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750522

Sigma-Aldrich

Carbon nanotube, single-walled

98% (Semiconducting), avg. no. of layers, 1

Synonym(s):

IsoNanotubes-S™, SWCNT, semiconducting, SWCNT, SWNT, Single wall carbon nanotube

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About This Item

CAS Number:
308068-56-6
UNSPSC Code:
12352103
NACRES:
NA.23

Assay

2% (Metallic)
98% (Semiconducting)

form

solid

feature

avg. no. of layers 1

manufacturer/tradename

NanoIntegris, Inc.

L

0.3-5 μm

diameter

1.2-1.7 nm

mp

3652-3697 °C (lit.)

density

1.7-1.9 g/cm3 at 25 °C (lit.)

SMILES string

[C]

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General description

IsoNanotubes-S™ are produced by arch discharge or plasma torch. The diameter of the semiconducting single walled nanotubes range in 1.2-1.7 nm, whereas the length varies from 100nm to 4 μm. The degree of purity of the SWNTs can be determined from the absorbance spectrum. The optical absorbance of semiconducting SWNTs occurs at S22 (850-1250nm) and S33 (450-550nm). Toxic behavior of SWNTS were studied by studying the response of human hepatocarcinoma cells to SWNTs.

Application

These carbon nanotubes are produced via the arc discharge process and are purified via density gradient centrifugation.Semiconducting SWNTs can be used in various wearable and flexible devices such as bendable pressure sensor. Research applications include:
  • Electronics
  • Sensors
  • Composites
  • Energy Storage
  • Study of Life Science systems

Preparation Note

Electric Arc Discharge Method

Legal Information

Product of NanoIntegris, Inc
IsoNanotubes-S is a trademark of NanoIntegris, Inc.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Single-walled carbon nanotubes induce cytotoxicity and DNA damage via reactive oxygen species in human hepatocarcinoma cells
Alarifi S, et al.
In Vitro Cellular & Developmental Biology. Animal, 50(8), 714-722 (2014)
Chad D Vecitis et al.
ACS nano, 4(9), 5471-5479 (2010-09-04)
Single-walled carbon nanotubes (SWNTs) have been previously observed to be strong antimicrobial agents, and SWNT coatings can significantly reduce biofilm formation. However, the SWNT antimicrobial mechanism is not fully understood. Previous studies on SWNT cytotoxicity have concluded that membrane stress
Chuan Wang et al.
ACS nano, 4(12), 7123-7132 (2010-11-11)
Macroelectronic integrated circuits are widely used in applications such as flat panel display and transparent electronics, as well as flexible and stretchable electronics. However, the challenge is to find the channel material that can simultaneously offer low temperature processing, high
Amin Salehi-Khojin et al.
ACS nano, 5(1), 153-158 (2010-12-29)
There has been recent controversy whether the response seen in carbon nanotube (CNT) chemiresistors is associated with a change in the resistance of the individual nanotubes or changes in the resistance of the junctions. In this study, we carry out

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