@misc{MuellerTorgerAllertzetal., author = {M{\"u}ller, Felix and Torger, Bernhard and Allertz, Peter J. and J{\"a}hnichen, Klaus and Keßler, Stefan and M{\"u}ller, Martin and Simon, Frank and Salchert, Katrin and M{\"a}urer, Haike and Pospiech, Doris}, title = {Multifunctional crosslinkable itaconic acid copolymers for enzyme immobilization}, series = {European Polymer Journal}, volume = {102}, journal = {European Polymer Journal}, doi = {10.1016/j.eurpolymj.2018.03.014}, pages = {47 -- 55}, abstract = {UV-Crosslinkable itaconic copolymers are developed to provide new multifunctional materials for coatings which combine crosslinkable functionalities and the possibility to immobilize enzymes. The polymer-immobilized enzymes were used for water treatment to decompose persistent organic molecules. Introduction of suitable comonomers allows tailoring the mechanical and chemical properties for special applications. Copolymers containing MMA and itaconic anhydride were chosen because of the formation of long-term stable anhydride functionalities. These anhydride functionalities are employed to attach enzymes covalently. 4-Benzoylphenyl methacrylate is used as comonomer for UV-initiated crosslinking. Terpolymers are successfully obtained by radical copolymerization in solution. The copolymers are compared to poly(ethylene-alt-maleic anhydride) [P(EMA)] often used with respect to enzyme immobilization, activity and hydrolytic stability. The hydrolysis stability of the copolymers against water is studied by ATR-FTIR spectroscopy. Thin films are prepared on glass substrates in a layer-by-layer procedure by spin-coating. The layer formation is monitored by ATR-FTIR spectroscopy. UV-crosslinking of the copolymer films is performed taking the optimal irradiation dose that avoids polymer degradation. ATR-FTIR spectroscopy verifies the coupling reaction between amino groups of the enzyme and the anhydride groups on the surface of the crosslinked polymer film. The syringaldazine (4-hydroxy-3,5-dimethoxybenzaldehyde azine) test and 2,2´-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) assay demonstrate that the immobilized enzymes maintain their activities. The functional copolymers showed a significant effect in reduction of persistent organic pollutants in contaminated waste water.}, language = {de} } @misc{KrisponeitFischerEsseretal., author = {Krisponeit, Jon-Olaf and Fischer, Simon and Esser, Sven and Moshnyaga, Vasily and Schmidt, Thomas and Piper, Louis F. J. and Flege, Jan Ingo and Falta, Jens}, title = {The morphology of VO2/TiO2(001): terraces, facets, and cracks}, series = {Scientific Reports}, volume = {10}, journal = {Scientific Reports}, issn = {2045-2322}, doi = {10.1038/s41598-020-78584-9}, pages = {8}, abstract = {Vanadium dioxide (VO2) features a pronounced, thermally-driven metal-to-insulator transition at 340 K. Employing epitaxial stress on rutile TiO2(001) substrates, the transition can be tuned to occur close to room temperature. Striving for applications in oxide-electronic devices, the lateral homogeneity of such samples must be considered as an important prerequisite for efforts towards miniaturization. Moreover, the preparation of smooth surfaces is crucial for vertically stacked devices and, hence, the design of functional interfaces. Here, the surface morphology of VO2/TiO2(001) films was analyzed by low-energy electron microscopy and diffraction as well as scanning probe microscopy. The formation of large terraces could be achieved under temperature-induced annealing, but also the occurrence of facets was observed and characterized. Further, we report on quasi-periodic arrangements of crack defects which evolve due to thermal stress under cooling. While these might impair some applicational endeavours, they may also present crystallographically well-oriented nano-templates of bulk-like properties for advanced approaches.}, language = {en} } @misc{MartienssenSimonSchulze, author = {Martienssen, Marion and Simon, J. and Schulze, R.}, title = {Untersuchungen zum Einsatz von aufbereiteter Kfz-K{\"u}hlerfl{\"u}ssigkeit als organische C-Quelle bei der biologischen Sickerwasserbehandlung}, series = {Korrespondenz Abwasser}, volume = {44}, journal = {Korrespondenz Abwasser}, number = {9}, issn = {0341-1540}, pages = {1622 -- 1627}, language = {de} } @misc{MartienssenSimon, author = {Martienssen, Marion and Simon, J.}, title = {Reinigung von Abwasser aus Emulsionsspaltanlagen durch kombinierten Einsatz von biologischer Behandlung und chemischer Naßoxidation}, series = {Korespondenz Abwasser}, volume = {44}, journal = {Korespondenz Abwasser}, number = {1}, issn = {0341-1540}, pages = {110 -- 114}, language = {de} } @misc{MartienssenSimon, author = {Martienssen, Marion and Simon, J.}, title = {Effect of activated carbon on the biological treatment of oil-water emulsions}, language = {en} } @misc{MartienssenSchulzeSimon, author = {Martienssen, Marion and Schulze, R. and Simon, J.}, title = {Capacities and limits of three different technologies for the biological treatment of leachate from solid waste landfill sites}, language = {en} } @inproceedings{MartienssenSchulzeHeinkeetal., author = {Martienssen, Marion and Schulze, R. and Heinke, M. and Pohl, W. and Simon, J.}, title = {Leistungen und Leistungsgrenzen unterschiedlicher biotechnologischer Verfahren f{\"u}r die Behandlung von Deponiesickerwasser}, series = {11. Jahrestagung der Biotechnologen, N{\"u}rnberg, 24. bis 26. Mai 1993, Kurzfassungen}, booktitle = {11. Jahrestagung der Biotechnologen, N{\"u}rnberg, 24. bis 26. Mai 1993, Kurzfassungen}, publisher = {DECHEMA}, address = {Frankfurt am Main}, pages = {43 -- 44}, language = {de} }