Synopses & Reviews
Synopsis
Chapter 1. Introduction (Revised)
1.1. Introduction
1.2. Biodiversity
1.3. Lessons from Nature
1.4. Golden Ratio and Fibonacci Numbers
1.5. Biomimetics in Art and Architecture - Bioarchitecture1.6. Industrial Significance
1.7. Research Objective and Approach
1.8. Organization of the Book
Chapter 2. Roughness-Induced Superliquiphilic/phobic Surfaces: Lessons from Nature (Revised)
2.1. Introduction2.2. Wetting States
2.3. Applications
2.4. Natural Superhydrophobic, Self-Cleaning, Low Adhesion/Drag Reduction Surfaces with Antifouling
2.5. Natural Superhydrophobic and High Adhesion Surfaces
2.6. Natural Superoleophobic Self-Cleaning and Low Drag Surfaces with Antifouling
2.7. Closure
Chapter 3. Modeling of Contact Angle for a Liquid in Contact with a Rough Surface for Various Wetting Regimes (Revised)
3.1. Introduction
3.2. Contact Angle Definition
3.3. Homogenous and Heterogeneous Interfaces and the Wenzel, Cassie-Baxter and Cassie Equations3.3.1. Limitations of the Wenzel and Cassie-Baxter Equations
3.3.2. Range of Applicability of the Wenzel and Cassie-Baxter Equations
3.4. Contact Angle Hysteresis
3.5. Stability of a Composite Interface and Role of Hierarchical Structure with Convex Surfaces
3.6. The Cassie-Baxter and Wenzel Wetting Regime Transition
3.7. Closure
Chapter 4. Lotus Effect Surfaces in Nature (Revised)
4.1. Introduction
4.2. Plant Leaves
4.3. Characterization of Superhydrophobic and Hydrophilic Leaf Surfaces
4.3.1. Experimental Techniques
4.32. SEM Micrographs
4.3.3. Contact Angle Measurements
4.3.4. Surface Characterization Using an Optical Profiler4.3.5. Surface Characterization, Adhesion, and Friction Using an AFM
4.3.6. Role of the Hierarchical Roughness
4.3.7. Summary
4.4. Various Self-cleaning Approaches
4.4.1. Comparison between Superhydrophobic and Superhydrophilic Surface Approaches for Self-cleaning
4.4.2. Summary
4.5. Closure
Chapter 5. Fabrication Techniques used for Superliquiphilic/phobic Structures (Revised)5.1. Introduction
5.2. Roughening to Create One-Level Structure
5.3. Coatings to Create One-Level Structures
5.4. Methods to Create Two-Level (Hierarchical) Structures
5.5. Etching Techniques for Attachment of Coatings
5.6. Closure
Chapter 6. Strategies of Micro-, Nano- and Hierarchically Structured Lotus-like Surfaces (Revised)
6.1. Introduction
6.2. Experimental Techniques
6.2.1. Contact Angle, Surface Roughness, and Adhesion
6.2.2. Droplet Evaporation Studies
6.2.3. Bouncing Droplet Studies6.2.4. Vibrating Droplet Studies
6.2.5. Microdroplet Condensation and Evaporation Studies using ESEM
6.2.6. Generation of Submicron Droplets
6.3. Micro- and Nanopatterned Polymers
6.3.1. Contact Angle
6.3.2. Effect of Submicron Droplet on Contact Angle
6.3.3. Adhesive Force
6.3.4. Summary
6.4. Micropatterned Si Surfaces
6.4.1. Cassie-Baxter and Wenzel Transition Criteria
6.4.2. Effect
Synopsis
This book presents an overview of the general field of biomimetics and biologically inspired, hierarchically structured surfaces. It deals with various examples of biomimetics, which include surfaces with roughness-induced super-phobicity/philicity, self-cleaning, antifouling, low drag, low/high/reversible adhesion, drag reduction in fluid flow, reversible adhesion, surfaces with high hardness and mechanical toughness, vivid colors produced structurally without color pigments, self-healing, water harvesting and purification, and insect locomotion and stinging. The focus in the book is on the Lotus Effect, Salvinia Effect, Rose Petal Effect, Superoleophobic/philic Surfaces, Shark Skin and Skimmer Bird Effect, Rice Leaf and Butterfly Wing Effect, Gecko Adhesion, Insects Locomotion and Stinging, Self-healing Materials, Nacre, Structural Coloration, and Nanofabrication. This is the first book of this kind on bioinspired surfaces, and the third edition represents a significant expansion from the previous two editions.