摘要:
Various embodiments of the present disclosure pertain to nanocomposites for detecting hydrocarbons in a geological structure. In some embodiments, the nanocomposites include: a core particle; a polymer associated with the core particle; a sulfur-based moiety associated with the polymer; and a releasable probe molecule associated with the core particle, where the releasable probe molecule is releasable from the core particle upon exposure to hydrocarbons. Additional embodiments of the present disclosure pertain to methods of detecting hydrocarbons in a geological structure by utilizing the nanocomposites of the present disclosure.
摘要:
In some embodiments, the present disclosure pertains to methods of capturing a gas from an environment by associating the environment with a porous carbon material that includes, without limitation, protein-derived porous carbon materials, carbohydrate-derived porous carbon materials, cotton-derived porous carbon materials, fat-derived porous carbon materials, waste-derived porous carbon materials, asphalt-derived porous carbon materials, coal-derived porous carbon materials, coke-derived porous carbon materials, asphaltene-derived porous carbon materials, oil product-derived porous carbon materials, bitumen-derived porous carbon materials, tar-derived porous carbon materials, pitch-derived porous carbon materials, anthracite-derived porous carbon materials, melamine-derived porous carbon materials, and combinations thereof. In some embodiments, the associating results in sorption of gas components (e.g., CO2, H2S, and combinations thereof) to the porous carbon material. Additional embodiments of the present disclosure pertain to the porous carbon materials and methods of making the same.
摘要:
Various embodiments of the present disclosure pertain to methods of making magnetic carbon nanoribbons. Such methods generally include: (1) forming carbon nanoribbons by splitting carbon nanomaterials; and (2) associating graphene nanoribbons with magnetic materials, precursors of magnetic materials, or combinations thereof. Further embodiments of the present disclosure also include a step of reducing the precursors of magnetic materials to magnetic materials. In various embodiments, the associating occurs before, during or after the splitting of the carbon nanomaterials. In some embodiments, the methods of the present disclosure further comprise a step of (3) functionalizing the carbon nanoribbons with functionalizing agents. In more specific embodiments, the functionalizing occurs in situ during the splitting of carbon nanomaterials. In further embodiments, the carbon nanoribbons are edge-functionalized. Additional embodiments of the present disclosure pertain to magnetic carbon nanoribbon compositions that were formed in accordance with the methods of the present disclosure.
摘要:
The present invention provides methods of selectively removing one or more graphene layers from a graphene material by: (1) applying a metal to a surface of the graphene material; and (2) applying a hydrogen containing solution to the surface of the graphene material that is associated with the metal. The hydrogen containing solution dissolves the metal along with one or more layers of graphene associated with the metal, thereby removing the layer(s) of graphene from the graphene material. In some embodiments, the hydrogen containing solution is an acidic solution, such as hydrochloric acid. In some embodiments, the metal is zinc. In some embodiments, the methods of the present invention are utilized to selectively remove one or more layers of graphene from one or more targeted sites on the surface of a graphene material.
摘要:
In various embodiments, the present disclosure describes processes for preparing functionalized graphene nanoribbons from carbon nanotubes. In general, the processes include exposing a plurality of carbon nanotubes to an alkali metal source in the absence of a solvent and thereafter adding an electrophile to form functionalized graphene nanoribbons. Exposing the carbon nanotubes to an alkali metal source in the absence of a solvent, generally while being heated, results in opening of the carbon nanotubes substantially parallel to their longitudinal axis, which may occur in a spiralwise manner in an embodiment. The graphene nanoribbons of the present disclosure are functionalized on at least their edges and are substantially defect free. As a result, the functionalized graphene nanoribbons described herein display a very high electrical conductivity that is comparable to that of mechanically exfoliated graphene.
摘要:
The present invention provides methods of preparing functionalized graphene nanoribbons. Such methods include: (1) exposing a plurality of carbon nanotubes (CNTs) to an alkali metal source in the presence of an aprotic solvent to open them; and (2) exposing the opened CNTs to an electrophile to form functionalized graphene nanoribbons (GNRs). The methods may also include a step of exposing the opened CNTs to a protic solvent to quench any reactive species on them. Additional methods include preparing unfunctionalized GNRs by: (1) exposing a plurality of CNTs to an alkali metal source in the presence of an aprotic solvent to open them; and (2) exposing the opened CNTs to a protic solvent to form unfunctionalized GNRs.
摘要:
The present invention pertains to therapeutic compositions that comprise: (1) a nanovector, (2) an active agent; and (3) a targeting agent, wherein the active agent and the targeting agent are non-covalently associated with the nanovector. The present invention also pertains to methods of treating various conditions in a subject by utilizing the above-described therapeutic compositions. Methods of making the therapeutic compositions are also a subject matter the present invention.
摘要:
In some embodiments, the present disclosure pertains to methods of preparing graphene nanoribbons from a graphene film associated with a meniscus, where the method comprises patterning the graphene film while the meniscus acts as a mask above a region of the graphene film, and where the patterning results in formation of graphene nanoribbons from the meniscus-masked region of the graphene film. Additional embodiments of the present disclosure pertain to methods of preparing wires from a film associated with a meniscus, where the method comprises patterning the film while the meniscus acts as a mask above a region of the film, and where the patterning results in formation of a wire from the meniscus-masked region of the film. Additional embodiments of the present disclosure pertain to chemical methods of preparing wires from water-reactive materials.
摘要:
Compositions comprising a plurality of functionalized carbon nanotubes and at least one type of payload molecule are provided herein. The compositions are soluble in water and PBS in some embodiments. In certain embodiments, the payload molecules are insoluble in water. Methods are described for making the compositions and administering the compositions. An extended release formulation for paclitaxel utilizing functionalized carbon nanotubes is also described.
摘要:
In some embodiments, the present disclosure pertains to methods of controllably forming Bernal-stacked graphene layers. In some embodiments, the methods comprise: (1) cleaning a surface of a catalyst; (2) annealing the surface of the catalyst; (3) applying a carbon source onto the cleaned and annealed surface of the catalyst in a reaction chamber; and (4) growing the Bernal-stacked graphene layers on the surface of the catalyst in the reaction chamber, where the number of formed Bernal-stacked graphene layers is controllable as a function of one or more growth parameters. Further embodiments of the present disclosure also include steps of: (5) terminating the growing step; and (6) transferring the formed Bernal-stacked graphene layers from the surface of the catalyst onto a substrate. Further embodiments of the present disclosure pertain to graphene films formed by the methods of the present disclosure.