Peptide nucleic acids (PNAs) are nucleic acid mimics that have potential for modulating gene expression via antisense or antigene mechanism or can be used as diagnostic and molecular biology tools [3, 4]. Moreover, PNAs may also find various interesting applications in chemistry and technology, eg. as electrochemical biosensors, and in optical data storage [5-7]. In PNA the deoxyribose phosphate backbone of the nucleic acid is replaced by a ...
