Experimental analysis and predictive modelling of Ti6Al4V laser surface texturing for biomedical applications

Melo-Fonseca, F.; Guimarães, Bruno; Gasik, Michael; Silva, Filipe; Miranda, G.

doi:10.1016/j.surfin.2022.102466

Cited by 5 publications

(4 citation statements)

References 46 publications

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“…The observed wetting state is characteristic of titanium surfaces stored under atmospheric conditions (air) [ 45 ]. Moreover, Melo-Fonseca et al [ 46 ] and Reggio et al [ 47 ] reported the hydrophilic nature of mechanically polished Ti-6Al-4V alloy. In contrast, for the samples after surface modification, a switch from hydrophilic to hydrophobic behavior is evident.…”

Section: Resultsmentioning

confidence: 99%

Influence of Hybrid Surface Modification on Biocompatibility and Physicochemical Properties of Ti-6Al-4V ELI Titanium

Woźniak,

Smok,

Szewczenko

et al. 2024

JFB

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Titanium-based materials are the most widely used materials in biomedical applications. However, according to literature findings, the degradation products of titanium have been associated with potential allergic reactions, inflammation, and bone resorption. The corrosion process of Ti-6Al-4V in the human body environment may be exacerbated by factors such as reduced pH levels and elevated concentrations of chloride compounds. Coatings made of biopolymers are gaining attention as they offer numerous advantages for enhancing implant functionality, including improved biocompatibility, bioactivity, wettability, drug release, and antibacterial activity. This study analyzes the physicochemical and electrochemical behavior of the Ti-6Al-4V ELI alloy subjected to PCL and PCL/TiO2 deposition by the electrospinning method. To characterize the polymer-based layer, tests of chemical and phase composition, as well as surface morphology investigations, were performed. Wetting angle tests were conducted as part of assessing the physicochemical properties. The samples were subjected to corrosion behavior analysis, which included open circuit potential measurements, potentiodynamic tests, and the electrochemical impedance spectroscopy method. Additionally, the quantification of released ions post the potentiodynamic test was carried out using the inductively coupled plasma atomic emission spectrometry (ICP–AES) method. Cytotoxicity tests were also performed. It was found that surface modification by depositing a polymer-based layer on the titanium substrate material using the electrospinning method provides improved corrosion behavior, and the samples exhibit non-toxic properties.

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Section: Resultsmentioning

confidence: 99%

Influence of Hybrid Surface Modification on Biocompatibility and Physicochemical Properties of Ti-6Al-4V ELI Titanium

Woźniak,

Smok,

Szewczenko

et al. 2024

JFB

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“…Shinonaga et al [26] utilized the femtosecond laser to fabricate nanostructures with a periodicity of 590 nm on the Ti surface. Melo-Fonseca et al [27] utilized the Nd:YAG laser to generate surface texture such as grooves and pillars with width of 60-120 µm on Ti-6Al-4V metallic implants. Chen et al [28] also fabricate periodic micrometre scale grooves with nanometre scale ripples with femtosecond laser irradiation.…”

Section: Introductionmentioning

confidence: 99%

Response of preosteoblasts on micromachined Ti-6Al-4V surface to microstructure dimension

Chen,

Yang,

Xie

et al. 2023

Biomed. Mater.

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The cell incubation depends on the cultured surface, but various machining methods produce different surface topographies, but it has not been clear how it is related to the topographic feature until now. Hence, the machined Ti-6Al-4V surface is characterized for preosteoblasts incubation via different mechanical fabrication. The relationship between surface topography created by various machining methods and cell incubation behaviour was explored. The objective is to control the surface preosteoblasts growth in machining of biological titanium alloy. According to the cell growth kinetic, the cell incubation behaviour was first proposed and modelled in relation to microstructural dimension and culture duration. Then, the topological cultured microstructure surface was fabricated via mechanical fabrication. Finally, the cell initial adhesion and incubation behaviour on microstructured surface was investigated. It is shown that the surface undulation on machined microstructure is conducive to controlling the direction and distribution of cell incubation from cell growth kinetic model. The cell culture can be controlled on the peak with a small undulation, while it is concentred on the sidewall with a high aspect ratio. Increasing the aspect ratio extends cell growth, while low aspect ratio promotes initial cell adhesion and growth rate. Within the optimal cultured duration, the microstructured surface is more favourable for cell survival, and the cell growth keep positive beyond critical aspect ratio. As a result, the cell adhesion ability is topologically controlled to 5.4 times higher and the growth rate can be improved by 101.7% on milled microgrooved surface. It may be applied to the rapid production of biomedical Ti-6Al-4V implant.

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“…Laser processing has become popular for marking, texturing, welding, and processing different types of materials, including metals and nonmetals [2], [3].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Laser Marking and Texturing of Titanium Gr 2 With Fiber Laser

Lapa,

Adijāns,

Yankov

et al. 2023

ETR

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Titanium Gr 2 is widely used in engineering and medicine due to its excellent mechanical and corrosion-resistant properties. Laser marking is a crucial process for many applications that require high-contrast, durable markings. In this study, we used a Rofin PowerLine F 20 Varia fiber laser to mark titanium Gr 2 with a 6x6 matrix of 5x5 mm squares. We varied the speed (100-1100 mm/s), power (8-18 W), and frequency (100 and 500 kHz) of the laser marking process to investigate their effects on the surface roughness and contrast of the markings. We analyzed the markings using a laser scanning microscope and Adobe Photoshop software. Our results show that the contrast and roughness of the markings were influenced by the frequency, scanning speed, and power. High marking speeds produced lighter markings, while low marking speeds produced darker markings. We also found that the surface roughness increased with higher frequency and powers. Our findings provide valuable insights into the optimal laser marking parameters for titanium Gr 2, which can enhance its performance and durability in various applications.

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Experimental analysis and predictive modelling of Ti6Al4V laser surface texturing for biomedical applications

Cited by 5 publications

References 46 publications

Influence of Hybrid Surface Modification on Biocompatibility and Physicochemical Properties of Ti-6Al-4V ELI Titanium

Influence of Hybrid Surface Modification on Biocompatibility and Physicochemical Properties of Ti-6Al-4V ELI Titanium

Response of preosteoblasts on micromachined Ti-6Al-4V surface to microstructure dimension

Investigation of Laser Marking and Texturing of Titanium Gr 2 With Fiber Laser

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