The prophylactic effect of Ranunculus laetus (Wall)-mediated silver nanoparticles against some Gram-positive and Gram-negative bacteria

Bulletin of the National Research Centre

Table 3 MIC of R. laetus-mediated silver nanoparticles

Concentration (mg/ml)	Absorbance (nm) using RL AgNPs E.coli	Absorbance (nm) using RL AgNPs S. aureus	Absorbance (nm) using RL AgNPs P. aeruginosa	Absorbance (nm) using RL AgNPs B. subtilis	Absorbance (nm) using streptomycin
1 × 10⁻⁵	0.761 ± 0.027	0.798 ± 0.061	0.739 ± 0.043	0.381 ± 0.032	1.028 ± 0.048
1 × 10⁻⁴	0.589 ± 0.045	0.641 ± 0.037	0.512 ± 0.053	0.307 ± 0.029	0.975 ± 0.052
1 × 10⁻³	0.543 ± 0.034	0.487 ± 0.027	0.483 ± 0.029	0.262 ± 0.032	0.527 ± 0.025
1 × 10⁻²	0.306 ± 0.023	0.426 ± 0.049	0.367 ± 0.052	0.215 ± 0.058	0.516 ± 0.035
1 × 10⁻¹	0.208 ± 0.047	0.355 ± 0.051	0.308 ± 0.056	0.179 ± 0.023	0.283 ± 0.040
1 × 10⁰	0.197 ± 0.020	0.232 ± 0.023	0.252 ± 0.038	0.164 ± 0.035	0.247 ± 0.028
1 × 10¹	0.183 ± 0.016	0.204 ± 0.061	0.229 ± 0.031	0.128 ± 0.021	0.193 ± 0.041