Table 2.

Inhibition zone of AgNPs against Gram -ve and Gram + ve bacteria.

Bacteria	Diatoms
	Thalassiosira	Skeletonema	Chaetceros	Control
Bacillus subtilis	<15.625 μg/mL	<15.625 μg/mL	<15.625 μg/mL	12.5 μg/mL
S. pneumoniae	<7.81 μg/mL	7.81 μg/mL	<7.81 μg/mL	12.5 μg/mL
E. coli	<16 μg/mL	2 μg/mL	4 μg/mL	<5.2125 μg/mL
S. aureus	<15.625 μg/mL	<15.625 μg/mL	<15.625 μg/mL	8.35 μg/mL
Aeromonas	3.125 μg/mL	3.125 μg/mL	6.25 μg/mL	5.21 μg/mL