Abstract: The invention relates to medical devices and production thereof. The medical device may be a tubular medical device and has a high biocompatibility e.g. for use as implant. The medical tubular device may have a body structure extending from a first end to a second end of the medical tubular device and having a luminal surface and an external surface, wherein the body structure comprises an interpenetrating polymer network (IPN) comprising a host polymer matrix and at least one hydrogel guest polymer domain of a guest polymer, which is interpenetrating the host polymer matrix.

Abstract: A sensor element is disclosed. The sensor element comprises a first element which is nanoporous, and a second element which is nanoporous, the second element enclosing the first element. The surfaces of the nanopores of the first- and second element differ in hydrophilicity, so that the surfaces of the nanopores of one element is generally more hydrophobic while the other is generally more hydrophilic, and hence the sensor element is capable of selectively having the first element filled with a fluid. The sensor element is capable of guiding light through the fluid-filled first element and can act as a nanoporous waveguide. The sensor element according to the invention is particularly useful for spectroscopy on fluids.