A method and a device are provided for removing a turbine bearing or a bearing segment of a preferably stationary turbo engine, having a housing that may preferably be split in half while the housing is closed. A medium with a refractive index n2 is located in the intermediate region. The invention further includes pro-drugs of riluzole useful for the treatment of disease states that can be treated with riluzole through the release of riluzole from a pro-drug agent. A stress-controlled titanium film may be used, for example, as an adhesion layer between a silicon movable structure in an optical MEMS device and a gold layer serving as a reflecting surface. By making the battery front end face come into contact with the stretched ribbon and inserting a battery, a normal loading state in which the ribbon is pushed to the deepest place can be assured.