We have measured the helical parameters of DNA in concentrated solutions by x-ray fiber diffraction methods. Fibers of the sodium salt of DNA were swollen with water within capillaries; the capillary ...

The projects in Ma's Laboratory focus at the frontier of modern computational biophysics and structural biology. This includes three major research directions. Large-scale conformational transitions ...

Australian researchers design an optical fiber that focuses light in the far field without using lenses. Researchers in Australia have designed an air-silica optical fiber that overcomes free-space ...

More complex and not answered at the time was the question of why there were two forms. What was the nature of the less-hydrated fibers that produced the better-oriented and crystalline A-form, which ...