Fig. 2From: 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 signalsRRS spectra of PEI–Ag NCs upon addition of different concentrations of G-rich strands and the corresponding linear ranges (a, b Tel 10; c, d Tel 22; e, f Tel 40; g, h Tel 64)Back to article page