TY - GEN A1 - Frank, Martin A1 - Reißland, Torsten A1 - Lurz, Fabian A1 - Völkel, Matthias A1 - Lambrecht, Franziska A1 - Kiefl, Stefan A1 - Ghesquiere, Pol A1 - Ng, Herman Jalli A1 - Kissinger, Dietmar A1 - Weigel, Robert A1 - Kölpin, Alexander T1 - Antenna and Package Design for 61 GHz and 122 GHz Radar Sensors in Embedded Wafer-Level Ball Grid Array Technology T2 - IEEE Transactions on Microwave Theory and Techniques Y1 - 2018 U6 - https://doi.org/10.1109/TMTT.2018.2873368 SN - 0018-9480 SN - 1557-9670 SP - 1 EP - 13 ER - TY - GEN A1 - Müller, Felix A1 - Torger, Bernhard A1 - Allertz, Peter J. A1 - Jähnichen, Klaus A1 - Keßler, Stefan A1 - Müller, Martin A1 - Simon, Frank A1 - Salchert, Katrin A1 - Mäurer, Haike A1 - Pospiech, Doris T1 - Multifunctional crosslinkable itaconic acid copolymers for enzyme immobilization T2 - European Polymer Journal N2 - 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. KW - ATR-FTIR spectroscopy KW - Crosslinking KW - Enzyme-immobilization KW - Itaconc acid KW - Methacrylate copolymer Y1 - 2018 U6 - https://doi.org/10.1016/j.eurpolymj.2018.03.014 VL - 102 SP - 47 EP - 55 ER - TY - CHAP A1 - Frank, Martin A1 - Ghesquiere, Pol A1 - Kiefl, Stefan A1 - Weigel, Robert A1 - Kölpin, Alexander T1 - Design and characterization of antenna arrays in eWLB package for 61 GHz radar applications T2 - IEEE Radio and Wireless Symposium, 14-17 January 2018, Anaheim, California, USA Y1 - 2018 SN - 978-1-5386-0710-7 U6 - https://doi.org/10.1109/RWS.2018.8304933 SP - 14 EP - 17 PB - IEEE CY - Piscataway, NJ ER - TY - GEN A1 - Herzberg, Heidrun A1 - Baudendistel, Ines A1 - Nöst, Stefan A1 - Peters-Klimm, Frank A1 - Scherer, Martin A1 - Blozik, Eva A1 - Joos, Stefanie T1 - Bridging the gap between patients‘ needs and quality indicators: a qualitative study with chronic heart failure patients. T2 - Journal of Patient Preference and Adherence Y1 - 2015 U6 - https://doi.org/10.2147/PPA.S83850 VL - 9 SP - 1397 EP - 1405 ER - TY - CHAP A1 - Lau, Isabella A1 - Frank, Martin A1 - Shi, Kilin A1 - Lurz, Fabian A1 - Talai, Armin A1 - Weigel, Robert A1 - Kölpin, Alexander T1 - An Accurate Free Space Method for Material Characterization in W-Band Using Material Samples with Two Different Thicknesses T2 - Proceedings of the 48th European Microwave Conference, Madrid (Spain), 2018 Y1 - 2018 U6 - https://doi.org/10.23919/EuMC.2018.8541437 SP - 202 EP - 205 ER - TY - CHAP A1 - Frank, Martin A1 - Talai, Armin A1 - Weigel, Robert A1 - Kölpin, Alexander T1 - In-line material characterization sensors operating at 10GHz and 77GHz T2 - 2017 IEEE Asia Pacific Microwave Conference : November 13-16, 2017, Renaissance Kuala Lumpur Hotel : proceedings Y1 - 2017 SN - 978-1-5386-0640-7 U6 - https://doi.org/10.1109/APMC.2017.8251702 PB - IEEE CY - [Piscataway, NJ] ER - TY - CHAP A1 - Drechsler, Martin A1 - Wätzold, Frank ED - Gardner, Sarah M. ED - Ramsden, Stephen J. ED - Hails, Rosemary S. T1 - Ecological-economic modelling for designing cost-effective incentives to conserve farmland biodiversity T2 - Agricultural Resilience. Perspectives from Ecology and Economics Y1 - 2019 SN - 978-1-107-66587-3 SP - 253 EP - 272 PB - Cambridge University Press CY - Cambridge ET - 1. Auflage ER - TY - GEN A1 - Gerling, Charlotte A1 - Wätzold, Frank A1 - Theesfeld, Insa A1 - Drechsler, Martin A1 - Nixdorf, Brigitte A1 - Isselstein, Johannes A1 - Pirscher, Frauke A1 - Rücker, Jacqueline A1 - Sturm, Astrid T1 - Modeling the co-evolution of natural, economic and governance subsystems in integrated agri-ecological systems: Perspectives and challenges T2 - Ecological Complexity Y1 - 2019 U6 - https://doi.org/10.1016/j.ecocom.2019.100792 SN - 1476-945X VL - Volume 40, Part A ER - TY - GEN A1 - Frank, Martin A1 - Lurz, Fabian A1 - Weigel, Robert A1 - Kölpin, Alexander T1 - Compact low-cost substrate integrated waveguide fed antenna for 122 GHz radar applications T2 - International Journal of Microwave and Wireless Technologies Y1 - 2019 U6 - https://doi.org/10.1017/S1759078719000072 SN - 1759-0795 SN - 1759-0787 VL - 11 IS - 4 SP - 1 EP - 5 ER - TY - GEN A1 - Drechsler, Martin A1 - Wätzold, Frank T1 - Biodiversity conservation in a dynamic world may lead to inefficiencies due to lock-in effects and path dependence T2 - Ecological Economics Y1 - 2020 U6 - https://doi.org/10.1016/j.ecolecon.2020.106652 SN - 0921-8009 VL - 173 ER -