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19 March 2024 Effect of high-energy radiation on the electrical and optical characteristics of bioactive glasses
Aria Tauraso, Krishna S. Machuga, Joel McAdams, Ching Hua Su, Brian Cullum, Tagide deCarvalho, Narasimha S. Prasad, Bradley Arnold, Fow-Sen Choa, Kamdeo D. Mandal, Narsingh Bahadur Singh
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Optical Engineering, Vol. 63, Issue 3, 037105 (March 2024). https://doi.org/10.1117/1.OE.63.3.037105
Abstract

Significance

The glassy and crystalline hydroxyapatites that affect the metabolic processes such as tissue growth and healing are affected by the electrical, electrochemical, and optical properties investigated in this study.

Aim

The aim of the present study is to determine effects of high-energy radiation and impurities on the electrical and optical properties of hydroxyapatites responsible for tissue growth and tendency of glass forming ability.

Approach

The approach of the study involves synthesis using carbonates, oxides, silicates, phosphates, and borates of parent materials using elevated temperature and low-temperature flux process. High-energy radiation effects were studied by exposing hydroxyapatites with 5 μCi Cs137 γ- ray source. Morphology was studied to determine dissolution and glass formation of additives such as titanium, gallium, and selenium.

Results

Irradiation of silicate bio glasses showed huge effects on the electrical characteristics, such as dielectric constant (hence polarity) and resistivity of the materials while optical properties showed insignificant changes. Morphological studies showed transition of faceted to nonfaceted structure.

Conclusion

Exposure for the bias voltage of 50 to 1000 mV in the range of 100 to 100000 Hz frequency range showed a large decrease in the dielectric constant and increase in resistivity. The IR and Raman spectra for irradiated glasses exposed for 24 h showed a small change. Morphological results showed that substitution of gallium, magnesium, and /or titanium affects the transition to the glass formation. The addition of selenium showed enormous potential to improve the mixing and glass formation without titanium and gallium precipitates in the matrix.
© 2024 Society of Photo-Optical Instrumentation Engineers (SPIE)
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Aria Tauraso, Krishna S. Machuga, Joel McAdams, Ching Hua Su, Brian Cullum, Tagide deCarvalho, Narasimha S. Prasad, Bradley Arnold, Fow-Sen Choa, Kamdeo D. Mandal, and Narsingh Bahadur Singh "Effect of high-energy radiation on the electrical and optical characteristics of bioactive glasses," Optical Engineering 63(3), 037105 (19 March 2024). https://doi.org/10.1117/1.OE.63.3.037105
Received: 23 September 2023; Accepted: 19 February 2024; Published: 19 March 2024
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KEYWORDS
Glasses
Radiation effects
Dielectrics
Titanium
Mixtures
Selenium
Crystals
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