Fig. 3From: A resonance Rayleigh scattering sensor for sensitive differentiation of telomere DNA length and monitoring special motifs (G-quadruplex and i-motif) based on the Ag nanoclusters and NAND logic gate responding to chemical input signalsComparison of absorption spectra (a Tel 64; b PEI–Ag NCs; c PEI–Ag NCs/Tel 64) and RRS spectrum (d PEI–Ag NCs/Tel 64)Back to article page