After completing his MSc in organic chemistry in 1994, he received his PhD in medicinal chemistry in 1998 under the supervision of Prof. Rob Liskamp at Utrecht University. This was followed by a post-doctoral position in Cambridge (UK) in the biotechnology group of Prof. Chris Lowe until 2000. After a year’s stay in the supramolecular chemistry group of Prof. Bert Meijer, he was appointed in 2001 at the Radboud University Nijmegen in the bio-organic chemistry group where he has taken an associate position since 2006. His research revolves around peptide-based materials, operating at the interface of chemistry, biology and physics, in order to develop smart materials and targeted drug delivery systems. Current topics are cell penetrating peptides, peptide based hydrogels, prostate cancer theranostics and peptide based vaccines.