نتایج جستجو برای: mwnt

تعداد نتایج: 344  

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). 

Journal: :Nanoscale 2013
Masayasu Nishi Takahiro Ohkubo Kazuma Tsurusaki Atsushi Itadani Bashir Ahmmad Koki Urita Isamu Moriguchi Shigeharu Kittaka Yasushige Kuroda

We shed light on the specific hydration structure around a zinc ion of nanosolution restricted in a cylindrical micropore of single-wall carbon nanotube (SWNT) by comparison with the structure restricted in a cylindrical mesopore of multi-wall carbon nanotube (MWNT) and that of bulk aqueous solution. The average micropore width of open-pore SWNT was 0.87 nm which is equivalent to the size of a ...

2011
L. Lonappan

A differential pulse voltammetric sensor for the determination of tamsulosin hydrochloride (TAM) using multiwalled carbon nanotubes (MWNTs)–Nafion-modified glassy carbon electrode (GCE) has been developed. MWNTs were dispersed in water with the help of Nafion and were used to modify the surface of GCE via solvent evaporation. At MWNT-modified electrode, TAM gave a well-defined oxidation peak at...

Journal: :Molecules 2014
Tais B Garlet Caroline T Weber Rodrigo Klaic Edson L Foletto Sergio L Jahn Marcio A Mazutti Raquel C Kuhn

The commercial inulinase obtained from Aspergillus niger was non-covalently immobilized on multiwalled carbon nanotubes (MWNT-COOH). The immobilization conditions for the carbon nanotubes were defined by the central composite rotational design (CCRD). The effects of enzyme concentration (0.8%-1.7% v/v) and adsorbent:adsorbate ratio (1:460-1:175) on the enzyme immobilization were studied. The ad...

2013
Saeed Heidari- Keshel Mahdieh Entezari Mostafa Rezaei-Tavirani Maryam Ebrahimi Majid Rezaei-Tavirani

AIM In this study, we was tried to prepare a nano compound with a new way in functionalization as anti gastric cancer candidate. BACKGROUND Functionalization of nanotubes is a useful route for modification of their biologic properties. (3-oxoindolin-2-ylidene) urea is a chemical compound that made of isatin and urea that can be useful in cancer study. PATIENTS AND METHODS MWNT-COOH was func...

2006
Jyh-Hua Ting Ching-Chieh Chiu Fuang-Yuan Huang

The material and electrical properties of the CNT single vias and array vias grown by microwave plasma-enhanced chemical vapor deposition were investigated. The diameters of multiwall carbon nanotubes (MWNTs) grown on the bottom electrode of Ta decrease with increasing pretreatment power and substrate temperature while the effects of the growth power and methane flow ratio are insignificant The...

Journal: :Molecular bioSystems 2009
Xuexiang Weng Meiyan Wang Jing Ge Shaoning Yu Baohong Liu Jiang Zhong Jilie Kong

The recombined ricin A chain protein (RTA) was transported into living cells by multiwalled carbon nanotubes (MWNTs) as a cellular carrier, as performed by natural ricin B chain protein (RTB). The conjugate of the toxin protein RTA and MWNT was found to translocate to the cytoplasm of various cell lines and performed biological functions, as evidenced by the induction of cell death. The deliver...

Journal: :Nanotechnology 2008
B Vigolo C S Cojocaru J Faerber J Arabski L Gangloff P Legagneux H Lezec F Le Normand

Using a combination of top-down lithographic techniques, isolated, individual and oriented multi-wall carbon nanotubes (MWNTs) were grown on nickel or iron nanoscaled dots. In the first step of the process, micron-sized catalytic metallic dots (either iron or nickel) were prepared using UV lithography. MWNTs were then synthesized from these catalysts using a direct current plasma-assistance and...

2001
Keat G. Ong Craig A. Grimes

A carbon dioxide (CO2) sensor is fabricated by depositing a thin layer of a multiwall carbon nanotube (MWNT) – silicon dioxide (SiO2) composite upon a planar inductorcapacitor resonant circuit. By tracking the resonant frequency of the sensor the complex permittivity of the coating material can be determined. It is shown that the permittivity of MWNTs changes linearly in response to CO2 concent...

2017
Jun Yang Tsuyohiko Fujigaya Naotoshi Nakashima

We present a new concept for homogeneous spinel nanocrystal-coating on high crystalline pristine-carbon nanotubes (CNTs) for efficient and durable oxygen evolution reaction (OER) and oxygen reduction reaction (ORR). Oxidized CNTs have widely been used to functionalize with metal or metal oxides since the defect sites act as anchoring for metal oxide binding. However, such defects on the tubes c...

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