In this work, the multi-walled carbon nanotubes (MWCNTs) were purified with an acid treatment and subsequently dispersed using ultrasound a nonionic surfactant solution of ethoxylated lauric alcohol 7 moles ethylene oxide (E7E). Then, (CNTs) used as reinforcement phase (0.4 wt.% 0.8 wt.%) in Al- 10Mg alloy. The high-energy ball milling was employed for nanocomposites processing, resulting powde...

In recent years, the usage area of nano material reinforced composites has been increasing gradually. Accordingly, machining metal matrix and composite materials becomes important. this study, effect carbon nanotube (CNT) on CNT-reinforced ZA-27 (zinc-aluminum) was investigated. For purpose, 0.5%, 1.0%, 1.5%, 3.0% CNTreinforced based were produced by powder metallurgy method. Firstly, SEM image...

As a result of the growing potential industrial and medical applications of multi-walled carbon nanotubes (MWCNTs), people working in or residing near facilities that manufacture them may be exposed to airborne MWCNTs in the future. Because of concerns regarding their toxicity, quantitative data on the long-term clearance of pristine MWCNTs from the lungs are required. We administered pristine ...

BACKGROUND Increasing evidences indicate that exposure to multi-walled carbon nanotubes (MWCNTs) could induce adverse vascular effects, but the role of length of MWCNTs in determining the toxic effects is less studied. This study investigated the adverse effects of two well-characterized MWCNTs to human umbilical vein endothelial cells (HUVECs). METHODS The internalization and localization of...

PURPOSE The potential hazardous effects of multi-walled carbon nanotubes (MWCNTs) on cardiac electrophysiology are seldom evaluated. This study aimed to investigate the impacts of MWCNTs on the Kv4/Ito channel, action potential and heart rhythm and the underlying mechanisms. METHODS HEK293 cells were engineered to express Kv4.2 or Kv4.3 with or without KChIP2 expression. A series of approache...

Aluminium (Al) has low strength, limiting its applicability for certain technical applications seeking higher mechanical strength and deformation resistance. Integration of ternary hybrid reinforcement in Al offers a compelling opportunity to achieve synergistic combination multiple desirable properties opening new avenues advanced engineering beyond what can be achieved with mono or binary sys...

Multiwalled carbon nanotubes (MWCNTs) have the potential for widespread applications in engineering and materials science. However, because of their needle-like shape and high durability, concerns have been raised that MWCNTs may induce asbestos-like pathogenicity. Although recent studies have demonstrated that MWCNTs induce various types of reactivities, the physicochemical features of MWCNTs ...

Multiwalled carbon nanotubes (MWCNTs) have a great potential in wide applications but faces limitation in term of dispersion feasibility. The aggregation of MWCNTs floss has restricted its usage and thus, acid treatment is expected to promote the MWCNTs reaggregation. The functionalization process of MWCNTs involves oxidation reaction using mild aqueous acid mixture of HNO3 and H2SO4 (1:3 v/v),...

Atomic layer deposition (ALD) was employed to grow coaxial thin films of Al(2)O(3) and Al(2)O(3) /W bilayers on multi-walled carbon nanotubes (MWCNTs). Although the MWCNTs have an extremely high surface area, a rotary ALD reactor was successfully employed to perform ALD on gram quantities of MWCNTs. The uncoated and ALD-coated MWCNTs were characterized with transmission electron microscopy and ...

The present work reports on the gas transport behavior of mixed matrix membranes (MMM) which were prepared from multi-walled carbon nanotubes (MWCNTs) and dispersed within polymers of intrinsic microporosity (PIM-1) matrix. The MWCNTs were chemically functionalized with poly(ethylene glycol) (PEG) for a better dispersion in the polymer matrix. MMM-incorporating functionalized MWCNTs (f-MWCNTs) ...