Abstract: The planar optical structure forms an evanescent-field measuring platform. A body is made from the thermoplastic plastic with a three-dimensionally structured surface, wherein molding is performed directly from a master made of glass coated with metal oxide, without deposition of further coatings on a surface of the master. The planar optical structure forming an evanescent-field measuring platform has a first essentially optically transparent, waveguiding layer (a) with a refractive index n1 and a second essentially optical transparent layer (b) with refractive index n2, where n1>n2, in a case of an embodiment of a planar optical film waveguide, or a metal layer (a?) and a second layer (b), in a case of an embodiment for generating a surface plasmon resonance, wherein the second layer (b) includes a material from a group of cyclo-olefin polymers and cyclo-olefin copolymers.

Abstract: The present invention relates to a method for manufacture a body from a thermoplastic plastic with a three-dimensionally structured surface, wherein molding is performed directly from a master made of glass coated with metal oxide, without deposition of further coatings on a surface of the master. The invention also relates to bodies manufactured with this method from a thermoplastic featuring a three-dimensionally structured surface, as well as to planar optical structures likewise manufactured with this method for generating evanescent-field measuring platforms and to a use thereof.

Abstract: The present invention relates to a method for manufacture a body from a thermoplastic plastic with a three-dimensionally structured surface, wherein molding is performed directly from a master made of glass coated with metal oxide, without deposition of further coatings on a surface of the master. The invention also relates to bodies manufactured with this method from a thermoplastic featuring a three-dimensionally structured surface, as well as to planar optical structures likewise manufactured with this method for generating evanescent-field measuring platforms and to a use thereof.

Abstract: In a method of joining two workpieces (10, 16) without extraneous materials to produce a workpiece 25 which is joined over a joining area (24) which is formed by two fully adjoining surfaces (13, 13?) of the two workpieces (10, 16), with the first workpiece (16) being of plastic and the second workpiece (10) being of a material different from plastic, a strong bond is achieved even when the coefficients of thermal expansion of the workpieces are different by activating at least the surface (13?) of the first workpiece (16) by irradiation with high-energy radiation in a first step, bringing the surfaces (13, 13?) of the workpieces (10, 16) into contact in a second step and pressing the two workpieces (10, 16) against one another at room temperature, in particular at a temperature of from 15° C. to 30° C., to join them at the surfaces (13, 13?).

Abstract: Process for producing a tool insert for injection molding a microstructured part fabricated of a synthetic material, a metal or a ceramic material and which comprises an arrangement of microchannels and which further comprises an arrangement of through-going orifices extending in a substantially perpendicular manner with respect to the outer surface of the part.

Abstract: A process for producing microstructured tool insert for injection molding a part, the part being fabricated of a synthetic material, a metal or a ceramic material and including an arrangement of microstructures which are formed on an outer surface of the part and have two different predetermined depths.

Abstract: Process for producing a tool insert for injection molding a part which is produced from a synthetic material, a metal or a ceramic material and which comprises an arrangement of microstructures which are formed on an outer surface of the part and have a predetermined depth.