Sensing translocating polymers via induced magnetic fields

The requirement to boost the resolution of nanopore-based biosequencing devices necessitates integration novel biosensing techniques with reduced sensitivity background noise. In this article, we probe signatures translocating polymers in magnetic fields induced by ionic currents through membrane nanopores. Within framework a previously introduced charge transport theory, evaluate field signals generated voltage- and pressure-driven DNA translocation events monovalent salt solutions. Our formalism reveals that voltage-driven transport, polymer suppresses via steric blockage ion current mid-pore. case reduction originates from negative electrokinetic contribution anionic surface charges streaming predominantly composed cations. magnitude corresponding is located nano-Tesla range covered magnetoelectric sensors able detect down pico-Tesla range. This suggests detection into approaches can complement efficiently conventional strategies employing readouts high susceptibility