Electrophoretic deposition of graphene oxide on plasma electrolytic oxidized-magnesium implants for bone tissue engineering applications

Aidin Bordbar Khiabani; Sina Rahimi; Benyamin Yarmand; Masoud Mozafari

doi:10.1016/j.matpr.2018.04.169

Electrophoretic deposition of graphene oxide on plasma electrolytic oxidized-magnesium implants for bone tissue engineering applications

Aidin Bordbar Khiabani^*
, Sina Rahimi
, Benyamin Yarmand
, Masoud Mozafari

^*Corresponding author for this work

Not published at VTT

Materials and Energy Research Center (MERC)

Research output: Contribution to journal › Article in a proceedings journal › Scientific › peer-review

51 Citations (Scopus)

Abstract

Biodegradable magnesium (Mg) alloys have been widely used in fabrication of biomedical orthopedic implants owing to their similar characteristics to natural bone. In order to create a strong connection to the bone and to prevent inflammation, these implants should have a high corrosion resistance in physiological environment. In this study, Graphene oxide (GO) layer was produced on a plasma electrolytic oxidation (PEO) coating of AZ91 Mg alloy by electrophoretic deposition (EPD) process. The field emission scanning electron microscopy (FE-SEM) micrographs of the coating surfaces and cross sections showed that PEO coating had porous structure which considerably changed after EPD treatment and its micropores and microcracks were sealed by GO particles. Also, X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR) results confirmed the formation of GO layers on MgO coating after PEO/EPD process. The corrosion behavior was studied by conducting potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) tests in simulated body fluid (SBF) solution. Potentiodynamic tafel curve measurements demonstrated that the corrosion current density of the MgO/GO coating decreased by 56 and 708 times compared to PEO coating and bare substrate, respectively. Moreover, the EIS results indicated that the value of |Z|_f_→0 of the MgO/GO coating (1.64×10⁶ ω.cm²) was slightly higher than PEO coating (8.21×10⁴ ω.cm²), attributed to the formation of a GO film as the top layer preventing infiltration of aggressive solution into the AZ91 substrate.

Original language	English
Pages (from-to)	15603-15612
Number of pages	10
Journal	Materials Today: Proceedings
Volume	5
Issue number	7
DOIs	https://doi.org/10.1016/j.matpr.2018.04.169
Publication status	Published - 2018
MoE publication type	A4 Article in a conference publication
Event	2017 INN International Conference/Workshop on Nanotechnology and Nanomedicine, NTNM 2017 - Tehran, Iran, Islamic Republic of Duration: 2 May 2017 → 3 May 2017

Funding

The authors thank Mr. F. Movasagh-alangh for his technical support with the experiments. This work was partialy supported with research grant (NO.: 247383) by Materials and Energy Research Center (MERC), Tehran, Iran

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 9 Industry, Innovation, and Infrastructure

Keywords

AZ91 Mg alloy
Corrosin resistance
Graphene oxide
MgO/GO coating
PEO/EPD process

Access to Document

10.1016/j.matpr.2018.04.169

Cite this

@article{fff872af272b49d19d1675a45af93e96,

title = "Electrophoretic deposition of graphene oxide on plasma electrolytic oxidized-magnesium implants for bone tissue engineering applications",

abstract = "Biodegradable magnesium (Mg) alloys have been widely used in fabrication of biomedical orthopedic implants owing to their similar characteristics to natural bone. In order to create a strong connection to the bone and to prevent inflammation, these implants should have a high corrosion resistance in physiological environment. In this study, Graphene oxide (GO) layer was produced on a plasma electrolytic oxidation (PEO) coating of AZ91 Mg alloy by electrophoretic deposition (EPD) process. The field emission scanning electron microscopy (FE-SEM) micrographs of the coating surfaces and cross sections showed that PEO coating had porous structure which considerably changed after EPD treatment and its micropores and microcracks were sealed by GO particles. Also, X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR) results confirmed the formation of GO layers on MgO coating after PEO/EPD process. The corrosion behavior was studied by conducting potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) tests in simulated body fluid (SBF) solution. Potentiodynamic tafel curve measurements demonstrated that the corrosion current density of the MgO/GO coating decreased by 56 and 708 times compared to PEO coating and bare substrate, respectively. Moreover, the EIS results indicated that the value of |Z|f→0 of the MgO/GO coating (1.64×106 ω.cm2) was slightly higher than PEO coating (8.21×104 ω.cm2), attributed to the formation of a GO film as the top layer preventing infiltration of aggressive solution into the AZ91 substrate.",

keywords = "AZ91 Mg alloy, Corrosin resistance, Graphene oxide, MgO/GO coating, PEO/EPD process",

