Effect of Surface Charge and Hydrophobicity Modulation on the Antibacterial and Antibiofilm Potential of Magnetic Iron Nanoparticles

Table 4

(a) Effect (% reduction) of OA-MNP and ATMPS-MNP on preformed biofilm for S. aureus and E. coli. (b) Effect (% reduction) of OA-MNP and ATMPS-MNP on biofilm formation for S. aureus and E. coli.

(a)

MNPs (µg/mL)	OA-MNPs/S. aureus	APTMS-MNPs/S. aureus	OA-MNPs/E. coli	APTMS-MNPs/E. coli
15.625	29	19	17	9
31.25	53	24	33	15
62.5	70	41	45	39
125	76	52	55	45
250	79	60	62	58
500	80	72	70	64
1000	86	74	79	72
2000	94	89	93	77

(b)

MNPs (µg/mL)	OA-MNPs/S. aureus	APTMS-MNPs/S. aureus	OA-MNPs/E. coli	APTMS-MNPs/E. coli
15.625	62	30	48	34
31.25	67	33	64	35
62.5	86	43	67	38
125	86	50	81	39
250	90	74	87	44
500	92	79	92	51
1000	93	86	93	69
2000	94	91	96	74