Composites having semiconductor structures embedded in a matrix are described. In an example, a composite includes a matrix material. A plurality of semiconductor structures is embedded in the matrix material. Each semiconductor structure includes an anisotropic nanocrystalline core composed of a first semiconductor material. Each semiconductor structure also includes a nanocrystalline shell composed of a second, different, semiconductor material at least partially surrounding the anisotropic nanocrystalline core. An insulator layer encapsulates each nanocrystalline shell and anisotropic nanocrystalline core pairing.

Discrete, individualized carbon nanotubes having targeted, or selective, oxidation levels and/or content on the interior and exterior of the tube walls are claimed. Such carbon nanotubes can have little to no inner tube surface oxidation, or differing amounts and/or types of oxidation between the tubes' inner and outer surfaces. These new discrete carbon nanotubes are useful in plasticizers, which can then be used as an additive in compounding and formulation of elastomeric, thermoplastic and thermoset composite for improvement of mechanical, electrical and thermal properties.

Semiconductor structures having a nanocrystalline core and corresponding nanocrystalline shell and insulator coating, wherein the semiconductor structure includes an anisotropic nanocrystalline core composed of a first semiconductor material, and an anisotropic nanocrystalline shell composed of a second, different, semiconductor material surrounding the anisotropic nanocrystalline core. The anisotropic nanocrystalline core and the anisotropic nanocrystalline shell form a quantum dot. An insulator layer encapsulates the nanocrystalline shell and anisotropic nanocrystalline core.

Semiconductor structures having a nanocrystalline core and corresponding nanocrystalline shell and insulator coating, wherein the semiconductor structure includes an anisotropic nanocrystalline core composed of a first semiconductor material, and an anisotropic nanocrystalline shell composed of a second, different, semiconductor material surrounding the anisotropic nanocrystalline core. The anisotropic nanocrystalline core and the anisotropic nanocrystalline shell form a quantum dot. An insulator layer encapsulates the nanocrystalline shell and anisotropic nanocrystalline core.

Discrete, individualized carbon nanotubes having targeted, or selective, oxidation levels and/or content on the interior and exterior of the tube walls are claimed. Such carbon nanotubes can have little to no inner tube surface oxidation, or differing amounts and/or types of oxidation between the tubes' inner and outer surfaces. These new discrete carbon nanotubes are useful in plasticizers, which can then be used as an additive in compounding and formulation of elastomeric, thermoplastic and thermoset composite for improvement of mechanical, electrical and thermal properties.

A method for making sulfur charged carbon nanotubes, the structure of the sulfur charged carbon nanotubes, and a cathode including the sulfur charged carbon nanotubes are described herein. The method comprises dissolving sublimed sulfur in a solvent to create a solution. The method further comprises adding carbon nanotubes to the solution. The method further comprises adding a polar protic solvent to the solution. The method further comprises removing the solvent from the solution.

Discrete, individualized carbon nanotubes having targeted, or selective, oxidation levels and/or content on the interior and exterior of the tube walls are claimed. Such carbon nanotubes can have little to no inner tube surface oxidation, or differing amounts and/or types of oxidation between the tubes' inner and outer surfaces. These new discrete carbon nanotubes are useful in plasticizers, which can then be used as an additive in compounding and formulation of elastomeric, thermoplastic and thermoset composite for improvement of mechanical, electrical and thermal properties.

The present invention deals with employing Heteroatoms namely Nitrogen, Sulphur intrinsic embedded carbon nanotubes (H-CNT) as multifunctional additive for preparing lead acid battery electrodes to substitute the expander chemicals namely, Vanisperse, Dinel Fibre, Barium sulphate and carbon black. Further the invention provides H-CNT in-situ produced from Crude oil or its products.

Stem cell, bone and nerve scaffolding comprising discrete carbon nanotubes is disclosed. The discrete carbon nanotubes may be have targeted, or selective oxidation levels and/or content on the interior and exterior of the tube walls. The described scaffolding may be used to guide, target and protect stem cells upon injection into the body.

Discrete, individualized carbon nanotubes having targeted, or selective, oxidation levels and/or content on the interior and exterior of the tube walls are claimed. Such carbon nanotubes can have little to no inner tube surface oxidation, or differing amounts and/or types of oxidation between the tubes' inner and outer surfaces. These new discrete carbon nanotubes are useful in plasticizers, which can then be used as an additive in compounding and formulation of elastomeric, thermoplastic and thermoset composite for improvement of mechanical, electrical and thermal properties.