Orbital - Vol. 16 No. 1 - January-March 2024
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The use of POPE Phospholipid as a First-layer Coating of the Ti-6Al-4V Alloy: Preliminary Studies: POPE phospholipid as a first-layer coating of the Ti-6Al-4V alloy

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  • João Pedro Lopes do Nascimento,
  • Murilo Oliveira Alves Ferreira,
  • Gabriella Terezinha Lima Teixeira,
  • Natália Bueno Leite Slade,
  • Idalina Vieira Aoki,
  • Jeferson Moreto
João Pedro Lopes do Nascimento
Institute of Exact Sciences, Naturals and Education, Federal University of Triângulo Mineiro (UFTM)
Murilo Oliveira Alves Ferreira
Materials Engineering Department, São Carlos School of Engineering, University of São Paulo
Gabriella Terezinha Lima Teixeira
Institute of Exact Sciences, Naturals and Education, Federal University of Triângulo Mineiro (UFTM)
Natália Bueno Leite Slade
Institute of Exact Sciences, Naturals and Education, Federal University of Triângulo Mineiro (UFTM)
Idalina Vieira Aoki
Polytechnic School, Chemical Engineering Department, University of São Paulo
Jeferson Moreto
Universidade Federal do Triângulo Mineiro
DOI: https://doi.org/10.17807/orbital.v15i5.19304
Published May 2, 2024
Keywords
  • Biomaterials,
  • Coatings,
  • EIS,
  • Phospholipids,
  • Titanium alloy
How to Cite
(1)
do Nascimento, J. P. L.; Ferreira, M. O. A.; Teixeira, G. T. L.; Bueno Leite Slade, N.; Vieira Aoki, I.; Moreto, J. The Use of POPE Phospholipid As a First-Layer Coating of the Ti-6Al-4V Alloy: Preliminary Studies. Orbital: Electron. J. Chem. 2024, 16, 10-16.

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Abstract

Phospholipids emerge as a powerful tool to be used as a coating for biomaterials, as they can increase the biocompatibility of the material and inhibit the growth of bacterial cells. Here, POPE phospholipid was deposited on the Ti-6Al-4V alloy surfaces by using a simple method, seeking to improve the corrosion resistance of the base material. Results show that the electrochemical potential of the Ti-6Al-4V/POPE is more positive than that observed in the base material, which could indicate a lower susceptibility to corrosion. Two EECs were used to explain the corrosion mechanisms of the coated and uncoated specimens, demonstrating the base material displays an oxide layer about 1.86 nm in the beginning of the corrosion tests and 2.59 nm after 24 h of immersion. Due to the complexity of the system containing lipids deposited on the metallic matrix, the corrosion behaviour of Ti-6Al-4V/POPE was evaluated considering only the evolution of the CPEs with immersion times. This work shows that the use of POPE for coating the Ti-6Al-4V alloy increased the corrosion resistance of the base material, expanding the range of advantages in the use of this surface treatment in the development of new biomaterials.

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