Abstract
The use of calcium phosphate-based (CaP-based) materials has increased significantly over the past 20 years in a wide range of applications. Their
orthophosphate forms such as hydroxyapatite are mostly used in biomedical applications as they constitute the inorganic phase of human hard tissues. However, they do not have shown good enough mechanical properties as well as bioresorbability. Recently pyrophosphate forms of CaP-based materials (calcium pyrophosphate (Ca2P2O7) – CPP) attract attention owing to their excellent thermal and chemical stability, bioresorbability, and bioactivity. Among the polymorphs of CPP, β phase (β-CPP) is the most stable phase and has shown excellent bioproperties
such as biocompatibility. Therefore, developing simple, cheap, up-scalable, reproducible, and high-speed synthesis methods for β-CPP with high purity offers an
interesting research area. In this study, single-phase nanocrystalline β-CPP powder has been successfully synthesized with high purity by liquid flame spray (LFS) for the first time. LFS is an ultra-short synthesis time aerosol method and meets the above-mentioned criteria. Briefly, Ca(NO3)2⋅4H2O and (NH4)2HPO4 have been used as the sources of Ca and P, respectively. They have been dissolved in an ethanol and deionized water solution. Thereafter, the liquid precursor solution was fed into a turbulent H2/O2 flame with a feeding rate of 2.01 ml/min. The synthesized powder was collected from the flame with an electrostatic precipitator (ESP). The synthesized powder was characterized by X-ray fluorescence spectrometer (XRF), X-ray diffraction
analysis (XRD), Brunauer–Emmett–Teller (BET) method, and scanning electron microscopy (SEM).
orthophosphate forms such as hydroxyapatite are mostly used in biomedical applications as they constitute the inorganic phase of human hard tissues. However, they do not have shown good enough mechanical properties as well as bioresorbability. Recently pyrophosphate forms of CaP-based materials (calcium pyrophosphate (Ca2P2O7) – CPP) attract attention owing to their excellent thermal and chemical stability, bioresorbability, and bioactivity. Among the polymorphs of CPP, β phase (β-CPP) is the most stable phase and has shown excellent bioproperties
such as biocompatibility. Therefore, developing simple, cheap, up-scalable, reproducible, and high-speed synthesis methods for β-CPP with high purity offers an
interesting research area. In this study, single-phase nanocrystalline β-CPP powder has been successfully synthesized with high purity by liquid flame spray (LFS) for the first time. LFS is an ultra-short synthesis time aerosol method and meets the above-mentioned criteria. Briefly, Ca(NO3)2⋅4H2O and (NH4)2HPO4 have been used as the sources of Ca and P, respectively. They have been dissolved in an ethanol and deionized water solution. Thereafter, the liquid precursor solution was fed into a turbulent H2/O2 flame with a feeding rate of 2.01 ml/min. The synthesized powder was collected from the flame with an electrostatic precipitator (ESP). The synthesized powder was characterized by X-ray fluorescence spectrometer (XRF), X-ray diffraction
analysis (XRD), Brunauer–Emmett–Teller (BET) method, and scanning electron microscopy (SEM).
Original language | English |
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Publication status | Published - 3 Sept 2023 |
Publication type | Not Eligible |
Event | European Aerosol Conference - Spain, Malaga Duration: 3 Sept 2023 → 8 Sept 2023 https://www.dfmf.uned.es/EAC2023/ |
Conference
Conference | European Aerosol Conference |
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Abbreviated title | EAC |
City | Malaga |
Period | 3/09/23 → 8/09/23 |
Internet address |