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Multifunctional polypyrrole@maghemite@silver composites: synthesis, physico-chemical characterization and antibacterial properties

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dc.title Multifunctional polypyrrole@maghemite@silver composites: synthesis, physico-chemical characterization and antibacterial properties en
dc.contributor.author Zasońska, Beata A.
dc.contributor.author Acharya, Udit
dc.contributor.author Pfleger, Jiří
dc.contributor.author Humpolíček, Petr
dc.contributor.author Vajďák, Jan
dc.contributor.author Svoboda, Jan
dc.contributor.author Petrovsky, Eduard
dc.contributor.author Hromádková, Jiřina
dc.contributor.author Walterová, Zuzana
dc.contributor.author Bober, Patrycja
dc.relation.ispartof Chemical Papers
dc.identifier.issn 0366-6352 OCLC, Ulrich, Sherpa/RoMEO, JCR
dc.date.issued 2018
utb.relation.volume 72
utb.relation.issue 7
dc.citation.spage 1789
dc.citation.epage 1797
dc.event.title International Conference on Polymers and Organic Materials for Electronics and Photonics - Science for Applications / 81st Prague Meeting on Macromolecules
dc.event.location Prague
utb.event.state-en Czech republic
utb.event.state-cs Česká republika
dc.event.sdate 2017-09-10
dc.event.edate 2017-09-14
dc.type article
dc.language.iso en
dc.publisher Springer International Publishing
dc.identifier.doi 10.1007/s11696-018-0429-3
dc.relation.uri https://link.springer.com/article/10.1007%2Fs11696-018-0429-3
dc.subject Polypyrrole en
dc.subject Maghemite en
dc.subject Silver en
dc.subject Conductivity en
dc.subject Magnetic properties en
dc.subject Antibacterial activity en
dc.description.abstract Maghemite (γ-Fe2O3) nanoparticles were synthesized by coprecipitation of ferrous and ferric salts with ammonia and oxidation with sodium hypochlorite. Polypyrrole (PPy) was obtained, by the chemical oxidative polymerization of pyrrole in an aqueous solution in the presence of iron oxide nanoparticles. The morphology of PPy was turned from globular to nanofibers by addition of dyes. The resulting PPy@γ-Fe2O3 hybrid composites were characterized by transmission electron microscopy, magnetic and electrical conductivity measurements and energy dispersive X-ray spectroscopy. Both the electrical conductivity and magnetic properties of the PPy@γ-Fe2O3 nanocomposites were controlled by the maghemite content due to the insulating properties of magnetic iron oxide nanoparticles added to the conducting polymer. Antibacterial activity of all materials was defined by determination of minimal inhibitory concentration. Antibacterial properties of native materials were improved by the reduction of silver ions from an aqueous solution to obtain PPy@γ-Fe2O3@silver composites. Due to the antibacterial properties of these composites, especially of those with silver particles, they can be considered for the applications where bacterial contamination can deteriorate the functionality of material. © 2018, Institute of Chemistry, Slovak Academy of Sciences. en
utb.faculty Faculty of Technology
dc.identifier.uri http://hdl.handle.net/10563/1008054
utb.identifier.obdid 43878254
utb.identifier.scopus 2-s2.0-85048874299
utb.identifier.wok 000435829800023
utb.identifier.coden CHPAE
utb.source j-scopus
dc.date.accessioned 2018-07-27T08:47:41Z
dc.date.available 2018-07-27T08:47:41Z
dc.description.sponsorship Czech Science Foundation [17-05095S]; TBU in Zlin [IGA/ CPS/2018/001]
utb.contributor.internalauthor Humpolíček, Petr
utb.contributor.internalauthor Vajďák, Jan
utb.wos.affiliation [Zasonska, Beata A.; Acharya, Udit; Svoboda, Jan; Hromadkova, Jirina; Walterova, Zuzana; Bober, Patrycja] Acad Sci Czech Republ, Inst Macromol Chem, Heyrovskeho Sq 2, CR-16206 Prague, Czech Republic; [Acharya, Udit] Charles Univ Prague, Fac Math & Phys, CR-12116 Prague 2, Czech Republic; [Humpolicek, Petr; Vajdak, Jan] Tomas Bata Univ Zlin, Fac Technol, Ctr Polymer Syst, Zlin 76001, Czech Republic; [Petrovsky, Eduard] Acad Sci Czech Republ, Inst Geophys, Bocni 2-1401, CR-14131 Prague 4, Czech Republic
utb.scopus.affiliation Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovského Sq. 2, Prague, Czech Republic; Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic; Centre of Polymer Systems, Faculty of Technology, Tomas Bata University in Zlin, Zlin, Czech Republic; Institute of Geophysics, Academy of Sciences of the Czech Republic, Boční II/1401, Prague, Czech Republic
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