This book provides readers with the latest developments in materials science research. Chapter One reports studies using acid leaching, use of microwaves, impregnation, funcionalization, and other possibilities that allow consideration of metakaolin as a good precursor to solid catalysts. Chapter Two discusses supramolecular adhesive complexes of stimuli-responsive polymers. Chapter Three reviews the preparation of biomedical materials from polyacrylonitirle and applications of it in various fields. Chapter Four gives an overview on the recent theoretical and experimental advances concerning plasmonic excitations in thin slabs of topological insulators. Chapter Five focuses on atmospheric plasmadynamic systems for thermal spray technologies. Chapter Six discusses optical monitoring and control of powder technologies thermal processes.