A biochip based on magnetoresistive sensors
| Autor: | J. Schotter, Willi Schepper, Günter Reiss, Alfred Pühler, Paul-Bertram Kamp, Hubert Brückl, D. Brinkmann, Anke Becker |
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| Rok vydání: | 2002 |
| Předmět: |
Detection limit
bioniagneties Analyte Materials science Magnetoresistance business.industry magnetoresistive devices Giant magnetoresistance Nanotechnology sensors equipment and supplies Biomagnetism Electronic Optical and Magnetic Materials otorhinolaryngologic diseases biomedical measurements Optoelectronics Electrical and Electronic Engineering business Biochip human activities Sensitivity (electronics) Biosensor |
| Zdroj: | IEEE Transactions on Magnetics. 38:3365-3367 |
| ISSN: | 0018-9464 |
| DOI: | 10.1109/tmag.2002.802290 |
| Popis: | The signal response of Bangs Laboratories magnetic markers with a mean diameter of 0.86 /spl mu/m on a spiral-shaped giant magnetoresistance sensor with a diameter of 70 /spl mu/m is investigated. The data show a linear dependence of the sensor signal on the surface coverage of the magnetic markers. The detection limit is reached at a coverage of about 5%, which corresponds to about 200 markers distributed across the surface of the sensor. The corresponding molecular binding of the analyte DNA and the magnetic markers show good selectivity and sensitivity. |
| Databáze: | OpenAIRE |
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