Figure 1 of Sharma, Mol Vis 2012; 18:2598-2607.

Figure 1. Agarose gel electrophoresis showing DNA migration and polyplex formation between PEI and plasmid. Plasmid alone showed DNA migration (lane-2) but no DNA migration was detected in polyplex (lane-3) or PEI alone (lane-1) on the gel. L: denotes 1 kb plus DNA ladder loading.