Dr. Debashis Roy, a chemical engineer with research interests in bioprocess engineering – both bioreactions as well as bioseparations, earned his BChE, MChE and PhD degrees from Jadavpur University, where he taught at the Chemical Engineering Department for about eight years before joining WBUT. In bioreactions, Dr. Roy has worked on the growth kinetics and population modeling of recombinant cultures, on the kinetics of bacterial protease synthesis in bioreactors and on the kinetics of sequential multienzyme systems, and is presently working on developing novel biofilm reactors for antibiotic synthesis by surface-attached marine actinobacteria. In the area of membrane bioseparations, he has worked on pervaporation and affinity ultrafiltration. Foreign journals in which his work has been published include the Journal of Fermentation & Bioengineering, Biochemical Engineering Journal, Chemical Engineering Journal, Separation & Purification Technology etc. Dr. Roy was Course Coordinator of the UGC Refresher Course: “Integrated Bioreactions–Bioseparations Processes” held at the Chemical Engineering Department, Jadavpur University (in 2001). He has delivered invited lectures at the Department of Biochemical Engg. & Biotechnology, IIT Delhi; the Department of Biotechnology, Ravenshaw College, Cuttack and the Department of Microbiology, Lady Brabourne College, Kolkata. Recently, Dr. Roy worked as a Visiting Scientist at McMaster University, Canada.