74results about "Specific nanostructure formation" patented technology

The invention provides an asymmetric double-nanopore metasurface refractive index sensor, a preparation method and a detection method, and relates to the technical field of refractive index detection. The dielectric layer is formed on the surface of the substrate, a plurality of asymmetric nano-pore unit structures are formed in the dielectric layer, each asymmetric nano-pore unit structure comprises a first nano-pore and a second nano-pore, and the first nano-pore and the second nano-pore have different radiuses and / or different relative positions; structural symmetry is destroyed, and a quasi-continuum bound state resonance mode is formed; the asymmetric double-nanopore metasurface refractive index sensor is configured to generate double formants corresponding to a preset working wavelength under excitation of linear polarized light.

A method of assembling a chiral superstructure includes applying a quadrupole magnetic field to a plurality of magnetic nanostructures and configuring the plurality of magnetic nanostructures into a chiral superstructure by controlling a magnitude and a direction of the quadrupole magnetic field. A magnetic chiral superstructure includes a plurality of magnetic nanostructures assembled into a chiral superstructure by applying a quadrupole magnetic field to the plurality of magnetic nanostructures and configuring the plurality of magnetic nanostructures into a chiral superstructure by controlling a magnitude and a direction of the quadrupole magnetic field.

A graphene material-metal nanocomposite having a metal core with one or more graphene material layers disposed thereon. The nanocomposite can be formed by contacting metal nanowires with one or more graphene materials and / or graphene material precursors in a dispersion. The nanocomposite can be used to form inks for coating or printing conductive elements or as conductors in various articles of manufacture. The article of manufacture can be an electrical or electronic device. [Selection diagram] None

The present disclosure provides an article including an organic layer having a nanostructured first surface including nanofeatures defining nanorecesses and an opposing second surface; and a ceramic layer disposed on the nanostructured first surface of the organic layer and filling at least a portion of the nanorecesses. The ceramic layer has a nanostructured first surface including nanofeatures and an opposing second surface, and the nanostructured first surface of the ceramic layer is interpenetrated with the nanostructured first surface of the organic layer. The present disclosure also provides a method of making the article. The method includes obtaining an organic layer having a nanostructured first surface including nanofeatures defining nanorecesses and an opposing second surface; and filling at least a portion of the nanorecesses of the nanostructured first surface of the organic layer with a ceramic material to form the article. In addition, the present disclosure provides articles including interpenetrating layers having different elastic storage moduli, such as non-metallic layers, and methods of making the articles. The articles can exhibit high abrasion resistance.

Disclosed is a method for diagnosing Alzheimer's disease based on deep learning and an SAM, and a SERS substrate therefor. According to an embodiment, a deep learning and self-assembled monolayer (SAM)-based Alzheimer's disease diagnosing method performed by a computer device includes preparing a three-dimensional (3D) surface-enhanced Raman scattering (SERS) substrate by continuously stacking nanowire layers arranged in parallel by using a nanotransfer printing technology, forming an SAM on the 3D SERS substrate, and obtaining a Raman signal by applying a metabolite solution on the 3D SERS substrate having the SAM on a surface.

A method for forming a structure may include atomizing a colloidal suspension of functionalized particles suspended in a solvent to create a plurality of droplets, each droplet comprising one or more of the functionalized particles and directing the droplets to an injection site present on a liquid surface of a liquid contained within a reservoir to form a self-assembled particle monolayer on the liquid surface, wherein each functionalized particle comprises a particle functionalized with one or more molecules in order to impart desired hydrophobic, hydrophilic, electrostatic, and / or chemical properties onto the particles.

A porous composite structure including a substrate including a plurality of nanostructures; a particle layer disposed on a surface of the substrate; and a liquid, a method of preparing the porous composite structure, an article including the porous composite structure, and an air purifier including the porous composite structure.

