Fig. 1

RRS spectra of PEI–Ag NCs/telomere DNA (Tel 10, 22, 40 and 64) system. a PEI–Ag NCs/Tel 64, b PEI–Ag NCs/Tel 40, c PEI–Ag NCs/Tel 22, d Tel 64, e Tel 40, f Tel 22, g PEI–Ag NCs/Tel 10, h Tel 10, i PEI–Ag NCs. The G-rich strands are 30 nM