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CORNELIA GURAN ALEXANDRA PICA DENISA FICAI ANTON FICAI CEZAR COMANESCU 《Bulletin of Materials Science》2013,36(2):183-188
In this paper, we present inorganic–organic hybrid coatings with polymer matrix (water soluble) that contain silver nanoparticles (AgNPs). The structure and morphology of coating materials were determined by infrared spectroscopy (FT–IR) and scanning electron microscopy (SEM). Therefore, the antimicrobial activities and mechanisms of coatings for several pathogenic bacteria (Bacilius cereus and Staphylococcus aureus) were investigated. It was demonstrated that the obtained material with silver nanoparticles keep their antimicrobial effect even if they are subjected to several cycles of washing with water and detergent. 相似文献
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The effects of chirality and the intercalation of transitional metal atoms inside single walled BN nanotubes on structural, energetic and electronic properties have been considered in this paper. The thermodynamic stability of BN nanotubes can be improved by the intercalation of cobalt or nickel. BN nanotubes can behave like an ideal non-interacting hosts for these one-dimensional chains of metal atoms. Their electronic properties are insignificantly modified. 相似文献
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Bone tissue is a hierarchical material characterized at nanoscale by the mineralized collagen fibril, a recurring
structure mainly composed of apatite minerals, collagen and water. Bone nanostructure has a fundamental role in
determining the mechanical behavior of the tissue and its mass transport properties. Diffusion phenomenon allows to
maintain an adequate supply of metabolites in the mechanisms of bone remodeling, adaptation and repair. Several
analytical and computational models have been developed to analyze and predict bone tissue behavior. However, the
fine replication of the natural tissue still represents a challenge. Insights on the structural organization at nanoscale
and on the influence of apatite mineral crystals on the diffusion coefficient lead to outline the functional conditions
for the development of biomimetic strategies for bone tissue engineering. Thorough understanding of bone
nanostructure is essential to improve longevity of bioscaffolds and to decrease the risk of failure by controlling their
mechanical and biological performance. 相似文献
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