Another focus is the design and fabrication of new surfaces or interfaces that tailor organic compounds and cells to be tested while avoiding contamination on bio chips, detection devices and power generator surfaces. For this purpose, surfaces can be modified with ultra thin polymer coatings via initiated chemical vapor deposition. The gentle nature of this deposition technique allows treatment of delicate surfaces without loss of functionalities of the polymer surface layers. Active surfaces that are interacting with biomolecules will be made biocompatible and cell adhesion will be enhanced with the use of polymer coatings. On the other hand, different polymer chemistries will be explored and surfaces that minimize the attachment of bacteria to extend the device lifetime will be designed. The antibacterial coatings that are developed within this research framework will have the potential to be used in different applications.