Abstract: In one aspect, the invention provides an optical sensor comprising a flexible substrate and an optical element being positioned on the substrate. The flexible substrate comprises deformations affecting the optical element and the deformations are provided in a substrate deformation zone at least partly surrounding the optical element. It is an object of the present invention to provide an optical sensor configuration compatible with roll-to-roll manufacturing.

Abstract: The present invention relates to a process of nano fabrication based on nucleated SAM growth, to patterned substrates prepared thereby, to a nano wire or grid of nanowires prepared thereby and to electronic devices including the same. In particular, there is provided a process which comprises applying a first SAM-forming molecular species to a first surface region of the substrate surface, so as to provide a first SAM defining a scaffold pattern on the first surface region; and applying a second SAM-forming molecular species to at least a second surface region of said substrate surface which is not covered by the first SAM, whereby a second replica SAM comprising the second SAM-forming molecular species selectively forms on substrate surface adjacent to at least one edge of said first SAM.

Abstract: A gold layer (20) is patterned with a gold oxide mask (30), which mask is patterned with an acid, preferably with microcontactprinting. The gold oxide mask (30) is stable in alkalic etch solutions for the gold layer (20). The gold oxide mask (30) may be maintained to create a reexposable gold pad (20).