Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/11826
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dc.contributor.authorYıldırımkaraman, Öykü-
dc.contributor.authorÖzenler, Sezer-
dc.contributor.authorGünay, Ufuk Saim-
dc.contributor.authorDurmaz, Hakan-
dc.contributor.authorYıldız, Ümit Hakan-
dc.date.accessioned2021-12-02T18:16:16Z-
dc.date.available2021-12-02T18:16:16Z-
dc.date.issued2021-
dc.identifier.issn0743-7463-
dc.identifier.urihttps://doi.org/10.1021/acs.langmuir.1c01070-
dc.identifier.urihttps://hdl.handle.net/11147/11826-
dc.description.abstractWe here demonstrate the utilization of reactive layer-by-layer (rLBL) assembly to form a nanogel coating made of branched polyethylenimine (BPEI) and alkyne containing polyester (PE) on a gold surface. The rLBL is generated by the rapid aza-Michael addition reaction of the alkyne group of PE and the -NH2 groups of BPEI by yielding a homogeneous gel coating on the gold substrate. The thickness profile of the nanogel revealed that a 400 nm thick coating is formed by six multilayers of rLBL, and it exhibits 50 nm roughness over 8 mu m distance. The LBL characteristics were determined via depth profiling analysis by X-ray photoelectron spectroscopy, and it has been shown that a 70-100 nm periodic increase in gel thickness is a consequence of consecutive cycles of rLBL. A detailed XPS analysis was performed to determine the yield of the rLBL reaction: the average yield was deduced as 86.4% by the ratio of the binding energies at 286.26 eV, (C CN-C bond) and 283.33 eV, (C C triple bond). The electrochemical characterization of the nanogels ascertains that up to the six-multilayered rLBL of BPEI-PE is electroactive, and the nanogel permeability had led to drive mass and charge transfer effectively. These results promise that nanogel formation by rLBL films may be a straightforward modification of electrodes approach, and it exhibits potential for the application of soft biointerfaces.en_US
dc.description.sponsorshipS.O. is a YOK 100/2000 scholarship holder. The authors would like to acknowledge the support of the Scientific and Technological Research Council of Turkey (TUBITAK) 2214A International Doctoral Research Fellowship Programme for Ph.D. Students. XPS point and depth profiling analysis were performed at Ege University Central Research Testing and Analysis Laboratory Research and Application Center (EGEMATAL). We are thankful to Dr. Aysegul Erdog.an for the fruitful discussion of XPS data.en_US
dc.language.isoenen_US
dc.publisherAmerican Chemical Societyen_US
dc.relation.ispartofLangmuiren_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectNanostructured materialsen_US
dc.subjectPolyethyleniminesen_US
dc.titleElectroactive nanogel formation by reactive layer-by-layer assembly of polyester and branched polyethylenimine via aza-Michael additionen_US
dc.typeArticleen_US
dc.departmentİzmir Institute of Technology. Chemistryen_US
dc.identifier.volume37en_US
dc.identifier.issue37en_US
dc.identifier.startpage10902en_US
dc.identifier.endpage10913en_US
dc.identifier.wosWOS:000699959400003en_US
dc.identifier.scopus2-s2.0-85114888613en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.doi10.1021/acs.langmuir.1c01070-
dc.identifier.pmid34477388en_US
dc.authorwosidDurmaz, Hakan/C-1124-2008-
dc.identifier.wosqualityQ2-
dc.identifier.scopusqualityN/A-
item.fulltextWith Fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextopen-
item.openairetypeArticle-
crisitem.author.dept01. Izmir Institute of Technology-
crisitem.author.dept04.01. Department of Chemistry-
Appears in Collections:Chemistry / Kimya
PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
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