With the development and progress of science and technology, biochemical technology has developed rapidly and is widely used in many fields. Modern biochemical research has developed from the cellular level, subcellular level to the biological macromolecular level, and even studied the relationship between intramolecular structure and function, as well as through the molecular transformation and reconstruction to change biological traits. Therefore, strengthening the research of biochemical frontier technology is of great value to promoting the development of Chinese science and technology and the progress of society. To this end, this book is prepared based on the frontier biochemical technologies and their applications, including biochemical combined remediation technology for organic pollutants in urban river sediment, surface functionalized preparation of fluorescent carbon point and its biochemical applications, in vitro synthesis of amyloid fiber biochemical research, stability constraints S-type biochemical system steady-state optimization, efficient and low consumption biochemical collaborative phosphorus removal technology for low carbon source wastewater, research on biochemical sensors based on GaN field effect transistors, the preparation of nanocellulose composite material and its biomedical application and functionalized dynamic hydrogel chemical design and biomedical application, etc., This book aims to provide certain guidance for relevant researchers.