[1] Univ Stuttgart, Inst Grenzflachenverfahrenstech, Stuttgart, Germany
[2] Fraunhofer Inst Grenzflachen & Bioverfahrenstech, IGB, D-7000 Stuttgart, Germany
[3] Interfak Inst Biochem, IFIB, Tubingen, Germany
[4] Microcollect GmbH, EMC, Tubingen, Germany