Parts | Days | Selection | Search | Updates | Downloads | Help
DS: Fachverband Dünne Schichten
DS 35: Poster I: Application of thin films; Focus session: Sensoric micro and nano-systems; Focus Session: Sustainable photovoltaics with earth abundant materials; Graphen (joint session with TT; MA; HL; DY; O); Ion and electron beam induced processes; Layer properties: electrical, optical, and mechanical properties; Magnetic/organic interfaces, spins in organics and molecular magnetism; Micro- and nanopatterning (jointly with O); Organic electronics and photovoltaics (jointly with CPP, HL, O); Thermoelectric materials
DS 35.24: Poster
Wednesday, April 2, 2014, 17:00–20:00, P1
Laser based integration method of rolled-up nano membranes in polymer based LoC systems — •Tom Enderlein1, Christian Helke1, Stefan M. Harazim2, Jörg Nestler1, Oliver G. Schmidt2, Thomas Otto3, and Thomas Gessner1,3 — 1TU-Chemntiz, Zentrum für Mikrotechnologien, Reichenhainer Str. 70, 09126 Chemnitz, Germany — 2IFW Dresden, Helmholtzstraße 20, 01069 Dresden, Germany — 3Fraunhofer ENAS, Technologie-Campus 3, 09126 Chemnitz, Germany
The functionalities of Lab-on-a-Chip (LoC) systems today still become more and more complex and the degree of integration is further growing. Mostly driven by conventional MEMS technologies, the preparation for example of channels, pumps and valves is mainly realized in silicon and glass, but also in silicones like PDMS. In the case of LoC systems in the field of point of care diagnostics (PoC), those silicon based systems are barely applicable due to the high costs of the substrate materials for the large areas needed for the sample storage, preparation and so on. This is where polymer substrates reveal their advantage for those one-time-only LoC-cartridges and can well be processed by ultra-short pulse laser systems. Besides the laser structuring of channels and reservoirs, polymer welding is as well possible. The here demonstrated new approach shows on the one hand the integration of those functionalized rolled-up sensor elements by laser structured integration channels in the micrometer range. On the other hand this method uses laser micro-welding and the simultaneously melting of the surrounding material of the rolled-up membranes for their fixation.