Photo lubrication: Radiation-induced, reversible and irreversible modification of friction and adhesion

Funded by the Baden-Württemberg Stiftung gGmbH, KIT (Karlsruhe Institute of Technology) and Ulm University scientists have developed a procedure that enables the targeted modification of surfaces' friction and adhesion properties through irradiation with light. Depending on the application the modification may be irreversible, i. e. properties are adjusted once-only, or reversible, i. e. facilitating a switch between the minimum and maximum coefficient of friction in a selective and continuous manner. Therefore, the new technique opens up new opportunities for photo-activatable and photo-switchable applications even in the field of micro and nano systems technologies.

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