Functionalized Magnetic Nanoparticles and Their Effect on Escherichia coli and Staphylococcus aureus

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dc.contributor.authorDarwish, Mohamed S. A.
dc.contributor.authorNguyen, Nhung H. A.
dc.contributor.authorŠevců, Alena
dc.contributor.authorStibor, Ivan
dc.date.accessioned2016-05-24
dc.date.available2016-05-24
dc.date.issued2015
dc.description.abstractMagnetite (Fe3O4) nanoparticles were prepared using coprecipitation and subsequently surface-functionalized with 3-aminopropyltriethoxysilane (APTS), polyethylene glycol (PEG), and tetraethoxysilane (TEOS). Nanoparticle morphology was characterized using scanning electron microscopy, while structure and stability were assessed through infrared spectroscopy and zeta potential, respectively. Average size of the nanoparticles analysed by dynamic light scattering was 89 nm, 123 nm, 109 nm, and 130 nm for unmodified magnetite and APTS-, PEG-, and TEOS-modified magnetite nanoparticles, respectively. Biological effect was studied on two bacterial strains: Gram-negative Escherichia coli CCM 3954 and Gram-positive Staphylococcus aureus CCM 3953. Most of modified magnetite nanoparticles had a significant effect on S. aureus and not on E. coli, whereas PEG- magnetite nanoparticles displayed no significant effect on the growth rate of either bacteria.en
dc.description.sponsorshipMinistry of Education, Youth and Sports [LO1201]; OPR&DI project Centre for Nanomaterials, Advanced Technologies and Innovation [CZ.1.05/2.1.00/01.0005]; "Project Development for Research Teams of R&D Projects" at the Technical university of Liberec [CZ.1.07/2.3.00/30.0024]
dc.formattext
dc.identifier.doi10.1155/2015/416012
dc.identifier.issn1687-4110
dc.identifier.scopus2-s2.0-84925609942
dc.identifier.urihttps://dspace.tul.cz/handle/15240/16380
dc.identifier.urihttps://www.hindawi.com/journals/jnm/2015/416012/
dc.language.isoen
dc.publisherHindawi Publishing Corporation
dc.publisherTechnická Univerzita v Libercics
dc.publisherTechnical university of Liberec, Czech Republicen
dc.relation.ispartofJournal Of Nanomaterialsen
dc.sourcej-scopus
dc.sourcej-wok
dc.titleFunctionalized Magnetic Nanoparticles and Their Effect on Escherichia coli and Staphylococcus aureusen
dc.typeArticle
local.accessopen
local.facultyInstitute for Nanomaterials, Advanced Technologies and Innovation
local.fulltextyes
local.identifier.publikace2344
local.identifier.wok351625700001
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