Synthesis of PEI-Functionalized Magnetic Nanoparticles for Capturing Bacteria-中国期刊网

摘要 Polyethyleneimine(PEI)functionalizedFe3O4MNPsweresynthesizedbyamodifiedhypothermaloxidativehydrolysismethod.Themagneticnanoparticlesshowedpositivelychargedsurface,strongmagneticresponsivityanduniformparticlesizedistributionat56.1±0.6nm.Aggregationofthesemagneticnanoparticleswereobservedonthesurfaceofdifferenttypeofbacteria.Magneticcapturingofbacteriawerefacilitatedbythesemagneticnanoparticles.Thecapturingefficiencycouldreach90%aftertworoundsofinteractionsof5minutes.ThemechanismandprocessofinteractionsbetweenbacteriaandpolyethyleneiminefunctionalizedFe3O4magneticnanoparticleswereexploredanddiscussed.ThepresentstudynotonlyprovidesinsightintointeractionsbetweenFe3O4@PEIMNPsandbacterialcells,butalsoopensanewavenuefordesigningandapplyingFe3O4@PEIMNPsasbiosensorsinmicrobiology,medicine,andenvironmentalscience.

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Synthesis of PEI-Functionalized Magnetic Nanoparticles for Capturing Bacteria

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Synthesis of PEI-Functionalized Magnetic Nanoparticles for Capturing Bacteria

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