Oliver Geschke graduated in chemistry in 1994 from the University of Munster, Germany, where he also wrote his PhD theses. In December 1998 he joined the Department of Micro-and Nanotechnology at the Technical University of Denmark (DTU), Kgs. Lyngby, Denmark. Here, he first worked as an assistant professor on a European project on wastewater analyzers and in 2001 became Associated Professor. Since then he has been heading a research group "Polymeric Enabling Microsystems, POEM" mainly focusing on inexpensive polymer microfluidic systems and sensors. He has three textbooks, about 20 journal papers, some 70 conference proceedings and three patents to h is name. Apart from his teaching duties at DTU, he has taught several national and international courses - mostly on subjects covered in this book. Henning Klank gained h is MSc in physics from Ludwig-Maximilians University,Munich, Germany in 1993 and his PhD in electronics from Massey University, Palmerston North, New Zealand in 1999, where he subsequently worked first as a junior lecturer in electronics and then as an instrumentation scientist for two years. From 2000 to 2006 he was Assistant Professor in the Micro Total Analysis System group at the Technical University of Denmark, before working as a freelancer with his own company and as a consultant to several others. In 2008 Dr. Klank returned to Massey University as a lecturer. His main field of interest is instrumentation with a focus on the three main topics of electronics, optics and vibration damping, while also generally being involved in improving signal-to-noise-ratios. Pieter Telleman received his MSC in biochemistry from the University of Nijmegen,The Netherlands, in 1990 and his PhD in medicine from the University of Amsterdam in 1995. Following a fellowship award from the United States Army Medical Research Institute for Infectious Diseases, Fort Detrick, MD, USA, he joined the Harvard Institutes of Medicine, Boston, MA, and Subsequently assumed fellowship positions in clinical oncology and experimental pathology at Harvard Medical School. he was appointed professor in Bio/Chemical MicroSystems at the Technical University of Denmark in 2001 where he took on the position of the director of the Department of Micro-and nanotechnology two years later. his research focuses on the commercialization of micro-and nanotechnology as well as its application to chemistry and life sciences.