Glucose Biosensors Based on Vertically-Aligned Multi-Walled Carbon Nanotubes

2009 ◽  
Vol 1204 ◽  
Author(s):  
Archana Pandey ◽  
Abhishek Prasad ◽  
Jason Moscatello ◽  
Yoke Khin Yap
Keyword(s):  
Carbon Nanotubes ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Storage Conditions ◽  
Biological Molecules ◽  
Multiwalled Carbon ◽  
Multi Walled Carbon Nanotubes ◽  
Vertically Aligned ◽  
Walled Carbon Nanotubes

AbstractVertically-aligned multiwalled carbon nanotubes (VA-MWCNTs) were grown using plasma enhanced chemical vapor deposition (PECVD) technique. These VA-MWCNTs were then dip coated by Poly methyl methacrylate (PMMA) followed by annealing. Samples were then polished to expose the tips of CNTs. Biological molecules Glucose Oxidase (GOx) were then immobilized on the exposed tips of these nanoelectrode ensembles. Here we present further characterization of these devices, with results on the detection limits and measurement stability. We found that these sensors can be reused for longer than eight months when kept in proper storage conditions.

Electron Microscopy and Raman Characterization of Multi-Walled Carbon Nanotubes Grown by Chemical Vapor Deposition

2008 ◽  
Vol 14 (S2) ◽  
pp. 304-305
Author(s):  
M Ellis ◽  
T Jutarosaga ◽  
S Smith ◽  
Y Wei ◽  
S Seraphin
Keyword(s):  
Electron Microscopy ◽  
Carbon Nanotubes ◽  
Chemical Vapor Deposition ◽  
New Mexico ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Raman Characterization

Extended abstract of a paper presented at Microscopy and Microanalysis 2008 in Albuquerque, New Mexico, USA, August 3 – August 7, 2008

Field emission property of vertically aligned nitrogen-doped multi-walled carbon nanotubes produced by chemical vapor deposition

2018 ◽  
Vol 5 (7) ◽  
pp. 14965-14969 ◽  
Author(s):  
Pongpanot Rindhatayathon ◽  
Worawut Muangrat ◽  
Mati Horprathum ◽  
Suphakan Kijamnajsuk ◽  
Wolfgang Pfeiler ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Chemical Vapor Deposition ◽  
Field Emission ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Field Emission Property ◽  
Nitrogen Doped ◽  
Multi Walled Carbon Nanotubes ◽  
Vertically Aligned ◽  
Walled Carbon Nanotubes

Characterization of thin multi-walled carbon nanotubes synthesized by catalytic chemical vapor deposition

2005 ◽  
Vol 413 (1-3) ◽  
pp. 135-141 ◽  
Author(s):  
Dong Young Kim ◽  
Cheol-Min Yang ◽  
Young Soo Park ◽  
Ki Kang Kim ◽  
Seung Yol Jeong ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Chemical Vapor Deposition ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Catalytic Chemical Vapor Deposition ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Fabrication Routes of Microsized Electrochemical Biosensors Based on Single-Walled Carbon Nanotubes

2007 ◽  
Vol 539-543 ◽  
pp. 1098-1103 ◽  
Author(s):  
Federica Valentini ◽  
Silvia Orlanducci ◽  
M.L. Terranova ◽  
Giuseppe Palleschi
Keyword(s):  
Carbon Nanotubes ◽  
Vapor Deposition ◽  
Electrochemical Sensors ◽  
Chemical Vapor ◽  
Single Walled Carbon Nanotubes ◽  
Biological Molecules ◽  
Single Wall Carbon Nanotubes ◽  
Hot Filament ◽  
Walled Carbon Nanotubes

In this work two different synthesis processes for Single-Wall Carbon Nanotubes deposition (such as the Hot Filament-Chemical Vapor Deposition, HF-CVD, and the electrophoretic deposition, EPD) on microwire surfaces, were described. Then, the morphological and structural characterization of SWNT-modified microwires were performed by Scanning Electron Microscopy (FE-SEM) and Raman Spectroscopy, respectively. Finally, the nanostrcutured microelectrodes were electrochemically characterized using NADH, NAD+, epinephrine, and ascorbic acid (AA), useful biological molecules to develop electrochemical sensors and biosensors.

