To develop and evaluate a Carbopol-based hydrogel containing Moringa oleifera root extract for antioxidant and antimicrobial diabetic wound management

Wound healing in people with diabetes is notoriously difficult. High blood sugar damages blood vessels and nerves, while oxidative stress — a kind of cellular damage caused by unstable molecules called free radicals — and persistent bacterial infection combine to keep wounds open far longer than normal. Researchers in this study set out to solve a practical formulation problem: how do you turn a plant extract into a stable, skin-friendly gel that can be applied directly to a wound? They chose the root extract of Moringa oleifera and incorporated it into a Carbopol-based hydrogel, a type of water-swollen polymer network widely used in pharmaceutical gels because it clings to skin, releases drugs slowly, and tolerates a range of active ingredients. Six different gel formulations, labelled F1 through F6, were prepared by varying the ingredient ratios, then tested in the laboratory for physical properties, how quickly the extract was released, how well it neutralised free radicals, and how effectively it killed or inhibited bacteria. The standout formulation, F4, hit a pH of 6.2 — close to normal skin pH, which matters for patient comfort and wound compatibility — and released 98 percent of its active content within six hours. The antioxidant activity reached approximately 70 percent, and the gel created a 24 mm zone of bacterial inhibition in antimicrobial testing. These results suggest that a Moringa root extract hydrogel could address two of the core problems in diabetic wound care simultaneously: oxidative damage and infection. The study is entirely laboratory-based, so clinical performance in actual patients remains unknown.