AI Article Synopsis
- CaTiO is identified as a potential scaffold material for bone implantation, with improved pseudo-piezoelectric properties when doped with magnesium and iron.
- The study employed sol-gel synthesis and spark plasma sintering to create both pure and doped CaTiO, revealing that doping enhances structural strain and defects, leading to a stronger pseudo-piezoelectric effect.
- Magnesium doped CaTiO produced a charge of (2.9 ± 0.1) pC, while iron doping resulted in the highest charge of (3.6 ± 0.2) pC, indicating that doping can be used to optimize piezoelectric responses for better bone tissue engineering applications.
Article Abstract
CaTiO is a promising candidate as a pseudo-piezoelectric scaffold material for bone implantation. In this study, pure and magnesium/iron doped CaTiO are synthesized by sol-gel method and spark plasma sintering. Energy dispersive X-ray mapping confirm the homogenous distribution of doping elements in sintered samples. High-energy X-ray diffraction investigations reveal that doping of nanostructured CaTiO increased the strain and defects in the structure of CaTiO compared to the pure one. This led to a stronger pseudo-piezoelectric effect in the doped samples. The charge produced in magnesium doped CaTiO due to the direct piezoelectric effect is (2.9 ± 0.1) pC which was larger than the one produced in pure CaTiO (2.1 ± 0.3) pC, whereas the maximum charge was generated by iron doped CaTiO with (3.6 ± 0.2) pC. Therefore, the pseudo-piezoelectric behavior can be tuned by doping. This tuning of pseudo-piezoelectric response provides the possibility to systematically study the bone response using different piezoelectric strengths and possibly adjust for bone tissue engineering.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8003264 | PMC |
| http://dx.doi.org/10.3390/ma14061495 | DOI Listing |
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