5 Biotribology of articular cartilage
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Abstract
Articular cartilagearticular cartilage (AC), a specialized connective tissue, is crucial for the optimal functioning of diarthrodial joints. The distinctive composition of AC, including collagen fibers, proteoglycans, and chondrocytes, provides the structural and functional integrity required to withstand repetitive mechanical loads and enable near-frictionless joint movement. The organized configuration of its extracellular matrix and significant water content provides effective load distribution and shock absorption, maintaining joint integrity during dynamic activities. The tribological properties of AC, including its low coefficient of friction and wear resistance, are crucial to its functionality. These characteristics emerge from complex interactions between the solid and fluid phases of the tissue, with mechanisms including fluid pressurization and border lubrication being significant. The synergistic impact of components like hyaluronan and superficial zone protein in synovial fluid ensures extended lubrication under various movement and stress circumstances. Pathological disorders, such as osteoarthritis, can compromise the integrity of AC by disrupting its structural and mechanical balance. This deterioration leads to increased friction, surface damage, and joint impairment, significantly affecting mobility and quality of life. This chapter analyses the structure and function of AC, the critical tribological mechanisms that regulate its performance, and the pathological conditions that affect its tribology. This chapter aims to improve therapeutic methods and develop tissue-engineered solutions that replicate the intrinsic properties of AC through understanding these components.
Abstract
Articular cartilagearticular cartilage (AC), a specialized connective tissue, is crucial for the optimal functioning of diarthrodial joints. The distinctive composition of AC, including collagen fibers, proteoglycans, and chondrocytes, provides the structural and functional integrity required to withstand repetitive mechanical loads and enable near-frictionless joint movement. The organized configuration of its extracellular matrix and significant water content provides effective load distribution and shock absorption, maintaining joint integrity during dynamic activities. The tribological properties of AC, including its low coefficient of friction and wear resistance, are crucial to its functionality. These characteristics emerge from complex interactions between the solid and fluid phases of the tissue, with mechanisms including fluid pressurization and border lubrication being significant. The synergistic impact of components like hyaluronan and superficial zone protein in synovial fluid ensures extended lubrication under various movement and stress circumstances. Pathological disorders, such as osteoarthritis, can compromise the integrity of AC by disrupting its structural and mechanical balance. This deterioration leads to increased friction, surface damage, and joint impairment, significantly affecting mobility and quality of life. This chapter analyses the structure and function of AC, the critical tribological mechanisms that regulate its performance, and the pathological conditions that affect its tribology. This chapter aims to improve therapeutic methods and develop tissue-engineered solutions that replicate the intrinsic properties of AC through understanding these components.
Chapters in this book
- Frontmatter I
- Preface V
- Contents VII
- List of authors IX
- 1 Introduction to biotribology 1
- 2 Fundamentals of biological surfaces 15
- 3 Friction and wear mechanisms in biological systems 51
- 4 Lubrication in biological systems 105
- 5 Biotribology of articular cartilage 121
- 6 Lubrication in biological systems 147
- 7 Soft tissue biotribology 169
- 8 Biotribology of implantable medical devices 189
- 9 Biomaterials and surface modifications 209
- 10 Nanotribology at biological interfaces 237
- 11 Clinical applications of biotribology 255
- 12 Experimental techniques in biotribology 273
- 13 Exploring the nanotribology: characterization, friction, and wear mechanisms at biological interfaces with implications for biomedicine and biotechnology 291
- 14 Future perspectives and challenges 315
- 15 Conclusion and summary related to biotribology 321
- Index 329
- Green Tribology and Tribochemistry
Chapters in this book
- Frontmatter I
- Preface V
- Contents VII
- List of authors IX
- 1 Introduction to biotribology 1
- 2 Fundamentals of biological surfaces 15
- 3 Friction and wear mechanisms in biological systems 51
- 4 Lubrication in biological systems 105
- 5 Biotribology of articular cartilage 121
- 6 Lubrication in biological systems 147
- 7 Soft tissue biotribology 169
- 8 Biotribology of implantable medical devices 189
- 9 Biomaterials and surface modifications 209
- 10 Nanotribology at biological interfaces 237
- 11 Clinical applications of biotribology 255
- 12 Experimental techniques in biotribology 273
- 13 Exploring the nanotribology: characterization, friction, and wear mechanisms at biological interfaces with implications for biomedicine and biotechnology 291
- 14 Future perspectives and challenges 315
- 15 Conclusion and summary related to biotribology 321
- Index 329
- Green Tribology and Tribochemistry
