نتایج جستجو برای: al2o3 mwcnt

تعداد نتایج: 13760  

Journal: :Dental materials journal 2009
Michiko Terada Shigeaki Abe Tsukasa Akasaka Motohiro Uo Yoshimasa Kitagawa Fumio Watari

Carbon nanotubes (CNTs) are one of the most interesting nanomaterials because of their excellent characteristics. In this study, a transparent CNTs coating for cell culture dishes was developed and its properties for cell culture were estimated. Carboxylated multiwalled carbon nanotubes (MWCNTs) were dispersed in aqueous sodium cholate solution and applied on a collagen type I-coated cell cultu...

Journal: :Micron 2010
Sumit Kumar Anshu Sharma Balram Tripathi Subodh Srivastava Shweta Agrawal M Singh Kamlendra Awasthi Y K Vijay

The multi-walled carbon nanotube (MWCNT) dispersed polymethylmethacrylate (PMMA) composite membranes have been prepared for hydrogen gas permeation application. Composite membranes are characterized by Raman spectroscopy, optical microscopy, X-ray diffraction, electrical measurements and gas permeability measurements. The effect of electric field alignment of MWCNT in PMMA matrix on gas permeat...

Journal: :Physical chemistry chemical physics : PCCP 2016
Shengnan Wang Artem R Oganov Guangrui Qian Qiang Zhu Huafeng Dong Xiao Dong M Mahdi Davari Esfahani

We explored the B-C-O system at pressures in the range 0-50 GPa by ab initio variable-composition evolutionary simulations in the hope of discovering new stable superhard materials. A new tetragonal thermodynamically stable phase B4CO4, space group I4[combining macron], and two low-enthalpy metastable compounds (B6C2O5, B2CO2) have been discovered. Computed phonons and elastic constants show th...

2015
Germano S. Iannacchione

Polymer nanocomposite materials of higher thermal and electrical transport properties are important to nanotech‐ nology applications such as thermal management, packag‐ ing, labelling and the textile industry. In this work, thermal and electrical conductivities in nanocomposites of multiwalled carbon nanotubes (MWCNT) and isotactic polypro‐ pylene (iPP) are investigated in terms of MWCNT loadin...

Journal: :Nanoscale 2015
Yanli Zhou Dong Yan Huayun Xu Shuo Liu Jian Yang Yitai Qian

A one-dimensional MWCNT@a-C@Co9S8 nanocomposite has been prepared via a facile solvothermal reaction followed by a calcination process. The amorphous carbon layer between Co9S8 and MWCNT acts as a linker to increase the loading of sulfides on MWCNT. When evaluated as anode materials for lithium ion batteries, the MWCNT@a-C@Co9S8 nanocomposite shows the advantages of high capacity and long life,...

Journal: :Journal of biomedical materials research. Part B, Applied biomaterials 2010
Eri Hirata Motohiro Uo Yoshinobu Nodasaka Hiroko Takita Natsumi Ushijima Tsukasa Akasaka Fumio Watari Atsuro Yokoyama

The cell adhesion in a multiwalled carbon nanotube-coated collagen sponge (MWCNT-coated sponge) was investigated. Immediately after seeding, the cells adhered to the inner surface of the MWCNT-coated sponge and a significantly larger number of cells were observed there than for a pure collagen sponge used as control. On the MWCNT-coated sponge, the cells appeared favorable adhesion and spread i...

2016
Bruno VM Rodrigues Nelly CS Leite Bruno das Neves Cavalcanti Newton S da Silva Fernanda R Marciano Evaldo J Corat Thomas J Webster Anderson O Lobo

Nanohydroxyapatite (nHAp) is an emergent bioceramic that shows similar chemical and crystallographic properties as the mineral phase present in bone. However, nHAp presents low fracture toughness and tensile strength, limiting its application in bone tissue engineering. Conversely, multi-walled carbon nanotubes (MWCNTs) have been widely used for composite applications due to their excellent mec...

Journal: :Journal of biomedical materials research. Part B, Applied biomaterials 2009
Eri Hirata Motohiro Uo Hiroko Takita Tsukasa Akasaka Fumio Watari Atsuro Yokoyama

Carbon nanotubes (CNTs) have attractive biochemical properties such as strong cell adhesion and protein absorption, which are very useful for a cell cultivation scaffold. In this study, we prepared a multiwalled carbon nanotube-coated collagen sponge (MWCNT-coated sponge) to improve the surface properties of the collagen sponge, and its cell culturing properties were examined. The suface of the...

Journal: :Nanoscale 2011
Jayaprakash Khanderi Cosmin Contiu Jörg Engstler Rudolf C Hoffmann Jörg J Schneider Alfons Drochner Herbert Vogel

Cuprous oxide agglomerates composed of 4-10 nm Cu2O nanoparticles were deposited on multiwalled carbon nanotubes (MWCNTs) and on ZnO/MWCNTs to give binary [Cu2O/MWCNT] and ternary [Cu2O/ZnO/MWCNT] composites. Di-aqua-bis[2-(methoxyimino)propanoato]copper Cu[O2CCCH3NOMe](2)·2H2O 1 in DMF was used as single source precursor for the deposition of nanoscaled Cu2O. The precursor decomposes either in...

2004
T. D. Yuzvinsky A. M. Fennimore A. Zettl

It has been shown that a multi-walled carbon nanotube (MWCNT) can be used as the rotation enabling element for nanoelectromechanical systems. Modification of the MWCNT to create a rotational bearing in previous devices has concentrated on smaller diameter tubes and mechanical methods to create the bearing. We here investigate reactive ion etching of a MWCNT as a means to engineer nanomotor comp...

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