Measurement of the magnetophoretic velocity of different superparamagnetic beads
- The movement of magnetic beads due to a magnetic field gradient is of great interest in different application fields. In this report we present a technique based on a magnetic tweezers setup to measure the velocity factor of magnetically actuated individual superparamagnetic beads in a fluidic environment. Several beads can be tracked simultaneously in order to gain and improve statistics. Furthermore we show our results for different beads with hydrodynamic diameters between 200 and 1000 nm from diverse manufacturers. These measurement data can, for example, be used to determine design parameters for a magnetic separation system, like maximum flow rate and minimum separation time, or to select suitable beads for fixed experimental requirements.
| Author: | Stefan AchtsnichtORCiD, Kristina Schönenborn, Andreas Offenhäusser, Hans-Joachim Krause |
|---|---|
| DOI: | https://doi.org/10.1016/j.jmmm.2018.10.066 |
| ISSN: | 0304-8853 |
| Parent Title (English): | Journal of Magnetism and Magnetic Materials |
| Publisher: | Elsevier |
| Place of publication: | Amsterdam |
| Document Type: | Article |
| Language: | English |
| Year of Completion: | 2019 |
| Date of the Publication (Server): | 2023/06/16 |
| Tag: | magnetic actuation; magnetic separation; magnetic tweezers; magnetophoretic velocity; superparamagnetic bead |
| Volume: | 477 |
| Issue: | 1 |
| First Page: | 244 |
| Last Page: | 248 |
| Link: | https://doi.org/10.1016/j.jmmm.2018.10.066 |
| Zugriffsart: | bezahl |
| Institutes: | FH Aachen / Fachbereich Medizintechnik und Technomathematik |
| FH Aachen / INB - Institut für Nano- und Biotechnologien | |
| collections: | Verlag / Elsevier |
