Table 1.

Characteristics and stability (ζ in millivolts) of the produced nanosilver particles after 90 days of production for the three selected isolates.

Isolates	Observation and color		τ (day)	ζ (mV0)	ζ (mV90)	Peakmax	Size of Ag
	Fresh	Storage				UV-vis (nm)	TEM (nm)
SHE	Brown	Dark brown	Stable	−12.5	−22	440	4–12
S11P	Brown	Dark brown	Stable	−12.5	−15.9	442	4–15
S5	Light brown	Brown	20	−30	−9.5	453	4–30