Single-Walled Carbon Nanotubes - Carbon Nanotubes

As grown, raw carbon nanotubes have highly hydrophobic surfaces, and are not soluble in aqueous solutions. Surface chemistry or functionalization is required to solubilize CNTs, and to render biocompatibility and low toxicity for biomedical applications. Surface functionalization of carbon nanotubes may be covalent or noncovalent. Chemical reactions forming bonds with nanotube sidewalls are carried out in the covalent functionalization case, while non-covalent functionalization exploits favorable interactions between the hydrophobic domain of an amphiphilic molecule and the CNT surface, affording aqueous nanotubes wrapped by surfactant.

SPECIFICATION:

1 Introduction

SWCNT are surely the carbon nanotubes variant with the most interesting combination of physical properties. They show world records in mechanical, electrical and thermal properties. For most of the time, there was no guarantee for a sufficient availability of this outstanding material. In the meantime, however, increasingly larger quantities of SWCNT have entered the market, which enable the development of attractive applications. Therefore the worldwide fascination in connection with carbon nanotubes as such may finally become reality with SWCNT. Currently, the Fraunhofer IWS Dresden is one of the few institutes worldwide, which can synthesize and offerSWCNT at a kg scale for application developments.

2 Improved Properties

Such cylindrical graphitic polymeric structures have novel or improved properties that make them potentially useful in a wide variety of applications in electronics, optics and other fields of materials science. Carbon nanotubes are endowed with exceptionally high material properties, very close to their theoretical limits, such as electrical and thermal conductivity, strength, stiffness, and toughness. Moreover, MWCNTs are polymers of pure carbon and can be reacted and manipulated using the rich chemistry of carbon. This provides opportunity to modify the structure and to optimise solubility and dispersion, allowing innovative applications in materials, electronics, chemical processing and energy management, to name just a few. In summary, three properties of MWCNTs are specifically interesting for the industry: the electrical conductivity (as conductive as copper), their mechanical strength (Up to 15 to 20 times stronger than steel and 5 times lighter) and their thermal conductivity (same as that of diamond and more than five times that of copper). A combination of these impressive properties enables a whole new variety of useful and beneficial applications.

3  Conclusion

Carbon nanotubes are endowed with exceptionally high material properties, very close to their theoretical limits. A combination of these impressive properties enables a whole new variety of useful and beneficial applications. Depending of the amount of R&D efforts necessary to bring a particular product to the market, it can be differentiated between short, mid and long-term applications. Current or short-term applications are often based on the use of MWCNTs as a superior replacement of electrically conductive carbon blacks. This is especially advantageous in the automotive and electronic industries. New structural composite materials based on CNT reinforced thermoplastics combine low density and strong mechanical properties. Currently almost every sports item on the market can be improved by using CNT. This will open the way to new developments in particular by replacing metals in various 5 Page 5 / 6 mechanical applications where a weight reduction could save energy, like in automotive industry. On the medium to long-term a wide range of industrial sectors may benefit from the use of CNT. Due to the nature of some of these industries, more technical testing and longer certification time will be required before a market entry is possible. Improved mechanical properties of epoxy–carbon fiber composites can be used for wind power generators and in the aircraft industry. From improved textiles to electrical conductive ink for printable circuits, the range of impacted industries is staggering.

Description:

Conceptually, the structure of a SWCNT is a one-atom-thick layer of graphite, called graphene, wrapped into a seamless cylinder with either open or closed ends. As their name implies, MWCNTs consist of multiple concentric layers of graphene that form a tube shape.

By themselves, CNTs can be metallic or semi-conducting, and are uniquely strong. The many applications for CNTs are based on their unique structure, although some can use either MWCNTs or SWCNTs. MWCNTs are used today in conducting polymers; for example, in electrostatic spray operations. Due to their unique features, SWCNT are required for some key electronic applications such as memory, semiconductor components and transparent conducting films for touch screens, displays, solar cells and other devices. These and other applications were highlighted in “Carbon Nanotubes:

Nanoshel Carbon Nanotubes, Graphene and Nanomaterials

Nanoshel sells purest and cheapest Carbon Nanotubes in the world. Selling in Ton quantities to various Industries from Coating and Plastic to Technology companies. Various Catalogue companies are buying CNTs from us in Ton and Kg quantities.

