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Stability and Aggregation of Metal Oxide Nanoparticles in Natural Aqueous Matrices
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2018-08-31 10:11 550阅读次数
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StabilityandAggregationofMetalOxideNanoparticlesinNaturalAqueousMatrices
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Stability and Aggregation of Metal Oxide Nanoparticles in Natural Aqueous Matrices- StabilityandAggregationofMetalOxideNanoparticlesinNaturalAqueousMatrices[详细]
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2018-08-31 10:11
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- Stability and Aggregation of Metal Oxide Nanoparticl
- Stability and Aggregation of Metal Oxide Nanoparticl[详细]
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专利
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- Metal Oxide Nanoparticles Induce Unique Inflammatory
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课件
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- Characterization of stability, aggregation, and equilibrium properties of modified natural products
- Unstablebiopolymersolutionsinevitablyleadtomis-characterizationofmacromolecularpropertiesandirreproducibleresults.Evenunderstableorquasi-stableconditions,persistentaggregatescanhamperreliablecharacterization,especiallyusinglightscatteringmethods.Variouspitfallsincharacterizingbiopolymerswereworkedthrough,includingdeterminationofsolutionstabilityzones,dissolutionkinetics,estimationoffractionofaggregatepopulations,andtherelationshipbetweenbatchandfractionationmethods.Chitosans,polyampholyticbiopolymerswithisoelectricpointaroundpH=6.0,withvaryingdegreesofcarboxymethylationwerestudied.Instabilitywasdeterminedvs.pHandionicstrengthusingahighthroughputscreeningmethod,simultaneousmultiplesamplelightscattering(SMSLS).Withstablesolutionconditionsdetermined,equilibriumbatchandmulti-detectorGPCcharacterizationofmolecularweight,intrinsicviscosity,andpolyelectrolytepropertieswasmade.Finally,afirstattemptatcontinuousonlinemonitoringofthemodificationreactionitselfwasmadeandcomparedtoFTIRanalysisofcarboxymethylationondiscretealiquots.Giventherangeofpossiblecharacterizationproblems,multipleapproacheswithindependentinstrumentsmayberequiredforreliablenaturalproductcharacterization.Onlinemonitoringofmodificationreactionsmayleadtorapidadvancesinunderstandingandpreparationofnaturalproducts.[详细]
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2018-08-31 10:11
产品样册
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- Characterization of stability, aggregation, and equilibrium properties of modified natural products;
- Unstablebiopolymersolutionsinevitablyleadtomis-characterizationofmacromolecularpropertiesandirreproducibleresults.Evenunderstableorquasi-stableconditions,persistentaggregatescanhamperreliablecharacterization,especiallyusinglightscatteringmethods.Variouspitfallsincharacterizingbiopolymerswereworkedthrough,includingdeterminationofsolutionstabilityzones,dissolutionkinetics,estimationoffractionofaggregatepopulations,andtherelationshipbetweenbatchandfractionationmethods.Chitosans,polyampholyticbiopolymerswithisoelectricpointaroundpH=6.0,withvaryingdegreesofcarboxymethylationwerestudied.Instabilitywasdeterminedvs.pHandionicstrengthusingahighthroughputscreeningmethod,simultaneousmultiplesamplelightscattering(SMSLS).Withstablesolutionconditionsdetermined,equilibriumbatchandmulti-detectorGPCcharacterizationofmolecularweight,intrinsicviscosity,andpolyelectrolytepropertieswasmade.Finally,afirstattemptatcontinuousonlinemonitoringofthemodificationreactionitselfwasmadeandcomparedtoFTIRanalysisofcarboxymethylationondiscretealiquots.Giventherangeofpossiblecharacterizationproblems,multipleapproacheswithindependentinstrumentsmayberequiredforreliablenaturalproductcharacterization.Onlinemonitoringofmodificationreactionsmayleadtorapidadvancesinunderstandingandpreparationofnaturalproducts.[详细]
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2018-08-31 10:11
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- Generation of metal nanoparticles in a microchannel
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2004-10-19 00:00
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Reduced aggregation and sedimentation of zero-valent iron nanoparticles in the presence of guar gum- Reduced aggregation and sedimentation of zero-valent iron nanoparticles in the presence of guar gum[详细]
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2013-11-25 00:00
实验操作
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- Discrimina ion of Storage Time for Pork Using Metal Oxide Semiconductor （MOS）-Type E-Nose
- Aninvestigationwasconductedtoevaluatethecapacityofanelectronicmetaloxidesemiconductor（MOS）-typenose（e-nose）toclassifyporksampleswithdifferentstoragetimes（06d）.Theeffectsoftheheadspace-generationtimeandporksamplemassontheresponseofthee-nosewerestudiedusingmultivariateanalysisofvarianceandonewayanalysisofvariance,respectively.Theresultsshowedthattheporksamplemasshadthemostsignificanteffectonthee-nosesensorresponse,followedbytheheadspacegenerationtime.Theoptimumparameterswere10gofsamplemasswith5minofheadspace-generationtimeina500mLvial.Aftereitherprincipalcomponentanalysisorlineardiscriminantanalysis,theresultsshowedthatthee-nosewiththeoptimumparameterscanaccuratelyclassifytheporksamplesstoredfor06d.Amethodusingabackpropagationneuralnetworkwasalsoperformed,and91.43%ofthepredictionset（with92.86%ofthetrainingset）wasclassifiedcorrectlyusingthismodel.[详细]
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2018-08-16 10:00
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- Cytotoxicity of aluminum oxide nanoparticles on Allium cepa root tipeffects of oxidative stress gen
- ThecommercialusageofAl2O3nanoparticles(Al2O3NPs)hasgoneupsignificantlyintherecenttimes,enhancingtheriskofenvironmentalcontaminationwiththeseagentsandtheirconsequentadverseeffectsonlivingsystems.ThecurrentstudyhasbeendesignedtoevaluatethecytogeneticpotentialofAl2O3NPsinAlliumcepa(roottipcells)atarangeofexposureconcentrations(0.01,0.1,1,10,and100μg/mL),theiruptake/internalizationprofile,andtheoxidativestressgenerated.Wenotedadose-dependentdecreaseinthemitoticindex(42to28%)andanincreaseinthenumberofchromosomalaberrations.Variouschromosomalaberrations,e.g.sticky,multipolarandlaggardchromosomes,chromosomalbreaks,andtheformationofbinucleatecells,wereobservedbyoptical,fluorescence,andconfocallaserscanningmicroscopy.FT-IRanalysisdemonstratedthesurfacechemicalinteractionbetweenthenanoparticlesandroottipcells.ThebiouptakeofAl2O3inparticulateformledtoreactiveoxygenspeciesgeneration,whichinturnprobablycontributedtotheinductionofchromosomalaberrations.[详细]
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2018-08-31 10:11
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- Graphene oxide
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- Cytotoxicity of aluminum oxide nanoparticles on Allium cepa root tip—effects of oxidative stress generation and biouptake
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2015-06-02 00:00
报价单
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- Determination of Mercury in Biological Matrices
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Isothermal stability- Isothermal stability[详细]
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- The sun as a natural power plant
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标准
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- The Aggregation of Hydrophobically Modified Polysacc
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标准
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- The Aggregation of Hydrophobically Modified Polysacc
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应用文章
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- AN55 Determination of Metal Cyanides
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期刊论文
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