Abstract: The present invention relates to a process for producing a microstructured analytical system including providing at least two plastic components, wetting at least one component, aligning the components, pressing and joining the components together and curing an adhesive.

Abstract: The present invention provides a field generating membrane electrode for contact with an electrolyte solution comprising a wetable membrane which is ion permeable under electric field conditions and an electrically conductive material for connection with a source of electrical charges, characterized in that one side of the membrane is in direct contact with the electrolyte solution and the other side of the membrane is in direct contact with the electrically conductive material and a gas receiving volume. The electrode according to the present invention is especially useful for electrokinetic transport, electrokinetic pumping, electrophoretic transport, isotachophoretic transport, separation of ions or electrochemical reaction of ions.

Abstract: The invention relates to a method for linking two adjacent plastic work pieces (2, 3). The inventive method is characterized in that the intended contact zone (K) of at least one of the two work pieces (2) with which the latter adjoins to the other work piece (3) is at least partially subjected to a high-energy radiation to such an extent that the glass transition temperature is reduced in a marginal zone (R). The two work pieces (2, 3) are brought in the desired position relative to each other. For establishing the connection of the two work pieces (2, 3) at least the marginal zone (R) modified by the previous radiation process is heated at least in its surface area to a temperature that is higher than the glass transition temperature of the marginal zone (R) modified by the radiation process but lower than the glass transition temperature of the zones of the work pieces (2, 3) that have not been modified.

Abstract: The invention relates to a method for the connection of components, in particular micro-structured plastic components, whereby the adhesive is first applied to a support film, allowed to harden thereon and subsequently transferred to the micro-structured component The components are finally brought together. Said method avoids the ingress of adhesive into the channel system on applying the adhesive layer to the microstructured component.

Abstract: The invention relates to microstructured, miniaturised, polymer-based analysis systems having integrated optical polymer light waveguides for optical detection methods, and process for the production thereof