TU Darmstadt / ULB / TUbiblio

Tailoring the viscoelastic properties of injectable biocomposites: A spectroscopic assessment of the interactions between organic carriers and bioactive glass particles

Gonzalo-Juan, I. and Tulyaganov, D. U. and Balan, C. and Linser, R. and Ferreira, J. M. F. and Riedel, R. and Ionescu, E. (2016):
Tailoring the viscoelastic properties of injectable biocomposites: A spectroscopic assessment of the interactions between organic carriers and bioactive glass particles.
In: Materials & Design, Elsevier Science Publishing, pp. 45-50, 97, ISSN 02641275,
[Online-Edition: http://doi.org/10.1016/j.matdes.2016.02.085],
[Article]

Abstract

Injectable bioglass (BG) pastes were produced using a melt-quenched glass based on CaO–MgO–SiO2–Na2O–P2O5–CaF2 and two organic carriers, namely polyethylene glycol (PEG) and glycerol (Gly). The interactions between the organic carriers and the surface of the BG particles were assessed by spectroscopic methods (Fourier Transform Infrared, Raman, as well as 29Si and 13C solid-state NMR spectroscopy) in order to understand their effects on the viscoelastic properties of the biocomposites. While pure physical interactions were detected between PEG and the surface of the BG particles, chemical bonding was observed between glycerol and BG, enhancing the network cross-linking degree. Accordingly, the BG network of Gly-BG pastes was more condensed (higher fraction of Q [3] units detected by Raman spectroscopy) in comparison to that of PEG-BG and bare BG. Such chemical interactions between the organic carrier and BG were shown to negatively affect the viscoelastic behaviour of the resulting pastes. Thus, the PEG-based biocomposite exhibited improved flowability in comparison to its analogous Gly-BG biocomposite.

Item Type: Article
Erschienen: 2016
Creators: Gonzalo-Juan, I. and Tulyaganov, D. U. and Balan, C. and Linser, R. and Ferreira, J. M. F. and Riedel, R. and Ionescu, E.
Title: Tailoring the viscoelastic properties of injectable biocomposites: A spectroscopic assessment of the interactions between organic carriers and bioactive glass particles
Language: English
Abstract:

Injectable bioglass (BG) pastes were produced using a melt-quenched glass based on CaO–MgO–SiO2–Na2O–P2O5–CaF2 and two organic carriers, namely polyethylene glycol (PEG) and glycerol (Gly). The interactions between the organic carriers and the surface of the BG particles were assessed by spectroscopic methods (Fourier Transform Infrared, Raman, as well as 29Si and 13C solid-state NMR spectroscopy) in order to understand their effects on the viscoelastic properties of the biocomposites. While pure physical interactions were detected between PEG and the surface of the BG particles, chemical bonding was observed between glycerol and BG, enhancing the network cross-linking degree. Accordingly, the BG network of Gly-BG pastes was more condensed (higher fraction of Q [3] units detected by Raman spectroscopy) in comparison to that of PEG-BG and bare BG. Such chemical interactions between the organic carrier and BG were shown to negatively affect the viscoelastic behaviour of the resulting pastes. Thus, the PEG-based biocomposite exhibited improved flowability in comparison to its analogous Gly-BG biocomposite.

Journal or Publication Title: Materials & Design
Volume: 97
Publisher: Elsevier Science Publishing
Uncontrolled Keywords: Injectable biocomposites, Bioglass, PEG, Glycerol, Pastes
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Dispersive Solids
Date Deposited: 14 Jun 2017 09:11
Official URL: http://doi.org/10.1016/j.matdes.2016.02.085
Identification Number: doi:10.1016/j.matdes.2016.02.085
Funders: D. U. Tulyaganov acknowledges financial support from the German Academic Exchange Service (DAAD organization)., Corneliu Balan acknowledge the financial support from the Romanina grants: PN-II-ID-PCE-2012-4-0245 and PN-II-PT-PCCA-2011-3.1-0052., Rasmus Linser acknowledges the DFG for financial support in terms of Emmy-Noether funding., This work was supported by the European Regional Development Fund (FEDER) under the PT2020 Partnership Agreement through the COMPETE, by the Portuguese Government through the Portuguese Foundation for Science and Technology (FCT)., in the scope of the projects UID/CTM/50011/2013 (Aveiro Institute of Materials, CICECO,www.ciceco.ua.pt).
Export:
Suche nach Titel in: TUfind oder in Google

Optionen (nur für Redakteure)

View Item View Item