highly significantp < 0.0001
A decreasing trend was seen in the diameter of the nanofibres upon adding more micro-capsules, with 16% PMD micro-capsules showing the smallest average diameter and a large size distribution (386 ± 55 nm) against the blank (408 ± 67 nm). The results presented in figure 3 b–d show that the emulsion spun nanofibres with permethrin, catnip and chilli oil had a highly significant effect on the average diameter of the resulting nanofibres (all p < 0.0001).