A machine-readable medium and methods of reading and writing same are disclosed. The machine-readable medium comprises a substrate having an array of addressable locations thereon, each addressable location adapted to be physically associated with a collection of non-polymeric molecules. The molecules in each collection are selected from a set of unambiguously identifiable molecules, each molecule uniquely associated with a predetermined position in a numerical value, wherein the presence of the molecule in the collection indicates a predetermined digit at the associated position and the absence of said molecule in the collection indicates a zero at said associated position.

The present invention discloses a method for controllably preparing a visible light-induced SiN nanonetwork platform and its application. The method is as follows: (1) Use the electron beam of a transmission electron microscope to focus on the SiNx thin film to prepare nanopores with different diameters; (2) Place the SiNx thin film with nanopores obtained in step (1) in solution A, and irradiate it with a highly uniform xenon lamp for different times at room temperature to shrink the pore diameter; (3) Observe the change in the pore diameter of the SiNx nanopores after irradiation under TEM, and determine the variation law of the pore diameter with the irradiation time; (4) Realize the controllable preparation of SiNx nanopores with the desired pore diameter according to the variation law in step (3). The present invention uses the electron beam of a transmission electron microscope to prepare nanopores with different pore diameters, and then uses visible light to induce the shrinkage of SiNx pores. The method is simpler, has lower cost, and the prepared inorganic nanonetwork has good structural stability, adjustable size, easy modification, can be reused, and can be used for the construction of a fully inorganic protein capture platform and protein structure analysis.

A method of preparing an optical element made of a transparent plastic with embedded nanoparticles, the method comprising: a) activating the surface of the optical element by attaching sulfate groups to the surface; and b) exposing the activated surface to nanoparticles, and allowing the nanoparticles to diffuse into the optical element.

A biosensor for monitoring surface binding events is disclosed. The biosensor comprises an array of nanoparticles and an analyte responsive polymer. The array of nanoparticles includes a plurality of nanoparticles distributed across the nanoparticle array. The analyte responsive polymer includes a recognition element at a first end of the polymer and a terminus at a second end of the polymer distal from the recognition element, the terminus end being conjugated to the nanoparticles in the array. When the recognition element reacts with an analyte, the analyte responsive polymer creates an electrochemical signal at the surface of the nanoparticle array which can be measured to monitor surface events of the analyte responsive polymer.

This invention relates to a large-area anisotropic ordered nanoarray and its preparation method. The method includes the following steps: modifying anisotropic magnetic nanoparticles to give them a negative charge on their surface, resulting in a negatively charged nanoparticle solution; sequentially modifying a matrix with silane and treating it with nanosphere photolithography to form positively charged periodic sites on the matrix surface, resulting in a patterned matrix; placing the patterned matrix in the negatively charged nanoparticle solution and applying a magnetic field, followed by adsorption and orientation, to obtain a large-area anisotropic ordered nanoarray. Compared with existing technologies, the array structure prepared by this invention exhibits collective response characteristics dependent on nanoparticle orientation, and the method is simple, inexpensive, and suitable for large-area production.

The subject of the present invention is a method for controlling the spatial arrangement of domains of mesogenic compounds, exhibiting the ability to synchronise chirality by controlled synchronisation of conformational chirality, characterised in that an area of a thin film of a compound forming a conglomerate of domains is heated above the isotropisation temperature of a given compound until a specific chirality is obtained in a given area, and the shape of the heated area corresponds to a selected pattern enabling the control of the crystallisation front, wherein the heating is carried out by means of area illumination with laser light of a wavelength corresponding to the high absorbance of the melted compound and / or area heating of a substrate on which the thin film of the compound is placed and / or by area illumination with laser light of a wavelength corresponding to the high absorbance of a dye added to the film.

A 3D nanopore device for characterizing biopolymer molecules includes a first selecting layer having a first axis of selection. The device also includes a second selecting layer disposed adjacent the first selecting layer and having a second axis of selection orthogonal to the first axis of selection. The device further includes an third electrode layer disposed adjacent the second selecting layer, such that the first selecting layer, the second selecting layer, and the third electrode layer form a stack of layers along a Z axis and define a plurality of nanopore pillars.

