Electrochemical sensors based on carbon nanotubes and their use in biomedical research

Electrochemical sensors based on carbon nanotubes are widely used in biomedical studies. According to design the sensors can be divided into three groups: (i) sensors based on a carbon nanotube array; (ii) sensors manufactured by means of composites containing carbon nanotubes; (iii) sensors, which are electrodes with working surface containing carbon nanotubes. The development directions of sensors of the first and the second group, and also sensors of the third group which are manufactured by abrasive immobilization of carbon nanotubes on an electrode surface and by solvent dispersion and casting immobilization of carbon nanotubes on an electrode surface by means of N,N-dimethylformamide, surfactants, and Nafion are analyzed. The general information on manufacturing techniques of these sensors is given. The opportunities of these sensors for biomedical researches are demonstrated.

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Electrochemical sensors based on carbon nanotubes and their use in biomedical research.Part 2: sensors manufactured by dispersion of carbon nanotubes by means of polyethyleneimine, organic dyes, cyclodextrins, chitosan, proteins, room-temperature ionic liquids, gels, and thiols. Sensors manufactured by dispersion of carbon nanotubes by electropolymerization process. sensors manufactured by dispersion of carbon nanotubes by layer-by-layer deposition

Biomeditsinskaya Khimiya ◽

10.18097/pbmc20125802144 ◽

2012 ◽

Vol 58 (2) ◽

pp. 144-159 ◽

Cited By ~ 1

Author(s):

V.A. Buzanovskii

Keyword(s):

Carbon Nanotubes ◽

Ionic Liquids ◽

Room Temperature ◽

Electrochemical Sensors ◽

Organic Dyes ◽

General Information ◽

Room Temperature Ionic Liquids ◽

Layer By Layer ◽

Layer Deposition ◽

Manufacturing Techniques

Electrochemical sensors based on carbon nanotubes are widely distributed in biomedical researches. One group of these sensors contains the sensors manufactured by dispersion of carbon nanotubes on an electrode surface by means of polyethyleneimine, organic dyes, cyclodextrins, chitosan, proteins, room-temperature ionic liquids, gels, thiols, by electropolymerization process, and by layer-by-layer deposition. The development directions of such sensors are analyzed. The general information on manufacturing techniques of these sensors is submitted. The opportunities of these sensors for carrying out biomedical researches are demonstrated.

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The Internal Buckling Behavior Induced by Growth Self-restriction in Vertical Multi-walled Carbon Nanotube Arrays

MRS Advances ◽

10.1557/adv.2018.429 ◽

2018 ◽

Vol 3 (45-46) ◽

pp. 2815-2823 ◽

Cited By ~ 1

Author(s):

Quan Zhang ◽

Guo-an Cheng ◽

Rui-ting Zheng

Keyword(s):

Carbon Nanotubes ◽

Carbon Nanotube ◽

Van Der Waals ◽

Nanotube Arrays ◽

Nanotube Array ◽

Static Compression ◽

Carbon Nanotube Array ◽

Carbon Nanotube Arrays ◽

Compression Model ◽

Quasi Static Compression

ABSTRACTThe internal buckling is a common phenomenon in the as-grown carbon nanotube arrays. It makes the physical properties of carbon nanotube array in experiment lower than that in theory. In this work, we analyzed the formation and evolution mechanism of the internal buckling based on quasi-static compression model, which is different from collective effect of the van der Waals interactions. The self-restriction effect and the different growth rate of carbon nanotubes verify the possibility of the quasi-static compression model to explain the morphology evolution of vertical carbon nanotube arrays, especially the phenomenon of the quasi-straight and bent carbon nanotubes coexisted in the array. We generalized the Euler beam to wave-like beam and explained the mechanism of high-mode buckling combined with the van der Waals interaction. The calculated result about the link between compressive stress and strain confirms with the stage of collective buckling in the quasi-static compression test of carbon nanotube array. Preparation of well-organized carbon nanotube arrays was strong evidence verified the effect of self-restriction in experiment.

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