Nature learned long ago how useful proteins are as a diverse set of building blocks to make materials with very diverse properties. Spider webs, egg whites, hair follicles, and skeletal muscles are all largely protein. This book provides a glimpse into both nature's strategies for the design and produc tion of protein-based materials, and how scientists have been able to go beyond the constraints of natural materials to produce synthetic analogs with potentially wider ranges of properties. The work presented is very much the beginning of the story. Only recently has there been much progress in obtaining a molecular understanding of some of nature's com plex materials, and the mimicry or replacement of these by synthetic or genetically engineered variants is a field still in its infancy. Yet this book will serve as a useful introduction for those wishing to get started in what is sure to be an active and productive field throughout the 21st century. The authors represent a wide range of interests and expertise, and the topics chosen are comprehensive. Charles R. Cantor Center for Advanced Biotechnology Boston University Series Preface The properties of materials depend on the nature of the macromolecules, small molecules and inorganic components and the interfaces and interac tions between them. Polymer chemistry and physics, and inorganic phase structure and density are major factors that influence the performance of materials.
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Adams WW adhesion AlaGly alanine amino acid amino acid sequence amorphous applications assembly B-sheet Biol biological Bombyx mori Cappello carboxyl cells characterized Chem coatings cocoon silk coli collagen complex composition concentration containing cross-linked crystal structure developed diffraction domains Dopa dragline silk elastic elastin encoding energy fibroin fibronectin Figure filaments films formic acid function GAGAGS gene monomer gland helical hydrogen bonding hydrophobic hydrophobic folding interactions inverse temperature transition Kaplan DL keratin liquid crystal Macromolecules Magoshi Materials Science matrix mechanical properties mesogens microstructure microtubule modulus molecular weight molecules monomer nucleation organism orientation phase diagram phosphotriesterase pKa shifts polymeric polypeptide processing production proline protein polymers protein-based materials protein-based polymers recombinant regions repeats residues result self-assembly SELP SELP3 silk fibroin silk-like proteins silkworm SLP4 SLPF solid soluble solution solvent specific spider silk spinning stability substrate surface tion Tirrell tissue toughness Urry DW Viney whiskers