Hair is a sophisticated bio-based material, whether it is on a human head or part of a mammalian coat. In particular, the role of the proteins in the follicle, integral to hair development, are not well understood. This new book seeks to integrate the latest research in proteomic and morphological studies into a coherent description of fibre development from the follicle to its final mature, keratinized form. To achieve this the book has been divided into three sections. The first describes the keratins, their associated proteins and how they assemble into intermediate filaments in the fibre. The second covers the latest information on the morphological changes that occur from the base of the follicle, through the keratinization process to the mature fibre and the role that proteins play in this. The final section delves into fundamental fibre properties such as crosslinking, thermal and oxidative modifications and how these affect the mature fibre. The editors of this book are internationally recognised for their work in the area of mammalian hair, Jeffrey Plowman for his knowledge of the proteomics of the fibre, Santanu Deb-Choudhury for his work in the area of crosslinking in the fibre and Duane Harland for his understanding of the morphological development of the fibre. Together they have collected material from other international experts: Leopold Eckhart and Florian Ehrlich for their knowledge of the evolution of keratins; Dong Dong Wu and David Irwin for their studies on keratin associated protein evolution; David Parry and Bruce Fraser for their work on keratin and keratin associated protein structure and assembly; John McKinnon for his studies on macrofibril formation; Crisan Popescu for the thermodynamics of keratins; and Jolon Dyer for his oxidative modification studies of keratins. This book provides a comprehensive introduction, and useful reference guide to hair biology and will be of interest to both scientists and technologists.

Human hair is the subject of a remarkably wide range of scientific investigations. Its chemical and physical properties are of importance to the cosmetics industry, forensic scientists and to biomedical researchers. The fifth edition of this book confirms its position as the definitive monograph on the subject. Previous editions were recognized as “concise and thorough” (Journal of the American Chemical Society), “an invaluable resource” (Canadian Forensic Science Society Journal), and “highly recommended” (Textile Research Journal). Chemical and Physical Behavior of Human Hair is a teaching guide and reference volume for cosmetic chemists and other scientists in the hair products industry, academic researchers studying hair and hair growth, textile scientists and forensic specialists. Features of the Fifth Edition: Recent advances in the classification and characterization of the different proteins and genes in IF and keratin associated proteins in human hair are described. The mechanism and incidence of hair growth and loss and hair density vs. age of males & females are described for Asians, Caucasians and Africans in different scalp regions. Details of hair surface lipids and cuticle membranes provide a better understanding of the surface and organization of the CMC and its involvement in stress strain is presented. Recent evidence demonstrates a more bilateral structure in curly hair and a more concentric arrangement of different cortical proteins in straighter hair. SNPs involved in hair form (curl and coarseness) and pigmentation and genes in alopecia and hair abnormalities are described. The latest biosynthetic scheme for hair pigments and structures for these and the different response of red versus brown-black pigments to photodegradation is described. A new method for curvature on 2,400 persons from different countries and groups is used to assign curvature throughout this book. Additional data for age and effects on diameter, ellipticity, elastic modulus, break stress and other parameters are presented with much larger data sets featuring statistical analyses. Hair conditioning, strength, breakage, split ends, flyaway, shine, combing ease, body, style retention, manageability and feel parameters are defined and described. A new section of different life stages by age groups considering collective and individual changes in hair fiber properties with age and how these affect assembly properties.

