Molecular gates in mesoporous bioactive glasses for the treatment of bone tumors and infection



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Polo, Lorena and Gomez Cerezo, Natividad and Vivancos, Jose Luis and Sancenón, Félix and Arcos, Daniel and Vallet Regí, María and Martínez Máñez, Ramón (2016) Molecular gates in mesoporous bioactive glasses for the treatment of bone tumors and infection. Acta Biomaterialia . ISSN 1742-7061 (In Press)

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Silica mesoporous nanomaterials have been proved to have meaningful application in biotechnology and biomedicine. Particularly, mesoporous bioactive glasses are recently gaining importance thanks to their bone regenerative properties. Moreover, the mesoporous nature of these materials makes them suitable for drug delivery applications, opening new lines in the field of bone therapies. In this work, we have developed innovative nanodevices based on the implementation of adenosine triphosphate (ATP) and e-poly-l-lysine molecular gates using a mesoporous bioglass as an inorganic support. The systems have been previously proved to work properly with a fluorescence probe and subsequently with an antibiotic(levofloxacin) and an antitumoral drug(doxorubicin). The bioactivity of the prepared materials has also been tested, giving promising results. Finally, in vitro cell culture studies have been carried out; demonstrating that this gated devices can provide useful approaches for bone cancer and bone infection treatments.

Statement of Significance

Molecular-gated materials have recently been drawing attention due to their applications in fields as biomedicine and molecular recognition. For the first time as we are aware, we report herein a new enzymatic responsive molecular-gated device consisting in a mesoporous bioactive glass support implemented with two different molecular gates. Both controlled drug delivery properties and apatite-like phase formation ability of the device have been demonstrated, getting promising results. This approach opens up the possibility of developing new stimuli-responsive tailored biomaterials for bone cancer and infection treatments as well as regenerative bone grafts.

Item Type:Article
Additional Information:

RESEARCHER ID M-3378-2014 (María Vallet Regí)
ORCID 0000-0002-6104-4889 (María Vallet Regí)

Uncontrolled Keywords:Biomaterials Controlled release Gated mesoporous bioactive glasses
Subjects:Sciences > Chemistry > Materials
Sciences > Chemistry > Chemistry, Inorganic
ID Code:40770
Deposited On:24 Jan 2017 12:46
Last Modified:10 Dec 2018 00:01

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