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The Effect of Thermal Oxidation on the Photothermal Conversion Property of Tantalum Coatings

In this study, tantalum coatings are deposited by a plasma spraying method aiming at enhancing the biocompatibility of the titanium implant. Tantalum oxide coatings are gained through the thermal oxidation of tantalum coatings at different temperatures for photothermal therapy. The effect of thermal...

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Detalles Bibliográficos
Autores principales: Ding, Ding, Zeng, Qingping, He, Feng, Chen, Zhuojun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8303513/
https://www.ncbi.nlm.nih.gov/pubmed/34300950
http://dx.doi.org/10.3390/ma14144031
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author Ding, Ding
Zeng, Qingping
He, Feng
Chen, Zhuojun
author_facet Ding, Ding
Zeng, Qingping
He, Feng
Chen, Zhuojun
author_sort Ding, Ding
collection PubMed
description In this study, tantalum coatings are deposited by a plasma spraying method aiming at enhancing the biocompatibility of the titanium implant. Tantalum oxide coatings are gained through the thermal oxidation of tantalum coatings at different temperatures for photothermal therapy. The effect of thermal oxidation on the morphology, composition, and structure of tantalum coatings has been studied. The UV–VIS–NIR spectra results, cancer therapy effect in vitro, and photothermal conversion properties among the tantalum oxide coatings under varied thermal treatment conditions are compared comprehensively. It has been proven that the tantalum coating treated at 200 °C exhibits the most intense NIR adsorption, the highest photothermal conversion effect, and the most excellent photothermal ablation effect in vitro. The results reveal that incomplete oxidation at a low temperature leads to the formation of oxygen vacancies, which narrow the band gap; this promotes its photothermal conversion ability.
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spelling pubmed-83035132021-07-25 The Effect of Thermal Oxidation on the Photothermal Conversion Property of Tantalum Coatings Ding, Ding Zeng, Qingping He, Feng Chen, Zhuojun Materials (Basel) Article In this study, tantalum coatings are deposited by a plasma spraying method aiming at enhancing the biocompatibility of the titanium implant. Tantalum oxide coatings are gained through the thermal oxidation of tantalum coatings at different temperatures for photothermal therapy. The effect of thermal oxidation on the morphology, composition, and structure of tantalum coatings has been studied. The UV–VIS–NIR spectra results, cancer therapy effect in vitro, and photothermal conversion properties among the tantalum oxide coatings under varied thermal treatment conditions are compared comprehensively. It has been proven that the tantalum coating treated at 200 °C exhibits the most intense NIR adsorption, the highest photothermal conversion effect, and the most excellent photothermal ablation effect in vitro. The results reveal that incomplete oxidation at a low temperature leads to the formation of oxygen vacancies, which narrow the band gap; this promotes its photothermal conversion ability. MDPI 2021-07-19 /pmc/articles/PMC8303513/ /pubmed/34300950 http://dx.doi.org/10.3390/ma14144031 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ding, Ding
Zeng, Qingping
He, Feng
Chen, Zhuojun
The Effect of Thermal Oxidation on the Photothermal Conversion Property of Tantalum Coatings
title The Effect of Thermal Oxidation on the Photothermal Conversion Property of Tantalum Coatings
title_full The Effect of Thermal Oxidation on the Photothermal Conversion Property of Tantalum Coatings
title_fullStr The Effect of Thermal Oxidation on the Photothermal Conversion Property of Tantalum Coatings
title_full_unstemmed The Effect of Thermal Oxidation on the Photothermal Conversion Property of Tantalum Coatings
title_short The Effect of Thermal Oxidation on the Photothermal Conversion Property of Tantalum Coatings
title_sort effect of thermal oxidation on the photothermal conversion property of tantalum coatings
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8303513/
https://www.ncbi.nlm.nih.gov/pubmed/34300950
http://dx.doi.org/10.3390/ma14144031
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