Corrosion Behavior of Titanium in Simulated Body Solutions with the Addition of Biomolecules

• Published in: ACS omega Vol. 5; no. 22; pp. 12768 - 12776
• Main Authors: Radovanović, Milan B., Tasić, Žaklina Z., Simonović, Ana T., Petrović Mihajlović, Marija B., Antonijević, Milan M.
• Format: Journal Article
• Language: English
• Published: American Chemical Society 09-06-2020
• ISSN: 2470-1343; 2470-1343
• DOI: 10.1021/acsomega.0c00390

Titanium is one of
the most used biomaterials for different applications. The aim of
this study is to investigate the influence of adenine, thymine, and
l
-histidine as important biomolecules in the human body on the
corrosion behavior of titanium in simulated body solutions. Open circuit
measurements, potentiodynamic measurements, electrochemical impedance
spectroscopy measurements, and quantum chemical calculations were
employed during the investigation. All electrochemical methods used
revealed that the investigated biomolecules provide better corrosion
resistance to titanium in artificial body solutions. The increase
in corrosion resistance is a result of the formation of a stable protective
film on the metal surface. Also, quantum chemical calculations are
in compliance with electrochemical test results and indicate that
adenine, thymine, and
l
-histidine may act as corrosion inhibitors
in the investigated solutions.