Physical Characterization of Bismuth Oxide Nanoparticle Based Ceramic Composite for Future Biomedical Application

Materials

Pravin Jagdale¹  Alberto Tagliaferro²  AlbertoLuigi Audenino³  Cristina Bignardi³  Gianpaolo Serino³  Carlos Alvarez-Gayosso⁴  Goldie Oza⁵ 

[1] Center for Sustainable Future Technologies—IIT@PoliTO Istituto Italiano di Tecnologia (IIT), Via Livorno 60, 10144 Turin, Italy;Department of Applied Science and Technology (DISAT), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy;Department of Mechanical and Aerospace Engineering (DIMEAS), Politecnico di Torino, 10129 Turin, Italy;Laboratorio de Investigacion de Materiles Dentales, Division de Estudios de Posgrado e Investigacion, Facultad de Odontologia, UNAM, Circuito de la Investigacion Cientifica, Alcaldia de Coyoacan, Ciudad Universitaria, 04510 Mexico, Mexico;National Laboratory for Microfluidics and Nanofluidics (LABMyN), Centro de Investigación y Desarrollo Tecnológico en Electroquímica (CIDETEQ), 76703 Queretaro, Mexico;

关键词: epoxy;    bismuth oxide;    nanoparticles;    composite;    biocompatible;    mechanical properties;   

DOI  :  10.3390/ma14071626

来源: DOAJ

【 摘 要 】

Employment and the effect of eco-friendly bismuth oxide nanoparticles (BiONPs) in bio-cement were studied. The standard method was adopted to prepare BiONPs-composite. Water was adopted for dispersing BiONPs in the composite. A representative batch (2 wt. % of BiONPs) was prepared without water to study the impact of water on composite properties. For each batch, 10 samples were prepared and tested. TGA (thermogravimetric analysis) performed on composite showed 0.8 wt. % losses in samples prepared without water whereas, maximum 2 wt. % weight losses observed in the water-based composite. Presence of BiONPs resulted in a decrease in depth of curing. Three-point bending flexural strength decreased for increasing BiONPs content. Comparative study between 2 wt. % samples with and without water showed 10.40 (±0.91) MPa and 28.45 (±2.50) MPa flexural strength values, respectively, indicating a significant (p < 0.05) increase of the mechanical properties at the macroscale. Nanoindentation revealed that 2 wt. % without water composites showed significant (p < 0.05) highest nanoindentation modulus 26.4 (±1.28) GPa and hardness 0.46 (±0.013) GPa. Usage of water as dispersion media was found to be deleterious for the overall characteristics of the composite but, at the same time, the BiONPs acted as a very promising filler that can be used in this class of composites.

【 授权许可】

Unknown