Comparative Assessment of Antimicrobial Efficiency of Ionic Silver, Silver Monoxide, and Metallic Silver Incorporated onto an Aluminum Oxide Nanopowder Carrier

Table 1

Results of the particle stereological analysis of the Al₂O₃-Ag⁺, Al₂O₃-Ag₂O, and Al₂O₃-Ag nanopowders produced by thermal decomposition at 700°C for 24 h followed by reduction in H₂ conducted at 700°C for 2 h.

Sample numbers; (Ag concentration)	Al2O3-Ag^+ particle		Al2O3-Ag2O particle		Al2O3-Ag particle
	𝑑2/nm	CV (𝑑2)/[%]	𝑑2/nm	CV (𝑑2)/[%]	𝑑2/nm	CV (𝑑2)/[%]
0 (0.00 wt%)	65	18	65	20	—	—
1 (0.30 wt%)	55	20	35	28	49	28
2 (1.35 wt%)	54	23	39	23	45	34
3 (2.84 wt%)	51	26	37	27	41	36
4 (12.55 wt%)	48	32	38	30	59	30