Optothermal MicrofluidicsFranz M. WeinertDissertationMunich 2009Optothermal MicrofluidicsFranz M. WeinertDissertationsubmitted byFranz Michael WeinertfromMunichWritten at theLudwig-Maximilians-Universität MünchenSystems BiophysicsatProf. Dr. Dieter BraunMunich 2009First referee: Prof. Dr. Dieter BraunSecond referee: Prof. Dr. Joachim RädlerDate of the defense: July 21st, 2009 3Table of ContentsI. Summary..........................................................................................................................4II. Light Driven Microfluidics..............................................................................................5Basic Priciple...................................................................................................................5Finite Element Simulations and Theory..........................................................................6Microfluidics using Gels..................................................................................................9Light Driven Microfluidics in Ice..................................................................................10III. Slip Flow in Thermophoresis.........................................................................................13Thermophoresis.............................................................................................................13Observation of Slip Flow..........................................................