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652490

Sigma-Aldrich

Carbon nanotube, single-walled, carboxylic acid functionalized

>90% carbon basis, D × L 4-5 nm × 0.5-1.5 μm , bundle dimensions, avg. no. of layers, 1

Synonym(s):

SWNT, carboxylic acid functionalized

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About This Item

UNSPSC Code:
12352103
NACRES:
NA.23

Quality Level

100

assay

>90% carbon basis

form

powder

feature

avg. no. of layers 1

extent of labeling

1.0-3.0 atom% carboxylic acid

D × L

4-5 nm × 0.5-1.5 μm , bundle dimensions

impurities

5-8% metals

solubility

H2O: dispersible 0.1 mg/mL
DMF: dispersible 1.0 mg/mL

functional group

carboxyl

Related Categories

General description

Single walled nanotubes were prepared by the electric arc discharge method. The SWNTs were functionalized by purifying them in nitric acid. The carboxylic acid (-COOH) functionality along the length of the nanotube can be derivatized with a variety of functional groups. The average diameter of the nanotubes is 1.4nm ± 0.1nm. Transport properties of the SWNTs in soil was studied.

Application

Carboxylated SWNTs were used to modify an indium tin oxide (ITO) electrode towards the fabrication of a novel electrochemical immunosensor. Carboxylated SWNTs was further multifunctionalized and were used in studying the influence of attached chemical group on the sorption of pyrene conjugates of oligonucleotides. An electrochemical DNA biosensor was reportedly designed using functionalized SWNTs. It was used in the preparation of the chlorocarbonyl-functionalized SWNT. It was used to fabricate SWNTs/(Pb, Zn)-phosphate glass composite structure for the dual use as light sensor and photocurrent converter. Interaction of carboxylated SWNT with Caco-2 was investigated in detail.

Packaging

Packaged in glass bottles

Physical properties

The type of carboxylic group is: -COOH.

Preparation Note

Electric Arc Discharge Method

Analysis Note

Carbonaceous content

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Aiping Yu et al.
Journal of the American Chemical Society, 128(30), 9902-9908 (2006-07-27)
We report a further advance in the bulk purification of nitric acid-treated single-walled carbon nanotubes (SWNTs) by use of high-speed centrifugation. We have already shown that low-speed centrifugation is effective in removing amorphous carbon (AC). In these earlier experiments, the
Optimization of the Ni-Y Composition in Bulk Electric Arc Synthesis of Single-Walled Carbon Nanotubes by Using Near-Infrared Spectroscopy
Itkis, M.E. et al.
The Journal of Physical Chemistry B, 108, 12770-12775 (2004)
Single-walled carbon nanotube/(Pb, Zn)-phosphate glass heterostructure: an optical sensor and efficient photocurrent converter
Balaji S, et al.
Journal of Physics D: Applied Physics, 45(32) (2012)
Fluorecently labeled bionanotransporters of nucleic acid based on carbon nanotubes.
Novopashina, DS, et al.
ARKIVOC (Gainesville, FL, United States) (2012)
Dendron-tethered and templated CdS quantum dots on single-walled carbon nanotubes.
SH, et al.
Journal of the American Chemical Society, 128(23), 7505-7509 (2006)
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