Strategies to control phenomena at the interface between artificial materials and biological systems are relevant for many fields ranging from biosensing to tissue engineering. The inertness and static character of artificial surfaces contrasts with the dynamic, reversible and evolutionary character of biological processes. This gap can be filled with novel strategies that allow precise and active change of the surface properties by application of ready-available and biological friendly external fields. We develop responsive surfaces for these purposes and study their dynamic properties with different surface sensitive techniques.

1. Photosensitive surfaces with wavelength-selective response
   
2. Dynamic surfaces for cell control
   
3. Phototriggered cell attachment and detachment