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Updated: Jan 25, 2026

Synthesis, Functionalization, and Characterization of Fusogenic Porous Silicon Nanoparticles for Oligonucleotide Delivery
Published on: April 16, 2019
Production and characterization of zirconia structures with a porous surface
Stephanie Roedel1, Joana Mesquita-Guimarães2, Júlio C M Souza3
1Ceramic and Composite Materials Research Group (CERMAT), Federal University of Santa Catarina, Campus Trindade, 88040-900 Florianópolis, SC, Brazil.
Abstract:
The aim of this study was to produce zirconia structures with a porous surface by the dip coating technique and assess the mechanical properties of the structures as well as the integrity of the porous layers. Surface porous layers with homogenous and graded porosity were produced over zirconia substrate discs using zirconia powders with different average sizes (d50 = 40 μm; d50 = 70 μm and d50 = 100 μm) and without pore forming fugitive phases. Specimens were inspected using Scanning Electron Microscopy. Bending strength of specimens was obtained from biaxial flexural tests (B3B). Porous layers were successfully produced on zirconia discs substrates and the bending strength of these specimens were ~35% lower than uncoated specimens. Delamination occurred especially in layers with higher thickness and made of bigger particles. Practical application examples were provided in this paper showing the versatility of these porous surfaces in the production of multifunctional surfaces for stronger interfaces.
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