Highly porous polymer-derived bioceramics based on a complex hardystonite solid solution

Elsayed H, Secco M, Zorzi F, Schuhladen K, Detsch R, Boccaccini AR, Bernardo E (2019)

Publication Type: Journal article

Publication year: 2019

Journal

Materials MDPI

Book Volume: 12

Article Number: 3970

Journal Issue: 23

DOI: 10.3390/ma122333970

Abstract

Highly porous bioceramics, based on a complex hardystonite solid solution, were developed fromsilicone resins and micro-sized oxide fillers fired in air at 950 °C. Besides CaO, SrO, MgO, and ZnO precursors, and the commercial embedded silicone resins, calcium borate was essential in providing the liquid phase upon firing and favouring the formation of an unprecedented hardystonite solid solution, corresponding to the formula (Ca0.70Sr0.30)2(Zn0.72Mg0.15Si0.13) (Si0.85B0.15)2O7. Silicone-filler mixtures could be used in the form of thick pastes for direct ink writing of reticulated scaffolds or for direct foaming. The latter shaping option benefited from the use of hydrated calcium borate, which underwent dehydration, with water vapour release, at a low temperature (420 °C). Both scaffolds and foams confirmed the already-obtained phase assemblage, after firing, and exhibited remarkable strength-to-density ratios. Finally, preliminary cell tests excluded any cytotoxicity that could be derived from the formation of a boro-silicate glassy phase.

Authors with CRIS profile

Katharina Schuhladen Lehrstuhl für Werkstoffwissenschaften (Biomaterialien) Rainer Detsch Lehrstuhl für Werkstoffwissenschaften (Biomaterialien) Aldo Boccaccini Lehrstuhl für Werkstoffwissenschaften (Biomaterialien)

Involved external institutions

University of Padua / Universita degli Studi di Padova IT Italy (IT)

How to cite

APA:

Elsayed, H., Secco, M., Zorzi, F., Schuhladen, K., Detsch, R., Boccaccini, A.R., & Bernardo, E. (2019). Highly porous polymer-derived bioceramics based on a complex hardystonite solid solution. Materials, 12(23). https://dx.doi.org/10.3390/ma122333970

MLA:

Elsayed, Hamada, et al. "Highly porous polymer-derived bioceramics based on a complex hardystonite solid solution." Materials 12.23 (2019).

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