Figure 1.

The enzymatic phosphorylation of glucose to glucose-6-phosphate by hexokinase, measured using BSI. (a) The real-time measurement of four glucose solutions (0.4, 1.0, 1.6 and 2.0 mM). (b) The end-point values in refractive index units vs. initial glucose concentration. Linear fit (R² > 0.99, slope 0.99 × 10⁻⁵ RIU/mM). Figure 1a is reproduced from reference [8] with permission from Elsevier.