Refine
Has Fulltext
- no (27)
Year of publication
Document Type
- Other (27) (remove)
Language
- English (27) (remove)
Is part of the Bibliography
- yes (27)
Keywords
- Monte-Carlo simulations (1)
- Near infrared (1)
- OH suppression (1)
- PHEMA (1)
- Photon Density Wave Spectroscopy (1)
- SAW impedance sensor (1)
- Time-resolved crystallography (1)
- algae cultivation (1)
- astrophotonics (1)
- crystallography (1)
Institute
- Institut für Chemie (27) (remove)
Nanocarriers
(2017)
Surface acoustic wave (SAW) devices are well-known for gravimetric sensor applications. In biosensing applications, chemical-and biochemically evoked adsorption processes at surfaces are detected in liquid environments using delay-line or resonator sensor configurations, preferably in combination with appropriate microfluidic devices. In this paper, a novel SAW-based impedance sensor type is introduced which uses only one interdigital electrode transducer (IDT) simultaneously as SAW generator and sensor element. It is shown that the amplitude of the reflected S-11 signal directly depends on the input impedance of the SAW device. The input impedance is strongly influenced by mass adsorption which causes a characteristic and measurable impedance mismatch.