Figure 6: Single-day (12-hour) swine experiment. The top panel (6a) shows 4 sensors (31-gauge, 100-micron fiber with PEG matrix and acrylodan-labeled GGBP) placed subcutaneously (>3mm) Solid lines are sensor tracings; the bold line with solid circles displays reference blood glucose as measured with a YSI clinical analyzer. The bottom panel (6b) shows the same data plotted on a Clarke-error grid.