Fig. 5: QMT detection of streptavidin, BSA and IgG. | Nature Communications

Fig. 5: QMT detection of streptavidin, BSA and IgG.

From: Combined quantum tunnelling and dielectrophoretic trapping for molecular analysis at ultra-low analyte concentrations

Fig. 5

a Representative conductance–time traces for a solution consisting of 10 nM of proteins using a tunnelling junction with a gap width of ~1.8 nm and an applied bias of 100 mV. b–d Scatter plots of change in conductance versus duration for transients associated with streptavidin, BSA, and IgG. e Normalised histogram of the change in conductance for the three proteins highlighting a clear difference in amplitude of the transients.

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