Fig. 2.

Representative nanopore current trace and events from sodium alginate samples from two different sources. a A representative segment of an A1-induced current trace using a ~21 nm-diameter pore; the solid blue line marks the most frequent event level, i_b, and the blue dashed line is its mean across all events. The magnified current event is from the same trace. b A2- and c enzyme-digested-A2-associated single events through a ~22 nm-diameter pore. All currents were measured in response to a −200 mV voltage difference