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Fig. 2 | Nanoscale Research Letters

Fig. 2

From: Horseradish Peroxidase-Encapsulated Hollow Silica Nanospheres for Intracellular Sensing of Reactive Oxygen Species

Fig. 2

a–c Time-dependent fluorescence intensity of the reaction of selected reactive oxygen species (ROS) with a dihydrorhodamine 123 (DHR123), b DHR123 + horseradish peroxidase (HRP), and c DHR123 + horseradish peroxidase-encapsulated HSNs (HRP@HSNs). d Enhanced intensity ratio of the reaction of selected ROS with DHR123 + HRP and DHR123 + HRP@HSNs at 1 h. Data shown are for 20 μM of DHR123, 400 ng/mL of HRP, 50 μg/mL of HRP@HSNs, and 100 μM of ROS. (*p < 0.05 versus the control group at corresponding time points)

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