Dataset Information

Electrochemical Synthesis of Nb-Doped BaTiO₃ Nanoparticles with Titanium-Niobium Alloy as Electrode.

ABSTRACT: In this paper, Nb-doped BaTiO₃ nanoparticles (BaNb_0.47Ti_0.53O₃) were prepared using an electrochemical method in an alkaline solution, with titanium-niobium alloy as the electrode. The results indicated that under relatively mild conditions (normal temperature and pressure, V < 60 V, I < 5 A), cubic perovskite phase Nb-doped BaTiO₃ nanoparticles with high crystallinity and uniform distribution can be synthesized. With this increase in alkalinity, the crystallinity of the sample increases, the crystal grain size decreases, and the particles become more equally dispersed. Furthermore, in our study, the average grain size of the nanoparticles was 5-20 nm, and the particles with good crystallinity were obtained at a concentration of 3 mol/L of NaOH. This provides a new idea and method for introducing foreign ions under high alkalinity conditions.

SUBMITTER: Yuan Q

PROVIDER: S-EPMC9862403 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature

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Electrochemical Synthesis of Nb-Doped BaTiO<sub>3</sub> Nanoparticles with Titanium-Niobium Alloy as Electrode.

Yuan Qi Q Hu Wencai W Wang Tao T Wang Sen S Liu Gaobin G Han Xueyan X Guo Feixiang F Fan Yongheng Y

Nanomaterials (Basel, Switzerland) 20230106 2

In this paper, Nb-doped BaTiO3 nanoparticles (BaNb0.47Ti0.53O3) were prepared using an electrochemical method in an alkaline solution, with titanium-niobium alloy as the electrode. The results indicated that under relatively mild conditions (normal temperature and pressure, V < 60 V, I < 5 A), cubic perovskite phase Nb-doped BaTiO3 nanoparticles with high crystallinity and uniform distribution can be synthesized. With this increase in alkalinity, the crystallinity of the sample increases, the cr ...[more]

PMID: 36678004

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Project description:Titanium dental implants have common clinical applications due to their biocompatibility, biophysical and biochemical characteristics. Although current titanium is thought to be safe and beneficial for patients, there are several indications that it may release toxic metal ions or metal nanoparticles from its alloys into the surrounding environment, which could lead to clinically relevant complications including toxic reactions as well as immune dysfunctions. Hence, an adequate selection and testing of medical biomaterial with outstanding properties are warranted. This study was designed to explore the biocompatibility of smooth titanium-niobium alloy (S_TiNb) versus smooth titanium commercially pure (S_TiCp)-a reference in implantology. All experiments were performed in vitro using human osteoblast-like SaOs-2 and monocyte THP-1 cell lines as models. Cell adhesion and growth morphology were determined by scanning electron microscopy, while cell viability was evaluated using WST-1 assay. Because niobate anions or niobium nanoparticles can be released from implants during biomaterial-cell interaction, potential immunotoxicity of potassium niobate (KNbO3) salt was evaluated by examining both metabolic activity and transcriptomic profiling of treated THP-1 monocytes. The main findings of this study are that S_TiCp and S_TiNb discs do not show an impact on the proliferation and viability of SaOs-2 cells compared to polystyrene surfaces, whereas a significant decrease in THP-1 cells' viability and metabolic activity was observed in the presence of S_TiNb discs compared to the control group. However, no significant changes were found neither at the metabolic activity nor at the transcriptomic level of THP-1 monocytes exposed to KNbO3 salt, suggesting that niobium has no effect on the immune system. Overall, these data imply a possible toxicity of S_TiNb discs toward THP-1 cells, which may not be directly related to niobium but perhaps to the manufacturing process of titanium-niobium alloy. Thus, this limitation must be overcome to make titanium alloy an excellent material for medical applications.

Dataset Information

Electrochemical Synthesis of Nb-Doped BaTiO₃ Nanoparticles with Titanium-Niobium Alloy as Electrode.

Publications

Electrochemical Synthesis of Nb-Doped BaTiO<sub>3</sub> Nanoparticles with Titanium-Niobium Alloy as Electrode.

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Dataset Information

Electrochemical Synthesis of Nb-Doped BaTiO3 Nanoparticles with Titanium-Niobium Alloy as Electrode.

Publications

Electrochemical Synthesis of Nb-Doped BaTiO<sub>3</sub> Nanoparticles with Titanium-Niobium Alloy as Electrode.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

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Electrochemical Synthesis of Nb-Doped BaTiO₃ Nanoparticles with Titanium-Niobium Alloy as Electrode.