Figure 7
From: Iron specificity of a biosensor based on fluorescent pyoverdin immobilized in sol-gel glass
Fluorescence quenching of pyoverdin immobilized in: A) sol-gel A, B) sol-gel B, C) sol-gel C. Data points are mean values of fluorescence 10 min. after the addition of iron (II or III). Error bars indicate ± standard deviation. Means labeled with the same letter are not significantly different (α = 0.05). The initial fluorescent intensity (before addition of iron) was set to 100%. (ex/em = 382/480 nm)