Polypeptide nanopores synthetically functionalized with positively charged species, and methods of making and using the same, are provided herein. In some examples, a polypeptide nanopore includes a first side, a second side, a channel extending through the first and second sides, and a mutated amino acid residue. The mutated amino acid residue may be synthetically functionalized with a positively charged species that inhibits translocation of cations through the channel.

The embodiment of the invention provides a preparation method of a nanopore film, which comprises the following steps: firstly, forming a plurality of nano-scale metal groups on the surface of a substrate, then carrying out plasma etching on the substrate to form nanopores at target positions of the substrate, the target positions comprising the positions where the nano-scale metal groups are located, etching gas adopted in the plasma etching comprises carbon-containing gas and oxygen-containing gas; thus, in the etching process, active free radicals dissociated from the etching gas are enriched at the position of the nanoscale metal group by utilizing the carbon dissolving capacity of the nanoscale metal group, so that the etching rate at the position of the nanoscale metal group is increased, and meanwhile, the oxygen-containing gas destroys a protective film formed by the carbon-containing gas; and further increase of the etching rate at the position of the nanoscale metal group is facilitated, so that the etching rate at the position of the nanoscale metal group is far higher than that at other positions. By adopting the method, the preparation cost of the nanopore film can be reduced.

The invention relates to a method for manufacturing a three-dimensional nanostructure, the method comprising the following steps: - causing an injector (100) to oscillate between a low position in contact with a substrate (20) and a high position not in contact with the substrate (20), the injector (100) comprising an ejection port (108), the diameter of which is greater than 0.1 µm; - depositing an ink on the substrate (20) by means of the injector while the ejection port (108) of the injector (100) is in contact with the substrate (20), the ink comprising, in % by volume with respect to the total volume of the ink: - less than 15% of nanoparticles chosen from metal nanoparticles, nanoparticles of metal oxides, nanoparticles of graphene oxide or combinations thereof; - 0.5% to 5% of a dispersant; - at least 80% of a solvent that is capable of dispersing the metal nanoparticles in order to form the ink to be injected and sufficiently volatile to allow the ink to solidify once it has been deposited; and - moving the injector (100) away from the substrate (20) at a speed less than or equal to 10 µm / s along a direction substantially perpendicular to the substrate while ensuring the ink continues to flow from the injector. The invention also relates to cell lines obtained by the method.

The present invention belongs to the technical field of functional nanomaterials, and specifically relates to a method for preparing a mesoporous silica-platinum Janus nanomotor. The preparation method uses tetraethyl orthosilicate and bis-[γ-(triethoxysilyl)propyl]-tetrasulfide as silicon sources and hexadecyltrimethylammonium bromide as a pore-forming agent to synthesize mesoporous silica nanospheres. 3-aminopropyltrimethoxysilane is used to modify the amino groups, polyethyleneimine is coupled to the mesoporous silica nanospheres by glutaraldehyde, and then chloroplatinic acid is adsorbed onto the mesoporous silica nanospheres by electrostatic adsorption. Hydrazine hydrate is used as a reducing agent to reduce the chloroplatinic acid, and finally a mesoporous silica-platinum Janus nanomotor is formed; the nanomotor is anisotropic particles composed of mesoporous silica spheres and metallic platinum. The preparation method of the mesoporous silica-platinum Janus nanomotor provided by the present invention has the advantages of simple operation, no need for special equipment, and batch preparation.

A method of manufacturing a chiral nano-structure having chirality using a magnetic field according to one embodiment of the present disclosure includes a magnetic field forming operation that forms a magnetic field; a particle arranging operation that arranges at least two nanoparticles in the magnetic field; and a magnetic field adjusting operation that adjusts at least one of a magnetic flux density, a magnetization direction, and a spatial range of the magnetic field, in which in the magnetic field adjusting operation, the arrangement of the nanoparticles arranged in the magnetic field is aligned to correspond to a structure of the magnetic field, and the entire structure is formed as a nano-structure having chirality.