Carbon Nanotubes is produced by Chemical Vapor Deposition (CVD) method by Nanoshel and depending on the diameter one can obtain either single-walled Carbon Nanotubes(SWCNTs) or multi-walled Carbon Nanotubes (MWCNTs). Our current capacity for the production of MWCNTs far exceeds that of other suppliers.

List of relevant Nanomaterial’s for Industry and Researchers

1. Buy 99% pure Carbon Nanotubes (MWCNT), at an amazing price of US$100/Kg.

2. Buy 99% pure Multi walled Carbon Nanotubes in Ton quantities for Industrial use.

3. Buy metaloxide nanopowders for research & industrial use at prices seen never before.

4. Buy Aluminium nano powders for defence research with amazing results tested in defence labs.

5. Buy Quartz Fabric for Aero Space research having 0.2 mm thickness having amazing results.

6. Buy Silicon Wafers for materials research applied to semiconductor technology.

7. Buy Graphene Nano Powder, Dispersion and Pallets for research purpose in Gram quantities.

8. Buy Shape Memory Polymer for advanced polymer applications in Killogram and Gram quantities.

Single-wall Nanotubes (SWNT)

Single-wall nanotubes (SWNT) are tubes of graphite that are normally capped at the ends. They have a single cylindrical wall. The structure of a SWNT can be visualized as a layer of graphite, a single atom thick, called graphene, which is rolled into a seamless cylinder.

Most SWNT typically have a diameter of close to 1 nm. The tube length, however, can be many thousands of times longer.

SWNT are more pliable yet harder to make than MWNT. They can be twisted, flattened, and bent into small circles or around sharp bends without breaking.

SWNT have unique electronic and mechanical properties which can be used in numerous applications, such as field-emission displays, nanocomposite materials, nanosensors, and logic elements. These materials are on the leading-edge of electronic fabrication, and are expected to play a major role in the next generation of miniaturized electronics.

Application:

Many improvements of basic materials properties can be achieved by using carbon nanotubes in polymers and metals as fillers. Especially the SWCNT of the Fraunhofer IWS Dresden are constantly optimized to enable an adjustment of the desired physical and mechanical properties of the final composite product with extremely low additional quantities of SWCNT. For example, transparent and flexible polymer electrodes, anti-static surface coatings, photovoltaics, sensors and actuators technology as well as printed electronic circuits are possible. Current IWS development highlights include polymer-based conductive, transparent electrodes and flexible electrodes for dielectric actuators with high conductivity and robustness.

Advantage:

- very good structural integrity (very

low defect density)

- outstanding mechanical properties,

far exceeding those of commercially

available materials (steel, carbon or

aramid fibers)

- a fraction of the weight of multi-walled

nanotubes

- outstanding electrical conductivity

of metallic SWCNT, exceeding the

conductivity of copper by a factor

of 1000

- semi-conducting SWCNT are ideal

for sensors applications

- SWCNT are entirely »surface«, the

characteristics of the IWS SWCNT

can easily be modified by chemistry

or by formation of defects.

- SWCNT by IWS are highly flexible

macromolecules, they do not exhibit

the high rigidity of microcrystalline

fibers for an asbestos-like behavior.

Packaging & Delivery:

Company Introduction: 

We are privileged to have a support of highly experienced and efficient team of professionals which enable us to manufacture and supply a quality array of Carbon Nanotubes, Metal and Alloy Nanoparticles, Oxides Allied Nanoparticles and Nanoparticles. All these professionals are well aware with all the aspects of chemicals and help us in processing the best quality products. Due to the hard work and dedication of these team members, we have been able to successfully maintaining a strong hold in the industry.

Our team includes the following members:

Chemical experts

Machine operators

Quality controllers

Research associates

Warehousing experts

Packaging experts

Sales and marketing professional

Skilled and semi-skilled labor

About Nanoshel Nanomaterial

Nanoshel LLC is a Wilmington, Delaware based nanotechnology company specializing in the commercialization of wide range of Nanoparticles and innovative materials of 21st century. Nanoshel is revolutionizing nanomaterials where traditional materials fall short.

