Dispersibility of Carbon Nanotubes

Availability of a stable carbon nanotube suspension is a prerequisite for production of polymer composites with carbon nanotube as additives. In this work nanotube suspensions, which have been prepared from various nanotubes in different dispersion agents, were compared. Dispersibility of the samples was investigated by scanning electon microscopy and atomic force microscopy. Solution of a non-ionic surfactant was also used successfully as a new dispersion agent. Geometrical parameters of the carbon nanotubes were determined by using atomic force microscopy. Correlation was found between the dispersibility and the parameters of the nanotubes and relative permittivity of the different solvents.

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The Attachment of Carbon Nanotube on a Blunt AFM Tip Using Electric Fields

Electronic and Photonic Packaging, Electrical Systems Design and Photonics, and Nanotechnology ◽

10.1115/imece2004-61549 ◽

2004 ◽

Author(s):

Hyung Woo Lee ◽

Soon Geun Kwon ◽

Soo Hyun Kim ◽

Yoon Keun Kwak ◽

Chang Soo Han

Keyword(s):

Carbon Nanotubes ◽

Atomic Force Microscopy ◽

Carbon Nanotube ◽

Electric Fields ◽

Low Cost ◽

Reliable Technique ◽

Force Microscopy ◽

Atomic Force

We report a simple, low cost, reliable technique of making carbon nanotube (CNT) modified atomic force microscopy (AFM) tip. We used the dielectrophoresis and the electrophoresis to align and deposit carbon nanotubes on the end of the AFM tip. From the simulation and the various experiments, we obtained the optimal electric condition, 0.32Vpp/μm. Also, we found that the blunt shape of the tip’s apex is more effective than sharpened one. Through the experiments, we verified that the blunt shape is more effective over 50% than the sharpened one in the attachment of CNTs. By comparing the scanning results between the CNT modified tip and a normal AFM tip, we obtained the improvement in efficiency of 23%.

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Atomic Force Microscopy of Single-Walled Carbon Nanotubes Using Carbon Nanotube Tip

Japanese Journal of Applied Physics ◽

10.1143/jjap.39.3707 ◽

2000 ◽

Vol 39 (Part 1, No. 6B) ◽

pp. 3707-3710 ◽

Cited By ~ 26

Author(s):

Nami Choi ◽

Takayuki Uchihashi ◽

Hidehiro Nishijima ◽

Takao Ishida ◽

Wataru Mizutani ◽

...

Keyword(s):

Carbon Nanotubes ◽

Atomic Force Microscopy ◽

Carbon Nanotube ◽

Single Walled Carbon Nanotubes ◽

Force Microscopy ◽

Single Walled Carbon ◽

Atomic Force ◽

Walled Carbon Nanotubes

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Quantitative Conductive Atomic Force Microscopy on Single-Walled Carbon Nanotube-Based Polymer Composites

ACS Applied Materials & Interfaces ◽

10.1021/acsami.6b06201 ◽

2016 ◽

Vol 8 (30) ◽

pp. 19701-19708 ◽

Cited By ~ 1

Author(s):

Oana A. Bârsan ◽

Günter G. Hoffmann ◽

Leendert G. J. van der Ven ◽

Gijsbertus de With

Keyword(s):

Atomic Force Microscopy ◽

Carbon Nanotube ◽

Polymer Composites ◽

Conductive Atomic Force Microscopy ◽

Single Walled Carbon Nanotube ◽

Force Microscopy ◽

Single Walled Carbon ◽

Atomic Force

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SWNT NETWORK for BIOMOLECULE DETECTION

MRS Proceedings ◽

10.1557/proc-858-hh14.8 ◽

2004 ◽

Vol 858 ◽

Author(s):

Massood Z. Atashbar ◽

Bruce Bejcek ◽

Srikanth Singamaneni

Keyword(s):

Carbon Nanotubes ◽

Atomic Force Microscopy ◽

Carbon Nanotube ◽

Quartz Crystal Microbalance ◽

Quartz Crystal ◽

Biomolecule Detection ◽

Force Microscopy ◽

Atomic Force ◽

Detection Of Biomolecules ◽

Swnt Network

ABSTRACTIn this paper we describe a single wall carbon nanotube (SWNT) based biological sensor for the detection of biomolecules using streptavidin and IgG. Two types of sensing mechanisms have been used to demonstrate the ability of carbon nanotubes to form nanoscale biosensors. The first sensing mechanism involves a CNT based conduction sensor in which the decrease in the current was observed when the specific biomolecule was bound. In the second mechanism Quartz Crystal Microbalance (QCM) was used to quantify the mass of the biomolecule bound on the sidewalls of the carbon nanotube. Both sensing mechanisms proved to be efficient and consistent. Immobilization of the biomolecules on the carbon nanotube surface was confirmed by Atomic Force Microscopy.

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