The application relates to the technical field of silicon nano array, and proposes a permeation passivation method for a silicon nano array, which comprises the following steps: dropping a passivation solution onto the surface of the silicon nano array, standing until permeation, and completing passivation. Through the technical scheme, 1) the passivation problem of the silicon nano array is solved, the silicon nano array prepared through physical etching and chemical etching is effectively and high-quality passivated, large-scale vacuum equipment required by an existing passivation scheme is eliminated, the process is simplified, the cost is reduced, and the safety is improved; 2) the silicon nano array is permeation passivated, so that the silicon nano array simultaneously has low reflection loss and low recombination loss functions, meets two necessary conditions of inverse Auger abnormal photovoltaic effect (that is, one photon generates two pairs of electron-hole pairs), the external quantum efficiency is greater than 100%, the SQ theoretical limit of the single-crystal silicon cell efficiency can be broken through, and higher cell photoelectric conversion efficiency can be obtained.

A method for producing a film of functionalized carbon nanostructures is disclosed. The method comprises: - providing an electrode comprising a film of carbon nanostructures attached to a support, - subjecting the electrode to an electrografting process in a bath containing water and at least one diazonium compound, - conducting the electrografting process using potential pulses, wherein each potential pulse consists of an ON- time, wherein potential is applied for 0.01 – 0.1 s and an OFF-time, wherein zero potential is applied for 0.01 – 0.1 s, to form anchoring sites on the surfaces of the carbon nanostructures. Further is disclosed a film of functionalized carbon nanostructures. Further is disclosed the use of the film or the method for forming a sensor, a filter, an electron stopping window, and / or a pellicle.

The present invention relates to a method for producing a three-dimensional nanostructure, the method comprising the steps of: - oscillating an injector (100) between a low position in contact with the substrate (20) and a high position out of contact with the substrate (20), the injector (100) having a discharge orifice (108) with a diameter larger than 0.1; - depositing ink onto the substrate (20) by the injector (100), while the outlet orifice (108) of the injector (100) is in contact with the substrate (20), the ink comprising a volume % of the total volume of the ink; - less than 15% nanoparticles selected from metal nanoparticles, metal oxide nanoparticles, graphene oxide nanoparticles, or a combination thereof; - 0.5% to 5% dispersant, - at least 80% of a solvent in which the metal nanoparticles can be dispersed to form the infused ink and which is sufficiently volatile to allow solidification of the ink once it is deposited; and - Withdrawing the injector (100) from the substrate (20) in a direction substantially perpendicular to the substrate at a rate of 10 while maintaining a flow of ink from the injector. The invention also relates to the nanostructures obtained by this method.

Aspects of the present disclosure generally relate to vibration sensors. The vibration sensors can include a vibration sensor including at least an aperture. A polymer including a n elastomer is disposed on the frame. A nanoribbon network is disposed on the polymer. Two or more electrodes are disposed on the nanoribbon network. The two or more electrodes have a spacing of about 500 nm to about 2000 μm.

M-phthalocyanine nanowires according to the present invention can have a variety of uses as the M-phthalocyanine nanowires can control the crystalline structure thereof by controlling the flow speed of a carrier gas to a suitable range, and can exist in hydrophilic solvent without agglutinating due to superb dispersibility in waterphase.

A method for producing a functionalized carbon nanostructure film is disclosed. The method comprises:-providing an electrode comprising a carbon nanostructured membrane attached to a support,-subjecting the electrode to an electrical grafting process in a bath containing water and at least one diazo compound,-subjecting the electrode to an electrical grafting process using electrical potential pulses wherein each electrical potential pulse consists of an on-time during which an electrical potential is applied from 0.01 to 0.1 s and an off-time during which an electrical potential is applied from 0.01 to 0.1 s, and-subjecting the electrode to a process for removing the diazo compound from the electrode. And in the turn-off time, applying a zero potential for 0.01-0.1 s to form anchoring points on the surface of the carbon nanostructure. Further, the present invention discloses a functionalized carbon nanostructure membrane. Further, the use of the film for forming a sensor, a filter, an electron blocking window and / or a photomask protective film or the use of a method for forming a sensor, a filter, an electron blocking window and / or a photomask protective film is disclosed.

