IEEE Transactions on Magnetics vol:41 issue:10 pages:4128-4133
Recently, magnetic biosensors have shown to be promising alternatives for classical fluorescence-based detection schemes. While on-chip detection of magnetic particles is well established, research groups now start to explore the unique possibility to manipulate these particles by applying controlled magnetic forces. By immobilizing biomolecules onto the particle's surface, this results in a number of additional functionalities, turning the label-which was previously solely a means of detection-into a "smart" label. In this paper, we give an overview of the dominant forces acting on a magnetic particle when manipulated by transporting devices such as the ones that are currently developed at our lab.