scholarly journals Antibacterial surfaces based on functionally graded photocatalytic Fe3O4@TiO2 core–shell nanoparticle/epoxy composites

RSC Advances ◽  
2015 ◽  
Vol 5 (127) ◽  
pp. 105416-105421 ◽  
Author(s):  
Tommaso Nardi ◽  
Sami Rtimi ◽  
Cesar Pulgarin ◽  
Yves Leterrier
Keyword(s):  
Antibacterial Properties ◽  
Functionally Graded ◽  
Epoxy Composites ◽  
Core Shell ◽  
Concentration Profiles ◽  
Shell Nanoparticles ◽  
Core Shell Nanoparticles ◽  
Antibacterial Surfaces

Functionally graded epoxy composites with various concentration profiles of Fe3O4@TiO2 core–shell nanoparticles (NPs) were synthetized and characterized, with focus on their antibacterial properties.

Fabrication of silica/polyrhodanine core/shell nanoparticles and their antibacterial properties

2011 ◽  
Vol 21 (48) ◽  
pp. 19317 ◽  
Author(s):  
Jooyoung Song ◽  
Hee Song ◽  
Hyeyoung Kong ◽  
Jin-Yong Hong ◽  
Jyongsik Jang
Keyword(s):  
Antibacterial Properties ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Core Shell Nanoparticles

Bioinspired Functionally Graded Nanocomposites Synthesized Through Magnetophoretic Processes for Tailored Stress Reduction

2014 ◽  
Vol 1685 ◽  
Author(s):  
Tommaso Nardi ◽  
Yves Leterrier ◽  
Jan-Anders E. Månson
Keyword(s):  
Elastic Modulus ◽  
Stress Reduction ◽  
Functionally Graded ◽  
Core Shell ◽  
Unique Combination ◽  
Shell Nanoparticles ◽  
Uv Curable ◽  
Material Efficiency ◽  
Composition Gradients ◽  
Core Shell Nanoparticles

ABSTRACTThrough a unique combination of magnetophoretic and photopolymerization processes, approximately 150 μm thick functionally graded films based on a UV-curable matrix and containing Fe3O4@SiO2 core-shell nanoparticles are synthesized. Owing to their continuous composition gradients and to the considerable variations in elastic modulus (up to ≈70 %) when going from particle-depleted to particle-enriched regions, such materials are highly efficient in reducing the mechanical stress arising from thermal variations, therefore improving the material efficiency towards durability and delamination problems.

scholarly journals Antibacterial properties of synthesized Ag and Ag@SiO2 core–shell nanoparticles: a comparative study

2018 ◽  
Vol 96 (8) ◽  
pp. 955-960 ◽  
Author(s):  
Debashish Acharya ◽  
Bidhan Mohanta ◽  
Piyush Pandey ◽  
Farnaj Nasiri
Keyword(s):  
Silver Nanoparticles ◽  
Chemical Reduction ◽  
Porous Silica ◽  
Antibacterial Properties ◽  
Core Shell ◽  
Prolonged Release ◽  
Shell Nanoparticles ◽  
Visible Absorption ◽  
Morphological Studies ◽  
Core Shell Nanoparticles

Spherical bare silver nanoparticles (AgNPs) and silica-coated silver nanoparticles (Ag@SiO2) have been prepared using the one-step chemical reduction method. The optical, structural, and morphological studies were done by UV–visible absorption spectroscopy, X-ray diffraction (XRD), and transmission electron microscopy (TEM). The antibacterial effects of AgNP and Ag@SiO2 were further compared based on diameter of zone of inhibition and minimum inhibitory concentration (MIC) test against B. subtilis AST5–2, S. aureus ATCC 25923, S. marcescens AL2–16, and K. pneumoniae AWD5. Enhanced antibacterial activities were observed for Ag@SiO2 core–shell nanoparticles as compared to AgNPs against all tested bacteria. The results were attributed to the prolonged release of Ag (I) through porous silica shell that inhibits the growth of tested bacteria and also infers the possibility to be used in potential antibacterial applications.

Preparation and Electrocatalytic Performance of Thin-shell Ni/Pt Core-shell Nanoparticles

2012 ◽  
Vol 27 (1) ◽  
pp. 95-101
Author(s):  
Shi-Bin LIU ◽  
Chun-Ying YANG ◽  
Zhong-Lin ZHANG ◽  
Dong-Hong DUAN ◽  
Xiao-Gang HAO ◽  
...  
Keyword(s):  
Thin Shell ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Electrocatalytic Performance ◽  
Core Shell Nanoparticles
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