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Corrosion resistance of titanium alloys in the artificial saliva solution

Loch J., Krawiec H., Łukaszczyk A., Augustyn-Pieniążek J.

Journal of Achievements in Materials and Manufacturing Engineering

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2016

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Vol. 74, nr 1

29--36

EN

Purpose: The purpose of this article was to characterize the corrosion behaviour and compare two biomedical titanium alloys (Ti-6Al-4V and Ti-10Mo-4Zr) in an artificial saliva solution (MAS) containing lactic acid and hydrogen peroxide (H2O2) used in dentistry. The addition of these two compounds simulate the situation, where the alloy is implanted in the human body and hydrogen peroxide is generated by the inflammatory reaction and lactic acid is release by bacterial in the oral cavity. Design/methodology/approach: In this studies were used following electrochemical techniques: Open Circuit Potential (OCP), Linear Sweep Voltamperometry (LSV), Chronoamperometry at constant potential and Electrochemical Impedance Spectroscopy (EIS). Electrochemical impedance spectra were carried out at the 0.5 V vs. Ag/AgCl potential. The EIS data were fitted using the ZViev software. Findings: The results presented in the work demonstrate that the titanium alloys have a good corrosion resistance. The corrosion behaviour was determined by surface condition of alloys and presence different chemical compounds in the solution. For Ti-10Mo-4Zr titanium alloy in MAS with different concentration of hydrogen peroxide in anodic domain it was seen more clearly. Research limitations/implications: In the future passive films of both titanium alloys will be investigated by: X-ray photoelectron spectroscopy (XPS) and scanning electron spectroscopy (SEM). Originality/value: The corrosion behaviour of biomedical titanium alloy contains molybdenum and zirconium selected as safe alloying elements for human body is presented and compared to commercial Ti-6Al-4V alloy. The corrosion resistance of the titanium alloys was investigated in the artificial saliva solution with addition of lactic acid and hydrogen peroxide.

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Poliasparaginiany jako nowe materiały polimerowe do zastosowań w inżynierii biomateriałowej

Polaczek J., Pielichowski J., Piątkowski M.

Engineering of Biomaterials

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2008

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Vol. 11, no. 77-80

84--86

PL

W Katedrze Chemii i Technologii Tworzyw Sztucznych PK opracowano nowatorską, oryginalną metodę syntezy poli(kwasu asparaginowego)(PAA) i jego pochodnych przy wykorzystaniu techniki mikrofalowej [1]. Przeprowadzono badania nad degradacją poliasparaginianów w roztworze soli fizjologicznej. Podjęto też próby zastosowania ich jako modyfikatorów tworzyw stosowanych w implantologii, podłoża do hodowli komórek oraz nośnika leku.

EN

At the Department of Chemistry and Technology of Polymers a new original method of poly(asparti acid)(PAA) and its derivatives synthesis under microwave irradiation was developed [1]. Tests on degradation of polyaspartates in physiological salt solution as well as application as modifiers of plastics used in implantology, cell culture basis and drug carrier were carried out.

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Badania in vitro, terpolimeru PVDF-PTFE-PP, modyfikowanego włóknami alginianowymi

Stodolak E., Czajkowska B., Błażewicz M., Mikołajczyk T., Wołowska-Czapnik D.

Inżynieria Biomateriałów

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2004

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R. 7, nr 38-42

208-211

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Synteza poli(kwasu asparaginowego) - polimeru stosowanego w inżynierii biomedycznej

Polaczek J., Pielichowski J., Dziki E.

Inżynieria Biomateriałów

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2003

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R. 6, nr 28

21-23