Preparation and Properties of Polymer-Wrapped Single-Walled Carbon Nanotubes

Star, Alexander; Stoddart, J. Fraser; Steuerman, David W.; Diehl, Mike; Boukai, Akram; Wong, E.W.M.; Yang, Xin; Chung, Sung Wook; Choi, Hyeon Yeong; Heath, James R.

doi:10.1002/1521-3773(20010504)40:9<1721::aid-anie17210>3.0.co;2-f

Cited by 946 publications

(316 citation statements)

References 28 publications

Supporting

Mentioning

305

Contrasting

Unclassified

Order By: Relevance

“…Noncovalent functionalization has also been shown to be effective in the dissolution of the carbon nanotubes, 98,99 together with polymer wrapping procedures. [100][101][102] …”

Section: Scheme 1 Reactions Of Ap-swntsmentioning

confidence: 99%

Chemistry of Single-Walled Carbon Nanotubes

et al. 2002

View full text Add to dashboard Cite

In this Account we highlight the experimental evidence in favor of our view that carbon nanotubes should be considered as a new macromolecular form of carbon with unique properties and with great potential for practical applications. We show that carbon nanotubes may take on properties that are normally associated with molecular species, such as solubility in organic solvents, solutionbased chemical transformations, chromatography, and spectroscopy. It is already clear that the nascent field of nanotube chemistry will rival that of the fullerenes.

show abstract

“…Noncovalent functionalization has also been shown to be effective in the dissolution of the carbon nanotubes, 98,99 together with polymer wrapping procedures. [100][101][102] …”

Section: Scheme 1 Reactions Of Ap-swntsmentioning

confidence: 99%

Chemistry of Single-Walled Carbon Nanotubes

et al. 2002

View full text Add to dashboard Cite

show abstract

“…These unique properties of the CNTs essentially allow them to interact with some organic compounds, (polynuclear) aromatic compounds, in particular, through π-π electronic and hydrophobic interactions, and thus to form new nanostructures, as previously demonstrated. 21,26,27 Since TBO is a typical polynuclear aromatic compound (its chemical structure was displayed in Scheme 1), it can also be assembled onto the hydrophobic surface of MWNTs through π-π electronic and hydrophobic interactions to form new kinds of stable nanomaterials.…”

Section: Tbo Assembled Onto the Surface Of Mwnts And The Characterizamentioning

confidence: 99%

“…These functionalization strategies have generated many new materials with excellent functions, which are very attractive for practical applications. 26,27 We describe here a simple method for constructing a new electrochemical functional nanostructure of TBO-MWNTs, which is based on a redox mediator, TBO assembled onto the surface of a MWNTs modified glassy carbon electrode. In this case the MWNTs act as a support of the redox mediator as well as a catalyst.…”

Section: Introductionmentioning

confidence: 99%

Low-Potential Nicotinamide Adenine Dinucleotide Detection at a Glassy Carbon Electrode Modified with Toluidine Blue O Functionalized Multiwall Carbon Nanotubes

et al. 2006

View full text Add to dashboard Cite

The determination of β-nicotinamide adenine dinucleotide (NADH) is very important, because the NAD + /NADH couple is a cofactor system for a large number of dehydrogenase enzymes (>300) and a component of biomarker systems.1 However, the direct oxidation of NADH at a bare electrode surface is highly irreversible, and needs a considerable overpotential (>1 V), 2,3 which is increased further by the presence of an enzyme. One of the most serious problems resulting from a high overpotential detection is fouling of the electrode surface associated with the accumulation of reaction products. 4 Much effort was devoted to pursuing new electrode materials and methods to decrease the detection potential and to avoid electrode surface fouling. One of the recently emerged and efficient ways to circumvent a high overpotential for the oxidation of NADH was to use carbon nanotubes (CNTs), since CNTs could significantly reduce the NADH overpotential, 5-10 although the decrease was not adequate.Another conventional approach to lower the oxidation potential of NADH is to apply redox mediators with low formal potentials. 11 Phenothiazine derivatives, such as azure (AZU) dyes, were usually utilized in this respect, because they are chemically reactive and display negative formal potentials (vs. SCE) at neutral pH. NADH detectors were developed based on AZU dyes that have been either adsorbed, 12 electropolymerized 13,14 or covalently attached 15 to the electrode surface. However, such modified surfaces displayed a rather limited stable ability and redox mediation capacity. The integration of phenothiazine derivatives and MWNTs in a polymeric matrix 16,17 for the determination of NADH with enhanced electrocatalytic characteristics was also reported, but the reported method was somewhat complicated. Hence, pursuing a simpler approach and new electrode materials to further decrease the overpotential for NADH oxidation and to minimize surface passivation effects to improve the detection sensitivity and redox mediation capacity is still an obvious challenge.In recent years, increasing interests have been focused on the rational functionalization of CNTs to fabricate functional nanostructures with novel properties. Some creative methods were used for the functionalization of CNTs with polymers, 18,19 biomolecules, 20,21 metal nanoparticles 22,23 and polynuclear aromatic compounds 24,25 through a covalent or noncovalent interaction. These functionalization strategies have generated many new materials with excellent functions, which are very attractive for practical applications. 26,27We describe here a simple method for constructing a new electrochemical functional nanostructure of TBO-MWNTs, which is based on a redox mediator, TBO assembled onto the surface of a MWNTs modified glassy carbon electrode. In this case the MWNTs act as a support of the redox mediator as well as a catalyst. The experimental results showed that the TBOMWNTs modified GC electrodes exhibited excellent electrocatalytic activity toward the oxidation of NADH. To the...

show abstract

“…3.2) . The strong interaction between the conjugated polymer and the nanotube remarkably increased CNT dispersibilty [54,61,[66][67][68]. Some conjugated polymers have been used to purify CNTs by efficient phase separation from the main impurity, consisting of amorphous graphitic shells [62,64,65].…”

Section: P-p Stacking Interactionsmentioning

confidence: 99%