Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/13977
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dc.contributor.authorÖzenler, Sezer-
dc.contributor.authorAlkan, Ali Ata-
dc.contributor.authorGunay, Ufuk Saim-
dc.contributor.authorDağlar, Özgün-
dc.contributor.authorDurmaz, Hakan-
dc.contributor.authorYıldız, Ümit Hakan-
dc.date.accessioned2023-11-11T08:54:57Z-
dc.date.available2023-11-11T08:54:57Z-
dc.date.issued2023-
dc.identifier.issn2470-1343-
dc.identifier.urihttps://doi.org/10.1021/acsomega.3c05445-
dc.identifier.urihttps://hdl.handle.net/11147/13977-
dc.description.abstractThe study describes a simple yet robust methodology for forming gradients in polymer coatings with nanometer-thickness precision. The thickness gradients of 0-20 nm in the coating are obtained by a reactive layer-by-layer assembly of polyester and polyethylenimine on gold substrates. Three parameters are important in forming thickness gradients: (i) the incubation time, (ii) the incubation concentration of the polymer solutions, and (iii) the tilt angle of the gold substrate during the dipping process. After examining these parameters, the characterization of the anisotropic surface obtained under the best conditions is presented in the manuscript. The thickness profile and nanomechanical characterization of the polymer gradients are characterized by atomic force microscopy. The roughness analysis has demonstrated that the coating exhibited decreasing roughness with increasing thickness. On the other hand, Young's moduli of the thin and thick coatings are 0.50 and 1.4 MPa, respectively, which assured an increase in mechanical stability with increasing coating thickness. Angle-dependent infrared spectroscopy reveals that the C-O-C ester groups of the polyesters exhibit a perpendicular orientation to the surface, while the C=C groups are parallel to the surface. The surface properties of the polymer gradients are explored by fluorescence microscopy, proving that the dye's fluorescence intensity increases as the coating thickness increases. The significant benefit of the suggested methodology is that it promises thickness control of gradients in the coating as a consequence of the fast reaction kinetics between layers and the reaction time.en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK)en_US
dc.description.sponsorshipS.O. is a YOK 100/2000 scholarship holder. The authors acknowledge the support of the Scientific and Technological Research Council of Turkey (TUBITAK) 2214-A International Doctoral Research Fellowship Programme for Ph.D. Students. They are thankful to the I.YTE library and ANKOS for the publication cost and to Alper Baran Sozmen for his assistance in obtaining fluorescence images.en_US
dc.language.isoenen_US
dc.publisherAmer Chemical Socen_US
dc.relation.ispartofACS Omegaen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectSurfaceen_US
dc.subjectFilmsen_US
dc.subjectBrushesen_US
dc.subjectFabricationen_US
dc.subjectImmobilizationen_US
dc.subjectPolyesteren_US
dc.titleThickness Gradient in Polymer Coating by Reactive Layer-by-Layer Assembly on Solid Substrateen_US
dc.typeArticleen_US
dc.authoridDurmaz, Hakan/0000-0003-4710-2496-
dc.authoridDaglar, Ozgun/0000-0003-1526-1994-
dc.institutionauthor-
dc.departmentİzmir Institute of Technologyen_US
dc.identifier.volume8en_US
dc.identifier.issue40en_US
dc.identifier.startpage37413en_US
dc.identifier.endpage37420en_US
dc.identifier.wosWOS:001072689500001en_US
dc.identifier.scopus2-s2.0-85174944137en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.doi10.1021/acsomega.3c05445-
dc.identifier.pmid37841123en_US
dc.authorscopusid12767522200-
dc.authorscopusid58665396600-
dc.authorscopusid54884459800-
dc.authorscopusid57188996219-
dc.authorscopusid8575568100-
dc.authorscopusid8516383700-
dc.authorwosidDurmaz, Hakan/C-1124-2008-
dc.authorwosidDaglar, Ozgun/H-2043-2018-
dc.identifier.scopusqualityQ1-
item.cerifentitytypePublications-
item.fulltextNo Fulltext-
item.grantfulltextnone-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.languageiso639-1en-
item.openairetypeArticle-
crisitem.author.dept01. Izmir Institute of Technology-
crisitem.author.dept04.01. Department of Chemistry-
Appears in Collections: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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