Figure 5

The UV–vis spectra of a GNRs (0.24 mg) interaction in the absence (a) and presence of different concentrations of glucose (b) 5.6 mM; (c) 6.7 mM; each sample is recorded after reacting the GNRs with variable amounts of glucose for 2 min. b The UV–vis spectra of GNRs (0.40 mg) interaction in the absence (a) and presence of different concentrations of glucose (b) 6.7 mM; (c) 8.3 mM; each sample is recorded after reacting GNRs with variable amounts of glucose for 2 min