Electrochemical Performance of Ti-Based Commercial Biomaterials

Abstract

In order to determine the electrochemical behavior against the corrosion of different commercial biomaterials, in this study the results of the evaluation of different titanium implants are reported. The commercial implants evaluated were purchased randomly with different suppliers. The different biomaterials were subjected to studies of potentiodynamic polarization curves, open circuit potential measurements, linear polarization resistance measurements, and electrochemical impedance spectroscopy measurements in a 0.9% NaCl solution. The results showed that the chemical composition of the biomaterials corresponds to commercially pure Ti or to the alloy Ti6Al4V. In addition, although all the biomaterials showed a high resistance to corrosion, notable differences were observed in their performance. These differences were associated with the thermomechanical processes during the manufacture of the biomaterial, which affected its microstructure.

Biomimetic Cell–Substrate of Chitosan-Cross-linked Polyaniline Patterning on TiO2 Nanotubes Enables hBM-MSCs to Differentiate the Osteoblast Cell Type

“…This value became stable after 504 s due to the passivity of the oxide layer, but the low OCP value was likely due to the hydration of the oxide layer due to the long-standing of the material at an applied potential. However, this value indicates that the prepared nanotube has more anticorrosion behavior and is consistent with the reported values . By contrast, TiO 2 NTs-PANI showed relatively high fluctuation within less than 45 min, then increased to a stable value at approximately 24 mV.…”

“…However, this value indicates that the prepared nanotube has more anticorrosion behavior and is consistent with the reported values. 53 By contrast, TiO 2 NTs-PANI showed relatively high fluctuation within less than 45 min, then increased to a stable value at approximately 24 mV. This value is significantly higher than the OCP values of TiO 2 NTs and TiO 2 NTs-PANI@CS (OCP at −13 mV).…”

Electrochemical Performance of Fe40Al-X (X = Cr, Ti, Co, Ni) Alloys Exposed to Artificial Saliva

“…The observed behavior is consistent with that reported in other studies [39][40][41][42][43][44], that is, Ti and its alloys tend to develop on their surface a protective oxide (TiO 2 ) composed of a bilayer oxide where the outer layer is porous and the inner layer is a barrier. Figure 7 shows the variation of the impedance spectra of the Fe40Al base intermetallic as a function of immersion time.…”

Electrochemical Characterisation of Bovine Serum Albumin Adsorption on Phenolic- Coated Nickel-Titanium

“…Open circuit potential The OCP can monitor the formation of protective films on the surface of the electrode [16]. The increase of OCP indicates the formation of a passive film, and a decrease is indicative of its breakage, dissolution, or non-formation, and a value without significant variation indicates a stable surface [16,17]. For the control surface, OCPs recorded in Fig.…”