A review of surface modification of a novel low modulus β-type titanium alloy for biomedical applications

2014 ◽  
Vol 8 (2/3) ◽  
pp. 138 ◽  
Author(s):  
Mitsuo Niinomi ◽  
Masaaki Nakai ◽  
Junko Hieda ◽  
Ken Cho ◽  
Toshihiro Kasuga ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Surface Modification ◽  
Biomedical Applications ◽  
Low Modulus

scholarly journals Surface Modification of Biomedical Titanium Alloy: Micromorphology, Microstructure Evolution and Biomedical Applications

Coatings ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 249 ◽  
Author(s):  
Wei Liu ◽  
Shifeng Liu ◽  
Liqiang Wang
Keyword(s):  
Mechanical Properties ◽  
Titanium Alloy ◽  
Surface Modification ◽  
Microstructure Evolution ◽  
Biomedical Applications ◽  
Cellular Level ◽  
Implant Surface ◽  
Potential Applications ◽  
Biomedical Titanium Alloy ◽  
Increasing Demand

With the increasing demand for bone implant therapy, titanium alloy has been widely used in the biomedical field. However, various potential applications of titanium alloy implants are easily hampered by their biological inertia. In fact, the interaction of the implant with tissue is critical to the success of the implant. Thus, the implant surface is modified before implantation frequently, which can not only improve the mechanical properties of the implant, but also polish up bioactivity and osseoconductivity on a cellular level. This paper aims at reviewing titanium surface modification techniques for biomedical applications. Additionally, several other significant aspects are described in detail in this article, for example, micromorphology, microstructure evolution that determines mechanical properties, as well as a number of issues concerning about practical application of biomedical implants.

Design and Research on Mechanical Properities of New Type Low Modulus Biomedical Metastable β Titanium Alloy

2011 ◽  
Vol 311-313 ◽  
pp. 1667-1672
Author(s):  
Shuang Jin Liu ◽  
Fen Fei Cai ◽  
Chun Xiang Cui ◽  
Xun Yao ◽  
Li Chen Zhao
Keyword(s):  
Tensile Strength ◽  
Titanium Alloy ◽  
Biomedical Applications ◽  
Design Method ◽  
Solution Treatment ◽  
Aging Treatment ◽  
Test Results ◽  
Biomechanical Compatibility ◽  
Low Modulus ◽  
New Type

One new type metastable β-titanium-alloy for biomedical applications Ti-25Nb-2Mo-4Zr (wt %) with lower elastic modulus was designed based on the d-electron alloy design method and prepared in this study. The microstructure and basic mechanical properties of designed alloy were investigated in this paper. The test results show that the Yang’s modulus is 65GPa and the tensile strength is 863MPa of designed alloy after solution treatment at 700°C for 0.5 h; the Yang’s modulus is 68GPa and the tensile strength is 1032MPa for the designed alloy after aging treatment at 500°C for 2 h. The designed alloy with lower Yang’s modulus is expected to have good prospects for implant biomaterials for its excellent biomechanical compatibility.

A novel low-modulus titanium alloy for biomedical applications: A comparison between selective laser melting and metal injection moulding

2021 ◽  
Vol 812 ◽  
pp. 141081
Author(s):  
Chanun Suwanpreecha ◽  
Enrique Alabort ◽  
Yuanbo T. Tang ◽  
Chinnapat Panwisawas ◽  
Roger C. Reed ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Selective Laser Melting ◽  
Injection Moulding ◽  
Biomedical Applications ◽  
Laser Melting ◽  
Metal Injection Moulding ◽  
Low Modulus

Biofunctional Surface Layer and its Bonding Strength in Low Modulus β-Type Titanium Alloy for Biomedical Applications

2014 ◽  
Vol 783-786 ◽  
pp. 78-84
Author(s):  
Mitsuo Niinomi ◽  
Masaaki Nakai ◽  
Junko Hieda ◽  
Ken Cho ◽  
Takashi Goto ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Surface Modification ◽  
Soft Tissue ◽  
Titanium Alloys ◽  
Polymer Surface ◽  
Organic Chemical ◽  
Ceramic Surface ◽  
Silane Coupling Agents ◽  
Silane Coupling ◽  
Low Modulus

Recently, low-modulus β-type titanium alloys have been the focus of considerable attention because of their high biocompatibility and their low moduli that make them effective for inhibiting bone atrophy and for enhancing bone remodeling. However, the biofunctinalities of titanium alloys, such as bone conductivity, blood compatibility, and soft tissue compatibility, are poor. Therefore, surface modification techniques such as bioactive ceramic surface modification and blood-and soft-tissue-compatible polymer surface modification are applied to titanium alloys. Hydroxyapatite (HAp) surface modification via metal organic chemical vapor deposition (MOCVD) and segmented polyurethane (SPU) surface modification via silane coupling treatment are effective techniques to add biofunctionalites to titanium alloys. HAp surface modification via MOCVD and SPU surface modification using three kinds of silane coupling agents on a low modulus beta-type titanium alloy, namely, TNTZ, are discussed. Moreover, the bonding strengths of HAp and SPU on the surface of TNTZ, which are important parameters, are also discussed.

Adhesion evaluation of nanostructured coatings on titanium alloy for biomedical applications

2017 ◽  
Author(s):  
Luiz Felipe Reali ◽  
Jianliang Lin ◽  
Ronghua Wei ◽  
Ricardo Torres ◽  
Carlos augusto Henning Laurindo ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Biomedical Applications ◽  
Nanostructured Coatings

scholarly journals Water uptake of various electrospun nonwovens

2020 ◽  
Vol 6 (3) ◽  
pp. 155-158
Author(s):  
Katharina Wulf ◽  
Volkmar Senz ◽  
Thomas Eickner ◽  
Sabine Illner
Keyword(s):  
Contact Angle ◽  
Surface Modification ◽  
Water Absorption ◽  
Water Uptake ◽  
Biomedical Applications ◽  
High Surface ◽  
Volume Ratio ◽  
Polymer Composition ◽  
Water Wetting ◽  
Morphology Changes

AbstractIn recent years, nanofiber based materials have emerged as especially interesting for several biomedical applications, regarding their high surface to volume ratio. Due to the superficial nano- and microstructuring and the different wettability compared to nonstructured surfaces, the water absorption is an important parameter with respect to the degradation stability, thermomechanic properties and drug release properties, depending on the type of polymer [1]. In this investigation, the water absorption of different non- and plasma modified biostable nanofiber nonwovens based on polyurethane, polyester and polyamide were analysed and compared. Also, the water absorption by specified water wetting, the contact angle and morphology changes were examined. The results show that the water uptake is highly dependent on the surface modification and the polymer composition itself and can therefore be partially changed.

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