Based on the theories of thermal elasticity mechanics and nonlocal elasticity, an elastic Bernoulli–Euler beam model is developed for thermal-mechanical vibration and buckling instability of a single-walled carbon nanotube (SWCNT) conveying fluid and resting on an elastic medium. The finite element method is adopted to obtain the numerical solutions to the model. The effects of temperature chan...

The goal of this research was to develop a chemical gas sensing device based on single-walled carbon nanotube (SWCNT) networks. The SWCNT networks are synthesized on Al(2)O(3)-deposted SiO(2)/Si substrates with 10 nm-thick Fe as the catalyst precursor layer using microwave plasma chemical vapor deposition (MPCVD). The development of interconnected SWCNT networks can be exploited to recognize th...

Carbon nanomaterials are widely produced and used in industry, medicine and scientific research. To examine the impact of exposure to nanoparticles on human health, the human airway epithelial cell line, Calu-3, was used to evaluate changes in the cellular proteome that could account for alterations in cellular function of airway epithelia after 24 hexposure to 10 μg/mL and 100 ng/mL of two com...

Carbon nanotubes (CNT) represent a fascinating new class of materials. They consist of sheets of graphene rolled into a tube-like structure and closed by caps at the end. The CNTs come in different forms and sizes, such as single wall tubes (SWCNT), multiwall tubes (MWCNT), or combinations of these to "ropes” and fibers. These carbon nanotube systems exhibit many surprising and interesting prop...

Chemical Functionalization is a technique used to increase the dispersion and solubility of single-walled carbon nanotube (SWCNT). Functionalization of a (10, 0) zigzag nanotube segment containing 80 C atoms was investigated with the aide of spinunrestricted density functional theory (DFT). The (10, 0) was funtionalized with three organic acid groups: (a) carboxylic acid, (b) aromatic dicarboxy...

High performance single-walled carbon nanotube field effect transistors SWCNT-FETs fabricated with thin atomic layer deposited ALD Al2O3 as gate dielectrics and passivation layer are demonstrated. A 1.5 m gate-length SWCNT-FETs with 15 nm thick Al2O3 insulator shows a gate leakage current below 10−11 A at −2.5 V Vg +7 V, a subthreshold swing of S 105 mV/decade, and a maximum on current of −12 A...

Functionalized single-walled carbon nanotube (SWCNT)-based chemiresistors are reported for a highly robust and sensitive gas sensor to selectively detect cyclohexanone, a target analyte for explosive detection. The trifunctional selector has three important properties: it noncovalently functionalizes SWCNTs with cofacial π-π interactions, it binds to cyclohexanone via hydrogen bond (mechanistic...

It has been found that multiwalled carbon nanotubes (CS-CNT) can be produced in mass level, simply by pyrolysing mustard oil which was then derivatized with carboxylic acid (CS-CNT (acid)) and ammonia (CS-CNT (base)). A low cost electrode was fabricated on Teflon substrate with three silver wires which was coated with different types of carbon nanotube. A comparative study of electrochemical be...

Magnetic force microscope ( MFM ) is a powerful technique for mapping the magnetic force gradient above the sample surface. Herein, single-wall carbon nanotubes (SWCNT) were used to fabricate MFM probe by dielectrophoresis method which is a reproducible and cost-effective technique. The effect of induced voltage on the deposition manner of carbon nanotubes (CNT) on the atomic force microscope (...

In this paper, we have explored the feasibility of a carbon nanotube (CNT) ring oscillator (RO) for detecting ionized radiation. The effect of ion irradiation on the oscillation frequency of CNT-based RO is considered using the displacement damage dose (DDD) methodology. The analytical model of the irradiated resistance of metallic single-walled CNT (SWCNT) has been developed and verified by ex...