Table 2 Growth bacteria counts and log reduction (relative to control count 950 × 1010 CFU/ml) under effect of PEPs generated from PVDF and PVDF-TPU nanofibers at set of frequencies (f = 0.5, 1, 1.5, and 2 Hz).
From: Innovative antibacterial electrospun nanofibers mats depending on piezoelectric generation
Frequency f, Hz | Number of pulses | Stretching time, s | Nanofiber sample | Bacteria count | Log reduction |
|---|---|---|---|---|---|
0.5 | 15 | 30 | PVDF | 950 × 1010 | 0.035 |
15 | 30 | PVDF-TPU | 760 × 1010 | 0.132 | |
1.0 | 30 | 30 | PVDF | 101 × 109 | 2.009 |
30 | 30 | PVDF-TPU | 910 × 108 | 2.054 | |
1.5 | 30 | 20 | PVDF | 860 × 108 | 2.078 |
45 | 30 | PVDF-TPU | 800 × 107 | 3.110 | |
2.0 | 30 | 15 | PVDF | 606 × 108 | 2.412 |
60 | 30 | PVDF-TPU | 191 × 106 | 4.732 |
