Novel processing of bioglass ceramics from silicone resins containing micro- and nano-sized oxide particle fillers.
Highly porous scaffolds with composition similar to those of 45S5 and 58S bioglasses were successfully produced by an innovative processing method based on preceramic polymers containing micro- and nano-sized fillers. Silica from the decomposition of the silicone resins reacted with the oxides deriving from the fillers, yielding glass ceramic components after heating at 1000°C. Despite the limited mechanical strength, the obtained samples possessed suitable porous architecture and promising biocompatibility and bioactivity characteristics, as testified by preliminary in vitro tests.
Dipartimento di Ingegneria Industriale, University of Padova, Via Marzolo, 9, 35131, Padova, Italy.
L
L
Fiocco
E
E
Bernardo
P
P
Colombo
I
I
Cacciotti
A
A
Bianco
D
D
Bellucci
A
A
Sola
V
V
Cannillo
D001031:Apatites / Q000737:chemistry; D002516:Ceramics / Q000737:chemistry*; D003460:Crystallization; D005898:Glass / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D008422:Materials Testing / Q000379:methods*; D053758:Nanoparticles / Q000737:chemistry*; D010087:Oxides / Q000737:chemistry*; D010316:Particle Size; D016062:Porosity; D012117:Resins, Synthetic / Q000737:chemistry*; D012828:Silicones / Q000737:chemistry*; D013059:Spectrum Analysis, Raman; D014961:X-Ray Diffraction
D001031:Apatites; C022107:Bioglass; D010087:Oxides; D012117:Resins, Synthetic; D012828:Silicones; C425330:bioactive glass 45S5; C448994:bioactive glass 58S; C023506:Glass ceramics
bioactivity; bioglasses; glass-ceramics; polymer-derived ceramics; porous scaffolds