In this book, the authors present current research in the study of macromolecular chemistry. Topics include efficient biotechological tools on GM crops and bioinsecticide approaches; structuring polymer composites with chemically active fillers; enrichment of Sauvignon Blanc wine by heat stable wine macromolecules; protein transduction in human cells mediated by arginine-rich cell-penetrating peptides in mixed covalent and non-covalent manners; and cleavage of fibrinopeptides from fibrinogen during fibrin formation.