Development of a Biolabeling System Using Ferromagnetic Nanowires

This paper presents the development of a biolabeling system using different ferromagnetic nanowire types. The proposed biolabeling system concept includes a cell separation procedure description using magnetic nanowires and how nanowires can be used and identified as biolabels. A study on single magnetic nanowire behavior is performed, and the algorithm used to characterize and identify each nanowire type separately and from a mix of multiple types is described. The algorithm is verified using measurement data from individual nanowire array samples and stacked combinations of cobalt, iron, and nickel. From the strong correlation between the measured transmission coefficient data of magnetic nanowire arrays and a mathematical model, the potential of interpreting multiple magnetic nanowire types inside cells is confirmed.