A New Material with Atomized Cobalt-Multiwalled Carbon Nanotubes: A Possible Substitute for Human Implants

Abstract

A new material composed of atomized cobalt-multiwalled carbon nanotube has been produced and characterized by thermogravimetric analysis and polarization studies to estimate its lifetime. This does not show cobalt thermal oxidation suggesting that it is confined inside the carbon nanotube matrix. The density functional calculations in the literature predict a strong interaction leading to higher hybridization of cobalt atom and carbon nanotubes. A detailed investigation of the corrosion measurements shows that the new material of thickness 0.8 mm, 1 mm, 1.5 mm and 2 mm would last for 31, 39, 60 and 79 years and it would substitute with cobalt-chromium alloy that is used as a load bearing implant for patients with knee pain or partial denture implant.

Advances in bone repair with nanobiomaterials: mini-review

“…Both single-wall and multiwall carbon nanotubes were found to be able to interact with the biological tissues and to be useful for bone repair (Tutak et al 2009;Bhattacharya et al 2011;Joshi et al 2010;Mendes et al 2010;Niu et al 2010;Sahithi et al 2010;Tutak et al 2010). This has been well presented in the published literature and will not be further discussed here (see above references).…”

Safe Clinical Use of Carbon Nanotubes as Innovative Biomaterials

“…In the medical field, extensive research activities are underway to develop new CNTs biomaterials for use in the treatment and diagnosis of disease. For example, application of CNTs to cancer treatment and diagnosis, such as in drug delivery systems (DDSs) for treatment of cancer, hyperthermia, and in vivo imaging, has been investigated. − In a study that aimed at applying CNTs to regenerative medicine, CNTs were found to work excellently as scaffold materials for nerve and bone tissue regeneration. − Furthermore, R&D activities are underway to improve the mechanical strength and durability of implants by combining CNTs with existing biomaterials. − Besides, numerous ideas have been put forth about how CNTs can be used in the treatment of a variety of diseases.…”

Carbon Nanotubes: Nanotoxicity Testing and Bioapplications

“…Carbon nanotubes (CNTs) and other carbon nanomaterials are of interest for biological and medical applications because of their high chemical durability, mechanical strength and electrical properties. Several studies on the application of carbon nanomaterials have been reported such as CNT substrates of cell culture [11][12][13][14][15][16][17][18][19][20], CNT-based drug delivery systems [21,22], and medical CNT implant materials [23,24]. A recent study reported the synergy on the unique properties of carbon nanotubes (CNT) with details of tissue compatibility and osteogenesis of human mesenchymal stem cells (hMSC) [25].…”