We determined effective cross sections for production of single-strand breaks (SSBs) in plasmid DNA [pGEM 3Zf(-)] by electrons of 10 eV and energies between 0.1 and 4.7 eV. After purification and lyophilization on a chemically clean tantalum foil, dry plasmid
A simple four-element fused-silica lens is presented that has a focal length of 31.2 mm and a relative aperture of f/1 for use as a focusing lens for deep UV laser processing. The curvature of the lens is designed with
The journal of physical chemistry. B, 109(10), 4796-4800 (2006-07-21)
Both monolayer and thick (20 microm) films of dry pGEM-3Zf(-) plasmid DNA deposited on tantalum foil were exposed to Al Kalpha X-rays (1.5 keV) for various times in an ultrahigh vacuum chamber. For monolayer DNA, the damage was induced mainly
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