KFU. Card publication. Spectral and kinetic characteristics of precipitated and heat-treated hydroxyapatite and tricalcium phosphate doped with europium

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SPECTRAL AND KINETIC CHARACTERISTICS OF PRECIPITATED AND HEAT-TREATED HYDROXYAPATITE AND TRICALCIUM PHOSPHATE DOPED WITH EUROPIUM

Form of presentation

Articles in international journals and collections

Year of publication

2025

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Authors, employees of KFU

Gafurov Marat Revgerovich, author

Nizamutdinov Aleksey Sergeevich, author

Pudovkin Maksim Sergeevich, author

Semashko Vadim Vladimirovich, author

Sidorov Ilya Dmitrievich, author

Shosheva Ekaterina Ilinichna, author

Bibliographic description in the original language

Sidorov, I. D., Oleynikova, E. I., Pudovkin, M. S., Nizamutdinov, A. S., Semashko, V. V., Gafurov, M. R., ... & Komlev, V. S. (2024). Spectral and kinetic characteristics of precipitated and heat-treated hydroxyapatite and tricalcium phosphate doped with europium. Optical Materials, 116609.

Annotation

Synthetic calcium hydroxyapatite (HA) and tricalcium phosphate (TCP) doped with Eu3+, exhibiting photoluminescence in the spectral range between 550 and 750 nm, are promising optical markers in application of bioimaging due to their biocompatibility, adsorption capacity for proteins, and good stability during storage. Eu-doped HA and TCP precipitates were synthesized via wet precipitation technique and then heat-treated at 1300 ◦C. The precipitates and heat-treated powders were studied using X-ray diffraction (XRD), transmission electron microscopy (TEM), atomic emission spectrometry (AES), and luminescence spectroscopy. A comparative analysis of the luminescence spectra revealed the intensity increase as a result of heat-treatment for both Eu-doped HA and TCP under excitation at 266 and 394 nm. The characteristic emission for Eu3+ due to 5 Di→7 Fj transitions were detected. The changes in the intensity, shape and position of the spectral lines, depending on the phase composition, synthesis conditions and excitation conditions, were demonstrated. The measurement of photoluminescence quantum yield and assessment of kinetic characteristics showed the difference of Eu3+ luminescence in HA and TCP matrices due to the effect of the Eu3+ crystal field within the matrix. A linear temperature dependence of luminescence decay time was observed in wide temperature range, making the obtained materials highly promising for tem perature sensing applications.

Keywords

hydroxyapatite, tricalcium phosphate, Eu3+

The name of the journal

Optical Materials

URL

http://doi.org/10.1016/j.optmat.2024.116609

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=309278&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Gafurov Marat Revgerovich	ru_RU
dc.contributor.author	Nizamutdinov Aleksey Sergeevich	ru_RU
dc.contributor.author	Pudovkin Maksim Sergeevich	ru_RU
dc.contributor.author	Semashko Vadim Vladimirovich	ru_RU
dc.contributor.author	Sidorov Ilya Dmitrievich	ru_RU
dc.contributor.author	Shosheva Ekaterina Ilinichna	ru_RU
dc.date.accessioned	2025-01-01T00:00:00Z	ru_RU
dc.date.available	2025-01-01T00:00:00Z	ru_RU
dc.date.issued	2025	ru_RU
dc.identifier.citation	Sidorov, I. D., Oleynikova, E. I., Pudovkin, M. S., Nizamutdinov, A. S., Semashko, V. V., Gafurov, M. R., ... & Komlev, V. S. (2024). Spectral and kinetic characteristics of precipitated and heat-treated hydroxyapatite and tricalcium phosphate doped with europium. Optical Materials, 116609.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=309278&p_lang=2	ru_RU
dc.description.abstract	Optical Materials	ru_RU
dc.description.abstract	Synthetic calcium hydroxyapatite (HA) and tricalcium phosphate (TCP) doped with Eu3+, exhibiting photoluminescence in the spectral range between 550 and 750 nm, are promising optical markers in application of bioimaging due to their biocompatibility, adsorption capacity for proteins, and good stability during storage. Eu-doped HA and TCP precipitates were synthesized via wet precipitation technique and then heat-treated at 1300 ◦C. The precipitates and heat-treated powders were studied using X-ray diffraction (XRD), transmission electron microscopy (TEM), atomic emission spectrometry (AES), and luminescence spectroscopy. A comparative analysis of the luminescence spectra revealed the intensity increase as a result of heat-treatment for both Eu-doped HA and TCP under excitation at 266 and 394 nm. The characteristic emission for Eu3+ due to 5 Di→7 Fj transitions were detected. The changes in the intensity, shape and position of the spectral lines, depending on the phase composition, synthesis conditions and excitation conditions, were demonstrated. The measurement of photoluminescence quantum yield and assessment of kinetic characteristics showed the difference of Eu3+ luminescence in HA and TCP matrices due to the effect of the Eu3+ crystal field within the matrix. A linear temperature dependence of luminescence decay time was observed in wide temperature range, making the obtained materials highly promising for tem perature sensing applications.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	hydroxyapatite	ru_RU
dc.subject	tricalcium phosphate	ru_RU
dc.subject	Eu3+	ru_RU
dc.title	Spectral and kinetic characteristics of precipitated and heat-treated hydroxyapatite and tricalcium phosphate doped with europium	ru_RU
dc.type	Articles in international journals and collections	ru_RU