Aggregated Diamond Nanorods, Or Adnrs (also Called A Hyperdiamond), Are A Nanocrystalline Form Of Diamond

Aggregated diamond nanorods, or ADNRs (also called a hyperdiamond), are a nanocrystalline form of diamond believed to be the hardest and least compressible known material, as measured by their isothermal bulk modulus: aggregated diamond nanorods have a modulus of 491 gigapascals (GPa), while a conventional diamond has a modulus of 442 GPa.[1] ADNRs are also 0.3% denser than regular diamond. The ADNR material is also harder than type IIa diamond and ultrahard fullerite. A (111) surface (normal to the largest diagonal of a cube) of pure diamond has a hardness value of 167 GPa (±6) when scratched with a nanodiamond tip, while the nanodiamond sample itself has a value of 310 GPa when tested with a nanodiamond tip.[2] However, the test only works properly with a tip made of harder material than the sample being tested. This means that the true value for nanodiamond is likely somewhat lower than 310 GPa. ADNRs are produced by compressing fullerite powder — a solid form of allotropic carbon fullerene — with two somewhat similar methods. One used a diamond anvil cell and applied pressure

• These thinner copper nanorods fuse together, or anneal, at about 300 degrees Celsius. This relatively low annealing temperature could make the nanorods ideal for use in heatsensitive nanoelectronics, particularly for “gluing” together the stacked components of 3D computer chips. • “When fabricating and assembling 3-D chips, and when bonding the silicon wafers together, you want as low a temperature as possible,” said Pei-I Wang, research associate at Rensselaer’s Center for Integrated Electronics. “Slimmer nanorods, by virtue of their smaller diameters, require less heat to anneal. These

The fabrication of TiO2 nanorods from TiO2

• the fabrication of TiO2 nanorods from TiO2 nanoparticles by using the organic protection assisted template method. After the deposition of perylene nanotubes in the pores of the porous alumina membranes, implantation of TiO2 nanoparticles resulted in the formation of TiO2/perylene composite nanorods. The diameters and lengths of the nanorods correspond well to the diameter of the pores of the membrane and the thickness of the template used. After removing the perylene protection layer by calcination, the TiO2 nanorods obtained have an anatase structure, the same as that of the original TiO2 nanoparticles. It is supposed that the organic layers protected the TiO2 rods from damage during removal of the template by alkaline etching. Such an organic layer protection method presents a new

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NanopartzTM patent pending gold nanorods combine the revolutionary optical, photothermal, and mechanical properties inherent in the gold nanorod structure with a well characterized highly customizable surface for directing the bioactivity of gold nanorods or for conjugating them to a wide range of molecules of interest.  NanopartzTM  gold nanorods represent a truly enabling "nanotechnology" - the many benefits they bring to optical, photothermal, and material methodology include: These gold nanorods have a history of clinical success and have minimal inherent cytotoxicity, making them promising for in vitro and in vivo biomedical applications. Coated gold nanorods have long circulation times of several hours in-vivo. Absorption and scattering cross sections that are per micron, up to two orders of magnitude greater than nanoshells Intense absorption and scattering bands in the near infrared, orders of magnitude greater than spherical gold nanoparticles or QDs at advantageous wavelengths not available to either Two photon fluorescence equal to QDs High photothermal conversion rate Optical properties that benefit the use as subcomponents in polarizers, filters, and negative refractive index materials

• The nanorods' homing abilities also make them a promising tool for diagnosing tumors. After the particles are injected, they can be imaged using a technique known as Raman scattering. Any tissue that lights up, other than the liver or spleen, could harbor an invasive tumor. The nanorods could also be used to kill tumor cells left behind after