Effect of CeO2 doping on thermal, optical, structural and in vitro properties of a phosphate based bioactive glass

In‐vitro dissolution characteristics and human adipose stem cell response to novel borophosphate glasses

“…The decrease in the 1,260 cm −1 band intensity and the shift to lower wavenumber, in the case of the Ce‐2 samples, is attributable to a decrease in the network connectivity, weakening of the Q 2 units and an increase in the amount of Q 1 units. This is in agreement with structural changes reported on PGs by Massera, Vassallo‐Breillot, et al (). In contrast, the intensity of this band increased in the case of Ag‐1 and Cu‐2, indicating a decrease in the amount of Q 1 units, is in agreement with structural changes reported on Ag and Cu doped PGs (Mishra et al, , ).…”

“…The UV‐Vis spectra of the Cu doped glass revealed the presence of a broad absorption band at 850 nm correlated to Cu 2+ ions as discussed in (Bae & Weinberg, ; Mishra et al, ). While the UV‐Vis spectra of the Ce doped glass does not exhibit any absorption band, a strong shift of the absorption band gap, to higher wavelength was noticed, pertaining to the presence of Ce 4+ ions leading to the yellow coloration as discussed in Blinkova, Vakhidov, Islamov, Nuritdinov, and Khaidarova (); Massera, Vassallo‐Breillot, et al ().…”

“…The glass doped with Cu appeared to have the wider hot forming domain of all processed glasses. Also, these glasses had a higher thermal processing window than those investigated earlier (Massera, Vassallo‐Breillot, et al, ; Mishra et al, , ), which may be attributed to partial substitution of P 2 O 5 with B 2 O 3 . The improvement in the thermal processing window of PGs as a result of boron addition has been reported in the past (Bingham et al, ; Harada et al, ; Karabulut et al, ; Koudelka & Mošner, ; Massera et al, ).…”

“…However, the dissolution rate was further increased by the presence of these metallic ions. When doped with Ce, the glasses were found to have a wider thermal processing window, a steady ion release, albeit a slower degradation rate than Sr50 (Massera, Vassallo‐Breillot, Törngren, Glorieux, & Hupa, ). The fast degradation of the metal‐doped PGs led to human adipose stem cell death in a preliminary cell culture experiment.…”

Superior biofunctionality of dental implant fixtures uniformly coated with durable bioglass films by magnetron sputtering

“…The high Na 2 O content and the related fast degradation rate of 45S5 Bioglass® and S53P4 BonAlive® might be inappropriate for durable implant coatings. However, in some cases remnants of S53P4 were still observed after several year post-implantation [33,34].…”