Silver Nanoparticles Stabilised by Cationic Gemini Surfactants with Variable Spacer Length

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dc.contributor.authorPisárčik, Martincs
dc.contributor.authorJampílek, Josefcs
dc.contributor.authorLukáč, Milošcs
dc.contributor.authorHoráková, Renátacs
dc.contributor.authorDevínsky, Ferdinandcs
dc.contributor.authorBukovský, Mariáncs
dc.contributor.authorKalina, Michalcs
dc.contributor.authorTkacz, Jakubcs
dc.contributor.authorOpravil, Tomášcs
dc.coverage.issue10cs
dc.coverage.volume22cs
dc.date.accessioned2020-08-04T11:57:31Z
dc.date.available2020-08-04T11:57:31Z
dc.date.issued2017-10-23cs
dc.description.abstractThe present study is focused on the synthesis and investigation of the physicochemical and biological properties of silver nanoparticles stabilized with a series of cationic gemini surfactants having a polymethylene spacer of variable length. UV-VIS spectroscopy, dynamic light scattering, scanning electron microscopy and zeta potential measurements were applied to provide physicochemical characterization of the silver nanoparticles. The mean size values of the nanoparticles were found to be in the 50 to 115 nm range. From the nanoparticle size distributions and scanning electron microscopy images it results that a population of small nanoparticles with the size of several nanometers was confirmed if the nanoparticles were stabilized with gemini molecules with either a short methylene spacer (two or four CH2 groups) or a long spacer (12 CH2 groups). The average zeta potential value for silver nanoparticles stabilized with gemini molecules is roughly independent of gemini surfactant spacer length and is approx. +58 mV. An interaction model between silver nanoparticles and gemini molecules which reflects the gained experimental data, is suggested. Microbicidal activity determinations revealed that the silver nanoparticles stabilized with gemini surfactants are more efficient against Gram-negative bacteria and yeasts, which has a direct relation to the interaction mechanism of nanoparticles with the bacterial cell membrane and its structural composition.en
dc.formattextcs
dc.format.extent1-19cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationMOLECULES. 2017, vol. 22, issue 10, p. 1-19.en
dc.identifier.doi10.3390/molecules22101794cs
dc.identifier.issn1420-3049cs
dc.identifier.other140607cs
dc.identifier.urihttp://hdl.handle.net/11012/189387
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofMOLECULEScs
dc.relation.urihttps://www.mdpi.com/1420-3049/22/10/1794cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1420-3049/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectgemini surfactanten
dc.subjectsurfactant spaceren
dc.subjectsilver nanoparticleen
dc.subjectnanoparticle stabilityen
dc.subjectmicrobicidal activityen
dc.titleSilver Nanoparticles Stabilised by Cationic Gemini Surfactants with Variable Spacer Lengthen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-140607en
sync.item.dbtypeVAVen
sync.item.insts2020.08.04 13:57:30en
sync.item.modts2020.08.04 12:49:29en
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. CMV - laboratoř kovů a korozecs
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. CMV - laboratoř anorganických materiálůcs
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. CMV - laboratoř biokoloidůcs
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