Dr S Witharana is a University Professor and a Practicing Engineer. An internationally acclaimed expert in Nanomaterials, in particular in the area of Nanocolloids, having over 120 scientific publications and projects to his credit. A Guest Editor, serves in the editorial boards of several international journals, and a regular reviewer for leading scholarly journals. Received his graduate education from Royal Institute of Technology Sweden and University of Leeds UK. Trained at the University of Leeds, Diamond Light Source Oxford, Massachusetts Institute of Technology, and Harvard University, for nanofabrication, instrumentation and experimentation. Has held postdoctoral fellowships from EPSRC UK and Max Planck Society Germany.Dr. MT Napagoda is a University Professor. She obtained her PhD from Friedrich-Schiller-University, Jena, Germany. She received a number awards for her academic excellence including the International Max Planck ResearchSchool (IMPRS) fellowship. She is an expert in the field of natural products chemistry and secured many national and international research grants, travel grants, and research excellence awards. She serves as a manuscript reviewer for several leading journals and a reviewer of research grant applications. Her research interests expand from bioactivity studies of medicinal plants to the application of nanotechnology in herbal medicine and herbal cosmetics. ?