This book details the synthesis and assembly of polypeptide materials across length scales, i.e. proteins and peptides, their precursors, conjugates, and derivatives. A particular emphasis is made on measurement tools and procedures for material characterization, both physicochemical and functional. Written for the highly successful Methods in Molecular Biology series, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and practical, Polypeptide Materials: Methods and Protocols serves to reflect the inter-disciplinary nature of molecular biology as well as the importance of developing innovative measurement methods to advance this vital area of research.