Thanks to their high precision and flexibility, laser processes are particularly suitable for producing and processing medical or biotechnology products. Fraunhofer ILT has established biofunctionalization with laser radiation as one of its key research and development areas. Through photooxidation of polymers or direct photoimmobilization and subsequent wet-chemical modification, anchor groups can be generated in a site-selective manner, for example, for the covalent attachment of (bio)functional molecules such as peptides or proteins to surfaces. In addition, targeted photochemical functionalization can be used to control wetting and cell adhesion properties. Recent developments in this field aim to integrate photochemical modification into additive manufacturing processes such as 3D printing. For this purpose, ILT is investigating both suitable chemical reactions and new beam sources.
The range of services Fraunhofer ILT offers includes contract research on customer-specific tasks, developments in the field of tissue engineering, but also the creation of new functionalities for bioreactors or biosensors.