@inproceedings{MelekhovAbbLechneretal., author = {Melekhov, Evgeny and Abb, Valerius and Lechner, Alfred and Kammler, Martin}, title = {Development of a glass-fiber-based spectrometer for the determination of drug residues in groundwater}, series = {Tagungsband 2. Symposium Elektronik und Systemintegration ESI 2020 "Intelligente Systeme und ihre Komponenten: Forschung und industrielle Anwendung"}, booktitle = {Tagungsband 2. Symposium Elektronik und Systemintegration ESI 2020 "Intelligente Systeme und ihre Komponenten: Forschung und industrielle Anwendung"}, editor = {Ivanov, Artem and Bicker, Marc and Patzelt, Peter}, isbn = {978-3-9818439-4-1}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:860-opus4-2174}, pages = {101 -- 109}, abstract = {Within the scope of this project, a portable measuring device has been developed which enables a cost-effective analysis of organic substances from ppm to sub-ppm range, such as drug residues in groundwater. The measurement is carried out by means of a surface-enhanced Raman scattering effect (SERS effect) and an exchangeable sensor head. The sensor head used is a nanostructured optical glass fiber glued into a fiber cannula. The tip of the fiber has been processed to act as a SERS cell. The fiber cannula is connected to a freely movable patch cable by using an adapter. Para-thiocresol is used to characterize the SERS cells.}, language = {en} } @inproceedings{BlahnikovaMuellerWaasetal., author = {Blahn{\´i}kov{\´a}, Barbora and M{\"u}ller, D. and Waas, M. and Lechner, Alfred}, title = {Multilyzer - microfluidic online measuring system for the analysis of environmentally relevant substances}, series = {AMA Conferences 2017 : Proceedings : SENSOR 2017 / N{\"u}rnberg 2017-05-30 - 2017-06-01}, booktitle = {AMA Conferences 2017 : Proceedings : SENSOR 2017 / N{\"u}rnberg 2017-05-30 - 2017-06-01}, publisher = {AMA Service GmbH}, address = {Wunstorf}, isbn = {978-3-9816876-4-4}, doi = {10.5162/sensor2017/P5.2}, pages = {696 -- 699}, language = {en} } @inproceedings{PeterDalmerLotnyketal., author = {Peter, Daniel and Dalmer, Michael and Lotnyk, Andriy and Kienle, Lorenz and Lechner, Alfred and Bensch, Wolfgang}, title = {Solid bridging during pattern collapse (stiction) studied on silicon nanoparticles}, series = {MRS Online Proceedings Library}, volume = {1299}, booktitle = {MRS Online Proceedings Library}, publisher = {Springer Nature}, doi = {10.1557/opl.2011.397}, pages = {191 -- 196}, abstract = {The high surface to volume ratio of nanoparticles allows a detailed experimental study of the surface phenomena associated with solid bridging. Besides bulk analyses, the local view on the structure and composition via HRTEM is particularly essential. 50 nm core shell particles consisting of a silicon (Si) core and a SiO2 shell were used as model system to understand surface phenomena appearing for Si-based nanostructures. Evaporative drying from de-ionized water shows the most significant bridging effect based on SiO2. There is only a localized deposition of oxides between the particles during the drying process and no overall oxidation. For the deposition material, silicates are the most likely candidates.}, language = {en} }