Article
Materials Science, Biomaterials
Sumit Ghosh, Sushma Indrakumar, Santanu Ghosh, Vasanth Gopal, Sagar Nilawar, Geetha Manivasagam, Jayanth S. Kesave, Satyam Suwas, Kaushik Chatterjee
Summary: This study investigates the effects of surface mechanical attrition treatment (SMAT) on 316L stainless steel implants fabricated by selective laser melting (SLM). The results show that SMAT can improve the corrosion resistance, wear resistance, and biological performance of the implants in in vitro and in vivo environments.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Review
Biotechnology & Applied Microbiology
Xiaoxuan Lu, Zichen Wu, Kehui Xu, Xiaowei Wang, Shuang Wang, Hua Qiu, Xiangyang Li, Jialong Chen
Summary: Titanium and its alloys are widely used in orthopedic and dental implants due to their stable chemical properties and good biocompatibility. However, issues such as aseptic loosening and peri-implant infection still exist. Recent advancements in surface modification have provided strategies to enhance the bio-function and anti-infection properties of titanium implants, aiming to improve the interaction between these devices and the local biological environment.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Article
Chemistry, Medicinal
Shaheer Maher, Denver Linklater, Hadi Rastin, Pei Le Yap, Elena P. Ivanova, Dusan Losic
Summary: This study presents the engineering of titanium implants with antibacterial properties and prevention of bone cell overgrowth by utilizing additive manufacturing and electrochemical anodization techniques. The implants showed reduced cell attachment and proliferation, as well as strong antibacterial activity against S. aureus and P. aeruginosa. This new approach demonstrates a promising strategy for developing a new generation of short-term implants in paediatrics.
Article
Engineering, Biomedical
Elham Davoodi, Hossein Montazerian, Anooshe Sadat Mirhakimi, Masoud Zhianmanesh, Osezua Ibhadode, Shahriar Imani Shahabad, Reza Esmaeilizadeh, Einollah Sarikhani, Sahar Toorandaz, Shima A. Sarabi, Rohollah Nasiri, Yangzhi Zhu, Javad Kadkhodapour, Bingbing Li, Ali Khademhosseini, Ehsan Toyserkani
Summary: Metal additive manufacturing has revolutionized the design and fabrication of hard tissue substitutes, allowing for personalized implants and improved tissue integration. This review highlights the latest advances in the design and manufacturing of metallic biomaterials through additive manufacturing processes, as well as the potential applications for tissue regeneration.
BIOACTIVE MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Avinash Hariharan, Phil Goldberg, Tobias Gustmann, Emad Maawad, Stefan Pilz, Frederic Schell, Tim Kunze, Christoph Zwahr, Annett Gebert
Summary: This study investigates the additive manufacturing of near beta-type Ti-13Nb-13Zr alloys using the LPBF process and explores the optimization of process parameters and post-processing strategies. The research achieves stable process and high part density, and demonstrates excellent mechanical and corrosion properties. The findings are of great significance for the development of personalized orthopedic implants.
MATERIALS & DESIGN
(2022)
Article
Dentistry, Oral Surgery & Medicine
Francisco Javier Rodriguez-Lozano, Sergio Lopez-Garcia, Sonia Sanchez-Bautista, Javier Perez-Lopez, Ariel J. Raigrodski, Marta Revilla-Leon
Summary: The purpose of this study was to compare the effects of milled and lithography-based AM zirconia on the biological properties of human osteoblasts, as well as to compare their chemical composition differences. The results showed that both types of zirconia had similar cytocompatibility with human osteoblasts, but there were slight differences in their chemical composition.
JOURNAL OF PROSTHETIC DENTISTRY
(2023)
Review
Engineering, Biomedical
Yanhao Hou, Weiguang Wang, Paulo Bartolo
Summary: Bone cancer is a global health problem with increasing clinical and economic burdens. Current treatment methods have limitations, but advanced materials and additive manufacturing offer promising solutions for both treatment and bone regeneration.
BIO-DESIGN AND MANUFACTURING
(2022)
Article
Chemistry, Multidisciplinary
Jin Yao Ho, Kazi Fazle Rabbi, Siavash Khodakarami, Soumyadip Sett, Teck Neng Wong, Kai Choong Leong, William P. King, Nenad Miljkovic
Summary: Metal additive manufacturing (AM) provides unparalleled design freedom for optimized device development, but the use of nonconventional aluminum alloys has made micro/nanostructuring in metal AM challenging. In this study, techniques are developed to investigate the micro/nanostructuring of the most common metal AM material, AlSi10Mg. A surface structuring technique is designed to create unique two-tier nanoscale architectures that show low adhesion, excellent resilience to condensation flooding, and enhanced liquid-vapor phase transition. The study demonstrates that these nanostructures achieve significantly higher heat transfer coefficient compared to conventional condensation methods. The results highlight the potential of AM-enabled nanostructuring for improving droplet confinement and detachment.
