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Figure 1 | Nanoscale Research Letters

Figure 1

From: Enhanced antibacterial and anti-biofilm activities of silver nanoparticles against Gram-negative and Gram-positive bacteria

Figure 1

Characterization of AgNPs synthesized using A. cobbe leaf extracts. The absorption spectra of AgNPs exhibited a strong, broad peak at 420 nm. This band was attributed to the surface plasmon resonance of the AgNPs. The images show the spectrum of AgNO3(1), leaf extract (2), and mixture of AgNO3 and leaf extract (3) at 6 h exposure. After exposure for 6 h, the color of the colloidal solution of AgNPs turned from green to dark brown, indicating the formation of AgNPs.

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