Results and discussion Investigations into the possible

3. Results and discussion
3.1. Investigations into the possible mechanism of the proposed ECL method
Fig. 1. The Fosaprepitant transfer behaviors between luminol and [Ru(bpy)3]2+ with different [Ru(bpy)3]2+ concentration. The concentration of luminol kept constant at 3.3 × 10−5 mol/L. [Ru(bpy)3]2+ concentration is (a) 6.7 × 10−6 mol/L; (b) 1.3 × 10−5 mol/L; (c) 2.0 × 10−5 mol/L; (d) 3.3 × 10−5 mol/L; (e) 4.0 × 10−5 mol/L; (f) 4.7 × 10−5 mol/L.Figure optionsDownload full-size imageDownload as PowerPoint slide
Scheme 1. The schematic diagram of the luminol-[Ru(bpy)3]2+ DNA-ECL energy transfer sensing system.Figure optionsDownload full-size imageDownload as PowerPoint slide
Fig. 2. The ECL signal of (a) Luminol–[Ru(bpy)3]2+–ssDNA; (b) Luminol–[Ru(bpy)3]2+–dsDNA; luminol concentration: 8.3 × 10−6 mol/L and [Ru(bpy)3]2+ concentration: 8.3 × 10−6 mol/L; target complementary DNA concentration: 1.0 × 10−12 mol/L; hybridization time: 30 min; Tris–HCl buffer solution: pH 8.5.Figure optionsDownload full-size imageDownload as PowerPoint slide
the nano-sized semiconducting gas sensors.}