Recent Progress on Silica Coating of Nanoparticles and Related Nanomaterials.pdf

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1、www.advmat.dewww.MaterialsViews.comRecentProgressonSilicaCoatingofNanoparticlesandRelatedNanomaterialsByAndre´sGuerrero-Martı´nez,*JorgePe´rez-Juste,andLuisM.Liz-Marza´n*layersbytheirchemicalandphysicalPROGRESSREPORTInrecentyears,newstrategiesforsilicacoatingofinorganicnanoparticlespropertie

2、sthatunderlinethecrust,stableshellformedmainlybysilica(around61%andorganicnanomaterials,whichdifferfromtheclassicalmethodologies,ofthetotalcomposition),whichisinhaveemergedattheforefrontofmaterialsscience.Silicaasacoatingmaterialconstantinteractionwithaggressiveexter-promisesanunparalleledop

3、portunityforenhancementofcolloidalpropertiesnalfluidmediasuchaswateroratmo-andfunctionsbyusingcoreshellrationaldesignsandprofitingfromitssphericgases.Thissilicatelayerhasmain-syntheticversatility.ThiscontributionprovidesabriefoverviewofrecenttainedthephysicalintegrityoftheEarth’score–shellarch

4、itecture,playingamainroleprogressinthesynthesisofsilica-coatednanomaterialsandtheirsignificantasaplatformforlife.impactindifferentareassuchasspectroscopy,magnetism,catalysis,andInanalogywiththismodel,butinsizebiology.dimensionsdefinedbytheimportanceof[3]Brownianmotion,intherangefrom1nmto1mm,co

5、atingofcolloidalparticles,polymers,andsurfactantaggregateswithsilicahasbeenfrequentlystudiedinmaterialsscienceandchemistryfor[4]1.Introductionenhancementofcolloidalstability.Notableexamplesincludethesilicacoatingofcolloidalsystemssuchasnanoscalemetals,semiconductors,magneticorceramicnanopart

6、icles,withhighTheneedtoincreasethetopologicalcomplexityofcolloid-basedsurfacearea,quantumconfinement,magneticandopticalstructuresforthecreationofdesignermaterialswithspecific[5]properties.Theuseofsilicaasacoatingmaterialmainlyliesfunctionalitiesdemandsabetterunderstandingoftherelation-initsano

7、malouslyhighstability,especiallyinaqueousmedia,butshipsbetweenmaterialtopologyandmaterialfunction.Theotherreasonsincludeeasyregulationofthecoatingprocess,designofnewfunctionalmaterialsisadrivingforceinthebroadchemicalinertness,controlledporosity,pr