author = "\{Bordbar Khiabani\}, Aidin and Sina Rahimi and Benyamin Yarmand and Masoud Mozafari",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd.; 2017 INN International Conference/Workshop on Nanotechnology and Nanomedicine, NTNM 2017 ; Conference date: 02-05-2017 Through 03-05-2017",

year = "2018",

doi = "10.1016/j.matpr.2018.04.169",

language = "English",

volume = "5",

pages = "15603--15612",

journal = "Materials Today: Proceedings",

issn = "2214-7853",

publisher = "Elsevier",

number = "7",

}

Electrophoretic deposition of graphene oxide on plasma electrolytic oxidized-magnesium implants for bone tissue engineering applications. / Bordbar Khiabani, Aidin; Rahimi, Sina; Yarmand, Benyamin et al.
In: Materials Today: Proceedings, Vol. 5, No. 7, 2018, p. 15603-15612.

Research output: Contribution to journal › Article in a proceedings journal › Scientific › peer-review

TY - JOUR

T1 - Electrophoretic deposition of graphene oxide on plasma electrolytic oxidized-magnesium implants for bone tissue engineering applications

AU - Bordbar Khiabani, Aidin

AU - Rahimi, Sina

AU - Yarmand, Benyamin

AU - Mozafari, Masoud

PY - 2018

Y1 - 2018

N2 - Biodegradable magnesium (Mg) alloys have been widely used in fabrication of biomedical orthopedic implants owing to their similar characteristics to natural bone. In order to create a strong connection to the bone and to prevent inflammation, these implants should have a high corrosion resistance in physiological environment. In this study, Graphene oxide (GO) layer was produced on a plasma electrolytic oxidation (PEO) coating of AZ91 Mg alloy by electrophoretic deposition (EPD) process. The field emission scanning electron microscopy (FE-SEM) micrographs of the coating surfaces and cross sections showed that PEO coating had porous structure which considerably changed after EPD treatment and its micropores and microcracks were sealed by GO particles. Also, X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR) results confirmed the formation of GO layers on MgO coating after PEO/EPD process. The corrosion behavior was studied by conducting potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) tests in simulated body fluid (SBF) solution. Potentiodynamic tafel curve measurements demonstrated that the corrosion current density of the MgO/GO coating decreased by 56 and 708 times compared to PEO coating and bare substrate, respectively. Moreover, the EIS results indicated that the value of |Z|f→0 of the MgO/GO coating (1.64×106 ω.cm2) was slightly higher than PEO coating (8.21×104 ω.cm2), attributed to the formation of a GO film as the top layer preventing infiltration of aggressive solution into the AZ91 substrate.

AB - Biodegradable magnesium (Mg) alloys have been widely used in fabrication of biomedical orthopedic implants owing to their similar characteristics to natural bone. In order to create a strong connection to the bone and to prevent inflammation, these implants should have a high corrosion resistance in physiological environment. In this study, Graphene oxide (GO) layer was produced on a plasma electrolytic oxidation (PEO) coating of AZ91 Mg alloy by electrophoretic deposition (EPD) process. The field emission scanning electron microscopy (FE-SEM) micrographs of the coating surfaces and cross sections showed that PEO coating had porous structure which considerably changed after EPD treatment and its micropores and microcracks were sealed by GO particles. Also, X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR) results confirmed the formation of GO layers on MgO coating after PEO/EPD process. The corrosion behavior was studied by conducting potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) tests in simulated body fluid (SBF) solution. Potentiodynamic tafel curve measurements demonstrated that the corrosion current density of the MgO/GO coating decreased by 56 and 708 times compared to PEO coating and bare substrate, respectively. Moreover, the EIS results indicated that the value of |Z|f→0 of the MgO/GO coating (1.64×106 ω.cm2) was slightly higher than PEO coating (8.21×104 ω.cm2), attributed to the formation of a GO film as the top layer preventing infiltration of aggressive solution into the AZ91 substrate.

KW - AZ91 Mg alloy

KW - Corrosin resistance

KW - Graphene oxide

KW - MgO/GO coating

KW - PEO/EPD process

UR - https://www.scopus.com/pages/publications/85049199188

U2 - 10.1016/j.matpr.2018.04.169

DO - 10.1016/j.matpr.2018.04.169

M3 - Article in a proceedings journal

AN - SCOPUS:85049199188

SN - 2214-7853

VL - 5

SP - 15603

EP - 15612

JO - Materials Today: Proceedings

JF - Materials Today: Proceedings

IS - 7

T2 - 2017 INN International Conference/Workshop on Nanotechnology and Nanomedicine, NTNM 2017

Y2 - 2 May 2017 through 3 May 2017

ER -

Electrophoretic deposition of graphene oxide on plasma electrolytic oxidized-magnesium implants for bone tissue engineering applications

Abstract

Funding

UN SDGs

Keywords

Access to Document

Other files and links

Fingerprint

Cite this