نتایج جستجو برای: modified multiwalled carbon nanotubes

تعداد نتایج: 527631  

Habib Ramezan Nejad Reza Ansari,

In this article, based on the Euler-Bernoulli beam theory, the large-amplitude vibration of multiwalled carbon nanotubes embedded in an elastic medium is investigated. The method of incremental harmonic balance is implemented to solve the set of governing nonlinear equations coupled via the van der Waals (vdW) interlayer force. The influences of number of tube walls, the elastic medium, nanotub...

Journal: :Chemical communications 2012
Giovanni Grassi Angela Scala Anna Piperno Daniela Iannazzo Maurizio Lanza Candida Milone Alessandro Pistone Signorino Galvagno

This work reports for the first time a straightforward solvent-free chemical procedure to gain access to Δ-1-pyrroline grafted onto multiwalled carbon nanotubes by the 1,3-dipolar cycloaddition of the mesoionic 4-methyl-2-phenyloxazol-5(4H)-one.

Journal: :Chemical communications 2005
M Dehonor K Masenelli-Varlot A González-Montiel C Gauthier J Y Cavaillé H Terrones M Terrones

Polymer brushes consisting of polystyrene (PS) chains bonded covalently to N-doped multiwalled carbon nanotubes (CNx) were synthesized by a "grafting from" route using nitroxide mediated radical polymerization (NMRP).

Journal: :Nanoscale 2015
F M P Tonelli S M S N Lacerda N C O Paiva F G Pacheco S R A Scalzo Junior F H P de Macedo J S Cruz M C X Pinto J D Corrêa Junior L O Ladeira L R França S Guatimosim R R Resende

Nanodiamonds (NDs), multiwalled carbon nanotubes (MWCNTs) and gold nanorods (NRs) can be functionalized to promote gene delivery to hard-to-transfect cells with higher transfection efficiency than cationic lipids, and inducing less cell death.

Journal: :ACS nano 2010
Candace K Chan Reken N Patel Michael J O'Connell Brian A Korgel Yi Cui

Composite electrodes composed of silicon nanowires synthesized using the supercritical fluid-liquid-solid (SFLS) method mixed with amorphous carbon or carbon nanotubes were evaluated as Li-ion battery anodes. Carbon coating of the silicon nanowires using the pyrolysis of sugar was found to be crucial for making good electronic contact to the material. Using multiwalled carbon nanotubes as the c...

Journal: :International Journal of Materials Science and Applications 2019

2009
Jessica P. Ryman-Rasmussen Mark F. Cesta Arnold R. Brody Jeanette K. Shipley-Phillips Jeffrey Everitt Earl W. Tewksbury Owen R. Moss Brian A. Wong Darol E. Dodd Melvin E. Andersen James C. Bonner

Carbon nanotubes are shaped like fibres and can stimulate inflammation at the surface of the peritoneum when injected into the abdominal cavity of mice, raising concerns that inhaled nanotubes may cause pleural fibrosis and/or mesothelioma. Here, we show that multiwalled carbon nanotubes reach the subpleura in mice after a single inhalation exposure of 30 mg m(-3) for 6 h. Nanotubes were embedd...

2007
Lixin Dong Arunkumar Subramanian Bradley J. Nelson

The well-defined geometry, exceptional mechanical properties, and extraordinary electrical characteristics of carbon nanotubes qualify them for structuring nanoelectronic circuits, nanoelectromechanical systems, and nanorobotic systems. Relative displacements between the atomically smooth, nested shells in multiwalled carbon nanotubes can be used as robust nanoscale motion enabling mechanisms f...

2012
Sushil Kumar Victoria Vicente-Beckett

Multiwalled carbon nanotubes were used to modify the surface of a glassy carbon electrode to enhance its electroactivity. Nafion served to immobilise the carbon nanotubes on the electrode surface. The modified electrode was used to develop an analytical method for the analysis of ascorbic acid (AA) by square-wave voltammetry (SWV). The oxidation of ascorbic acid at the modified glassy carbon el...

   Carbon nanotubes (CNTs) have very promising applications for inhibition of microbial growth. The aim of this study is investigation and comparison of the effect of temperature and acidity on antimicrobial activities of pristine Multiwalled Carbon nanotubes (MWCNTs) and Multiwalled Carbon nanotubes-Arginine (MWCNTs-Arg). Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Conc...

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