Skip to main content

Graphene Sheets and Their Applications

As we all may accept that nanotechnology is a key technology for 21st century. Nanotechnology provides unique products and applications of innovative techniques in medicine, pharmacy and computer technology.
One of the most important materials related to nanotechnology is obviously graphene. The demand for carbon nanostructures particularly carbon nanotubes and graphene, is increasing rapidly in electrical, mechanical, optical and other unique properties. Nowadays, great efforts have been made toward the preparation of Graphene Sheet  (10 cm x 10 cm).
Carbon has a unique feature of forming a chemically stable two-dimensional one atom thick sheet called as graphene. Graphene is the most thinnest and the strongest material ever to be measured. Also graphene has very high thermal conductivity and stiffness and is impermeable to gases.
Researchers have been looking for possible applications of graphene in high-speed and radio frequency logic devices, thermally and electrically conductive reinforced composites, sensors, transparent electrodes for display and solar cells and biomedicine.
Now let's look at the applications of graphene sheets in biomedicine. Recently graphene has showed promise similar to carbon nanotubes in various biomedical applications such as drug delivery and cancer therapy. Graphene can provide a larger specific surface area than other commonly used carbon nanomaterials and forms strong pi bonds with the drug molecules which can therefore act as a good candidate for drug loading.
Graphene can also be used in EO devices and lasers. Graphene can absorb wavelengths from the visible to the mid-IR with wavelength modulation enabled through electrostatic gating.
The other property of graphene is being carbocatalyst. The use of heterogeneous carbon materials for the transformation or synthesis of organic or inorganic substrates are often termed as carbocatalysts. Recently, the use of metal free catalysts based on carbonaceous materials attracting a great deal of interest. Graphene based materials such as graphene oxide are considered as a new class of carbocatalysts and opened a series of novel application possibilities in chemical synthesis. 
Labels:

Comments

Post a Comment

Popular posts from this blog

New Way of Deaf-Mute Communication with 3D Graphene

Image retrieved from: http://blogs.rsc.org/cc/2016/09/01/3d-graphene-adds-dimension-to-deaf%E2%80%93mute-communication/ Chinese scientists have developed wearable electronic device with conductive 3D graphene structure to translate sign language into written text. This technology can be applied by injecting graphene ink from a syringe under printed electronic field. For medical field, such as adhesive patches which determine heart, brain signal and neural activity, wearable and bio-integrated medical devices are very important. Due to noticeable properties of cast graphene, for example a 2D honeycomb lattice, excellent mechanical and electrical behaviors, Graphene has an important material in warble technology. However, it is difficult to preserve advantages of Graphene material in a 3D material which has an information about forces from every angle. Yanlin Song  and co-workers at the University of the Chinese Academy of Sciences, Beijing, and Shenyang Jianzhu University...
Post a Comment
Read more

Titanium Carbide Powders and Applications

Titanium carbide which has the chemical formula of TiC attracted great interest for many structural applications due to its extremely high melting temperature, high hardness, high chemical resistance and good electrical conductivity. Therefore titanium carbide can be used in cutting tools, grinding wheels, wear-resistant coatings, high temperature heat exchangers, magnetic recording heads, turbine engine seals, and bullet-proof vests, etc. In addition, a promising field of application comprises plasma and flame spraying processes in air, where titanium carbide-based powders show high-phase stability. TiC(Titanium Carbide Powder) (325 mesh, 99,9+%)  can also be used in biomedical implant devices. Materials used for biomedical implant devices must satisfy a variety of property demands, which are often mutually exclusive. Further, different parts of a device demand different material properties. These factors often make it difficult to manufacture a medical device using a...
Post a Comment
Read more

Carbon Nanotubes Doped with Graphene Nanopowder and Applications

Carbon nanotubes and graphene are different forms of carbon atom based materials. They have different properties and can be used in various applications. But what happens if we use them as a hybrid structure? The excellent mechanical, physical, and chemical properties of low-dimensional carbon materials like graphene and carbon nanotube have enabled them as promising building blocks for three-dimensional nanoarchitectures. In this regard, extensive interests have been attracted to synthesize graphene and carbon nanotube hybrid structures. Earlier works suggested that  Carbon Nanotubes Doped with Graphene Nanopowder (52 wt% Graphene )  is a promising solution for quick energy dissipation, which could enhance interface thermal conductivity of the ‘building blocks’ for future nanoscale mechanical and electrical devices. In the electricity perspective, it is found that ‘CNT pillared-graphene’ system would extend the excellent electrical conductivity of graphene and nanotube to ...
Post a Comment
Read more