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1、专业英语复试题-1Mesocrystals(介晶)areanewclassofnanostructuredsolidmaterials,whicharemostoftenmadeofcrystallographically(晶向)orientednanoparticles.Structuralfeatures,properties,andpossibleapplicationsofmesocrystalsaresummarizedinthispaper.Duetotheiruniquestructuralf
2、eaturesandtheresultingphysicalandphysicochemicalproperties,mesocrystalsareexpectedtoplayasignificantroleinimprovingtheperformanceofmaterialsinmanyapplications.Theseareasdiverseasheterogeneousphotocatalysts,electrodes,optoelectronics,biomedicalmaterials,har
3、dtemplates,andlightweightstructuralmaterials.Inthepast6years,moreandmoreattentionhasbeenpaidtomesocrystallinematerials.Anincreasingnumberofpapershavebeenpublishedintheliterature.Mostofthesefocusedonthecharacterizationofstructuresandtheinvestigationofformat
4、ionmechanisms.Theresultsindicatethatthestructureandformationmechanismofamesocrystalarerelatedtotheshapeofthenanoparticle,colloidalstabilization,andvectoriallong-rangeinteractionpotentials.Surfaceinteractionbetweenthenanoparticlesplaysacriticalroleduringthe
5、formationprocessofamesocrystalandmayberesponsiblefortheformationofexternalfaces.Thereasonfortheremarkably(almostperfectlyinsomecases)orderedalignmentofnanoparticlesisstillpoorlyunderstood.Specialemphasishasbeenplacedonthedifferentpossibleforcesthatmaydrive
6、orientationandassemblybetweennanoparticles.专业英语复试题-2Thisworkdescribesthereal-timeandquantitativeanalysisofcalciumphosphatemineralizationusingaquartzcrystalmicrobalance(QCM)sensorandsyntheticDNAtemplates.Intypicalmineralizationstudies,staticend-pointanalysi
7、sandsurfacecharacterizationiscommon,whilereal-timequantitationfocusingontimeofnucleation,nucleationrates,timeofcrystalgrowth,andgrowthrateshasnotbeenwidelyexplored.Abetterunderstandingoftheseparametersincoordinationwithstructuralanalysiscouldaidintheassess
8、mentoftemplatemoleculesandcouldprovideinsightintobiologicalandbiomimeticmineralization.QCMisadynamic,real-timeanalyticaltechniquethatcanbegeneralizedtoavarietyofmineralsandcanbeintegratedwithwidelyusedsurface