نتایج جستجو برای: Functionalization Multi-Walled

تعداد نتایج: 485269  

Journal: :international journal of advanced biological and biomedical research 2014
elnaz nassaghi javad azizian sajjad sedaghat

in this paper, the chemical functionalization of carboxylate multi-walled carbon nanotubes by methyl (triphenyl phosphoranylidene) acetate have been investigated. phosphorus ylides are important compound in organic chemistry. at first, methyl (triphenyl phosphoranylidene) acetate, synthesized from salt metod in two steps: the formation of the phosphonium salt and the deprotonation of the latter...

Journal: :international journal of nano dimension 0
h. tahermansouri department of chemistry, islamic azad university, ayatollah amoli branch , amol, iran. d. chobfrosh khoei department of science, islamic azad university, shabestar branch , shabestar, iran. m. meskinfam department of chemistry, islamic azad university, lahijan branch, lahijan, iran.

in this paper, the chemical functionalization of carboxylated multi-walled carbon nanotubes (mwnt-cooh) by 1,2-phenylenediamine, have been investigated. mwnt-benzimidazole is obtained through mwnt-amide reaction with pocl3 after 72h, which is confirmed by ft-ir, sem, tga, and elemental analysis. these functionalizations have been chosen due to –nh2 and nhco active sites in mwnt-amide for future...

Journal: :international journal of nanoscience and nanotechnology 2010
s. a. shojaosadati f. ganji b. zahedi h. a. rafiee-pour h. ghourchian

carbon nanotubes are regarded as promising building blocks for the construction of novel biosensors due to their unique properties like fast electron transfer, high electrocatalytic effect and good biocompatibility. in the present study, the effect of different chemical oxidation’s methods of multi-walled carbon nanotubes (mwcnts) on the electrochemical behavior of modified graphite electrodes ...

Behrooz Mirza Shahab Zomorodbakhsh

In this project, a three-component functionalization of carboxylated shortend multi-walled carbon nanotubes (MWNT-COOH) by Histidine derivative via amidation method have been investigated. The functionalized MWNTs were characterized by Fourier Transform Infrared spectroscopy (FT-IR), Raman spectroscopy, elemental analysis and scanning electron microscopy (SEM). 

D. Chobfrosh khoei H. Tahermansouri, M. Meskinfam

In this paper, the chemical functionalization of carboxylated multi-walled carbon nanotubes (MWNT-COOH) by 1,2-phenylenediamine, have been investigated. MWNT-benzimidazole is obtained through MWNT-Amide reaction with POCl3 after 72h, which is confirmed by FT-IR, SEM, TGA, and elemental analysis. These functionalizations have been chosen due to –NH2 and NHCO active sites in MWNT-Amide for future...

D. Chobfrosh khoei H. Tahermansouri, M. Meskinfam

In this paper, the chemical functionalization of carboxylated multi-walled carbon nanotubes (MWNT-COOH) by 1,2-phenylenediamine, have been investigated. MWNT-benzimidazole is obtained through MWNT-Amide reaction with POCl3 after 72h, which is confirmed by FT-IR, SEM, TGA, and elemental analysis. These functionalizations have been chosen due to –NH2 and NHCO active sites in MWNT-Amide for future...

Journal: :Angewandte Chemie 2012
Khuloud T Al-Jamal Antonio Nunes Laura Methven Hanene Ali-Boucetta Shouping Li Francesca M Toma M Antonia Herrero Wafa' T Al-Jamal Huub M M ten Eikelder Julie Foster Stephen Mather Maurizio Prato Alberto Bianco Kostas Kostarelos

Getting rid of the tubes: An assessment of the retention of functionalized multi-walled carbon nanotubes (MWNTs) in the organs of mice was carried out using single photon emission computed tomography and quantitative scintigraphy (see scheme). Increasing the degree of functionalization on MWNTs enhanced renal clearance, while lower functionalization promoted reticuloendethelial system accumulat...

Journal: :Chemical communications 2010
Giacomo Ghini Lapo Luconi Andrea Rossin Claudio Bianchini Giuliano Giambastiani Stefano Cicchi Luisa Lascialfari Alberto Brandi Alessandra Giannasi

An unprecedented functionalization of multi-walled carbon nanotubes (MWCNTs) has been conveniently achieved by the 1,3-dipolar cycloaddition of a cyclic nitrone. This organic functionalization yields materials with a great solubility in DMF (close to 10 mg per mL of DMF) preferentially occurring at the defects of the MWCNT sp(2) network.

Elnaz Nassaghi, Javad Azizian, Sajjad Sedaghat

In this paper, the chemical Functionalization of Carboxylate multi-walled carbon nanotubes by methyl (triphenyl phosphoranylidene) acetate have been investigated. Phosphorus Ylides are important compound in organic chemistry. At first, methyl (triphenyl phosphoranylidene) acetate, synthesized from salt metod in two steps: the formation of the phosphonium salt and the deprotonation of the latter...

Journal: :Nanoscale 2015
Z Syrgiannis A Bonasera E Tenori V La Parola C Hadad M Gruttadauria F Giacalone M Prato

Control over chemical functionalization is a crucial point in the field of nanotechnology. Herein, we present the covalent functionalization of several carbon nanoforms (single-walled carbon nanotubes, double-walled carbon nanotubes, multi-walled carbon nanotubes and carbon nanohorns) by means of diphenyl dichalcogenides. These ones show different reactivity to the nanomaterials and are able to...

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