Abstract: A method for manufacturing a nano pattern writer includes forming one or more grooves on a first layer, depositing a substance on the first layer to form a film on the first layer, polishing the film on the first layer to thereby form a patterned film that fills the one or more grooves on the first layer, placing a second layer over the patterned film to thereby form a layered structure interposing the patterned film between the first layer and the second layer, and removing a part of the first layer and the second layer to thereby expose portions of the patterned film.

Abstract: Compositions, structures and methods that relate to films having switchable reflectivity and anti-reflectivity depending on ambient conditions, such as temperature. A film with switchable reflectivity and anti-reflectivity includes a nanostructured first layer having nanopillars associated with nanowells. A hydrogel occupies at least a portion of the nanowells. As the hydrogel moves from a dehydrated state to a hydrated state, the surface of the film switches from being reflective to being anti-reflective in a repeatable and reversible process.

Abstract: Techniques for fabricating a structure from nanoparticles are generally described. Some example techniques are methods for fabricating an apparatus from nanoparticles. Example methods may include providing nanoparticles that are electrically charged with a first polarity and collecting the nanoparticles on a particle collection device having a second polarity opposite the first polarity. The nanoparticles can then be transferred onto a base structure from the particle collection device.

Abstract: Techniques for making nanowires with a desired diameter are provided. The nanowires can be grown from catalytic nanoparticles, wherein the nanowires can have substantially same diameter as the catalytic nanoparticles. Since the size or the diameter of the catalytic nanoparticles can be controlled in production of the nanoparticles, the diameter of the nanowires can be subsequently controlled as well. The catalytic nanoparticles are melted and provided with a gaseous precursor of the nanowires. When supersaturation of the catalytic nanoparticles with the gaseous precursor is reached, the gaseous precursor starts to solidify and form nanowires. The nanowires are separate from each other and not bind with each other to form a plurality of nanowires having the substantially uniform diameter.

Abstract: Transparent structures, electrochromic devices, and methods for making such structures/devices are provided. A transparent structure may include a transparent substrate having a plurality of micro- or nano-scale structures, at least one substance configured to block near-infrared or infrared radiation and partially cover at least substantial portions of the substrate and the plurality of micro- or nano-scale structures, and at least one photocatalyst configured to at least partially cover an outermost surface of the transparent structure.

Abstract: Transparent structures, electrochromic devices, and methods for making such structures/devices are provided. A transparent structure may include a transparent substrate having a plurality of micro- or nano-scale structures, at least one substance configured to block near-infrared or infrared radiation and partially cover at least substantial portions of the substrate and the plurality of micro- or nano-scale structures, and at least one photocatalyst configured to at least partially cover an outermost surface of the transparent structure.

Abstract: A method for manufacturing a carbon nanotube (CNT) of a predetermined length is disclosed. The method includes generating an electric field to align one or more CNTs and severing the one or more aligned CNTs at a predetermined location. The severing each of the aligned CNTs may include etching the predetermined location of the one or more aligned CNTs and applying a voltage across the one or more etched CNTs.

Abstract: A composite structure and methods of making and using are provided. The composite structure includes at least one nanofiber having silicon-based material and at least one carbon nanotube associated with the nanofiber. The silicon-based material includes one or more of silicon carbide, silicon oxycarbide, silicon nitride and silicon oxide.

Abstract: Methods for preparing one or more conductive nanostructures are provided. In accordance with one embodiment, a method for preparing one or more conductive nanostructures may include providing a composite of nanoparticles and block copolymer including one or more first microdomains and one or more second microdomains, where conductive nanoparticles are selectively distributed in the one or more first microdomains, removing the first microdomains while leaving the conductive nanoparticles in the composite, forming one or more conductive nanostructures on the conductive nanoparticles, and removing the second microdomains.

Abstract: A method for sorting carbon nanotubes (CNTs) is disclosed. In one embodiment, a method for sorting CNTs of the present disclosure comprises providing to a surface of a substrate, the surface modified with a trans isomer of photo-isomerization-reactive diazo compound, a dispersion containing a mixture of conducting CNTs and semiconducting CNTs; removing CNTs which are not associated with the modified surface from the surface; and irradiating the modified surface to detach the CNTs associated with the modified surface.

Abstract: A piezoelectric nanodevice may include a first substrate having formed thereon a multiple number of nanorods and a second substrate having formed thereon a multiple number of piezoelectric nanorods. The first substrate associates with the second substrate to generate friction between the nanorods of the first substrate and the piezoelectric nanorods of the second substrate.

Abstract: Techniques for providing heat to a small area and apparatus capable of providing heat to a small area are provided.

Abstract: Transparent structures, electrochromic devices, and methods for making such structures/devices are provided. A transparent structure may include a transparent substrate having a plurality of micro- or nano-scale structures, at least one substance configured to block near-infrared or infrared radiation and partially cover at least substantial portions of the substrate and the plurality of micro- or nano-scale structures, and at least one photocatalyst configured to at least partially cover an outermost surface of the transparent structure.

Abstract: Apparatuses and techniques relating to a resistive heating device are provided.

Abstract: A method for manufacturing a nano pattern writer includes forming one or more grooves on a first layer, depositing a substance on the first layer to form a film on the first layer, polishing the film on the first layer to thereby form a patterned film that fills the one or more grooves on the first layer, placing a second layer over the patterned film to thereby form a layered structure interposing the patterned film between the first layer and the second layer, and removing a part of the first layer and the second layer to thereby expose portions of the patterned film.

Abstract: Compositions, systems and methods for using a nanoparticle composite to act as a valve within a microfluidic conduit to regulate fluid flow therethrough are provided. The nanoparticle composite includes a core having magnetic particles and Au particles and includes a hydrogel coating surrounding the core. The size of the nanoparticle composite is controlled by causing the hydrogel coating to lose water or absorb water, thus decreasing or increasing the size of the nanoparticle composite within the microfluidic conduit.

Abstract: Nano structure patterning formation includes coating a part of a structural guide with a hydrophobic polymer, positioning the structural guide on a substrate, coating at least a part of the substrate with a film made of a block copolymer, and annealing the film made of the block copolymer to align the block copolymer.

Abstract: A self-cleaning surface and methods of forming a self-cleaning surface that has one or more of hydrophobic characteristics and hydrophilic properties are provided. The self-cleaning surface includes a first layer formed from first nanoparticles that are applied on a substrate. A second layer of second nanoparticles that adhere to the first nanoparticles are then formed on the first layer.

Abstract: Nanoimprint molds for molding a surface of a material are provided. A nanoimprint mold includes a body with a molding surface that is formed by shaped nanopillars. The nanopillars may be formed on a substrate and shaped by performing at least a first partial oxidation of the nanopillars and then removing at least a portion of the oxidized material. Once shaped, a hard substance is deposited on the nanopillars to begin forming the molding surface of the nanoimprint mold. The deposition of a hard substance is followed by the deposition of carbon nanotube on the hard substance and then the removal of the substrate and nanopillars from the molding surface.

Abstract: Apparatuses and techniques for fabricating a structure from nanoparticles are provided.