Fig. 7. Photomicrographs (20×) of haematoxylin–eosin stained histological dermal sections of the wound areas for the (a) control group, (b) standard group, (c) ZnOTP1% group and (d) ZnOTP2% group. DE – disrupted epidermis; SE – separation of epidermis from dermis; IC – inflammatory cells; PC – pus cells; F – fibroblast; NV – neovascularization; C – collagen; CR – complete re-epithelialization; HF – hair follicle; K – keratinocytes.