000K utf8 1100 $c2013 1500 eng 2050 urn:nbn:de:gbv:8-diss-136092 3000 Fischer, Matthias 4000 Marine biofilm formation dynamics – from sensor development to fieldapplications$hChristian-Albrechts-Universität zu Kiel [Fischer, Matthias] 4030 Kiel$nChristian-Albrechts-Universität zu Kiel 4209 In this thesis, an optical fiber-based biofilm sensor has been developed in order to dynamically detect biofilm formation of bacteria and unicellular microorganisms in their natural marine environment. The device is based on the detection of natural fluorescence utilizing the intrinsic amino acid tryptophan of microorganisms constituting the biofilm. Promising sensor head geometries were modeled and optimized in terms of the spatial arrangement of the entire optical system and of the light emission and collection characteristics. In field experiments, biofilm formation dynamics has been quasi-continuously monitored by exposing the sensor to Baltic Sea and Pacific Ocean waters over a period of several weeks. 4950 https://nbn-resolving.org/urn:nbn:de:gbv:8-diss-136092$xR$3Volltext$534 4961 https://macau.uni-kiel.de/receive/diss_mods_00013609 5051 500 5550 Biofilm 5550 Fluorescence 5550 Sensor