نتایج جستجو برای: carbon nanotubes cnts

تعداد نتایج: 287421  

F. Bisepar H. Aghaie R. Cheraghali S. A. Khorrami S. Moradi Z. Haghparast

Using C2H2, 112 and As gases at 550'C, carbon nanotubes were fabricated on the surfaces of twosubstrates coated by nano thin layers of metal catalysts by DC magnetron sputtering. AYStamless steel andFe/CteAl, by thermal chemical vapor deposition (TCVD) The surface properties of the substrates wereparticularly investigated, and the effect of treatment of the substrates on the CNT's growth is cri...

Journal: :Journal of physics. Condensed matter : an Institute of Physics journal 2014
A Sgouros M M Sigalas K Papagelis G Kalosakas

Using molecular dynamics simulations with semi-empirical potentials, we demonstrate a method to fabricate carbon nanotubes (CNTs) from graphene nanoribbons (GNRs), by periodically inserting appropriate structural defects into the GNR crystal structure. We have found that various defect types initiate the bending of GNRs and eventually lead to the formation of CNTs. All kinds of carbon nanotubes...

Journal: :Physical chemistry chemical physics : PCCP 2014
Wei Chen Lujiang Huang Jun Hu Tengfei Li Feifei Jia Yu-Fei Song

Carbon nanotubes (CNTs) possess excellent structural and electronic properties and have been widely investigated as anode materials. Polyoxometalates (POMs) exhibit superior physical properties such as electronic versatility, redox characteristics and unique molecular structures. In this paper, we report the covalent modification of carbon nanotubes (CNTs) with organosilica-containing polyoxome...

Journal: :Gene 2012
Chen Qu Lixin Wang Jiuyang He Jianhua Tan Wei Liu Shuping Zhang Changwen Zhang Zhe Wang Shouhai Jiao Sijin Liu Guibin Jiang

Carbon nanotubes (CNTs) are largely produced and widely used because of their novel features, and the annual yield is expected to increase dramatically in the near future. Meanwhile, adverse health influences from exposure to CNTs are widely concerned, partially due to their asbestoid characteristics. In the current study, to assess the inflammatory responses and related mechanisms, we establis...

2013
C. S. Cojocaru F. Le Normand

515 (2006) 53 – 58 DOI: http://dx.doi.org/10.1016/j.tsf.2005.12.137 On the role of activation mode in the plasmaand hot filamentsenhanced catalytic chemical vapour deposition of vertically aligned carbon nanotubes C.S. Cojocaru , F. Le Normand Groupe Surfaces and Interfaces, IPCMS, UMR 7504 CNRS, Bâ t 69, 23, rue du Loess, 67034 Strasbourg Cedex, France 1 Present address: Laboratoire de P...

The The main objective of this research paper is to present 3-D elasticity solution for free vibration analysis of elastically supported continuously graded carbon nanotube-reinforced (CGCNTR) annular plates. The volume fractions of oriented, straight single-walled carbon nanotubes (SWCNTs) are assumed to be graded in the thickness direction. An equivalent continuum model based on the Eshelby-M...

F.S. Garmaroudi, R.A.R. Vahdati

Carbon nanotubes (CNTs) are high aspect ratio allotropes of carbon. Because of their unique physical and chemical characteristics, they are nominated for a vast variety of applications in the biomedical field. Their very low solubility is the only problem of them which is solved by different methods of Functionalization. After discoveries in the last few years of the capacity of CNTs to penetra...

Journal: :Chemical communications 2011
Siguo Chen Zidong Wei Lin Guo Wei Ding Lichun Dong Peikang Shen Xueqiang Qi Li Li

High dispersion Pt nanoparticles supported on surface thiolation functional carbon nanotubes (SH-CNTs) is presented and electrochemical measurements confirm that the Pt/SH-CNTs catalyst shows good durability and excellent ORR activity.

2011
M. Jung M. Huh Y. Park S. Kang R. Russell P. Holden S. Yun

Poly(3-hydroxybutyrate) (PHB) is a natural, linear, thermoplastic polyester synthesized by microorganisms as intracellular carbon reserves and ion sinks in response to limited nutrient availability and imposed stress conditions. The PHB has become one of the most interesting biomaterials for application in tissue engineering due to its excellent biodegradability and biocompatibility. Nanocompos...

Journal: :Nanomedicine : nanotechnology, biology, and medicine 2010
Constantine P Firme Prabhakar R Bandaru

UNLABELLED Carbon nanotubes (CNTs) have recently emerged as a new option for possible use in methodologies of cancer treatment, bioengineering, and gene therapy. This review analyzes the potential, through possible toxicologic implications, of CNTs in nanomedicine. Generally, proven success in other fields may not translate to the use of CNTs in medicine for reasons including inconsistent data ...

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