Since 2005, Nanoshel has been exploring markets, developing innovative technologies, and providing breakthrough solutions using our Nanomaterials expertise. What’s interesting about materials on the Nano Scale – Contrary to popular belief is that size really does matter. That’s because when familiar materials are reduced to Nano proportions, they begin to develop odd properties. For example, plastics can conduct electricity, gold particles can appear red or green and solids can turn into liquids almost spontaneously at room temperature. While not all material is subject to change, the manipulation of such Nano change is a cornerstone of nanotechnology research.

At the Nano scale, substances may behave differently or better compared to the same substances at macro sizes. For instance, Gold can change Colour, Carbon can conduct heat and electricity better Silver has improved antimicrobial properties. Other changes that occur to substances at the Nano scale can include: Becoming super-elastic, Becoming more chemically reactive, Getting physically stronger or weaker, and Being able to cope with massive changes in temperature and pressure. It’s because of these unique properties that nanotechnology could be used in such a huge range of products.

Nanoshel Carbon Nanotubes, Graphene and Nanomaterials

Nanoshel sells purest and cheapest Carbon Nanotubes in the world. Selling in Ton quantities to various Industries from Coating and Plastic to Technology companies. Various Catalogue companies are buying CNTs from us in Ton and Kg quantities.

Carbon Nanotubes is produced by Chemical Vapor Deposition (CVD) method by Nanoshel and depending on the diameter one can obtain either single-walled Carbon Nanotubes(SWCNTs) or multi-walled Carbon Nanotubes (MWCNTs). Our current capacity for the production of MWCNTs far exceeds that of other suppliers.

List of relevant Nanomaterial’s for Industry and Researchers

1. Buy 99% pure Carbon Nanotubes (MWCNT), at an amazing price of US$100/Kg.

2. Buy 99% pure Multi walled Carbon Nanotubes in Ton quantities for Industrial use.

3. Buy metaloxide nanopowders for research & industrial use at prices seen never before.

4. Buy Aluminium nano powders for defence research with amazing results tested in defence labs.

5. Buy Quartz Fabric for Aero Space research having 0.2 mm thickness having amazing results.

6. Buy Silicon Wafers for materials research applied to semiconductor technology.

7. Buy Graphene Nano Powder, Dispersion and Pallets for research purpose in Gram quantities.

8. Buy Shape Memory Polymer for advanced polymer applications in Killogram and Gram quantities.

Our Bio Nano conjugation Services include

1. Antibody and protein biotinylation and fluorescent labeling.

2. Antibody-enzyme conjugates and other protein-protein linkages.

3. Conjugations for peptide immunogens and vaccines.

4. Conjugations with hydrophobic peptides.

5. Pegylation

6. Conjugate vaccines and proprietary chemistry for preparing Bio Nano Conjugates.

7. Custom Conjugated Antibodies: Our Custom services provide personalized solutions designed to supply researchers with the widest choice of tools to support their studies. We are powering Drug Discovery through Conjugation Chemistry.

Our Business Areas

1. MetalNanopowders

2. Compound Nanopowders

3. Metal Oxide Nanopowders

4. Nano Particle Dispersions

5. Single Walled Carbon Nano Tubes

6. Multi Walled Carbon Nano Tubes

7. Alloy Nano Powders, Clay Nanopowders, Shape Memory Polymers, Silicon Wafers, Sputtering Targets, Copper Foam etc.

Nanoshel Consulting – Biotechnology and Nanotechnology Product Development, Strategic Consultancy and Project Management.

Biotechnology Nanotechnology research, consultancy and product development. We specialize in delivering innovative solutions to industry across the life sciences and technology sectors. Nanoshel brings together teams of leading researchers from our partner institutions and employs a unique business model to deliver commercially driven research, consultancy and problem solving for its clients. This effectively removes the project delivery risk, ensuring that our academic partners deliver to time, budget and quality

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