journal article·2024-06Open access

Controlled release of cobalt ions from polyphosphate glasses

Wolfram Hartramph, Kristin Griebenow, Yuki Oi, Thilo Grammes, Nuttawan Sawangboon, Efstratios I. Kamitsos, Toshihiro Kasuga, Delia S. Brauer

Materials Letters· Volume 365

Abstract

Owing to their tuneable solubility, phosphate glasses are of interest for the controlled release of therapeutic ions. Here, we investigate the release of cobalt ions, which may stimulate blood vessel formation. Substituting cobalt for calcium in soda lime polyphosphate glasses resulted in minor structural changes as shown by IR spectroscopy and molar volume calculation. Cobalt release during immersion increased linearly with substitution, confirming that released amounts can be tuned easily via glass composition.
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Research context

OpenAlex topics: Glass properties and applications · Luminescence Properties of Advanced Materials · Building materials and conservation

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