Figure 4From: Charge density and particle size effects on oligonucleotide and plasmid DNA binding to nanosized hydrotalcite (A) Analysis of single- and double-stranded oligonucleotide DNAs by agarose gel electrophoresis. Lane 1, 50 bp DNA ladder; lane 2, Pvu4a (400 ng); lane 3, cPvu4a (400 ng); lane 4, Pvu4a + cPvu4a after annealing. (B) pRS316 plasmid DNA preps are composed primarily of fast-migrating supercoiled DNA. Lane 1, 1 kb DNA ladder; lane 2, pRS316 DNA.Back to article page