TY - CHAP A1 - Belle, Stefan A1 - Scheurich, Steffen A1 - Hellmann, Ralf T1 - Interrogation water content in organic solvents by planar bragg grating sensors T2 - Proceedings SENSOR KW - Bragg-Reflektor KW - Sensor Y1 - 2014 SN - 978-3-9810993-6-2 IS - Vol. II, P3.2 SP - 324 EP - 329 ER - TY - CHAP A1 - Rosenberger, Manuel A1 - Belle, Stefan A1 - Hellmann, Ralf T1 - Optical interrogation of bragg grating sensors using tunable fibre based bandpass filter T2 - Proceedings of the 20st international science conference, Mittweida KW - Bragg-Reflektor KW - Sensor Y1 - 2014 ER - TY - CHAP A1 - Rosenberger, Manuel A1 - Belle, Stefan A1 - Hellmann, Ralf T1 - Detection of biochemical reaction and DNA hybridization using a planar bragg grating sensor T2 - Proceeding SPIE, Vol. 8073, article id: 80730C KW - Bragg-Reflektor KW - Sensor Y1 - 2014 U6 - https://doi.org/10.1117/12.886785 IS - 8073 ER - TY - CHAP A1 - Rosenberger, Manuel A1 - Belle, Stefan A1 - Hellmann, Ralf T1 - Detection of unlabeled DNA hybridization with a planar bragg grating sensor T2 - Proceeding XXV microCAD, International scientific conference, 2011, Section R KW - Bragg-Reflektor KW - Sensor Y1 - 2014 SP - 67 EP - 72 ER - TY - CHAP A1 - Rosenberger, Manuel A1 - Belle, Stefan A1 - Hellmann, Ralf T1 - Optical interrogation of chemical and temperature bragg grating sensors using tunable fiber coupled bandpass filter T2 - Proceeding XXV microCAD, International scientific conference, 2011, Section H KW - Bragg-Reflektor Y1 - 2014 SP - 25 EP - 30 ER - TY - CHAP A1 - Rosenberger, Markus A1 - Belle, Stefan A1 - Hellmann, Ralf T1 - Detection of unlabeled DNA hybridization with a planar Bragg Grating Sensor T2 - XXV International MicroCAD Conference – Sensing Technologies, Miskolc (Hungary) KW - Bragg-Reflektor Y1 - 2014 IS - Section R SP - 67 EP - 72 ER - TY - JOUR A1 - Belle, Stefan A1 - Rosenberger, Manuel A1 - Hellmann, Ralf T1 - Evanescent wave planar bragg grating sensor for real-time detection of unlabelled biomolecules JF - Optics Express KW - Bragg-Reflektor KW - Biomolekül Y1 - 2014 ER - TY - CHAP A1 - Belle, Stefan A1 - Rosenberger, Manuel A1 - Hellmann, Ralf T1 - Optical fibre sensing in the production process and storage of biofuels T2 - Proceeding XXV microCAD, International scientific conference, 2011, Section A KW - Biokraftstoff Y1 - 2014 SP - 21 EP - 26 ER - TY - JOUR A1 - Flachs, Dennis A1 - Zhukov, Sergey A1 - Zech, Isabella A1 - Schreck, Timo A1 - Belle, Stefan A1 - von Seggern, Heiinz A1 - Kupnik, Mario A1 - Altmann, Alexander Anton A1 - Thielemann, Christiane T1 - Enzymatic Self-Degradable PLA-Based Electrets JF - Journal of Polymers and the Environment N2 - In recent years, the demand for sustainable and degradable materials and electronic devices has increased significantly. Among a range of biodegradable polymers, poly(lactic acid) (PLA) is a good alternative to conventional petrol-based polymers because of its attractive mechanical properties and its easy processability. Recently, PLA has also been described as a promising dielectric material with piezoelectric and electret properties. We expect that PLA—after further optimization— will play an important role as a material for environmentally friendly sensors in the future, where first applications such as air filters and pressure sensors have already been proposed. However, degradation under normal ambient conditions is very slow, and an accelerated and controllable degradation process is highly desirable for any type of PLA-based sensors. Enzymatic hydrolysis with embedded enzymes has been proposed as an approach to accelerate and control degradation. In this work, we investigate the properties of PLA in terms of dielectric and mechanical properties with a focus on its ability to store charges after the enzyme proteinase K (Trit. album) has been incorporated. Results reveal that proteinase K has a positive effect on the charge stability of solvent-cast PLA electrets after complete evaporation of the solvent. Furthermore, we observed a concentration-dependent acceleration of mass loss in a Tris-HCl buffer. A fast degradation within only one day occurred at a concentration of 6 wt% proteinase K. KW - Biologisch abbaubarer Kunststoff Y1 - 2024 U6 - https://doi.org/Journal of https://doi.org/10.1007/s10924-024-03240-6 VL - 2024 IS - 1 SP - 1 EP - 11 ER - TY - CHAP A1 - Girschikofsky, Maiko A1 - Rosenberger, Manuel A1 - Belle, Stefan A1 - Brutschy, Malte A1 - Waldvogel, Siegfried A1 - Hellmann, Ralf T1 - α-Cyclodextrin functionalized planar Bragg grating sensor for the detection of small arene traces in solvamt vapour T2 - 14th international meeting on chemical sensors (IMCS 2012) KW - sensor detection KW - Bragg-Reflektor Y1 - 2012 SN - 978-3-9813484-2-2 U6 - https://doi.org/10.5162/IMCS2012/7.5.1 SP - 646 EP - 648 ER -