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Effect of boron oxide addition on fibre drawing, mechanical properties and dissolution behaviour of phosphate-based glass fibres with fixed 40, 45 and 50 mol% P2O5.

Sharmin N, Parsons AJ, Rudd CD, Ahmed I - J Biomater Appl (2014)

Bottom Line: The mechanical properties of the fibres were found to significantly increase with increasing B2O3 content.Initial loss of mechanical properties due to annealing was found to be recovered with degradation.Both annealed and non-annealed fibres exhibited a peeling effect of the fibre's outer layer during degradation.

View Article: PubMed Central - PubMed

Affiliation: Division of Materials, Mechanics and Structures, University of Nottingham, Nottingham, UK.

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Scanning electron microscopy of days 1, 14 and 28 non-annealed degraded fibres of the composition P40B0 (A1–A28), P40B5 (B1–B28), P40B10 (C1–C28), P45B0 (D1–D28), P45B5 (E1–E28), P45B10 (F1–F28), P50B0 (G1–G28) and P50B5 (H1–H28). The fibres were degraded in PBS at 37℃ for up to 28 days.
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fig7-0885328214539824: Scanning electron microscopy of days 1, 14 and 28 non-annealed degraded fibres of the composition P40B0 (A1–A28), P40B5 (B1–B28), P40B10 (C1–C28), P45B0 (D1–D28), P45B5 (E1–E28), P45B10 (F1–F28), P50B0 (G1–G28) and P50B5 (H1–H28). The fibres were degraded in PBS at 37℃ for up to 28 days.

Mentions: Figure 7 represents the estimated dissolution rate of annealed and non-annealed degraded fibres after 28 days of dissolution in PBS at 37℃. The estimated dissolution rate of the annealed fibres was lower than the non-annealed fibres. After 28 days of degradation, the estimated dissolution rate of non-annealed P45B0, P45B5 and P45B10 fibres was 2.53 × 10−6, 1.97 × 10−6 and 1.47 × 10−6g cm−2 h−1, respectively. Whereas dissolution rate of 1.49 × 10−6, 1.25 × 10−6 and 8.59 × 10−7g cm−2 h−1 was observed for annealed P40B0, P45B5 and P45B10 fibres. However, for P50B0 and P50B5 fibres, the dissolution rate decreased from 8.28 × 10−6 to 2.96 × 10−6 g cm−2 h−1 and 4.50 × 10−6 to 1.35 × 10−6 g cm−2 h−1 with annealing, respectively.Figure 7.


Effect of boron oxide addition on fibre drawing, mechanical properties and dissolution behaviour of phosphate-based glass fibres with fixed 40, 45 and 50 mol% P2O5.

Sharmin N, Parsons AJ, Rudd CD, Ahmed I - J Biomater Appl (2014)

Scanning electron microscopy of days 1, 14 and 28 non-annealed degraded fibres of the composition P40B0 (A1–A28), P40B5 (B1–B28), P40B10 (C1–C28), P45B0 (D1–D28), P45B5 (E1–E28), P45B10 (F1–F28), P50B0 (G1–G28) and P50B5 (H1–H28). The fibres were degraded in PBS at 37℃ for up to 28 days.
© Copyright Policy - open-access
Related In: Results  -  Collection

License 1 - License 2 - License 3
Show All Figures
getmorefigures.php?uid=PMC4230965&req=5

fig7-0885328214539824: Scanning electron microscopy of days 1, 14 and 28 non-annealed degraded fibres of the composition P40B0 (A1–A28), P40B5 (B1–B28), P40B10 (C1–C28), P45B0 (D1–D28), P45B5 (E1–E28), P45B10 (F1–F28), P50B0 (G1–G28) and P50B5 (H1–H28). The fibres were degraded in PBS at 37℃ for up to 28 days.
Mentions: Figure 7 represents the estimated dissolution rate of annealed and non-annealed degraded fibres after 28 days of dissolution in PBS at 37℃. The estimated dissolution rate of the annealed fibres was lower than the non-annealed fibres. After 28 days of degradation, the estimated dissolution rate of non-annealed P45B0, P45B5 and P45B10 fibres was 2.53 × 10−6, 1.97 × 10−6 and 1.47 × 10−6g cm−2 h−1, respectively. Whereas dissolution rate of 1.49 × 10−6, 1.25 × 10−6 and 8.59 × 10−7g cm−2 h−1 was observed for annealed P40B0, P45B5 and P45B10 fibres. However, for P50B0 and P50B5 fibres, the dissolution rate decreased from 8.28 × 10−6 to 2.96 × 10−6 g cm−2 h−1 and 4.50 × 10−6 to 1.35 × 10−6 g cm−2 h−1 with annealing, respectively.Figure 7.

Bottom Line: The mechanical properties of the fibres were found to significantly increase with increasing B2O3 content.Initial loss of mechanical properties due to annealing was found to be recovered with degradation.Both annealed and non-annealed fibres exhibited a peeling effect of the fibre's outer layer during degradation.

View Article: PubMed Central - PubMed

Affiliation: Division of Materials, Mechanics and Structures, University of Nottingham, Nottingham, UK.

Show MeSH
Related in: MedlinePlus