Table 1.

Some examples of mixed and doped metal oxide nanoparticles that were tested for their antibacterial activity

Metal oxides nanoparticle	Synthesis/doping method	Bacterial strain tested	References
Zn/Fe oxide	Sol gel	S. aureus; E. coli	[173]
Zn/Mg oxide	Combustion	E. coli; B. subtilis	[134]
ZnO/Au	Photo-reduction	E. coli; S. aureus	[174]
TiO2/Ag	Reactive magnetron sputtering	S. aureus	[175]
Fe3O4/Ag	Template based	S. aureus	[176]
Ta-doped ZnO	Sol gel	B. subtilis; S. aureus; E. col; P. aeruginosa	[177]
Fe-doped ZnO	Sol gel	E. coli	[178]
Ce-doped ZnO	Sonochemical	E. coli	[179]
Nd-doped ZnO	Co-precipitation	E. coli; K. pneumoniae	[180]
Zn-doped CuO	Sonochemical	E. coli; S. aureus	[181]
Zn-doped TiO2	Electrospinning	E. coli; S. aureus	[182]
Ag-doped TiO2	TiO2-Sol gel Ag-doped TiO2-Solvothermal	E. coli; S. aureus	[183]
Cu-doped TiO2	Flame Synthesis	M. smegmatis; S. oneidensis	[184]
Cu-doped TiO2	Co-precipitation	E. coli	[185]
Li-doped MgO	Sol gel	E. coli	[186]
Cu-doped MgO	Co-precipitation	E. coli	[187]
Ag-doped SiO2	SiO2-Sol gel Doped SiO2- Co-precipitation	P. aeruginosa; S. aureus; E. coli	[188]
Mn- and Fe-doped ZnO	Co-precipitation	S. aureus; E. coli; K. pneumoniae; S. typhi; P. aeruginosa; B. subtilis	[189]
Zn- and/or Y-doped TiO2	Sol gel	C. albicans; S. aureus	[190]
${\text{Zn/Ce/SO}}_4^{2-}$-doped TiO2	Sol gel	E. coli; S.aureus	[191]
Ag-TiO2-doped SiO2	Sol gel	E. coli	[192]