Dornuf, Fabian ; Dörr, Roland ; Laemmle, David ; Schlaak, Helmut F. ; Krozer, Viktor (2016)
Sensor structure concepts for the analysis or local radiation exposure of biological samples at Terahertz and Millimeter Wave Frequencies.
Photonic West 2016. USA, San Francisco (13.02.2016-18.02.2016)
Konferenzveröffentlichung, Bibliographie
Kurzbeschreibung (Abstract)
We have studied several sensor concepts for biomedical applications operating in the millimetre-wave and Terahertz range. On one hand, rectangular waveguide structure were designed and extended with microfluidic channels. In this way a simple analysis of aqueous solutions at various waveguide bands is possible. In our case, we focused on the frequency range between 75 GHz and 110 GHz. On the other hand, planar sensor structures for aqueous solutions have been developed based on coplanar waveguides. With these planar sensors it is possible to concentrate the interaction volume on small sensor areas, which achieve a local exposure of the radiation to the sample. When equipping the sensor with microfluidic structures the sample volume could be reduced significantly and enabled a localized interaction with the sensor areas. The sensors are designed to exhibit a broadband behavior up to 300 GHz. Narrow-band operation can also be achieved for potentially increased sensitivity by using resonant structures. Several tests with Glucose solved in water show promising results for the distinction of different glucose levels at millimeter wave frequencies. The planar structures can also be used for the exposure of biological cells or cell model systems like liposomes with electromagnetic radiation. Several studies are planned to distinguish on one hand the influence of millimeter wave exposure on biological systems and also to have a spectroscopic method which enables the analysis of cell processes, like membrane transport processes, with millimeter wave and terahertz frequencies by focusing the electric field directly on the analyzing sample.
| Typ des Eintrags: | Konferenzveröffentlichung |
|---|---|
| Erschienen: | 2016 |
| Autor(en): | Dornuf, Fabian ; Dörr, Roland ; Laemmle, David ; Schlaak, Helmut F. ; Krozer, Viktor |
| Art des Eintrags: | Bibliographie |
| Titel: | Sensor structure concepts for the analysis or local radiation exposure of biological samples at Terahertz and Millimeter Wave Frequencies |
| Sprache: | Englisch |
| Publikationsjahr: | 4 März 2016 |
| Veranstaltungstitel: | Photonic West 2016 |
| Veranstaltungsort: | USA, San Francisco |
| Veranstaltungsdatum: | 13.02.2016-18.02.2016 |
| Kurzbeschreibung (Abstract): | We have studied several sensor concepts for biomedical applications operating in the millimetre-wave and Terahertz range. On one hand, rectangular waveguide structure were designed and extended with microfluidic channels. In this way a simple analysis of aqueous solutions at various waveguide bands is possible. In our case, we focused on the frequency range between 75 GHz and 110 GHz. On the other hand, planar sensor structures for aqueous solutions have been developed based on coplanar waveguides. With these planar sensors it is possible to concentrate the interaction volume on small sensor areas, which achieve a local exposure of the radiation to the sample. When equipping the sensor with microfluidic structures the sample volume could be reduced significantly and enabled a localized interaction with the sensor areas. The sensors are designed to exhibit a broadband behavior up to 300 GHz. Narrow-band operation can also be achieved for potentially increased sensitivity by using resonant structures. Several tests with Glucose solved in water show promising results for the distinction of different glucose levels at millimeter wave frequencies. The planar structures can also be used for the exposure of biological cells or cell model systems like liposomes with electromagnetic radiation. Several studies are planned to distinguish on one hand the influence of millimeter wave exposure on biological systems and also to have a spectroscopic method which enables the analysis of cell processes, like membrane transport processes, with millimeter wave and terahertz frequencies by focusing the electric field directly on the analyzing sample. |
| Freie Schlagworte: | sensor structures, THz radiation, waveguides, microchannels, analysis of cells |
| Fachbereich(e)/-gebiet(e): | 18 Fachbereich Elektrotechnik und Informationstechnik 18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Elektromechanische Konstruktionen (aufgelöst 18.12.2018) 18 Fachbereich Elektrotechnik und Informationstechnik > Mikrotechnik und Elektromechanische Systeme |
| Hinterlegungsdatum: | 07 Mär 2016 16:54 |
| Letzte Änderung: | 10 Dez 2018 13:39 |
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