Antimicrobial Activity of Amino Acid-Capped Zinc and Copper Sulphide Nanoparticles

Table 1

Minimum inhibitory concentration (MIC) of amino acid-capped copper and zinc sulphide nanoparticles (mg/mL).

Bacterial strains	Nanoparticles
	Copper				Zinc
	Unc-CuS	Aln-CuS	Asp-CuS	Unc-ZnS	Aln-ZnS	Asp-ZnS
S. aureus	<0.05	0.1	0.1	0.20	3.125	6.25
E. faecalis	0.39	0.78	0.78	1.56	25	25
K. pnuemoniae	0.195	0.39	0.39	0.40	25	25
P. aeruginosa	3.125	1.56	1.56	0.78	0.78	0.78
C. albicans	1.56	1.56	0.78	0.2	6.25	25
C. neoformans	0.39	3.125	0.391	1.56	12.5	6.25

Neomycin MIC (μg/mL): S. aureus: <0.4; E. faecalis: 6.25; K. pnuemoniae: 12.5; P. aeruginos: <0.4; C. albicans: nd; C. neoformans: 3.125.