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Oxygen-producing gellan gum hydrogels for dual delivery of either oxygen or peroxide with doxorubicin

Newland, Benjamin, Baeger, Marcel, Eigel, Dimitri, Newland, Heike and Werner, Carsten 2017. Oxygen-producing gellan gum hydrogels for dual delivery of either oxygen or peroxide with doxorubicin. ACS Biomaterials Science & Engineering 3 (5) , pp. 787-792. 10.1021/acsbiomaterials.7b00078

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Abstract

Hypoxic environments in the core of tumors can give rise to resistance against anticancer therapeutics. Oxygen-producing biomaterials may be able to improve chemotherapeutic efficiency by locally disrupting the hypoxic environment. We hypothesized that gellan gum hydrogels could be loaded with both a solid peroxide and the chemotherapeutic drug doxorubicin, to release both oxygen and doxorubicin simultaneously. We show that calcium peroxide physically cross-links gellan gum into a hydrogel, which when loaded with catalase raises the dissolved oxygen content of media for up to 64 h. Additionally, doxorubicin could be loaded into the hydrogel in situ, allowing release in well-defined quantities.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Pharmacy
Publisher: ACS Publications
ISSN: 2373-9878
Date of First Compliant Deposit: 31 October 2017
Date of Acceptance: 10 April 2017
Last Modified: 11 May 2018 18:28
URI: http://orca.cf.ac.uk/id/eprint/106096

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