@article{OezsoyluKizildagSchoeningetal.2019, author = {{\"O}zsoylu, Dua and Kizildag, Sefa and Sch{\"o}ning, Michael Josef and Wagner, Torsten}, title = {Effect of plasma treatment on the sensor properties of a light-addressable potentiometric sensor (LAPS)}, series = {physica status solidi a : applications and materials sciences}, volume = {216}, journal = {physica status solidi a : applications and materials sciences}, number = {20}, publisher = {Wiley}, address = {Weinheim}, issn = {1862-6319}, doi = {10.1002/pssa.201900259}, pages = {8 Seiten}, year = {2019}, abstract = {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.}, language = {en} } @article{ZhubanovaDigelNojimaetal.2007, author = {Zhubanova, Azhar A. and Digel, Ilya and Nojima, H. and Artmann, Gerhard}, title = {The use of bactericidal effects of cluster ions generated by plasma in medical biotechnology}, year = {2007}, abstract = {The most of conventional methods of air purification use the power of a fan to draw in air and pass it through a filter. The problem of bacterial contamination of inner parts of such a type of air conditioners in some cases draws attention towards alternative air-cleaning systems. Some manufacturers offer to use the ozone's bactericidal and deodorizing effects, but the wide spreading of such systems is restricted by the fact that toxic effects of ozone in respect of human beings are well known. In 2000 Sharp Inc. introduced "Plasma Cluster Ions (PCI)" air purification technology, which uses plasma discharge to generate cluster ions (I 0-14 ). This technology has been developed for those customers that are conscious about health and hygiene. In our experiments, we focused on some principal aspects of plasma-generated ions application - time-dependency and irreversibility of bactericidal action, spatial and kinetic characteristics of emitted cluster particles, their chemical targets in the microbial cells.}, subject = {Clusterion}, language = {en} } @article{ZhubanovaAknazarovMansurovetal.2010, author = {Zhubanova, Azhar A. and Aknazarov, S. K. and Mansurov, Zulkhair and Digel, Ilya and Kozhalakova, A. A. and Akimbekov, Nuraly Shardarbekovich and O'Heras, Carlos and Tazhibayeva, S. and Artmann, Gerhard and Temiz Artmann, Ayseg{\"u}l}, title = {Adsorption of bacterial Lipopolysaccharides and blood plasma proteins on modified carbonized materials}, year = {2010}, abstract = {Bacterial lipopolysaccharides (endotoxins) show strong biological effects at very low concentrations in human beings and many animals when entering the blood stream. These include affecting structure and function of organs and cells, changing metabolic functions, raising body temperature, triggering the coagulation cascade, modifying hemodynamics and causing septic shock. Because of this toxicity, the removal of even minute amounts is essential for safe parenteral administration of drugs and also for septic shock patients' care. The absence of a general method for endotoxin removal from liquid interfaces urgently requires finding new methods and materials to overcome this gap. Nanostructured carbonized plant parts is a promising material that showed good adsorption properties due to its vast pore network and high surface area. The aim of this study was comparative measurement of endotoxin- and blood proteins-related adsorption rate and adsorption capacity for different carboneous materials produced at different temperatures and under different surface modifications. As a main surface modificator, positively cbarged polymer, polyethileneimine (PEl) was used. Activated carbon materials showed good adsorption properties for LPS and some proteins used in the experiments. During the batch experiments, several techniques (dust removal, autoclaving) were used and optimized for improving the material's adsorption behavior. Also, with the results obtained it was possible to differentiate the materials according to their adsorption capacity and kinetic characteristics. Modification of the surface apparently has not affected hemoglobin binding to the adsorbent's surface. Obtained adsorption isotherms can be used as a powerful tool for designing of future column-based setups for blood purification from LPS, which is especially important for septic shock treatment.