The present disclosure provides a method including placing a substrate on a cylindrical electrode in a vacuum vessel, introducing at a first location in the vacuum vessel a first gaseous species capable of depositing a layer onto the substrate when formed into a plasma, and introducing at a second location in the vacuum vessel a second gaseous species capable of etching the substrate when formed into a plasma. The first location is closer to an entrance of the vacuum vessel at an unwind side than to the second location. The method further includes generating a plasma from the first gaseous species and the second gaseous species between the cylindrical electrode and a counter-electrode, rotating the cylindrical electrode to translate the substrate, and exposing a major surface of the substrate to the plasma. A layer is deposited on at least a portion of the major surface of the substrate and the substrate is etched, thereby forming nanostructures including at least one of nano-pillars, nano-columns, or continuous nano-walls including nano-pillars or nano-columns. An article is also provided, made by the method.

An example of a nanopore sensor device includes one or more cis wells; a cis electrode; a plurality of trans wells, each of the plurality of trans wells separated from the one or more cis wells by a lipid / solid-state membrane having a nanopore; a plurality of trans electrodes, each of the plurality of trans electrodes associated with one of the plurality of trans wells; a first concentration of an electrolyte within the one or more cis wells; and a second concentration of the electrolyte within the trans wells, wherein the first concentration is higher than the second concentration.

The invention relates to a method for manufacturing a three-dimensional nanostructure, the method comprising the following steps: - oscillating an injector (100) between a low position in contact with a substrate (20) and a high position out of contact with the substrate (20), the injector (100) comprising an ejection orifice (108) whose diameter is greater than 0.1 µm; - depositing an ink on the substrate (20) by means of the injector upon contact of the ejection orifice (108) of the injector (100) with the substrate (20), the ink comprising, in % by volume relative to the total volume of the ink: - less than 15% of nanoparticles chosen from metal nanoparticles, metal oxide nanoparticles, graphene oxide nanoparticles or combinations thereof;- 0.5% to 5% of dispersant,- at least 80% of a solvent capable of dispersing the metal nanoparticles to form the ink to be injected and sufficiently volatile to allow the ink to solidify once it is deposited; and- moving the injector (100) away from the substrate (20) at a speed less than or equal to 10 µm / s in a direction substantially perpendicular to the substrate while maintaining a flow rate of ink exiting the injector. The invention also relates to the nanostructures obtained by this method. Figure for the abstract: Fig. 1;

The embodiment of the present application discloses a method for manufacturing an optical device based on a nanocolumn with a high aspect ratio. For any nanocolumn in the optical device, the method includes: plating a first material on the end face of the substrate; etching a portion of the first material to obtain a target position for setting the nanocolumn, and plating a second material at the end face of the substrate where the first material is etched; plating a nanomaterial on the end face formed by the second material and the first material; etching the nanomaterial to retain the nanomaterial at the target position of the nanocolumn to obtain a nanocolumn, wherein the ratio of the height of the nanocolumn to the width of the nanocolumn is greater than or equal to 10; plating a protective material on the portion where the nanomaterial is etched to support the nanocolumn. By plating two layers of material in sequence, the height of the nanocolumn is increased while keeping the width of the nanocolumn unchanged, thereby achieving the purpose of increasing the aspect ratio. In addition, plating a protective material around the nanocolumn to support the nanocolumn effectively solves the problem of the nanocolumn falling over.

An article having an anti-reflective structure is provided. The antireflective article includes a substrate having a surface and a bulk, and an array of antireflective nanostructures along the surface of the substrate. Each antireflective nanostructure in the array of antireflective nanostructures is supported by the bulk of the material. Each antireflective nanostructure in the array of antireflective nanostructures tapers from the bulk of the substrate to define a respective peak. At least some of the antireflective nanostructures in the array of antireflective nanostructures are connected to adjacent antireflective nanostructures in the array of antireflective nanostructures via respective interconnects. Each interconnect is added to the bulk of the substrate supporting the antireflective nanostructures. Each interconnect is located at or on a midpoint between the peak of the antireflective nanostructure and the bulk of the substrate.