The present disclosure provides scalable nanotube fabrics and methods for controlling or otherwise adjusting the nanotube length distribution of a nanotube application solution in order to realize scalable nanotube fabrics. In one aspect of the present disclosure, one or more filtering operations are used to remove relatively long nanotube elements from a nanotube solution until nanotube length distribution of the nanotube solution conforms to a preselected or desired nanotube length distribution profile. In another aspect of the present disclosure, a sono-chemical cutting process is used to break up relatively long nanotube elements within a nanotube application solution into relatively short nanotube elements to realize a pre-selected or desired nanotube length distribution profile.

Disclosed is a method of producing a secondary sheet. The method comprises shaping a composition containing a resin and a particulate carbon material with a content of the particulate carbon material being 50% by mass or less into a sheet by pressure application to provide a primary sheet having a tensile strength of 1.5 MPa or less; obtaining a laminate comprising two or more layers formed either by stacking a plurality of the primary sheets on top of each other or by folding or rolling the primary sheet; and slicing the laminate at an angle of 45 or less relative to the stacking direction to obtain a secondary sheet.

Disclosed is a method of producing a secondary sheet. The method comprises shaping a composition containing a resin and a particulate carbon material with a content of the particulate carbon material being 50% by mass or less into a sheet by pressure application to provide a primary sheet having a tensile strength of 1.5 MPa or less; obtaining a laminate comprising two or more layers formed either by stacking a plurality of the primary sheets on top of each other or by folding or rolling the primary sheet; and slicing the laminate at an angle of 45 or less relative to the stacking direction to obtain a secondary sheet.

The present invention provides soluble single wall nanotube (SWNT) constructs functionalized with a plurality of a targeting moiety and a plurality of one or more payload molecules attached thereto. The targeting moiety and the payload molecules may be attached to the soluble SWNT via a DNA or other oligomer platform attached to the SWNT. These soluble SWNT constructs may comprise a radionuclide or contrast agent and as such are effective as diagnostic and therapeutic agents. Methods provided herein are to diagnosing or locating a cancer, treating a cancer, eliciting an immune response against a cancer or delivering an anticancer drug in situ via an enzymatic nanofactory using the soluble SWNT constructs.

The present invention provides soluble single wall nanotube (SWNT) constructs functionalized with a plurality of a targeting moiety and a plurality of one or more payload molecules attached thereto. The targeting moiety and the payload molecules may be attached to the soluble SWNT via a DNA or other oligomer platform attached to the SWNT. These soluble SWNT constructs may comprise a radionuclide or contrast agent and as such are effective as diagnostic and therapeutic agents. Methods provided herein are to diagnosing or locating a cancer, treating a cancer, eliciting an immune response against a cancer or delivering an anticancer drug in situ via an enzymatic nanofactory using the soluble SWNT constructs.

Carbon nanotubes have at least one crystal defect in a region between a first end and a second end of the carbon nanotubes, of which a ratio (G/D) between an intensity IG of a peak caused by a graphite structure appearing in a G band around 1580 cm.sup.1 and an intensity of ID of a peak caused by various defects appearing in a D band around 1360.sup.1 in Raman spectrum obtained at an excitation wavelength of 632.8 nm is in a range of 0.1 to 0.5.

Carbon nanotubes have at least one crystal defect in a region between a first end and a second end of the carbon nanotubes, of which a ratio (G/D) between an intensity IG of a peak caused by a graphite structure appearing in a G band around 1580 cm.sup.1 and an intensity of ID of a peak caused by various defects appearing in a D band around 1360.sup.1 in Raman spectrum obtained at an excitation wavelength of 632.8 nm is in a range of 0.1 to 0.5.

An object of the present invention is to prevent edge scraps from being generated when carbon nanotubes are drawn out, and to prevent generated edge scraps from being mixed in a carbon nanotube web. A method for drawing out a carbon nanotube web in accordance with an aspect of the present invention includes a hard-to-draw part forming step of forming grooves each of which has a width that is smaller than a length of one CNT in a CNT array and forming hard-to-draw parts which are formed in regions abutting on the grooves and in which the CNTs are difficult to draw out from the CNT array, and a drawing out step of drawing a CNT web out from a region between the plurality of hard-to-draw parts in the CNT array.

A system and method of producing carbon nanotubes from flare gas and other gaseous carbon-containing sources.

Disclosed are methods and systems of providing carbon nanotubes decorated with polymer coated metal nanoparticles. Then, annealing the metal coated carbon nanotubes to reduce a quantity of hydrophilic components of the polymer coating.