A novel class of compounds, known as peptide nucleic acids, bind complementary ssDNA and RNA strands more strongly than a corresponding DNA. The peptide nucleic acids generally comprise ligands such as naturally occurring DNA bases attached to a peptide backbone through a suitable linker.

/pdf/peptide-nucleic-acids-1hpyrn4znw.pdf

Peptide nucleic acids

Electron microscopic and biochemical evidence that chromatin structure is a repeating unit

Conductivity measurements on double-stranded DNA molecules deposited by a combing process across a submicron slit between rhenium/carbon metallic contacts reveal conduction to be ohmic between room temperature and 1 kelvin. The resistance per molecule is less than 100 kilohm and varies weakly with temperature. Below the superconducting transition temperature (1 kelvin) of the contacts, proximity-induced superconductivity is observed. These results imply that DNA molecules can be conducting down to millikelvin temperature and that phase coherence is maintained over several hundred nanometers.

/pdf/proximity-induced-superconductivity-in-dna-262v1anlqq.pdf

Proximity-Induced Superconductivity in DNA

https://pure.mpg.de/pubman/item/item_599500_3/component/file_599499/16663.pdf

Max Zollinger

Papers

A new preparation method for dark-field electron microscopy of biomacromolecules.