[A] Representative Masson's trichrome staining images of wound biopsy samples at Days 7, 14 and 21. (Arrows: Yellow- Neovascularisation, Black- Glandular Adnexa). Scale bar: 100 μm. Treatments: Control (0.1 M PBS, pH 7.4), LLKKK18 – Chitosan NP (LLKKK18 peptide entrapped Chitosan nanoparticles), Tylotoin – Chitosan MP (Tylotoin peptide entrapped Chitosan microparticles), PLGA/Collagen-NF (PLGA/Collagen nanofibers), NF-NP-MP (Bioactive peptides laden nano/micro-sized particles enriched PLGA/Collagen nano-fiber mat).