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Cobalt‐containing spherical glass nanoparticles for therapeutic ion release
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Barrioni, Breno R., Carvalho, Sandhra M., Naruphontjirakul, Parichart, Norris, Elizabeth, Kelly, Nicole L., Hanna, John V., Jones, Julian R. and Pereira, Marivalda de M. (2022) Cobalt‐containing spherical glass nanoparticles for therapeutic ion release. Journal of the American Ceramic Society, 105 (3). pp. 1765-1777. doi:10.1111/jace.17916 ISSN 0002-7820.
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Official URL: http://dx.doi.org/10.1111/jace.17916
Abstract
Bioactive glass nanoparticles (BGNPs) can be internalized by cells, allowing the intracellular release of dissolution products with therapeutic benefit. Different therapeutic ions can be incorporated into the glass network that can promote angiogenesis via simulation of hypoxia conditions and consequent activation of pro-angiogenic genes. Here, novel monodispersed spherical dense BGNPs were obtained by a modified Stöber method with the SiO2–CaO–CoO composition, with diameters of 92 ± 1 nm, with cobalt as the pro-angiogenic ion. The presence of Co2+ species and the role of Co and Ca as network modifiers in the silica glass were confirmed by X-ray photoelectron spectroscopy and 29Si solid-state magic-angle spinning nuclear magnetic resonance, respectively. Controlled Co2+ ion release was observed in culture media, and no cytotoxicity was observed by (4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide cell viability assay on human osteosarcoma cells in direct contact with the nanoparticles. This study demonstrated that Co2+ ions can be incorporated into dense and spherical BGNPs, and these materials exhibit great potential as intracellular ion delivery systems with therapeutic properties.
Item Type: | Journal Article | ||||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||
SWORD Depositor: | Library Publications Router | ||||||||
Journal or Publication Title: | Journal of the American Ceramic Society | ||||||||
Publisher: | Wiley-Blackwell Publishing Ltd. | ||||||||
ISSN: | 0002-7820 | ||||||||
Official Date: | March 2022 | ||||||||
Dates: |
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Volume: | 105 | ||||||||
Number: | 3 | ||||||||
Page Range: | pp. 1765-1777 | ||||||||
DOI: | 10.1111/jace.17916 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||
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