Development and characterization of silver and zinc doped bioceramic layer on metallic implant materials for orthopedic application

Monika Furko; Yunhong Jiang; Terry Wilkins; Csaba Balázsi

doi:10.1016/j.ceramint.2015.12.006

Development and characterization of silver and zinc doped bioceramic layer on metallic implant materials for orthopedic application

Monika Furko^*, Yunhong Jiang, Terry Wilkins, Csaba Balázsi

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

A successful electrodeposition method for preparing silver and zinc modified bioactive calcium phosphate layers onto surgical grade titanium alloy material (Ti6Al4V) was developed. The coatings were deposited on the Ti6Al4V surface by pulse current at 70 °C from an electrolyte containing adequate amounts of calcium nitrate, ammonium dihydrogen phosphate, zinc nitrate and silver nitrate. The corrosion resistivity of the bioceramic coatings was assessed in conventional Ringer's solution in a three electrode open cell by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. The results revealed the pure bioactive calcium phosphate (CaP) coated implant materials to possess the highest resistivity to corrosion, while the silver and zinc doped CaP layer showed at least one order of magnitude lower corrosion resistance. These modified CaP coatings can be further considered as antimicrobial coatings with enhanced biocompatibility. The morphology and structure of the coatings were characterized by Scanning electron microscopy (SEM), Energy-dispersive X-ray Spectroscopy (EDX) and X-ray diffraction (XRD) that confirmed the pulse current deposited CaP layer to consist of a mixture of different calcium phosphate phases such as hydroxyapatite (HAp), monetite (dicalcium phosphate, CaHPO₄) as well as other Ca-containing components, portlandite (Ca(OH)₂) and parascholzite (CaZn₂(PO₄)₂(H₂O)₂).

Original language	English
Pages (from-to)	4924-4931
Number of pages	8
Journal	Ceramics International
Volume	42
Issue number	4
Early online date	10 Dec 2015
DOIs	https://doi.org/10.1016/j.ceramint.2015.12.006
Publication status	Published - Mar 2016
Externally published	Yes

Keywords

Bioceramic layer
Electrochemical impedance spectroscopy
Hydroxyapatite
Implant materials

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10.1016/j.ceramint.2015.12.006

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title = "Development and characterization of silver and zinc doped bioceramic layer on metallic implant materials for orthopedic application",

abstract = "A successful electrodeposition method for preparing silver and zinc modified bioactive calcium phosphate layers onto surgical grade titanium alloy material (Ti6Al4V) was developed. The coatings were deposited on the Ti6Al4V surface by pulse current at 70 °C from an electrolyte containing adequate amounts of calcium nitrate, ammonium dihydrogen phosphate, zinc nitrate and silver nitrate. The corrosion resistivity of the bioceramic coatings was assessed in conventional Ringer's solution in a three electrode open cell by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. The results revealed the pure bioactive calcium phosphate (CaP) coated implant materials to possess the highest resistivity to corrosion, while the silver and zinc doped CaP layer showed at least one order of magnitude lower corrosion resistance. These modified CaP coatings can be further considered as antimicrobial coatings with enhanced biocompatibility. The morphology and structure of the coatings were characterized by Scanning electron microscopy (SEM), Energy-dispersive X-ray Spectroscopy (EDX) and X-ray diffraction (XRD) that confirmed the pulse current deposited CaP layer to consist of a mixture of different calcium phosphate phases such as hydroxyapatite (HAp), monetite (dicalcium phosphate, CaHPO4) as well as other Ca-containing components, portlandite (Ca(OH)2) and parascholzite (CaZn2(PO4)2(H2O)2).",

keywords = "Bioceramic layer, Electrochemical impedance spectroscopy, Hydroxyapatite, Implant materials",

author = "Monika Furko and Yunhong Jiang and Terry Wilkins and Csaba Bal{\'a}zsi",

year = "2016",

month = mar,

doi = "10.1016/j.ceramint.2015.12.006",

language = "English",

volume = "42",

pages = "4924--4931",

journal = "Ceramics International",

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TY - JOUR

T1 - Development and characterization of silver and zinc doped bioceramic layer on metallic implant materials for orthopedic application

AU - Furko, Monika

AU - Jiang, Yunhong

AU - Wilkins, Terry

AU - Balázsi, Csaba

PY - 2016/3

Y1 - 2016/3

N2 - A successful electrodeposition method for preparing silver and zinc modified bioactive calcium phosphate layers onto surgical grade titanium alloy material (Ti6Al4V) was developed. The coatings were deposited on the Ti6Al4V surface by pulse current at 70 °C from an electrolyte containing adequate amounts of calcium nitrate, ammonium dihydrogen phosphate, zinc nitrate and silver nitrate. The corrosion resistivity of the bioceramic coatings was assessed in conventional Ringer's solution in a three electrode open cell by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. The results revealed the pure bioactive calcium phosphate (CaP) coated implant materials to possess the highest resistivity to corrosion, while the silver and zinc doped CaP layer showed at least one order of magnitude lower corrosion resistance. These modified CaP coatings can be further considered as antimicrobial coatings with enhanced biocompatibility. The morphology and structure of the coatings were characterized by Scanning electron microscopy (SEM), Energy-dispersive X-ray Spectroscopy (EDX) and X-ray diffraction (XRD) that confirmed the pulse current deposited CaP layer to consist of a mixture of different calcium phosphate phases such as hydroxyapatite (HAp), monetite (dicalcium phosphate, CaHPO4) as well as other Ca-containing components, portlandite (Ca(OH)2) and parascholzite (CaZn2(PO4)2(H2O)2).

AB - A successful electrodeposition method for preparing silver and zinc modified bioactive calcium phosphate layers onto surgical grade titanium alloy material (Ti6Al4V) was developed. The coatings were deposited on the Ti6Al4V surface by pulse current at 70 °C from an electrolyte containing adequate amounts of calcium nitrate, ammonium dihydrogen phosphate, zinc nitrate and silver nitrate. The corrosion resistivity of the bioceramic coatings was assessed in conventional Ringer's solution in a three electrode open cell by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. The results revealed the pure bioactive calcium phosphate (CaP) coated implant materials to possess the highest resistivity to corrosion, while the silver and zinc doped CaP layer showed at least one order of magnitude lower corrosion resistance. These modified CaP coatings can be further considered as antimicrobial coatings with enhanced biocompatibility. The morphology and structure of the coatings were characterized by Scanning electron microscopy (SEM), Energy-dispersive X-ray Spectroscopy (EDX) and X-ray diffraction (XRD) that confirmed the pulse current deposited CaP layer to consist of a mixture of different calcium phosphate phases such as hydroxyapatite (HAp), monetite (dicalcium phosphate, CaHPO4) as well as other Ca-containing components, portlandite (Ca(OH)2) and parascholzite (CaZn2(PO4)2(H2O)2).

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KW - Electrochemical impedance spectroscopy

KW - Hydroxyapatite

KW - Implant materials

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DO - 10.1016/j.ceramint.2015.12.006

M3 - Article

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EP - 4931

JO - Ceramics International

JF - Ceramics International

IS - 4

ER -

Development and characterization of silver and zinc doped bioceramic layer on metallic implant materials for orthopedic application

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