The sample was kindly given by I. I. Agapov and E.A. Tonevitsky, Institute for transplantation and artificial organs, Moscow, Russia.
The sample was kindly given by I. I. Agapov and E.A. Tonevitsky, Institute for transplantation and artificial organs, Moscow, Russia.
Flower-shaped DNA (circular plasmide pEGFP, 3.4 kb. p.) condensates on poly-L-lysine treated mica. The image was obtained in semicontact mode in air. Z scale is 6 nm.