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Published on: April 28, 2023
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Engineering Antioxidant Surfaces for Titanium-Based Metallic Biomaterials.
Jithin Vishnu1, Praveenkumar Kesavan2, Balakrishnan Shankar1
1Department of Mechanical Engineering, Amrita Vishwa Vidyapeetham, Amritapuri Campus, Clappana 690525, India.
Journal of Functional Biomaterials
|July 28, 2023
Summary
Orthopedic implants made of titanium can cause inflammation by increasing reactive oxygen species (ROS). Surface modifications are explored to create antioxidant titanium surfaces, improving implant success rates.
Area of Science:
- Biomaterials Science
- Orthopedic Surgery
- Materials Engineering
Background:
- Prolonged inflammation from orthopedic metallic implants, particularly titanium alloys, can lead to aseptic loosening and failure.
- Increased reactive oxygen species (ROS) activity in conditions like osteoporosis and implant corrosion exacerbates oxidative stress, hindering healing and bone remodeling.
- Titanium implants can inherently increase ROS production, negatively impacting the healing cascade and bone regeneration.
Purpose of the Study:
- To review ROS generation mechanisms associated with titanium-based biomaterials.
- To explore surface modification strategies for enhancing the antioxidant properties of titanium surfaces.
- To highlight the importance of considering ROS generation and oxidative stress in orthopedic implant design and surface engineering.
Main Methods:
- Literature review of ROS generation in titanium implants.
- Analysis of ROS metabolism pathways including superoxide anion, hydroxyl radical, and hydrogen peroxide formation.
- Overview of organic and inorganic surface coatings for antioxidant functionalities.
Main Results:
- Titanium and its alloys are implicated in elevated ROS production, contributing to peri-implant oxidative stress.
- Various surface modification techniques, utilizing organic and inorganic materials, show promise in developing antioxidant titanium surfaces.
- Understanding ROS metabolism is crucial for mitigating adverse biological responses to metallic implants.
Conclusions:
- Addressing ROS generation and oxidative stress is critical for improving the clinical success of orthopedic implants.
- Surface engineering of titanium-based biomaterials with antioxidant properties is a promising strategy to enhance biocompatibility and osseointegration.
- Future research should focus on developing effective antioxidant surface modifications to reduce implant-associated inflammation and failure.
