Figure 3
From: Specific effects of antitumor active norspermidine on the structure and function of DNA
Typical FM image of a single T4 DNA molecule undergoing the Brownian motion in solution; (a) in the absence and, (b) in the presence of 1 mM NSPD. The time difference between neighbouring frames is 1 s. (c) Distribution of the long-axis length L of T4 DNA in solution at different concentrations of SPD and NSPD. The DNA concentration was fixed at 0.1 μM in nucleotide units. \(\bar{L}\) (μm) is the ensemble average for 50 DNA molecules.
