Scientists have developed a new process to structure surfaces and to apply or detach functional molecules. They use UV light for the formation or breaking of so-called disulfide bridges, i.e. bonds of sulfur atoms. Both photodynamic reactions allow for a temporally and spatially controlled and reversible modification of the surface and, hence, can be used to produce functional interfaces.
from Engineering and Construction News – ScienceDaily https://www.sciencedaily.com/releases/2017/01/170116091638.htm
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