Figure 6

DOS spectrum of (a): pristine CNT (6, 5) and CNT (6, 5) + DNA nucleotide bases complex structure; (b): pristine CNT (7, 6) and CNT (7, 6) + DNA nucleotide bases complex structure.

DOS spectrum of (a): pristine CNT (6, 5) and CNT (6, 5) + DNA nucleotide bases complex structure; (b): pristine CNT (7, 6) and CNT (7, 6) + DNA nucleotide bases complex structure.