TY - JOUR A1 - Özsoylu, Dua A1 - Kizildag, Sefa A1 - Schöning, Michael Josef A1 - Wagner, Torsten T1 - Effect of plasma treatment on the sensor properties of a light‐addressable potentiometric sensor (LAPS) JF - physica status solidi a : applications and materials sciences N2 - A light-addressable potentiometric sensor (LAPS) is a field-effect-based (bio-) chemical sensor, in which a desired sensing area on the sensor surface can be defined by illumination. Light addressability can be used to visualize the concentration and spatial distribution of the target molecules, e.g., H+ ions. This unique feature has great potential for the label-free imaging of the metabolic activity of living organisms. The cultivation of those organisms needs specially tailored surface properties of the sensor. O2 plasma treatment is an attractive and promising tool for rapid surface engineering. However, the potential impacts of the technique are carefully investigated for the sensors that suffer from plasma-induced damage. Herein, a LAPS with a Ta2O5 pH-sensitive surface is successfully patterned by plasma treatment, and its effects are investigated by contact angle and scanning LAPS measurements. The plasma duration of 30 s (30 W) is found to be the threshold value, where excessive wettability begins. Furthermore, this treatment approach causes moderate plasma-induced damage, which can be reduced by thermal annealing (10 min at 300 °C). These findings provide a useful guideline to support future studies, where the LAPS surface is desired to be more hydrophilic by O2 plasma treatment. Y1 - 2019 U6 - http://dx.doi.org/10.1002/pssa.201900259 SN - 1862-6319 N1 - Corresponding author: Torsten Wagner VL - 216 IS - 20 PB - Wiley CY - Weinheim ER - TY - CHAP A1 - Zingsheim, Jonas A1 - Grimmer, Timo A1 - Ortner, Marion A1 - Schmaderer, Christoph A1 - Hauser, Christine A1 - Kotliar, Konstantin ED - Staat, Manfred ED - Erni, Daniel T1 - Recognition of subjects with mild cognitive impairment (MCI) by the use of retinal arterial vessels. T2 - 3rd YRA MedTech Symposium 2019 : May 24 / 2019 / FH Aachen Y1 - 2019 SN - 978-3-940402-22-6 U6 - http://dx.doi.org/10.17185/duepublico/48750 SP - 36 EP - 37 PB - Universität Duisburg-Essen CY - Duisburg ER - TY - CHAP A1 - Wuttke, Claudia A1 - Butenweg, Christoph A1 - Rosin, Julia A1 - Kubalski, Thomas T1 - Verbesserte seismische Nachweiskonzepte für Mauerwerksbauten in deutschen Erdbebengebieten T2 - Adam, Christoph (Hrsg.) ; Univ. Innsbruck: 16. D-A-CH Tagung Erdbebeningenieurwesen & Baudynamik 2019 : 26. und 27. September 2019, Innsbruck Y1 - 2019 SN - 978-3-200-06454-6 SP - 713 EP - 722 CY - Innsbruck ER - TY - CHAP A1 - Wolf, Martin A1 - Barton, Thomas A1 - Herrmann, Frank A1 - Meister, Vera G. A1 - Müller, Christian A1 - Seel, Christian T1 - Angewandte Forschung in der Wirtschaftsinformatik 2019 : Tagungsband zur 32. AKWI-Jahrestagung vom 15.09.2019 bis 18.09.2019 an der Fachhochschule für Angewandte Wissenschaften Aachen / hrsg. von Martin R. Wolf, Thomas Barton, Frank Herrmann, Vera G. Meister, Christian Müller, Christian Seel N2 - Tagungsbeiträge aus den Bereichen Projektmanagement, Didaktik in der Wirtschaftsinformatik, IT-Sicherheit, Anwendungsfälle, Reifegradmodelle, Plattformen für Geschäftsprozesse und Prototypen. Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:526-opus4-13026 SN - 978-3-944330-62-4 PB - mana-Buch CY - Heide ER - TY - JOUR A1 - Wingens, Niklas A1 - May, Jörg A1 - Pfaff, Raphael T1 - Betrieblich-technische Innovationsansätze zur Bremsprobe nach einer Prozessänderung JF - Eisenbahntechnische Rundschau : ETR ; Zeitschrift für die gesamte Eisenbahntechnik Y1 - 2019 SN - 0013-2845 IS - 5 PB - DVV Media Group CY - Hamburg ER - TY - JOUR A1 - Wilbring, Daniela A1 - Enning, Manfred T1 - Stromversorgung auf Güterwagen - Aktuelle Bemühungen zur Standardisierung JF - ETR - Eisenbahntechnische Rundschau Y1 - 2019 SN - 0013-2845 VL - 68 IS - 11 SP - 64 EP - 67 PB - DVV Media Group CY - Hamburg ER - TY - CHAP A1 - Wiesen, Andreas A1 - Schleser, Markus T1 - Entwicklung einer Qualitätssicherung für das Laserstrahlschweißen im Vakuum mittels Bildverarbeitung T2 - Große Schweißtechnische Tagung Y1 - 2019 SN - 978-3-96144-066-5 N1 - DVS CONGRESS 2019, Große Schweißtechnische Tagung, DVS-Studentenkongress. 16. bis 17. September 2019, Düsseldorf. DVS-Berichte, Band 355 SP - 1 EP - 6 PB - DVS-Media CY - Düsseldorf ER - TY - JOUR A1 - Werkhausen, Amelie A1 - Cronin, Neil J. A1 - Albracht, Kirsten A1 - Paulsen, Gøran A1 - Larsen, Askild V. A1 - Bojsen-Møller, Jens A1 - Seynnes, Olivier R. T1 - Training-induced increase in Achilles tendon stiffness affects tendon strain pattern during running JF - PeerJ N2 - Background During the stance phase of running, the elasticity of the Achilles tendon enables the utilisation of elastic energy and allows beneficial contractile conditions for the triceps surae muscles. However, the effect of changes in tendon mechanical properties induced by chronic loading is still poorly understood. We tested the hypothesis that a training-induced increase in Achilles tendon stiffness would result in reduced tendon strain during the stance phase of running, which would reduce fascicle strains in the triceps surae muscles, particularly in the mono-articular soleus. Methods Eleven subjects were assigned to a training group performing isometric singleleg plantarflexion contractions three times per week for ten weeks, and another ten subjects formed a control group. Before and after the training period, Achilles tendon stiffness was estimated, and muscle-tendon mechanics were assessed during running at preferred speed using ultrasonography, kinematics and kinetics. Results Achilles tendon stiffness increased by 18% (P <0:01) in the training group, but the associated reduction in strain seen during isometric contractions was not statistically significant. Tendon elongation during the stance phase of running was similar after training, but tendon recoil was reduced by 30% (P <0:01), while estimated tendon force remained unchanged. Neither gastrocnemius medialis nor soleus fascicle shortening during stance was affected by training. Discussion These results show that a training-induced increase in Achilles tendon stiffness altered tendon behaviour during running. Despite training-induced changes in tendon mechanical properties and recoil behaviour, the data suggest that fascicle shortening patterns were preserved for the running speed that we examined. The asymmetrical changes in tendon strain patterns supports the notion that simple inseries models do not fully explain the mechanical output of the muscle-tendon unit during a complex task like running. KW - Achilles tendon KW - Stiffness KW - Running KW - Tendon properties KW - Architectural gear ratio Y1 - 2019 U6 - http://dx.doi.org/10.7717/peerj.6764 SN - 21678359 PB - Peer CY - London ER - TY - JOUR A1 - Werkhausen, Amelie A1 - Cronin, Neil J. A1 - Albracht, Kirsten A1 - Bojsen-Møller, Jens A1 - Seynnes, Olivier R. T1 - Distinct muscle-tendon interaction during running at different speeds and in different loading conditions JF - Journal of Applied Physiology Y1 - 2019 U6 - http://dx.doi.org/10.1152/japplphysiol.00710.2018 SN - 1522-1601 VL - 127 IS - 1 SP - 246 EP - 253 ER - TY - BOOK A1 - Weigand, Christoph T1 - Statistik mit und ohne Zufall : Eine anwendungsorientierte Einführung Y1 - 2019 SN - 978-3-662-59309-7 U6 - http://dx.doi.org/10.1007/978-3-662-59309-7 PB - Springer Spektrum CY - Berlin, Heidelberg ET - 3. Aufl. ER -