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The effect of reduction of graphene oxide on the formation of hydroxyapatite and tricalcium phosphate

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dc.contributor.authors Turk, S; Altinsoy, I; Efe, GC; Ipek, M; Ozacar, M; Bindal, C;
dc.date.accessioned 2020-10-16T11:08:48Z
dc.date.available 2020-10-16T11:08:48Z
dc.date.issued 2018
dc.identifier.citation Turk, S; Altinsoy, I; Efe, GC; Ipek, M; Ozacar, M; Bindal, C; (2018). The effect of reduction of graphene oxide on the formation of hydroxyapatite and tricalcium phosphate. VACUUM, 148, 10-1
dc.identifier.issn 0042-207X
dc.identifier.uri https://doi.org/10.1016/j.vacuum.2017.10.037
dc.identifier.uri https://hdl.handle.net/20.500.12619/69727
dc.description.abstract This study reports on biomimetic mineralization route employing reduced graphene oxide (RGO) at different rates as a template material for biomineralization of biphasic hydroxyapatite/tricalcium phosphate (HAP/TCP). RGO-HAP/TCP hybride composites were synthesized via biomineralization in Simulated Body Fluid (SBF). GO was prepared from pristine graphite by Hummers and Offeman method. GO nanoparticles were reduced with sodium borohydride (NaBH4) before soaking in 5xSBF for 3 weeks at 37 degrees C and 7.4 pH to performing biomineralization. Surface area and average size distribution of fabricated GO were found as 813.2 m(2) g(-1) and 1.2968 mu m by using BET and DLS technique, respectively. All surfaces are overall negatively charged and zeta potentials of GO, R(1)GO, R(2)GO, R(3)GO were found to be -35.05, -30.01, 29.5, -29.01 and -28.9, respectively in the neutral pH. The contact angles of GO, R(1)GO, R(2)GO and R(3)GO are 33.5 degrees, 55.3 degrees, 57.4 degrees and 61.1 degrees, respectively. The ID/IG values determined by Raman are 1.07, 1.04, 1.02 and 1.01 for GO, R(1)GO, R(2)GO and R(3)GO, respectively. After the reduction, its maximum peak at 236 was clearly shifted to 260, 264 and 267 nm for R(1)GO, R(2)GO and R(3)GO. The precipitation of biphasic HAP/TCP on R(1)GO and R(2)GO was confirmed by XRD, FTIR and TGA analysis. (C) 2017 Elsevier Ltd. All rights reserved.
dc.language English
dc.publisher PERGAMON-ELSEVIER SCIENCE LTD
dc.subject Physics
dc.title The effect of reduction of graphene oxide on the formation of hydroxyapatite and tricalcium phosphate
dc.type Article
dc.identifier.volume 148
dc.identifier.startpage 1
dc.identifier.endpage 10
dc.contributor.department Sakarya Üniversitesi/Biyomedikal, Manyetik Ve Yarıiletken Malzemeler Araştırma Merkezi
dc.contributor.saüauthor Türk, Serbülent
dc.contributor.saüauthor Altınsoy, İbrahim
dc.contributor.saüauthor Çelebi Efe, Gözde Fatma
dc.contributor.saüauthor İpek, Mediha
dc.contributor.saüauthor Özacar, Mahmut
dc.contributor.saüauthor Bindal, Cuma
dc.relation.journal VACUUM
dc.identifier.wos WOS:000423636900001
dc.identifier.doi 10.1016/j.vacuum.2017.10.037
dc.contributor.author Türk, Serbülent
dc.contributor.author Altınsoy, İbrahim
dc.contributor.author Çelebi Efe, Gözde Fatma
dc.contributor.author İpek, Mediha
dc.contributor.author Özacar, Mahmut
dc.contributor.author Bindal, Cuma


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