alexa An enzyme-modulated oxygen-producing micro-system for regenerative therapeutics.
General Science

General Science

Journal of Biotechnology & Biomaterials

Author(s): Abdi SI, Ng SM, Lim JO

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Abstract This study suggests the idea of treating oxygen as a drug in a biological environment and demonstrates that it will exhibit a dosage-dependent trend. To accomplish this, a micro-system was fabricated, having hydrogen peroxide as the oxygen-generating source, which was decomposed using catalase, a common enzyme found in nearly all living organisms. The relevance of the proposed micro-system was justified using cell viability assays under well-controlled and fixed conditions. This study was performed under two controlled conditions, normoxia and hypoxia, and tests were carried out using three different configurations of samples under each condition: direct addition of H(2)O(2), H(2)O(2) encapsulated with single layer, and H(2)O(2) encapsulated with double layers. This study demonstrates that the elegantly designed micro-system managed to control the decomposition of H(2)O(2) and avoided direct contact with cells, while also maintaining cell viability under a low oxygen environment. Copyright © 2011 Elsevier B.V. All rights reserved. This article was published in Int J Pharm and referenced in Journal of Biotechnology & Biomaterials

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