Banca de DEFESA: KAMILLA VERONIKA RODRIGUES DE ANDRADE SILVA

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : KAMILLA VERONIKA RODRIGUES DE ANDRADE SILVA
DATE: 10/11/2023
TIME: 09:00
LOCAL: Programa de Pós-Graduação em Ciência de Materiais
TITLE:

BIOFUNCTIONALIZATION OF TITANIUM SURFACE AND ITS ALLOYS FOR BIOMEDICAL APPLICATIONS

KEY WORDS:

metal alloys; bone implants; functionalization.

PAGES: 92
BIG AREA: Outra
AREA: Multidisciplinar
SUMMARY:

Prostheses can be used to replace, mimic or repair parts of bone tissue that have been lost due to systeinic diseases and/or injuries. Titanium and its alloys are the most studied and used materials in the application of this type of implant due to their mechanical characteristics, corrosion resistance and biocompatibility. However, despite its high quality, it is estimated that in the first five years after the implant there is around 10% failure due to problems with osseointegration. Several recent studies have sought different solutions to reduce problems related to bone implants due to osseointegration. Part of these solutions involves the biofunctionalization of the surface of titanium and its alloys. In this sense, we developed this work, which is divided into three aspects, aiming to obtain Titanium discs and some of its alloys with different coatings that enable the functionalization of these surfaces. The first stage of this work relates to the manufacturing and characterization, in addition to biological tests of Ti6A14V and TNZT (Titanium-Niobium-Zirconium-Tantalum) discs. The next step was the deposition of T1O2 and SiO2 followed by their characterization. Finally, the third stage consisted of characterizing the condensed tannin obtained from the bark of the species of Mimosa Tenuiflora and Anadenanthera macrocarpa, trees typical of the caatinga of northeastern Brazil. This material was chosen due to its bactericidal potential. Firstly, the physical-chemical characterization of condensed tannin was carrled out using FTIR, UV-Vis, C RMN, H RMN, EPR and TGA techniques.

COMMITTEE MEMBERS:
Externa à Instituição - DENISE GRANATO CHUNG
Presidente - 2457389 - EDUARDO PADRON HERNANDEZ
Externo à Instituição - HEBER CLAUDIUS NUNES SILVA - IFPE
Interna - 3218211 - MARCELLA AUXILIADORA DE MELO LUCENA
Externo à Instituição - RAMÓN RAUDEL PEÑA GARCIA - UFRPE