Graphene reinforced hybrid-bioceramic coatings on porous-Ti6Al4V for biomedical applications: morphology, corrosion resistance, and cell viability

Aslan, Naim; Aksakal, Bünyamin; Dikici, Burak; Sinirlioglu, Z. A.

doi:10.1007/s10853-022-07695-7

Cited by 4 publications

(5 citation statements)

References 66 publications

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“…The presence of carbon peak became more apparent with the rise of GO reinforcement. Again, Tricalcium phosphate (TCP) and CaHPO4 structures, which can be formed due to heat treatment [10,12], were not found in porous structures. The sharp peaks formed by both HA and GO reinforced HA porous structures can be explained by the presence of crystallinity of these structures.…”

Section: Morphological and Structural Characterizations Of Scaffold S...mentioning

confidence: 99%

“…Furthermore, it is considered that the addition of GO with sp 2 hybrid bond structure increases the coefficient of expansion, thus tending to bind more to HA and increase cracks [12]. As a matter of fact, the increase in the amount of GO in the matrix material HA (especially over 1wt%) makes it possible to create cracks and negatively affect the mechanical properties due to the fact that the very strong carbon bonds form a tighter bond with the HA forms together with the heat treatment [10,21]. MPa in the 0.5wt% Gr nanoplates reinforced HA composite structure [23].…”

Section: Mechanical Measurementsmentioning

confidence: 99%

“…GO is an astonishing 2D material which shows astonishing mechanical resistance due to its sp 2 hybrid binding structure. GO is carbon based material; hence, it is non-toxic [9][10][11]. Gr and GO are also light, flexible, and biocompatible; therefore, it stands out as a promising material in the production of functional bioceramics used in biomedical applications [12].…”

Section: Introductionmentioning

confidence: 99%

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Morpho-structural and compressive mechanical properties of graphene oxide reinforced hydroxyapatite scaffolds for bone tissue applications

Fidan¹,

Aslan²,

Koç³

2023

Res. Eng. Struct. Mater.

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Hydroxyapatite (HA) is a unique material that has the potential to be used to replace bones and teeth in the field of orthopedics and dentistry since HA exhibits quite similar biological and chemical characteristics to human bone. Hydroxyapatite ceramics are bioactive materials used to repair damaged human tissue. The pores in the porous hydroxyapatite ceramics provide a mechanical interlock, enabling a solid bond and fixation between the implant and bone. In this study, 0.5wt%, 1wt%, and 1.5wt% graphene oxide (GO) reinforced porous HA structures were obtained using the space-holder method to increase the strength of hydroxyapatite with low mechanical strength. NaCl was used as a spacer, and PEG 400 as a binder. Scaffold structures with 40% porosity rates were sintered at 1000 ᵒC under vacuum. Finally, a compression test was applied to the samples which were previously analyzed by SEM, EDS and XRD. The compressive strengths of 0.5%, 1%, and 1.5% graphene oxide reinforced porous HA samples were determined between 8.04 and 31.14 MPa. The highest compressive strength was recorded as 31.14 MPa in the 1% GO added sample, and the lowest compressive strength was recorded as 8.04 MPa in the 1.5% GO added sample. In addition, it was understood that the mechanical properties did not increase regularly with the increase of graphene oxide reinforcing.

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Section: Morphological and Structural Characterizations Of Scaffold S...mentioning

confidence: 99%

Section: Mechanical Measurementsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Morpho-structural and compressive mechanical properties of graphene oxide reinforced hydroxyapatite scaffolds for bone tissue applications

Fidan¹,

Aslan²,

Koç³

2023

Res. Eng. Struct. Mater.

