Bacteria Antibiotic Known MIC(mg/l) Our MIC(mg/l) Escherichia coli(ATCC 25922) Ampicllin (Bactericidal) 2-8 [22] 2 Chloramphenicol (Bacteriostatic) 2-8 [22] 8 Psuedomonas aeruginosa(ATCC 27853) Gentamicin (Bactericidal) 1-4 [24] 1 Amikacin (Bacteriostatic) 2-8 [22,26] 4 Staphylococcus aureus(ATCC 29213) Ampicillin (Bactericidal) 0.5-2 [23] 0.5 Chloramphenicol (Bacteriostatic) 2-8 [25] 2

Table 2: Comparison of MIC values obtained using our method to known MIC values for all combinations of antibiotic and bacterial strains tested.