Note also that DNA with a "left-handed" twist, as this has, is a special kind of DNA known as Z-DNA. The DNA molecule is made up of four bases -- adenine (A), cytosine (C), guanine (G), and ...

We have built a prototype set of Borromean rings from DNA by mixing B-DNA and Z-DNA in a specific fashion. In a second use of Z-DNA, we have constructed a DNA nanomechanical device. The device ...