( i ) when ds dna is adsorbed , a significantly higher number of dna segments is anchored in the positively charged electrode surface than in the surface bearing a negative charge , ( ii ) in the region t , especially adsorbed labile regions of ds dna are opened in the electrode surface , which are present in ds dna already in the bulk of the solution , ( iii ) in the narrow region of potentials in the vicinity of the zero charge potential a higher number of ds dna segments can be opened , probably as a consequence of the strain which could act on the ds dna molecule in the course of the segmental adsorption/desorption process .
C0000702
a
C0012854
dna molecule