Figure 3

Gel electrophoresis experiments on single-stranded DNAs of M13 bacteriophages (control) and the laser-irradiated M13 bacteriophages after treatment with the visible femtosecond laser, operated at 425 nm, at a repetition rate of 80 MHz, average power of 100 mWs, laser spot size of about 100 micron, and laser irradiation for 1 hr. For clarity, on the laser irradiated sample, an additional band resulting from the α-helix protein units of M13 bacteriophages, which appears on a different scale, is not shown (with publisher’s permission).