In this review journal, biotechnology is viewed in a comprehensive context: a multidisciplinary field in which biological systems are developed and/or used for the provision of commercial goods or services. Biotechnology Advances is devoted to all areas of biotechnology including relevant aspects of its disciplinary underpinnings in biology, chemistry and engineering. The primary purpose is to provide regular, rapid but authoritative reviews of important advances in this field for students, researchers, managers and others in industry, government and academia. A timely series of research review papers, patent critiques and summaries of special government reports on the principles and practices of biotechnology are covered. Occasionally, special issues will be published as proceedings of appropriate conferences and symposia. Organizers of such meetings should contact the Editors for further details.