Acknowledgements xi 1. Recent Trends in the Wool Industry and Some Long-Term Policy Issues 1 R. Richardson STRUCTURE AND FUNCTION OF THE HAIR FOLLICLE 2. Morphogenesis of the Hair Follicle during the Ontogeny of Human Skin 15 KA. Holbrook, C. Fisher, BA. Dale and R. Hartley 3. Specific Keratins and their Associated Proteins as Markers for Hair Follicle Differentiation 37 W.M O'Guin, D. Dhouailly, M. Manabe and T.-T. Sun 4. The Dermal Papilla and Maintenance of Hair Growth 51 R.F. Oliver and CA. B. lahoda 5. Special Biochemical Features of the Hair Follicle 69 G.E. Rogers, E.S. Kuczek, P.J. MacKinnon, R.B. Presland and M.J. Fietz KERATIN PROlEINS 6. Intermediate Filaments: Problems and Perspectives 87 R.D. Goldman and G.N. Dessev 7. Intermediate Filament Associated Protein of Epidermis 97 BA. Dale, KA. Resing, P.V. Haydock, P. Fieckman, C. Fisher and KA. Holbrook 8. Variations in the Proteins of Wool and Hair 117 R.C. Marshall and I.M. Gillespie 9. Protein Chains in Wool and Epidermal Keratin IF: Structural Features and Spatial Arrangement 127 J.F. Conway, R.D.B. Fraser, T.P. MacRae and DA. D. Pany 145 10. Amino Acid Sequences of Wool Keratin IF Proteins L.G. Sparrow, L.M. Dowling, V.Y. Loke and P.M. Strike 11. Structural Features of Keratin Intermediate Filaments 157 P.M. Steinert, D.R. Torchia and J.W.

Human hair is the subject of a wide range of scientific investigations. Its chemical and physical properties are of importance to the cosmetics industry, forensic scientists, and to biomedical researchers. This updated and enlarged fourth edition continues the tradition of its predecessor as being the definitive monograph on the subject. It now contains new information on various topics including: chemical hair damage, the cause of dandruff, skin and eye irritation, hair straightening, and others. Chemical and Physical Behavior of Human Hair is a teaching guide and reference volume for cosmetic chemists and other scientists in the hair products industry, academic researchers studying hair and hair growth, textile scientists, and forensic specialists.

The Wool Handbook: Morphology, Structure, Property and Applications explores the fundamental aspects of wool fibers as well as traditional and novel applications of wool in areas including polymer composites and technical textiles. Apart from textiles and garments, wool has long been used for various diversified applications due to its unique material properties. Wool is inherently fire resistant, antimicrobial, flexible and antibacterial, and as a natural material, it can be used to create environmentally sustainable products. This book explains basic and advanced topics related to wool fibers, from shearing to marketing, drawing on academic and industrial research from a range of subjects. Providing statistics, processing methods, and testing and characterization techniques for wool fiber, this book will help readers to use wool fibers to find new applications and solutions. Provides advanced testing methods to explore the material characteristics of wool Includes the latest industrial methods for physical and chemical processing of wool Presents case studies on how wool fibers have been made into successful bio-based composite and textile products

This book comprises the proceedings of the 12th International Conference on Asia-Pacific Microscopy Conference (APMC12) focusing on emerging opportunities and challenges in the field of materials sciences, life sciences and microscopy techniques. The contents of this volume include papers on aberration corrected TEM & STEM, SEM – FIB, ion beam microscopy, electron diffraction & crystallography, microscopy and imaging associated with bio-nanotechnology, medical applications, host-pathogen interaction, etc. This book will be beneficial to researchers, educators, and practitioners alike.

Welcome to this ‘novice’s guide’. At last a book that explains the real science behind the cosmetics we use. Taking a gentle approach and a guided journey through the different product types, we discover that they are not as superficial as often thought and learn that there is some amazing science behind them. We shall uncover some of the truths behind the myths and point out some interesting facts on our way. Did you know? Vitamin E is the world’s most used cosmetic active ingredient. At just 1mm thick, your amazing skin keeps out just about everything it’s exposed to – including your products! A ‘chemical soup’ of amino acids, urea, mineral salts and organic acids act as ‘water magnets’ in the skin keeping it naturally moisturised. Discovered centuries ago, iron oxides (yes, the same chemicals as rust) are still commonly used inorganic pigments in foundations. A lipstick is a fine balance of waxes, oils and colourants to keep the stick stable and leave an even gloss on your lips.