Laser texturing of Ti-6Al-4V to inhibit biofilm growth

• Grant number: 20/07819-9
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: October 01, 2020
• End date: September 30, 2021
• Field of knowledge: Engineering - Materials and Metallurgical Engineering
• Principal Investigator: Aline Gonçalves Capella
• Grantee: Gabrielle Garcia Santa Maria
• Host Institution: Instituto de Ciência e Tecnologia (ICT). Universidade Federal de São Paulo (UNIFESP). Campus São José dos Campos. São José dos Campos , SP, Brazil

Abstract

Titanium and its alloys are biocompatible and considered in the manufacturing of dental and orthopedic implants. Techniques for chemical and topographic modifications of the surfaces have been imployeed to improve the biofuncionility of metallic materials. Since bioadhesion is influenced by the hydrophilicity of a material, the surface topography may inhibit the bacterial cell adhesion, depending on the topographic pattern in the region. In addition, the literature has showed that the oxide formation on the titanium surface, specially the TiO2, contributes to the region sterilization, promoting improvements in the biocompatibility of this metal. The main objective of the research is promote the laser texturing of Ti-6Al-4V surface, processing the metal under inherent and active atmospheres. The project aim to obtain process parameters which reaches a good maturity degree in this technology and allows to trace a route for future applications in biomedical components, such as prostheses of dental and / or orthopedic. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

SANTA MARIA GODOY, GABRIELLE G.; DE ANDRADE, VITOR MARTINS; DONDEO, FABIO; CONCEICAO, KATIA; CAPELLA, ALINE. Effect of laser thermochemical treatment of Ti-6Al-4V alloy on Candida albicans biofilm growth. Materials Chemistry and Physics, v. 294, p. 9-pg., 2023-01-15. (20/07819-9)