Gesellschaft zur Förderung von Medizin-,
Bio- und Umwelttechnologien e. V.

Felsbachstraße 7 trenner 07745 Jena
Tel: 03641 366710 trenner Fax: 03641 366777
E-Mail: This email address is being protected from spambots. You need JavaScript enabled to view it. trenner www.gmbu.de

Functional dyes are used nowadays in numerous applications, e.g. in sensors for medical and environmental applicationas fluorescent probes in bioanalytics or as absorber in optical data storage systems. Mostly the challenge is to find the ideal dye for the specific application. In this context spectroscopic characteristics, like the position of absorption or emission bands, extinction coefficients or the fluorescence quantum yield, have to be properly adjusted. Moreover solubilities, purity, aging behaviour or photochemical processes have to be considered. Using spectroscopic methods (VUV / UV / VIS / NIR / IR, steady state and time resolved fluorescence spectroscopy, chromatography) chromophores, extrinsic or intrinsic fluorophores of different origin can be characterized and photochemical processes can be investigated.

In several projects of the GMBU Jena the following topics have been adressed:

  • Comprehensive characterization of heptamethine cyanine dyes to find new structures for NIR fluorescent probes
  • Investigation of photo processes and screening of spectroscopic parameters for optimization of dyes in printing materials
  • Determination of the efficiency of immobilized sensitizers for Photodynamic Therapy
  • Characterization of growth processes and vitality of cyanobacteria
  • Analyzing constitution and aging processes of dyes and electrolytes for dye sensitized solar cells (Grätzel cells)
  • Conditioning of systems with electrodeless UV sources for Vitamin D3 synthesis
  • Chemical actinometry for characterization of efficiency and irradiation homogeneity of newly developed flow-through and planar radiation sources

For more information please contact: This email address is being protected from spambots. You need JavaScript enabled to view it.