1.740nmfromtheoriginal1.218nmofPNaB.TheMIIChasmuchhigheradsorptivedensitiestoF-andCr6+fromaqueoussolutionthanthePNaB.TheadsorptionisothermofF-ontheMIICfollowstheFreundlichequation,andtheincreasedadsorptionismainlyduetotheporousstructureoftheMIICwhichcreatedlargeradsorptionsurfaces.TheadsorptionisothermofCr6+onMIICfollowstheLangmuirequationandtheadsorptionismainlymonolayerasaresultofchemisorptions.

简介：HeparinwascovalentlyimmobilizedontopolyurethanesurfaceviaaPEGspacerbyamicrowave-assistedapproachtoimprovebloodcompatibility.Firstly,amino-terminatedpoly(ethyleneglycol)(APEG)wasrapidlygraftedontoPUsurfacewithin20minbyatwo-stepmethodinvolvingmicrowave-assistedMDI-functionalizationandsubsequentmicrowave-assistedAPEGcoupling.Then,heparinwascovalentlyimmobilizedthroughanamidelinkagebythedirectcouplingofthecarboxylicacidofheparinwiththeaminogroupofAPEGonPUsurfaceusingcarbodiimidecouplingreaction.ThesurfacestructureandpropertieswerecharacterizedbyX-rayphotoelectronspectroscopy(XPS),atomicforcemicroscopy(AFM)andwatercontactanglemeasurements.Theresultsrevealedthatheparin-immobilizedPUsurfacehadslightlyincreasedroughnessandsignificantlyimprovedhydrophilicityincomparisontotheoriginalPUsurface.Theanticoagulantactivityoffilmswasevaluatedbywholebloodclottingtime(CT)andprothrombintime(PT).Complementactivationwasassessedbydetectingcomplementfragment3aconcentrationsofserumexposedtothefilms.Theresultsrevealedthatthemicrowave-assistedheparin-immobilizedPUfilmshadexcellentantithrombogenicityandsuppressedcomplementactivation,indicatingimprovedbloodcompatibility.

简介：在苏打石灰玻璃里嵌入的银nanoclusters(NC)被电的fieldassisted散开(EFAD)并且连续退火综合。样品被紫外力的吸收光谱学，光致发光光谱学，X光检查光电子光谱学(XPS)，和一生大小描绘。银的生长聚类的试验性的结果表演被退火的温度和居住时间赞成。同样传播、退火的玻璃样品在紫外刺激下面在550nm附近显示出光致发光，它能与L中心和Ag3的存在被联系+簇。并且增加在SPR的外观的结果达到顶点的退火的温度和居住时间并且光紧张减少因为Ag3+簇长大进Agnanoparticles。

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简介：Ag-TiAlintermetallicalloy,Tie45Ale2Nbe2Mn(at.%)e0.8vol.%TiB2,hasbeenprocessedfromgasatomizedprealloyedpowderbyfieldassistedhotpressing(FAHP).Aninitialanalysisoftheprealloyedpowderhelpedontheunderstandingoftheintermetallicsinteringbehavior.Atomizedpowderconsistedofametastablephasethattransformedintoa2tgequilibriumphasesbythermaltreating.Differentpowderparticlemicrostructureswerefound,whichinfluencethemicrostructuredevelopmentoftheFAHPg-TiAlmaterialdependingonthesinteringtemperature.Duplex,nearlylamellarandfullylamellarmicrostructureswereobtainedatthesinteringtemperaturesabove1000C.Lowerconsolidationtemperatures,below1000C,ledtotheformationofanAlrichphaseatpowderparticleboundaries,whichisdeleterioustothemechanicalproperties.Highcompressiveyieldstrengthof1050MPawasobservedinsampleswithFAHPduplexmicrostructuresatroomtemperature.Whereasnearlylamellarandfullylamellarmicrostructuresshowedyieldstrengthvaluesof655and626MPaatroomtemperatureand440and425MPaat750C,respectively,whicharesuperiorincomparisontosimilaralloysprocessedbyothertechniques.Theseexcellentpropertiescanbeexplainedduetothedifferentvolumefractionsofthea2andgphasesandtherefinementofthePMmicrostructures.