}, subject = {Kohlenstofffaser}, language = {en} } @article{WollertBooke2016, author = {Wollert, J{\"o}rg and Booke, Andreas}, title = {IoT von der Stange}, series = {elektronik}, journal = {elektronik}, number = {21 (2016)}, publisher = {WEKA-Fachmedien}, address = {M{\"u}nchen}, pages = {30 -- 37}, year = {2016}, abstract = {Heute sollte am besten jedes Ger{\"a}t in die große Rechnerwolke eingebettet werden. Doch so einfach ist das nicht, denn Cloud ist viel mehr als nur das Internet der Dinge. Als Anwender muss man sich also fragen, welche Dienste man m{\"o}chte und welchem Anbieter man sein Vertrauen schenkt.}, language = {de} } @article{Wollert2014, author = {Wollert, J{\"o}rg}, title = {Funkstandards f{\"u}r Sensornetzwerke}, series = {Elektronik : Fachmedium f{\"u}r industrielle Anwender und Entwickler}, volume = {Bd. 63}, journal = {Elektronik : Fachmedium f{\"u}r industrielle Anwender und Entwickler}, number = {H. 12}, publisher = {WEKA-Fachmedien}, address = {Haar}, issn = {0013-5658}, pages = {36 -- 41}, year = {2014}, language = {de} } @article{Wollert2014, author = {Wollert, J{\"o}rg}, title = {Echtzeit-Ethernet : Protokoll-Reigen}, series = {Elektronik : Fachmedium f{\"u}r industrielle Anwender und Entwickler}, volume = {Bd. 63}, journal = {Elektronik : Fachmedium f{\"u}r industrielle Anwender und Entwickler}, number = {H. 26}, publisher = {WEKA-Fachmedien}, address = {Haar}, issn = {0013-5658}, pages = {24 -- 31}, year = {2014}, language = {de} } @article{Wollert2014, author = {Wollert, J{\"o}rg}, title = {Echtzeit-Ethernet mit Standardtechnik}, series = {Elektronik : Fachmedium f{\"u}r industrielle Anwender und Entwickler ; Sonderh. Embedded : Fachmagazin f{\"u}r die Entwicklung von Embedded-Systemen}, volume = {Bd. 63}, journal = {Elektronik : Fachmedium f{\"u}r industrielle Anwender und Entwickler ; Sonderh. Embedded : Fachmagazin f{\"u}r die Entwicklung von Embedded-Systemen}, number = {H. 12}, publisher = {WEKA-Fachmedien}, address = {Haar}, issn = {0013-5658}, pages = {28 -- 32}, year = {2014}, language = {de} } @article{Wollert2015, author = {Wollert, J{\"o}rg}, title = {IO-Link - f{\"u}r smarte Sensoren}, series = {elektroniknet.de}, journal = {elektroniknet.de}, year = {2015}, language = {de} } @article{Wollert2016, author = {Wollert, J{\"o}rg}, title = {Rapid Application Development}, series = {Design \& Elektronik}, journal = {Design \& Elektronik}, number = {4}, publisher = {WEKA-Fachmedien}, address = {M{\"u}nchen}, issn = {0933-8667}, pages = {8 -- 11}, year = {2016}, abstract = {Das IoT ist ohne eingebettete Systeme undenkbar. Erst kleine und kleinste Mikrocontroller mit intelligenten Kommunikationsschnittstellen und Anbindung ans Internet erm{\"o}glichen sinnvolles und fl{\"a}chendeckendes Einsammeln von Daten. Doch wie kompliziert ist der Einstieg in die Embedded-Welt? Dieser Artikel gibt Einblick, wie die »Arduino-Plattform« die Einstiegsh{\"u}rden f{\"u}r eingebettete Systeme dramatisch reduzieren kann.}, language = {de} } @article{Wollert2016, author = {Wollert, J{\"o}rg}, title = {OS-Funktionalit{\"a}t ohne OS f{\"u}r das IoT}, series = {Design \& Elektronik}, journal = {Design \& Elektronik}, number = {11}, publisher = {WEKA-Fachmedien}, address = {M{\"u}nchen}, issn = {0933-8667}, pages = {85 -- 90}, year = {2016}, abstract = {Low-end-Embedded-Plattformen stellen eine hohe Anforderung an die Entscheidungsf{\"a}higkeit des Entwicklers: Zum n{\"a}chstgr{\"o}ßeren Prozessor greifen und ein Betriebssystem benutzen oder doch besser auf das Betriebssystem verzichten? Die Frage l{\"a}sst sich einfach beantworten: Einen Nanokernel verwenden und das Embedded-System mit einem minimalen Footprint realisieren. Adam Dunkels Protothreads sind eine ausgesprochen effiziente Art, Mikrocontroller gut strukturiert zu programmieren und gleichzeitig auf Overhead zu verzichten. So k{\"o}nnen auch mit kleinen 8-bit-Prozessoren anspruchsvolle Aufgaben in einem Thread-Modell bearbeitet werden. Man muss also nicht immer das Rad neu erfinden oder gleich auf Linux-basierte Systeme zur{\"u}ckgreifen.}, language = {de} }