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Hyaluronic acid (HA) containing CC double bond in positions 4 and 5 of N-acetyl-glucosamine ring (ΔHA) is an unique material, which could be used for biomedical applications and cosmetics. The main advantage of the CC double bond is its ability to react with a wide range of oxidation agents. Location of the CC double bond directly on the glucopyranose ring allows to change the chemical capabilities...
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