Article
Nanoscience & Nanotechnology
Jingqi Zhang, Michael Bermingham, Joseph Otte, Yingang Liu, Matthew Dargusch
Summary: This study demonstrates how to achieve uniform and enhanced tensile ductility by minimizing the in-situ intrinsic heat treatment effect. By adjusting the heating and deposition time, the tensile ductility of Ti-5Al-5Mo-5V-3Cr material was successfully improved without notable variation.
SCRIPTA MATERIALIA
(2023)
Review
Materials Science, Multidisciplinary
Navneet Khanna, Kishan Zadafiya, Tej Patel, Yusuf Kaynak, Rizwan Abdul Rahman Rashid, Ana Vafadar
Summary: Machining nickel and titanium-based superalloy components is expensive, leading to the development of additive manufacturing processes for near-net shape parts to reduce lead time and material waste. The machinability of AMed nickel and titanium workpieces is different from their wrought counterparts, requiring further research on optimized machining parameters and cutting tool performance.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Engineering, Biomedical
H. M. A. Kolken, C. P. de Jonge, T. van der Sloten, A. Fontecha Garcia, B. Pouran, K. Willemsen, H. Weinans, A. . A. . Zadpoor
Summary: The development of shape-morphing implants using permanent lattice deformation shows potential for creating long-lasting orthopedic implants. The use of meta-implants with a deformable porous outer layer improves initial stability and homogeneously stimulates surrounding bone tissue, addressing issues with current treatment options in acetabular revision surgery. Further research should focus on design optimization to improve space-filling behavior and facilitate the implantation process for orthopedic surgeons.
ACTA BIOMATERIALIA
(2021)
Article
Materials Science, Multidisciplinary
C. H. Ng, M. J. Bermingham, L. Yuan, M. S. Dargusch
Summary: This study investigates the formation of beta-flecks in the high strength Ti-3Al-8V-6Cr-4Mo-4Zr alloy and explores the use of grain refiner La2O3 to prevent segregation defects. The results show that the introduction of La2O3 significantly reduces the presence of beta-flecks. Analytical and numerical modelling provide insights into the mechanism of defect reduction through grain refinement.
Article
Optics
T. Thor, A. Prochazkova, F. Prochaska, R. Dolecek, M. Spina, J. Vaclavik, T. Sedlmaier, M. Mulser
Summary: This study presents the method of using additive manufacturing and processing techniques to prepare metal mirrors, including steps such as coating with NiP alloy, obtaining high-quality optical mirror surfaces through SPDT turning and polishing, and removing tool mark periodic structures through polishing. Ultimately, a scratch-free metal mirror surface with surface microroughness below 0.5 nm was achieved through polishing optimization techniques.
Article
Engineering, Manufacturing
Qi Chao, Srikanth Mateti, Murugesan Annasamy, Mohammad Imran, Jithin Joseph, Qiran Cai, Lu Hua Li, Pavel Cizek, Peter D. Hodgson, Ying Chen, Daniel Fabijanic, Wei Xu
Summary: An innovative approach utilizing boron nitride nanotube (BNNT) decorated powders for microstructure refinement of an additively manufactured Ti-6Al-4V alloy resulted in unprecedented grain refinement and over 50% strength enhancement. This mechanism of nanoparticle-mediated nucleation enables a unique texture-weakened structure comprising fine equiaxed grains, creating a pathway for screening effective grain refiners in titanium and other alloy systems.
ADDITIVE MANUFACTURING
(2021)
Article
Engineering, Mechanical
Zhiying Liu, Renkai Li, Daolun Chen, Yu Sun, Bei He, Yu Zou
Summary: In this study, we report the activation of microscale shear bands (MSBs) in an LDED-produced titanium alloy to enhance its tensile ductility. Our results suggest that the nucleation and propagation of MSBs depend on the local shear stress and are influenced by the boundaries between hard and soft domains. Activating MSBs provides a new opportunity to effectively enhance the ductility of LDED-produced titanium alloys.
INTERNATIONAL JOURNAL OF PLASTICITY
(2022)
