Please use this identifier to cite or link to this item: http://doi.org/10.25358/openscience-8168
Full metadata record
DC FieldValueLanguage
dc.contributor.authorSarif, Massih-
dc.contributor.authorJegel, Olga-
dc.contributor.authorGazanis, Athanasios-
dc.contributor.authorHartmann, Jens-
dc.contributor.authorPlana-Ruiz, Sergi-
dc.contributor.authorHilgert, Jan-
dc.contributor.authorFrerichs, Hajo-
dc.contributor.authorViel, Melanie-
dc.contributor.authorPanthöfer, Martin-
dc.contributor.authorKolb, Ute-
dc.contributor.authorTahir, Muhammad Nawaz-
dc.contributor.authorSchemberg, Jörg-
dc.contributor.authorKappl, Michael-
dc.contributor.authorHeermann, Ralf-
dc.contributor.authorTremel, Wolfgang-
dc.date.accessioned2022-10-31T09:21:55Z-
dc.date.available2022-10-31T09:21:55Z-
dc.date.issued2022-
dc.identifier.urihttps://openscience.ub.uni-mainz.de/handle/20.500.12030/8183-
dc.description.abstractPreventing bacteria from adhering to material surfaces is an important technical problem and a major cause of infection. One of nature’s defense strategies against bacterial colonization is based on the biohalogenation of signal substances that interfere with bacterial communication. Biohalogenation is catalyzed by haloperoxidases, a class of metal-dependent enzymes whose activity can be mimicked by ceria nanoparticles. Transparent CeO2/polycarbonate surfaces that prevent adhesion, proliferation, and spread of Pseudomonas aeruginosa PA14 were manufactured. Large amounts of monodisperse CeO2 nanoparticles were synthesized in segmented flow using a high-throughput microfluidic benchtop system using water/benzyl alcohol mixtures and oleylamine as capping agent. This reduced the reaction time for nanoceria by more than one order of magnitude compared to conventional batch methods. Ceria nanoparticles prepared by segmented flow showed high catalytic activity in halogenation reactions, which makes them highly efficient functional mimics of haloperoxidase enzymes. Haloperoxidases are used in nature by macroalgae to prevent formation of biofilms via halogenation of signaling compounds that interfere with bacterial cell–cell communication (“quorum sensing”). CeO2/polycarbonate nanocomposites were prepared by dip-coating plasma-treated polycarbonate panels in CeO2 dispersions. These showed a reduction in bacterial biofilm formation of up to 85% using P. aeruginosa PA14 as model organism. Besides biofilm formation, also the production of the virulence factor pyocyanin in is under control of the entire quorum sensing systems P. aeruginosa. CeO2/PC showed a decrease of up to 55% in pyocyanin production, whereas no effect on bacterial growth in liquid culture was observed. This indicates that CeO2 nanoparticles affect quorum sensing and inhibit biofilm formation in a non-biocidal manner.en_GB
dc.description.sponsorshipGefördert durch die Deutsche Forschungsgemeinschaft (DFG) - Projektnummer 491381577de
dc.language.isoengde
dc.rightsCC BY*
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/*
dc.subject.ddc570 Biowissenschaftende_DE
dc.subject.ddc570 Life sciencesen_GB
dc.titleHigh-throughput synthesis of CeO2 nanoparticles for transparent nanocomposites repelling Pseudomonas aeruginosa biofilmsde_DE
dc.typeZeitschriftenaufsatzde
dc.identifier.doihttp://doi.org/10.25358/openscience-8168-
jgu.type.contenttypeScientific articlede
jgu.type.dinitypearticleen_GB
jgu.type.versionPublished versionde
jgu.type.resourceTextde
jgu.organisation.departmentFB 10 Biologiede
jgu.organisation.number7970-
jgu.organisation.nameJohannes Gutenberg-Universität Mainz-
jgu.rights.accessrightsopenAccess-
jgu.journal.titleScientific reportsde
jgu.journal.volume12de
jgu.pages.alternative3935de
jgu.publisher.year2022-
jgu.publisher.nameSpringer Naturede
jgu.publisher.placeLondonde
jgu.publisher.issn2045-2322de
jgu.organisation.placeMainz-
jgu.subject.ddccode570de
jgu.publisher.doi10.1038/s41598-022-07833-wde
jgu.organisation.rorhttps://ror.org/023b0x485-
jgu.subject.dfgNaturwissenschaftende
Appears in collections:DFG-491381577-G

Files in This Item:
  File Description SizeFormat
Thumbnail
highthroughput_synthesis_of_c-20221025103939693.pdf3.06 MBAdobe PDFView/Open