M. Mills et al., « Circular dichroism as a means to follow DNA gymnastics: on the shoulders of giants », South African Journal of Science, ID : 10670/1.j3mc99
This is the first report of DNA stem-loops self-assembled by 'foot-loop' interactions into either two-dimensional strings or three-dimensional spirals, distinguished by circular dichroism spectroscopy. All subunits are linked by cooperative Watson-Crick hydrogen bonds.