Fig. 3: Outstanding peroxide-like activity of AgNCs associated with massive free-radical production. | NPG Asia Materials

Fig. 3: Outstanding peroxide-like activity of AgNCs associated with massive free-radical production.

From: Amphiphilic silver nanoclusters show active nano–bio interaction with compelling antibacterial activity against multidrug-resistant bacteria

Fig. 3

a and b Determination of peroxidase-like properties of AgNCs and AgNPs. The color change and the maximum absorbance values at 370 and 652 nm for the TMB reactions are shown in a and b, respectively. c Relative ROS production in P. aeruginosa cells upon exposure to AgNPs and AgNCs at 6.4 μg/mL over time (n = 3). The untreated control was set as 1.0. d The amount of total ATP production by P. aeruginosa cells after exposure to AgNPs and AgNCs at 6.4 μg/mL for 6 h (n = 3). e Relative ATP levels of P. aeruginosa cells upon AgNPs and AgNCs at 6.4 μg/mL for 6 h (n = 3) determined by normalizing to according OD600 values, and the untreated control was set as 1.0. An asterisk (*) denotes P < 0.05, and a pound sign (#) indicates P < 0.001.

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