Chemical Vapor Deposition Growth, Optical, and Thermal Characterization of Vertically Aligned Single-Walled Carbon Nanotubes

2012 ◽  
Vol 134 (5) ◽  
Author(s):  
Shigeo Maruyama ◽  
Rong Xiang
Keyword(s):  
Thermal Conductivity ◽  
Carbon Nanotubes ◽  
Growth Rate ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Vertically Aligned ◽  
Walled Carbon Nanotubes

Vertically aligned single-walled carbon nanotubes (VA-SWNTs) is expected to be an extra-ordinal material for various optical, electrical, energy, and thermal devices. The recent progress in growth control and characterization techniques will be discussed. The chemical vapor deposition (CVD) growth mechanism of VA-SWNTs is studied based on the in situ growth monitoring by laser absorption during CVD. The growth curves are characterized by an exponential decay of the growth rate from the initial rate determined by ethanol pressure. The initial growth rate and decay of it are discussed with carbon over-coat on metal catalysts and gas phase thermal decomposition of precursor ethanol. For the precisely patterned growth of SWNTs, we recently propose a surface-energy-difference driven selective deposition of catalyst for localized growth of SWNTs. For a self-assembled monolayer (SAM) patterned Si surface, catalyst particles deposit and SWNTs grow only on the hydrophilic regions. The proposed all-liquid-based approach possesses significant advantages in scalability and resolution over state-of-the-art techniques, which we believe can greatly advance the fabrication of nanodevices using high-quality as-grown SWNTs. The optical characterization of the VA-SWNT film using polarized absorption, polarized Raman, and photoluminescence spectroscopy will be discussed. Laser-excitation of a vertically aligned film from top means that each nanotube is excited perpendicular to its axis. Because of this predominant perpendicular excitation, interesting cross-polarized absorption and confusing and practically important Raman features are observed. The extremely high and peculiar thermal conductivity of single-walled carbon nanotubes has been explored by nonequilibrium molecular dynamics simulation approaches. The thermal properties of the vertically aligned film and composite materials are studied by several experimental techniques and Monte Carlo simulations based on molecular dynamics inputs of thermal conductivity and thermal boundary resistance. Current understanding of thermal properties of the film is discussed.

Structure Controlled Synthesis of Vertically Aligned Carbon Nanotubes Using Thermal Chemical Vapor Deposition Process

2010 ◽  
Vol 133 (3) ◽  
Author(s):  
Myung Gwan Hahm ◽  
Young-Kyun Kwon ◽  
Ahmed Busnaina ◽  
Yung Joon Jung
Keyword(s):  
Carbon Nanotubes ◽  
Chemical Vapor Deposition ◽  
Vapor Deposition ◽  
Large Scale ◽  
Chemical Vapor ◽  
Controlled Synthesis ◽  
Full Potential ◽  
Thermal Chemical Vapor Deposition ◽  
Vertically Aligned ◽  
Walled Carbon Nanotubes

Due to their unique one-dimensional nanostructure along with excellent mechanical, electrical, and optical properties, carbon nanotubes (CNTs) become a promising material for diverse nanotechnology applications. However, large-scale and structure controlled synthesis of CNTs still have many difficulties due to the lack of understanding of the fundamental growth mechanism of CNTs, as well as the difficulty of controlling atomic-scale physical and chemical reactions during the nanotube growth process. Especially, controlling the number of graphene wall, diameter, and chirality of CNTs are the most important issues that need to be solved to harness the full potential of CNTs. Here we report the large-scale selective synthesis of vertically aligned single walled carbon nanotubes (SWNTs) and double walled carbon nanotubes (DWNTs) by controlling the size of catalyst nanoparticles in the highly effective oxygen assisted thermal chemical vapor deposition (CVD) process. We also demonstrate a simple but powerful strategy for synthesizing ultrahigh density and diameter selected vertically aligned SWNTs through the precise control of carbon flow during a thermal CVD process.

Sign in / Sign up

Export Citation Format

Share Document