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Manuel Almeida Valente on Muck Rack

Manuel Almeida Valente

As seen in: Nature, MDPI
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Articles

Al–Ca co-doped ZnO nanostructures for enhanced electrical and dielectric properties

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By Imen Hammami, Sonia Esther Soltani Verified, R. A. El-Kasaby, Mokhtar Hjiri, Majdi Benamara, S. Soreto Teixeira, M. Graça, Manuel Almeida Valente, Nouf Ahmed Althumairi, H. Marzougui
| Nature Verified
Abstract In this work, Al (1%) and Ca (5%) co-doped ZnO (ACZO) nanopowders were successfully synthesized using a modified sol–gel method combined with supercritical ethanol drying followed by thermal annealing. X-ray diffraction confirmed that all samples crystallize in the hexagonal wurtzite structure, with a reduction of the crystallite size from 52 nm for pure ZnO to 29 nm for ACZO due to lattice distortion induced by co-doping.
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Antibacterial Biomaterial Based on Bioglass Modified with Copper for Implants Coating

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By Imen Hammami, Sílvia Rodrigues Gavinho, Suresh Kumar Jakka, Manuel Almeida Valente
| MDPI
This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
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