Weigh out the desired amount of nanotubes.For dispersing in aqueous solutions we recommend the use of sodium dodecylbenzene sulfonate if an ionic surfactant is suitable if a nonionic surfactant is needed we recommend surfactants with high molecular weights. Like single walled carbon nanotubes, MWCNT's are insoluble. This can provide a wide variety of targeted therapies such as drug delivery, localised heating for triggering cell death, or even miniature biosensors for in-situ measurements. This is due to their high biocompatibility of carbon nanotubes and the ability to attach specific proteins to functional groups. Aside from being used as additives, functionalised MWCNTs are being utilised in a variety of medical and biotechnological applications. either to: i) improve the mechanical properties of a material, or ii) to improve the electrical properties of a material. Applications of MWCNTs have been mainly focused around their use in composites where they can be used as an additive. This makes their production costs significantly lower, and is a reason for their adoption in multiple areas of scientific research. MWCNTs can be produced in high quantities and are easier to purify (in comparison to single walled and double-walled nanotubes). improved dispersability, or the ability to attach binding sites for use in biomedical applications). The outer walls of MWCNTs can be modified with functional groups such as hydroxides, carboxylic acids, or amides to produce additional functionality (e.g. However, due to the increased number of walls, there is a higher likelihood of defects being present compared to single-walled nanotubes - resulting in reduced performances. Just like single-walled nanotubes, they exhibit exceptional electrical, thermal, and mechanical properties. At the same time the diameter of both the internal nanotube and the external most nanotube can vary - from 2nm for the innermost tube, to over 50nm for the outer wall. The number of nanotubes that are within a MWCNT can vary - from as little as 3, to over 20. MWCNTs consist of multiple carbon nanotubes nested within one another. Additionally, we sell carbolic acid (COOH) and hydroxyl (-OH) functionalised nanotubes in a range of different diameters. These disadvantages are offset by the increased dispersability of MWCNTs, and the reduced cost in synthesis and purification of these materials.Īt Ossila we sell a range of MWCNT's with different purities and and diameters. The reason for this is the higher probability of defects occurring. Although MWCNTs are still classed as a 1-dimenional form of carbon, the unique properties that are seen within single-walled and double-walled carbon nanotubes are not as prominent. Multi-walled carbon nanotubes (MWCNTs) are a special form of carbon nanotubes in which multiple single-walled carbon nanotubes are nested inside one another.
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