This book serves to highlight the seamless integration of the sciences leading to sustainable technologies. Chemical engineering is one of the major disciplines catering to the societal needs in the fields of energy, environment and materials. The chapters of this book have been selected to encompass the latest in industrial biotechnology and biochemical engineering principles and applications. The chapters are included here after careful review for content and depth. The book focuses on the relatively new areas of molecular biotechnology and nanotechnology which have a strong impact at the fundamental and process levels in chemical engineering. The book also covers analytical procedures, experimental techniques and process analysis in bioprocessing, bioremediation, green separation methods, and emerging nanoparticle applications. It should be useful to students, academicians, and practitioners alike.