Next-generation magnetic biosensors will be able to detect extremely low concentrations of proteins and other biomolecules in very small samples within just a few minutes.
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Sandhu, A. New probes offer much faster results. Nature Nanotech 2, 746–748 (2007). https://doi.org/10.1038/nnano.2007.398
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DOI: https://doi.org/10.1038/nnano.2007.398