Fig. 7From: Self-assembled, hemin-functionalized peptide nanotubes: an innovative strategy for detecting glutathione and glucose molecules with peroxidase-like activitya UV‒vis spectra of different concentrations of glucose in human serum samples (0.1–1 mM). b Calibration curve for glucose, which shows a linear relationship. Data represent means ± SDs. (n = 3)Back to article page