https://phys.org/news/2019-01-method-effects-chemicals-dna.html

By bending strands of DNA, the researchers can amplify the effects of chemical interactions so that the effects can be observed more easily. Their study, which demonstrated the concept using magnesium and silver ions, was recently published in the journal Physical Review E, and the researchers have filed for a patent for their method.

In the study, the researchers demonstrated that their method could be used to observe interactions of DNA with metal ions using gel electrophoresis, a routine technique available in most chemistry and biochemistry labs.