Reduction of Silver Ions by Cell Free Extracts of Westiellopsis sp.

Figure 3

Scanning electron micrograph of silver nanoparticles. WD: working distance between the sample surface and the low portion of the lens which should be greater than 4 mm (12.5 mm); Mag: magnification at 10000x; HV: high voltage (15 kV); Mode: secondary electron (SE) mode.