Antimicrobial effects of zero-valent iron nanoparticles on gram-positive Bacillus strains and gram-negative Escherichia coli strains

Table 3 Fine structural parameters of B. subtilis 3610, B. thuringiensis 407, oxidized Fe NPs, E. coli K12, and E. coli ATCC11634

Sample	Shell (1st)	CN (± 0.05 Å)^a	R (± 0.01 Å)^b	Δ σ² (Å²)^c	R factor
Bs 3610	Fe–O	5.63	1.97	0.01117	0.00427
Bt 407	Fe–O	3.74	1.99	0.00545	0.00327
Oxidized Fe(ZVI) NPs	Fe–O	4.23	1.98	0.01093	0.00027
Ec K12	Fe–O	3.67	1.98	0.00295	0.00226
Ec ATCC11634	Fe–O	3.66	1.99	0.00226	0.00544

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