Table of Contents
Antioxidants, Volume 8, Issue 2 (February 2019)
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Cover Story (view full-size image) The antioxidant activity of ascorbic acid (vitamin C) is counteracted by its reactivity with [...] Read more. The antioxidant activity of ascorbic acid (vitamin C) is counteracted by its reactivity with oxygen, which turns into superoxide, becoming prooxidant. Vitamin C is also unproductively depleted, particularly in water at physiologic pH, where it is dissociated to the less-stable ascorbate. Loading ascorbic acid into the alkaline inner lumen of natural halloysite nanotubes protects it from oxygen and allows slower release in time to quench peroxyl radicals. Through this method, antioxidant activity is boosted 4-fold! View Paper here.