Biochemical functionalization of vertically aligned carbon nanofibres

Fletcher, Benjamin L; McKnight, Timothy E.; Melechko, Anatoli V.; Simpson, Michael L.; Doktycz, Mitchel J.

doi:10.1088/0957-4484/17/8/041

Cited by 27 publications

(21 citation statements)

References 23 publications

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“…Fletcher developed two attachment schemes making use of a class of heterocyclic aromatic dye compounds for specific adsorption onto VACNFs and covalently coupling biomolecules through cross-linking to carboxylic-acid sites on the sidewalls of the CNFs [55]. The adsorption and covalent coupling properties were consistent with the physical structure and the chemical characteristics of the VACNFs.…”

Section: Functionalization Of Carbon Nanofibersmentioning

confidence: 94%

Functionalized carbon nanotubes and nanofibers for biosensing applications

Wang

Lin

2008

TrAC Trends in Analytical Chemistry

267

131

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This review summarizes recent advances in electrochemical biosensors based on carbon nanotubes (CNTs) and carbon nanofibers (CNFs) with an emphasis on applications of CNTs. CNTs and CNFs have unique electric, electrocatalytic and mechanical properties, which make them efficient materials for developing electrochemical biosensors.We discuss functionalizing CNTs for biosensors. We review electrochemical biosensors based on CNTs and their various applications (e.g., measurement of small biological molecules and environmental pollutants, detection of DNA, and immunosensing of disease biomarkers). Moreover, we outline the development of electrochemical biosensors based on CNFs and their applications. Finally, we discuss some future applications of CNTs.

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Section: Functionalization Of Carbon Nanofibersmentioning

confidence: 94%

Functionalized carbon nanotubes and nanofibers for biosensing applications

Wang

Lin

2008

TrAC Trends in Analytical Chemistry

267

131

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“…30. 10 Confocal microscopy following incubation with complementary dye-labeled oligos presented fluorescent response along the entire length of 4 m tall nanofibers, putatively due to the presence of uCOOH and oligo capture along the entire length of the herringbone-structured fibers.…”

Section: Dnamentioning

confidence: 99%

“…Chemical, biochemical, and electrochemical functionalizations of VACNF material are often preceded by an oxidation step in which amorphous material is removed and oxygen-containing moieties are generated on the surface; most commonly noted are carboxyl surface terminus species. 10,26,28,48,49,51,111,112 …”

Section: Chemical Functionalizationmentioning

confidence: 99%

“…He and Dai reported the use of an acetic acid plasma to provide uCOOH functionality, 118 while and Fletcher et al and McKnight et al, among others, reported the use of an oxygen plasma etch prior to further functionalization steps. 10,26 Paredes et al observed reorganization of the CNF surface after oxidation treatment and concluded that exposure to oxygen plasma leads to a significant and uniform increase in the atomic-scale disorder of the nanofiber surface. 41 Bubert et al conducted a comparative study investigating the formation of functional surface groups on CNFs from low pressure plasma treatment using various gases, flow rates, pressures and powers.…”

Section: Plasma Treatmentmentioning

confidence: 99%

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Surface characterization and functionalization of carbon nanofibers

Klein¹,

Melechko²,

McKnight³

et al. 2008

Journal of Applied Physics

166

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Carbon nanofibers are high-aspect ratio graphitic materials that have been investigated for numerous applications due to their unique physical properties such as high strength, low density, metallic conductivity, tunable morphology, chemical and environmental stabilities, as well as compatibility with organochemical modification. Surface studies are extremely important for nanomaterials because not only is the surface structurally and chemically quite different from the bulk, but its properties tend to dominate at the nanoscale due to the drastically increased surface-to-volume ratio. This review surveys recent developments in surface analysis techniques used to characterize the surface structure and chemistry of carbon nanofibers and related carbon materials. These techniques include scanning probe microscopy, infrared and electron spectroscopies, electron microscopy, ion spectrometry, temperature-programed desorption, and atom probe analysis. In addition, this article evaluates the methods used to modify the surface of carbon nanofibers in order to enhance their functionality to perform across an exceedingly diverse application space.

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“…[26] CNTs functionalized with different chemical groups have been reported worldwide. [27][28][29] The functionalized carbon nanotubes with carboxyl groups that are produced via oxidation are used in different investigations. [30][31][32] These results show that the carboxyl groups found in the surface of CNT are useful for the interaction between CNT and other compounds.…”

Section: Introductionmentioning

confidence: 99%

Effect of Carbon Nanofiber Functionalization on the Dispersion and Physical and Mechanical Properties of Polystyrene Nanocomposites

Morales-Teyssier¹,

Sánchez-Valdés²,

Valle³

2006

Macro Materials & Eng

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Summary: The effect of peroxide functionalization of carbon nanofibers (CNF) on the physical and mechanical properties of polystyrene (PS)–CNF nanocomposites prepared via melt mixing was studied. The CNF functionalization was evidenced by Raman spectroscopy, comparing the ratio of peaks at 1 371 and at 1 590 cm−1 (peaks related to the disordered sp3‐hybridized carbon atom and to the graphitic structure of the sp2‐hybridized carbon atoms, respectively). The variation of the storage (E′) and tensile modulus (E) of the PS–CNF composites as a function of the untreated and peroxide treated CNF concentration were evaluated. Three different peroxide concentrations were used for treating the CNF. It was found that both E′ and E increase with CNF concentration and, in addition, increase further with the peroxide treated CNFs. Nonetheless, it was found that the greater the peroxide concentration used in treating the CNF, the greater the PS degradation via free radical attack on the polymer chain, with the corresponding negative effect on the storage and tensile modulus. Dispersion of the CNF was assessed using scanning and optical microscopy, and the positive effect of the peroxide treatment on the dispersion of the CNF is evidenced.Tensile stress‐strain behavior of PS/CNF nanocomposites.magnified imageTensile stress‐strain behavior of PS/CNF nanocomposites.

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Biochemical functionalization of vertically aligned carbon nanofibres

Cited by 27 publications

References 23 publications

Functionalized carbon nanotubes and nanofibers for biosensing applications

Functionalized carbon nanotubes and nanofibers for biosensing applications

Surface characterization and functionalization of carbon nanofibers

Effect of Carbon Nanofiber Functionalization on the Dispersion and Physical and Mechanical Properties of Polystyrene Nanocomposites

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