Effect of Hydrothermal and Vapor Thermal Treatments on Apatite Inductivity of Titanate Nanotubes on Anodized Ti–5Nb–5Mo Surface

Although titanium (Ti) alloys have been widely employed as biomedical materials, they cannot achieve satisfactory osseointegration when implanted in the human body due to their biologically inert nature. Surface modification can enhance both their bioactivity and corrosion resistance. The present st...

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Main Authors: Kuan-Hsiang Hsieh, Hsueh-Chuan Hsu, Shih-Ching Wu, Yi-Cheng Shih, Hsiang-Wei Yang, Wen-Fu Ho
Format: Article
Language:English
Published: MDPI AG 2023-04-01
Series:Nanomaterials
Subjects:
Online Access:https://www.mdpi.com/2079-4991/13/8/1296
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author Kuan-Hsiang Hsieh
Hsueh-Chuan Hsu
Shih-Ching Wu
Yi-Cheng Shih
Hsiang-Wei Yang
Wen-Fu Ho
author_facet Kuan-Hsiang Hsieh
Hsueh-Chuan Hsu
Shih-Ching Wu
Yi-Cheng Shih
Hsiang-Wei Yang
Wen-Fu Ho
author_sort Kuan-Hsiang Hsieh
collection DOAJ
description Although titanium (Ti) alloys have been widely employed as biomedical materials, they cannot achieve satisfactory osseointegration when implanted in the human body due to their biologically inert nature. Surface modification can enhance both their bioactivity and corrosion resistance. The present study employed a Ti–5Nb–5Mo alloy with a metastable α″ phase. This alloy may undergo phase changes after conventional high-temperature heat treatment, which can deteriorate its properties. This study heat-treated the anodized Ti–5Nb–5Mo alloy by using a low-temperature hydrothermal or vapor thermal method to analyze the effects of heat treatment on its apatite induction. The results revealed that the porous nanotube structure on the surface of the alloy was transformed into anatase nanoparticles after hydrothermal or vapor thermal treatment at 150 °C for 6 h. After immersion in simulated body fluid (SBF) for 7 days, the amount of apatite deposited on the surface of the vapor thermal-treated alloy exceeded that on the hydrothermal-treated alloy. Therefore, post-heat treatment of anodized Ti–5Nb–5Mo by using the vapor thermal method can enhance its apatite inductivity without altering its structure.
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spelling doaj.art-4d110b4cf17a475291d88d1722bf27f42023-11-17T20:42:26ZengMDPI AGNanomaterials2079-49912023-04-01138129610.3390/nano13081296Effect of Hydrothermal and Vapor Thermal Treatments on Apatite Inductivity of Titanate Nanotubes on Anodized Ti–5Nb–5Mo SurfaceKuan-Hsiang Hsieh0Hsueh-Chuan Hsu1Shih-Ching Wu2Yi-Cheng Shih3Hsiang-Wei Yang4Wen-Fu Ho5Department of Surgery, Division of Orthopaedics, Zuoying Branch of Kaohsiung Armed Forces General Hospital, Kaohsiung 81342, TaiwanDepartment of Dental Technology and Materials Science, Central Taiwan University of Science and Technology, Taichung 40601, TaiwanDepartment of Dental Technology and Materials Science, Central Taiwan University of Science and Technology, Taichung 40601, TaiwanDepartment of Chemical and Materials Engineering, National University of Kaohsiung, Kaohsiung 81148, TaiwanDepartment of Chemical and Materials Engineering, National University of Kaohsiung, Kaohsiung 81148, TaiwanDepartment of Chemical and Materials Engineering, National University of Kaohsiung, Kaohsiung 81148, TaiwanAlthough titanium (Ti) alloys have been widely employed as biomedical materials, they cannot achieve satisfactory osseointegration when implanted in the human body due to their biologically inert nature. Surface modification can enhance both their bioactivity and corrosion resistance. The present study employed a Ti–5Nb–5Mo alloy with a metastable α″ phase. This alloy may undergo phase changes after conventional high-temperature heat treatment, which can deteriorate its properties. This study heat-treated the anodized Ti–5Nb–5Mo alloy by using a low-temperature hydrothermal or vapor thermal method to analyze the effects of heat treatment on its apatite induction. The results revealed that the porous nanotube structure on the surface of the alloy was transformed into anatase nanoparticles after hydrothermal or vapor thermal treatment at 150 °C for 6 h. After immersion in simulated body fluid (SBF) for 7 days, the amount of apatite deposited on the surface of the vapor thermal-treated alloy exceeded that on the hydrothermal-treated alloy. Therefore, post-heat treatment of anodized Ti–5Nb–5Mo by using the vapor thermal method can enhance its apatite inductivity without altering its structure.https://www.mdpi.com/2079-4991/13/8/1296titanium alloyanodizationhydrothermalvapor thermalapatite induction
spellingShingle Kuan-Hsiang Hsieh
Hsueh-Chuan Hsu
Shih-Ching Wu
Yi-Cheng Shih
Hsiang-Wei Yang
Wen-Fu Ho
Effect of Hydrothermal and Vapor Thermal Treatments on Apatite Inductivity of Titanate Nanotubes on Anodized Ti–5Nb–5Mo Surface
Nanomaterials
titanium alloy
anodization
hydrothermal
vapor thermal
apatite induction
title Effect of Hydrothermal and Vapor Thermal Treatments on Apatite Inductivity of Titanate Nanotubes on Anodized Ti–5Nb–5Mo Surface
title_full Effect of Hydrothermal and Vapor Thermal Treatments on Apatite Inductivity of Titanate Nanotubes on Anodized Ti–5Nb–5Mo Surface
title_fullStr Effect of Hydrothermal and Vapor Thermal Treatments on Apatite Inductivity of Titanate Nanotubes on Anodized Ti–5Nb–5Mo Surface
title_full_unstemmed Effect of Hydrothermal and Vapor Thermal Treatments on Apatite Inductivity of Titanate Nanotubes on Anodized Ti–5Nb–5Mo Surface
title_short Effect of Hydrothermal and Vapor Thermal Treatments on Apatite Inductivity of Titanate Nanotubes on Anodized Ti–5Nb–5Mo Surface
title_sort effect of hydrothermal and vapor thermal treatments on apatite inductivity of titanate nanotubes on anodized ti 5nb 5mo surface
topic titanium alloy
anodization
hydrothermal
vapor thermal
apatite induction
url https://www.mdpi.com/2079-4991/13/8/1296
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