Aqueous lubrication : natural and biomimetic approaches / edited by Nicholas Spencer ; Rhaimie Wahap, in-house editor.

Format:

Book

Contributor:

Spencer, Nicholas D., editor of compilation.

Rhaimie Wahap, editor.

Series:

IISc research monograph series ; Volume 3.

IISc Research Monograph Series ; Volume 3

Language:

English

Subjects (All):

Surface chemistry.

Glycoproteins.

Biomimetics.

Tribology.

Lubrication and lubricants.

Physical Description:

1 online resource (285 p.)

Place of Publication:

Singapore : World Scientific : IISc Press, 2014.

Language Note:

English

Summary:

Man lubricates mostly with oil. Nature lubricates exclusively with water. Pure water is a poor lubricant, but the addition of proteins, especially glycoproteins, can modify surfaces to make them far more lubricating at slow speeds. Understanding how nature does this, and the physical structures involved, is not only important for the understanding of diseases such as osteoarthritis, but also essential for the successful application of articulating implants, such as hips and knees, as well as the development of medical devices such as catheters and contact lenses. A host of important applicatio

Contents:

Preface; Contents; Chapter 1. Tribology of Natural Articular Joints; 1.1 Articular Joints; 1.2 The Structure of Natural Articular Cartilage; 1.3 The Surface of Cartilage; 1.4 Friction and Wear of Natural Cartilage; 1.5 Lubrication Studies with Artificial Surfaces; 1.6 Lubrication Theories; 1.6.1. Fluid-film lubrication; 1.6.2. Hyaluronan; 1.6.3. Phospholipids; 1.6.4. Lubricin; 1.7 Conclusions; References; Chapter 2. Sticky and Slippery: Interfacial Forces of Mucin and Mucus Gels; 2.1 Introduction; 2.2 Molecular Mucins; 2.2.1. Repulsion; 2.2.2. Adhesion; 2.2.3. Lubrication

2.3 Mucus and Mucosa2.3.1. Saliva and lingual mucosa; 2.3.2. Gastroinestinal tract and capsule endoscopy; 2.3.3. Other mucus and mucosa; 2.4 Summary and Outlook; 2.5 Acknowledgements; References; Chapter 3. Aqueous Lubrication and Food Emulsions; 3.1 Introduction; 3.2 Emulsion Lubrication in Engineering; 3.2.1. Friction and film thickness in rolling contacts; 3.2.2. General model of emulsion lubrication; 3.2.3. Surface properties; 3.2.3.1. Wetting, displacement energy and work of adhesion; 3.2.3.2. Surfactant self assembly at surfaces

3.3 Emulsion Lubrication in Soft-Tribology and Food Applications3.3.1. Oral tribology; 3.3.2. Emulsions in soft tribological contacts; 3.3.2.1. Viscosity ratio; 3.3.2.2. Non-ionic-surfactant-stabilised food emulsions; 3.3.2.3. Protein-stabilised food emulsions; 3.3.3. Considering rheology; 3.4 Outlook for Emulsion and Food Emulsion Lubrication; Acknowledgements; References; Chapter 4. Aqueous Lubrication in Cosmetics; 4.1 Introduction. The importance of aqueous lubrication in Cosmetic Science; 4.2 The Cosmetic Substrate; 4.2.1. Hair; 4.2.2. The cortex; 4.2.3. The cuticle

4.2.3.1. The structure4.2.3.2. Function and importance of the cuticle; 4.3 The Effect of water on hair structure; 4.4 Cosmetic Tribology. Lubrication Mechanism; 4.4.1. Fiber - fiber interaction; 4.4.2. Hair tribology; 4.4.3. The effect of water on hair tribology: A bad lubricant; 4.4.4. Lubrication mechanisms of polymers and surfactants; 4.4.4.1. Nano-tribology approach; 4.4.4.2. Adsorption mechanisms; 4.5 Lubrication evaluation; 4.5.1. From the material properties to the performance measurement; 4.5.2. Evaluation tests: direct and indirect measurements -from micro to macro

4.5.2.1. Material characterization at the single-hair scale4.5.2.2. From the hair swatch to the head: cosmetic performance; 4.5.3. From intrinsic to functional properties; 4.6 Hair Care Products: Ingredients and Formulation; 4.6.1. Raw materials; 4.6.1.1. Ingredients: Cationic surfactants; 4.6.1.2. Lipophilic conditioners; 4.6.1.3. Cationic polyelectrolytes; 4.6.1.4. Silicones; 4.6.2. Conditioning agents and their formulation; 4.6.2.1. Cleansing base; 4.6.2.2. Conditioning agents; 4.6.2.3. Other additives; 4.6.2.4. Examples of hair-care formulations; References

Chapter 5. Hydrogel Friction and Lubrication

Notes:

Description based upon print version of record.

Includes bibliographical references at the end of each chapters and index.

Description based on print version record.

ISBN:

981-4313-77-7