ISSN 0862-5468 (Print), ISSN 1804-5847 (online) 

Ceramics-Silikáty 68, (3) 353 - 359 (2024)

Alshemary Ammar Z. 1,2,3,4,5, Naser Ali Abra 6, Haidary S. M. 7, Cardakli Ismail Seckin 8
1 Nanomaterials Research Center, School of Natural Science, Wenzhou-Kean University, 88 Daxue Road, Ouhai, Wenzhou 325060, Zhejiang Province, China
2 Wenzhou Municipal Key Lab for Applied Biomedical and Biopharmaceutical Informatics, Ouhai, Wenzhou 325060, Zhejiang Province, China
3 Zhejiang Bioinformatics International Science and Technology Cooperation Center, Ouhai, Wenzhou 325060, Zhejiang Province, China
4 Dorothy and George Hennings College of Science, Mathematics and Technology, Kean University, 1000 Morris Ave, Union, NJ 07083, USA
5 Biomedical Engineering Department, College of Engineering and Technologies, Al-Mustaqbal University, 51001, Babylon, Iraq
6 Ministry of Education-General Directorate of Misan Education, Misan 62001, Iraq
7 Department of Food Technology, College of Agricultural Engineering Sciences, Salahaddin University, Erbil, Iraq
8 Department of Metallurgical and Materials Engineering, Atatürk University, Erzurum, 25240, Turkey

Keywords: Bioactive glass, Potassium-enriched, Structural characterisation, Thermal properties

This study uses the sol-gel method to explore the structural and thermal properties of synthesised potassium-doped 45S5 bioactive glass (BG) nanoparticles. The X-ray diffraction (XRD) revealed the crystalline phase of Na₂Ca₄ (PO4) ₂SiO₄ and a shift in diffraction peaks due to the potassium integration, suggesting enhanced crystallinity. Field Emission Scanning Electron Microscopy (FESEM) showed a change in particle morphology with the potassium addition, indicating modified nucleation and growth processes. The thermogravimetric analysis (TGA) demonstrated improved thermal stability in the potassium-doped samples, with reduced weight loss across all temperature ranges. The nitrogen adsorption-desorption isotherm analysis revealed an increase in the surface area from 11.54 m²/g in the BG to 11.77 m²/g in the potassium-doped BG and a decrease in the pore volume and average pore size, indicating a significant structural change. These results highlight the potential of potassium-doped BG in biomedical applications, offering enhanced bioactivity and thermal stability.

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doi: 10.13168/cs.2024.0034
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