Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/42483

TitleIn vitro bioactivity studies of ceramic structures isolated from marine sponges
Author(s)Barros, Alexandre António Antunes
Aroso, Ivo Manuel Ascensão
Silva, Tiago José Quinteiros Lopes Henriques
Mano, J. F.
Duarte, Ana Rita C.
Reis, R. L.
KeywordsMarine sponge
Bioactivity
Hydroxyapatite
Bioactive glass
Bioceramics
Issue dateAug-2016
PublisherIOP Publishing
JournalBiomedical Materials
CitationBarros A. A., Aroso I. M., Silva T. H., Mano J. F., Duarte A. R. C., Reis R. L. In vitro bioactivity studies of ceramic structures isolated from marine sponges, Biomedical Materials, Issue 11, pp. 045004, doi:10.1088/1748-6041/11/4/045004, 2016
Abstract(s)In this work, we focused on the potential of bioceramics from different marine spongesâ namely Petrosia ficiformis, Agelas oroides and Chondrosia reniformisâ for novel biomedical/industrial applications. The bioceramics from these sponges were obtained after calcination at 750 °C for 6 h in a furnace. The morphological characteristics were evaluated by scanning electron microscopy (SEM). The in vitro bioactivity of the bioceramics was evaluated in simulated body fluid (SBF) after 14 and 21 d. Observation of the bioceramics by SEM after immersion in SBF solution, coupled with spectroscopic elemental analysis (EDS), showed that the surface morphology was consistent with a calcium-phosphate (Ca/P) coating, similar to hydroxyapatite crystals (HA). Evaluation of the characteristic peaks of Ca/P crystals by Fourier transform infrared spectroscopy and x-ray diffraction further confirmed the existence of HA. Cytotoxicity studies were carried out with the different ceramics and these were compared with a commercially available Bioglass®. In vitro tests demonstrated that marine bioceramics from these sponges are non-cytotoxic and have the potential to be used as substitutes for synthetic Bioglass®.
TypeArticle
URIhttp://hdl.handle.net/1822/42483
DOI10.1088/1748-6041/11/4/045004
ISSN1748-605X
Publisher versionhttp://iopscience.iop.org/article/10.1088/1748-6041/11/4/045004/meta;jsessionid=CB9B36AA8E86783180C59800E8CFF64F.c3.iopscience.cld.iop.org
Peer-Reviewedyes
AccessRestricted access (UMinho)
Appears in Collections:3B’s - Artigos em revistas/Papers in scientific journals

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