Characterization of 20Na₂O·30((1−x)CaO·xSrO)·50P₂O₅ Glasses for a Resorbable Optical Fiber Application
Resorbable glasses with nominal molar compositions of 20Na2O·30[(1−x)CaO·xSrO]·50P2O5, where x = 0, 0.25, 0.50, 0.75, and 1, were prepared and characterized. With the replacement of CaO by SrO, the molar volume, refractive index, and coefficient of thermal expansion increased, and the glass transition temperature, crystallization temperature, and viscosity decreased. The replacement of CaO by SrO decreased the dissolution rate in 37°C water by nearly an order of magnitude. Resorbable glass fibers drawn from melts of the 20Na2O·30CaO·50P2O5 glass exhibited decreasing transmission of laser light (632 nm) in a predictable way as the fiber dissolved in a phosphate buffer solution. This demonstrated that these glasses could be used to produce resorbable fibers for temporary biosensing or therapeutic applications.
P. T. Freudenberger et al., "Characterization of 20Na₂O·30((1−x)CaO·xSrO)·50P₂O₅ Glasses for a Resorbable Optical Fiber Application," International Journal of Applied Glass Science, vol. 10, no. 3, pp. 378 - 390, Blackwell Publishing Inc., Jul 2019.
The definitive version is available at https://doi.org/10.1111/ijag.13106
Electrical and Computer Engineering
Materials Science and Engineering
Keywords and Phrases
Biocompatibility; optical < Properties; optical fibers < Glass Products; phosphate < Glass Forming Systems; Raman spectroscopy < Characterization; thermal < Properties
International Standard Serial Number (ISSN)
Article - Journal
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01 Jul 2019