Table 1. Sizes of AgNPs and antibacterial efficiency of AgNPs in different hydrothermal processes.

		Inhibition zone diameter (cm)
AgNPs samples	Size of AgNPs (nm)	S. epidermidis (gram positive bacteria)	P. aeroginosa (gram negative bacteria)
100 °C—6 h	70.70 ± 22	3.65 ± 0.50*	3.90 ± 0.42*
150 °C—6 h	79.47 ± 22	1.70 ± 0.43	1.60 ± 0.28
200 °C—6 h	161.66 ± 53	1.50 ± 0.42	1.40 ± 0.32
100 °C—12 h	95.25 ± 23	1.72 ± 0.42	1.44 ± 0.29
150 °C—12 h	149.55 ± 47	3.60 ± 0.56*	3.15 ± 0.49*
200 °C—12 h	192.02 ± 53	3.90 ± 0.84*	3.45 ± 0.21*

Notes.

^*p < 0.01 compared with an AgNO₃ control.