Figure 7.

Target concentration-dependent wicking with extracted plant DNA. (A) Wicking distances of 2% solid microsphere solutions in the paper channels mixed with extracted plant DNA. DNA extracts from sour orange leaves were spiked with six different A′-B′ linker concentrations, ranging from 1 nM to 100 µM, along with a DI H₂O control. Two more controls were tested with microspheres mixed with 1 µM and 0 M A′-B′ in water. (B) Average wicking distances measured from the top of the inlet (N = 4). (C) Wicking distances of 2% solid microsphere solutions in the paper channels mixed with extracted plant DNA. Sour orange leaves were spiked with 10 µL of 10 µM A′-B′ before extraction, resulting in a nominal postextraction concentration of 1 µM. (D) Average wicking distances measured from the top of the inlet (N = 3). Data are displayed as mean ± standard deviation. Scale bars are 5 mm.