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“…The deposition of graphene oxide on the surface of Ti6Al4V titanium alloy filaments using laser-induced breakdown spectroscopy (LIBS) was presented in a study [14] in which it was demonstrated that graphene oxide has the ability to integrate into the structure of the filament surface, thereby increasing biocompatibility and osseointegration. The effect of reduced graphene oxide (rGO), which is part of the coatings based on hydroxyapatite (HA) obtained by the sol-gel method, on the corrosion resistance and cell engraftment of the porous alloy, Ti6Al4V (P-Ti6Al4V), was presented in [15]. The results showed a decreased corrosion rate and improved cell viability, in vitro, for samples with a 0.5 and a 1.0 wt.% of rGO-HA.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Tribological Characteristics of PEO Coatings Formed on Ti6Al4V Titanium Alloy in Electrolytes with Graphene Oxide Additives

et al. 2023

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Coatings with a thickness from ~40 to ~50 µm on Ti6Al4V titanium alloys were formed by plasma electrolytic oxidation (PEO) in a silicate-hypophosphite electrolyte with the addition of graphene oxide. The PEO treatment was carried out in the anode–cathode mode (50 Hz) at a ratio of anode and cathode currents of 1:1; their sum density was 20 A/dm2, and the treatment’s duration was 30 min. The effect of the graphene oxide’s concentration in the electrolyte on the thickness, roughness, hardness, surface morphology, structure, composition, and tribological characteristics of the PEO coatings was studied. Wear experiments, under dry conditions, were carried out in a ball-on-disk tribotester with an applied load of 5 N, a sliding speed of 0.1 m·s−1, and a sliding distance of 1000 m. According to the obtained results, the addition of graphene oxide (GO) into the base silicate-hypophosphite electrolyte leads to a slight decrease in the coefficient of friction (from 0.73 to 0.69) and a reduction in the wear rate by more than 1.5 times (from 8.04 to 5.2 mm3/N·m), with an increase in the GO’s concentration from 0 to 0.5 kg/m3, respectively. This occurs due to the formation of a GO-containing lubricating tribolayer upon contact with the coating of the counter-body in the friction pair. Delamination of the coatings during wear occurs due to contact fatigue; with an increase in the concentration of GO in the electrolyte from 0 to 0.5 kg/m3, this process slows down by more than four times.

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“…İnce filmler günümüz teknolojisinde kullanılan birçok cihazın ve uygulamanın temelini oluşturmaktadırlar. Bu filmler sürtünme, korozyon, sıcaklık gibi dış etkilere karşı kaplandığı yüzeyleri ve malzemeleri korurken aynı zamanda teknolojik uygulamada da kullanılmaktadır [8][9][10][11]. İnce filmlerin geçmişi oldukça eskiye dayanmaktadır.…”

Section: Introductionunclassified

A Glimpse to the Essential Thin Film Production Techniques

KARAKUŞ,

KOÇ

2023

Kırklareli Üniversitesi Mühendislik Ve Fen Bilimleri Dergisi

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Malzeme bilimi ve teknolojilerinin gelişmesi daha kaliteli, sağlam ve dayanıklı malzemelerin üretilmesine imkân sağlamıştır. Bu gelişmelerin temelinde ince filmlerin yaygın olarak kullanılması ve ince film üretim teknolojilerinin gelişmesi etkili olmuştur. İnce film üretim teknikleri akademik araştırmalarda, teknolojik uygulamalarda ve birçok endüstriyel faaliyette yaygın olarak kullanılmaktadır. Hazırladığımız çalışmamızda temel ince film üretim teknikleri incelenmiş, ince film üretiminde kullanılan her bir temel tekniğin sahip olduğu avantajlar ve dezavantajlar tartışılmış ve ince filmlerin potansiyel uygulama alanlarına değinilmiştir.

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Graphene reinforced hybrid-bioceramic coatings on porous-Ti6Al4V for biomedical applications: morphology, corrosion resistance, and cell viability

Cited by 4 publications

References 66 publications

Morpho-structural and compressive mechanical properties of graphene oxide reinforced hydroxyapatite scaffolds for bone tissue applications

Morpho-structural and compressive mechanical properties of graphene oxide reinforced hydroxyapatite scaffolds for bone tissue applications

Investigation of Tribological Characteristics of PEO Coatings Formed on Ti6Al4V Titanium Alloy in Electrolytes with Graphene Oxide Additives

A Glimpse to the Essential Thin Film Production Techniques

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