Magnetic carbon nanotubes: preparation, physical properties, and applications in biomedicine

Abstract

Magnetic carbon nanotubes (MCNTs) have been widely studied for their potential applications in medicine, diagnosis, cell biology, analytical chemistry, and environmental technology. Introduction of MCNTs paved the way for the emergence of new approaches in nanobiotechnology and biomedicine as a result of their multifarious properties embedded within either the carbon nanotubes (CNTs) or magnetic parts. Numerous preparation techniques exists for functionalizing CNTs with magnetic nanoparticles, and these versatile strategies lay the ground for the generation of novel and versatile systems which are applicable to many industries and biological areas. Here, we review and discuss the recent papers dealing with MCNTs and their application in biomedical and industrial fields.

Cancer treatment by magneto-mechanical effect of particles, a review

“…Iron oxides such as magnetite (Fe 3 O 4 ) or maghemite (g-Fe 2 O 3 ) are therefore very good candidates being usually chosen for their biocompatibility, although in some respects they may exhibit non-negligible cytotoxicity. 24,53,54 In particular, naked iron oxide nanoparticles are known to induce reactive oxygen species (ROS), considered as one of the main mechanisms of nanotoxicity, as investigated in Ling and Hyeon, 2013, 53 and Goiriena-Goikoetxea et al, 2020. 24 However, this toxicity of iron oxide nanoparticles is greatly reduced when they are enveloped in a biocompatible layer, based either on inorganic shells, such as for example gold, silica or tantalum coatings, or on a large variety of biocompatible organic shells, depending on the nanoparticle core type and the intended applications.…”

Single wall and multiwall carbon nanotubes induce different toxicological responses in rat alveolar macrophages

“…For example, carbon nanotubes (CNTs) offer a huge potential in nano‐electronics as semiconductors (Lefebvre et al, ). Their high thermal conductivity (Monea et al, ), resistance and intrinsic mechanical properties (Dresselhaus, Dresselhaus, Charlier, & Hernández, ) such as high tensile strength and flexibility, make them ideal for numerous applications in the biomedical domain, for instance drug delivery (Assali, Zaid, Abdallah, Almasri, & Khayyat, ; Khan et al, ; Samadishadlou et al, ). CNTs have been widely explored in structural polymer nanocomposites, conductive adhesives, fire retardant plastics, Li‐ion battery electrodes and metal matrix composites (Madian et al, ; Messina et al, ).…”

“…instance drug delivery (Assali, Zaid, Abdallah, Almasri, & Khayyat, 2017;Khan et al, 2017;Samadishadlou et al, 2017). CNTs have been widely explored in structural polymer nanocomposites, conductive adhesives, fire retardant plastics, Li-ion battery electrodes and metal matrix composites (Madian et al, 2017;Messina et al, 2016).…”

Use of Plasma-Synthesized Nano-Catalysts for CO Hydrogenation in Low-Temperature Fischer–Tropsch Synthesis: Effect of Catalyst Pre-Treatment

“…Due to the exceptional chemical, mechanical, electrical, and thermal properties of carbon, its derivative nanostructures have been utilized in diverse fields [ 2 ], including the development of semiconductors and application in electronics [ 3 ], production of nano-composite materials [ 4 ], and chemically active sensors [ 5 ]. Magnetic carbon nanotubes (CNTs) can be found in biomedical applications [ 6 ], carbon nanotropes for drug delivery [ 7 ], CNTs in field emission devices [ 8 ], super-capacitors and batteries for energy storage [ 9 ], and high-performance energy conversion in solar cells and fuel cells [ 10 ]. In all these emerging fields, the properties of novel nanometric materials exhibit substantial variation from the bulk solid state due to their diminished size, for example, in data storage devices and sensors, finely divided magnetic nanoparticles are most desirable [ 11 ].…”