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Mesoporous bioactive glass embedding propolis and cranberry antibiofilm compounds
Author(s) -
GalarragaVinueza Maria Elisa,
MesquitaGuimarães Joana,
Magini Ricardo S.,
Souza Júlio C. M.,
Fredel Marcio C.,
Boccaccini Aldo R.
Publication year - 2018
Publication title -
journal of biomedical materials research part a
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.849
H-Index - 150
eISSN - 1552-4965
pISSN - 1549-3296
DOI - 10.1002/jbm.a.36352
Subject(s) - propolis , materials science , simulated body fluid , mesoporous material , bioactive glass , apatite , particle size , chemical engineering , nuclear chemistry , scanning electron microscope , mineralogy , organic chemistry , chemistry , composite material , food science , engineering , catalysis
Abstract The aim of this study was to evaluate the chemical reactivity of 58S mesoporous bioactive glass (MBG) particles in as‐synthesized condition and after embedding propolis and cranberry antibiofilm compounds at different concentrations. MBG 58S was synthesized by alkali sol‐gel method with the addition of the triblock pluronic copolymer P123 as surfactant. Samples were characterized by physicochemical properties measurement, N 2 adsorption/desorption analysis, and field emission gun scanning electron microscopy (FEGSEM) observations. MBG powders were immersed into 5 and 10 µg/mL propolis or cranberry solutions for 24 h. The chemical reactivity of the specimens was evaluated by FEGSEM, EDX, FTIR, Ca/P ratio, XRD, and sample weight gain analysis after being immersed in simulated body fluid (SBF) for 8, 24, and 72 h. MBG particles exhibited the expected chemical composition with a particle size distribution ranging from 1.44 to 955 µm, and a mean particle size of 154 µm. MBG particles exhibited a pore volume of 0.8 cc/g, pore radius of ∼2 nm, and surface area of 350.2 m 2 /g, according to BJH and BET analyses. A hydroxyl‐carbonate apatite (HCAp) layer was formed on all samples after SBF immersion for 72 h. Pure MBG showed the highest chemical reactivity after 72 h, with the resulting apatite layer exhibiting a Ca/P ratio of ∼1.6 in accordance to stoichiometric biological apatite. MBG embedding propolis and cranberry can be considered for future microbiological analysis since the presence of propolis or cranberry did not interfere with MBG's ability to develop a HCAp layer, which is an essential feature for bone regeneration applications. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 1614–1625, 2018.