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Table 2 Antimicrobial activity of natural pumice and NP-BHA composites

From: Fabrication of naturel pumice/hydroxyapatite composite for biomedical engineering

Time
(h)
NP
(CFU/ml)
5 wt% NP-BHA 10 wt% NP-BHA Control
(E. faecalis)
0 6.7 × 104 7.4 × 104 7.0 × 104 5.6 × 104
6 8.3 × 107 9.8 × 107 8.3 × 107 1.1 × 108
24 5.0 × 108 1.3 × 109 3.0 × 108 1.8 × 109