Borderline applications of QCM-devices: synthetic antibodies for analytes in both nm- and μm-dimensions
| Autor: | Christian Palfinger, Franz L. Dickert, Ulrich Wolff, Gerd Scholl, Dettlef Pickert, Oliver Hayden, Peter A. Lieberzeit |
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| Rok vydání: | 2003 |
| Předmět: |
Analyte
Metals and Alloys chemistry.chemical_element Nanotechnology Chemical interaction Quartz crystal microbalance Condensed Matter Physics Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry Chemical engineering Materials Chemistry Oil oxidation Electrical and Electronic Engineering Instrumentation Long chain Titanium |
| Zdroj: | Sensors and Actuators B: Chemical. 95:20-24 |
| ISSN: | 0925-4005 |
| DOI: | 10.1016/s0925-4005(03)00396-4 |
| Popis: | Mass-sensitive devices are able to monitor both degradation processes of complex mixtures, such as automotive oils, and microorganisms by synthetic antibodies allowing detection of nm and μm particles. Pure ceramic materials (TiO 2 ) were synthesised by a sol–gel process, e.g. from titanium(IV) alkoxides (Ti(OR) 4 ) and imprinted by long chain carbonic acids. The sensor effect is based on the re-inclusion of oil oxidation products, e.g. carbonic acids. Surface imprinting with biological structures, such as microorganisms, yields pits for their adhesion and strongly enhanced mass-sensitivity of the sensor device. This effect depends very sensitively on both geometrical fitting and chemical interaction between the structured sensor layer and the analyte. Surprisingly, the specific interaction results in Sauerbrey and non-Sauerbrey sensor behaviours. |
| Databáze: | OpenAIRE |
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