Biosynthesis, Characterization of Some Combined Nanoparticles, and Its Biocide Potency against a Broad Spectrum of Pathogens

Table 4

Biocide activity of NPs, metal precursors, and antibiotics in addition to collective activity influence on biofilm and algal growth.

	Biofilm type		P. aeruginosa	S. aureus	C. vulgaris
	Treatment (μg/ml)		Inhibition (%)
NP type	Ag	150	60.25	70.62	56.37
		300	89.16	94.57	94.56
	Co	150	44.77	48.09	24.40
		300	76.78	80.65	49.28
	Ni	150	47.82	49.98	39.71
		300	74.24	83.98	59.81
	Zn	150	49.95	55.13	44.50
		300	73.68	83.56	73.21
Combined	Ag, Co, Ni, and Zn	150	78.52	85.73	75.18
Metal precursor	Ag	150	44.68	50.32	38.79
		300	63.68	78.64	65.87
	Co	150	25.97	34.71	7.08
		300	57.01	61.14	28.23
	Ni	150	27.69	38.54	−16.75
		300	51.98	65.14	4.31
	Zn	150	21.46	30.11	−46.41
		300	50.76	59.04	−11.00
Antibiotics	Rifamycin	150	52.74	59.68	ND
		300	81.18	93.23
	Tetracycline	150	55.61	63.74
		300	87.61	97.36
	Streptomycin	150	50.18	57.69
		300	79.47	90.85
	Nystatin	150	ND		53.46
		300			97.48