Journal of Bioprocessing & Biotechniques

Clemens Posten

Publications

• Research Article
  The Application of Transparent Glass Sponge for Improvement of Light Distribution in Photobioreactors
  Author(s): Anna Jacobi, Ethel Claudia Bucharsky, Karl Guenter Schell, Peter Habisreuther, Rainer Oberacker, Michael J. Hoffmann, Nikolaos Zarzalis and Clemens PostenAnna Jacobi, Ethel Claudia Bucharsky, Karl Guenter Schell, Peter Habisreuther, Rainer Oberacker, Michael J. Hoffmann, Nikolaos Zarzalis and Clemens Posten
  
   A new concept for improving light dilution and light distribution in photobioreactors by applying transparent, openpored sponges was realized during cultivation experiments. A manufacturing process based on the polymer replica technique was established. A polyurethane template is impregnated with a nanoscaled SiO2 powder suspension (solids loading of 60 wt% at around pH 10) and dried. The green body is prepared by burning-out the polymer at 800°C. Subsequently the sintering of the remaining SiO2 structure to transparent cellular bodies is carried out at 1330°C. Many different factors influence the process. The slurry stabilization (viscosity, zeta-potential, pH) is important to generate a stable and self-supporting SiO2 shell around the template and achieve appropriate green bodies. The sintering temperature determines the transition .. Read More»
  DOI: 10.4172/2155-9821.1000113

  Abstract PDF