TY  - JOUR
AU  - Achtsnicht, Stefan
AU  - Schönenborn, Kristina
AU  - Offenhäusser, Andreas
AU  - Krause, Hans-Joachim
TI  - Measurement of the magnetophoretic velocity of different superparamagnetic beads
JO  - Journal of magnetism and magnetic materials
VL  - 477
SN  - 0304-8853
CY  - Amsterdam
PB  - North-Holland Publ. Co.
M1  - FZJ-2019-00761
SP  - 244-248
PY  - 2019
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000458874300039
DO  - DOI:10.1016/j.jmmm.2018.10.066
UR  - https://juser.fz-juelich.de/record/859955
ER  -