Fig. 5. Emission spectra of RB treated with different substances. Experimental conditions: all measurements were performed at 25 °C with excitation at 510 nm. (a) RB; (b) RB + aptamer; (c) RB + acetamiprid; (d) RB + aptamer + acetamiprid; (e) RB + NaCl; (f) RB + NaCl + aptamer; (g) RB + NaCl + acetamiprid.