Polydopamine Coating of Graphitic Carbon Nitride, g-C3N4, Improves Biomedical Application

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dc.authoridŞahiner, Mehtap / 0000-0001-8666-7954
dc.authoridDemirci, Şahin / 0000-0001-7083-1481
dc.authoridŞahiner, Nurettin / 0000-0003-0120-530X
dc.contributor.authorŞahiner, Mehtap
dc.contributor.authorDemirci, Şahin
dc.contributor.authorŞahiner, Nurettin
dc.date.accessioned2025-01-27T21:01:29Z
dc.date.available2025-01-27T21:01:29Z
dc.date.issued2024
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.descriptionThis article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
dc.description.abstractGraphitic carbon nitride (g-C3N4) is an intriguing nanomaterial that exhibits photoconductive fluorescence properties under UV-visible light. Dopamine (DA) coating of g-C3N4 prepared from melamine was accomplished via self-polymerization of DA as polydopamine (PDA). The g-C3N4 was coated with PDA 1, 3, and 5 times repeatedly as (PDA@g-C3N4) in tris buffer at pH 8.5. As the number of PDA coatings was increased on g-C3N4, the peak intensity at 1512 cm(-1) for N-H bending increased. In addition, the increased weight loss values of PDA@g-C3N4 structures at 600 degrees C from TGA thermograms confirmed that the coating was accomplished. The band gap of g-C3N4, 2.72 eV, was reduced to 0.87 eV after five coatings with PDA. A pristine g-C3N4 was found to have an isoelectric point (IEP) of 4.0, whereas the isoelectric points of 1PDA@g-C3N4 and 3PDA@g-C3N4 are close to each other at 3.94 and 3.91, respectively. On the other hand, the IEP of 5PDA@g-C3N4 was determined at pH 5.75 assuming complete coating with g-C3N4. The biocompatibility of g-C3N4 and PDA@g-C3N4 against L929 fibroblast cell lines revealed that all PDA@g-C3N4 coatings were found to be biocompatible up to a 1000 mg/mL concentration, establishing that PDA coatings did not adversely affect the biocompatibility of the composite materials. In addition, PDA@g-C3N4 was screened for antioxidant potential via total phenol content (TPC) and total flavonoid content assays and it was found that PDA@g-C3N4 has recognizable TPC values and increased linearly with an increased number of PDA coatings. Furthermore, blood compatibility of pristine g-C3N4 is enhanced considerably upon PDA coating, affirmed by hemolysis and the blood clotting index%. Additionally, alpha-glucosidase inhibitory properties of PDA@g-C3N4 structures revealed that 67.6 + 9.8% of this enzyme was evenly inhibited by 3PDA@g-C3N4 structure.
dc.description.sponsorshipCanakkale Onsekiz Mart University Scientific Research Commission [COMU-BAP: FBA-2022-4117]
dc.description.sponsorshipThe financial support from Canakkale Onsekiz Mart University Scientific Research Commission (COMU-BAP: FBA-2022-4117) is acknowledged.
dc.identifier.doi10.3390/biomedicines12061151
dc.identifier.issn2227-9059
dc.identifier.issue6
dc.identifier.pmid38927358
dc.identifier.scopus2-s2.0-85197254984
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.3390/biomedicines12061151
dc.identifier.urihttps://hdl.handle.net/20.500.12428/27059
dc.identifier.volume12
dc.identifier.wosWOS:001254991200001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherMdpi
dc.relation.ispartofBiomedicines
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20250125
dc.subjectgraphitic carbon nitride (g-C3N4)
dc.subjectpolydopamine coating
dc.subjectphotoactive composite
dc.titlePolydopamine Coating of Graphitic Carbon Nitride, g-C3N4, Improves Biomedical Application
dc.typeArticle

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