48results about "Specific nanostructure formation" patented technology

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 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.

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 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.

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.

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.

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.

A method of fabricating an array on nanoparticles includes forming a solution containing a material precursor and an electrolyte. The solution is laded into a pipet and a wire is inserted into the solution. The pipet is brought into contact with a substrate and an electrical bias is applied between the substrate and the wire. A nanoparticle is formed via electrodeposition. The steps of bring a pipet into contact with the substrate, applying an electrical bias, and forming a nanoparticle across an array of contact points to create the array of nanoparticles. The substrate is rinsed with a solvent to remove residual electrolytes.

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 molecular motor and a method of driving the molecular motor step-by-step on a track under bi-colour light irradiations. The molecular motor comprising a hairpin leg and a non-hairpin leg. The molecular motor can be instructed to move to specific states or positions on the track by illumination of alternate lights, such as ultraviolet light and visible light, presenting a translational molecular motor with capability of top-down control by selecting the irradiation wavelengths.

To provide a system and a device for determining a nanopore-based arrangement having an acceptable sensitivity and manufacturing cost.SOLUTION: A 3D nanopore device for characterizing a biopolymer molecule includes a first selection layer having a first selection axis. The device is arranged next to the first selection layer and includes a second selection layer having a second selection axis perpendicular to the first selection axis. The device further includes a third electrode layer arranged next to the second selection layer. The first, second, and third electrode layers form a stack of layers along a Z-axis and define a plurality of nanopore pillars.SELECTED DRAWING: Figure 2-1

The invention relates to the technical field of nano-particle preparation, in particular to a nano-particle evaporation preparation device which comprises a reaction kettle, a cooling granulation mechanism for cooling raw material smoke to promote nucleation is arranged at the upper end of an inner cavity of the reaction kettle, and a smoke evaporation mechanism for heating and evaporating raw materials is arranged at the lower end of the inner cavity of the reaction kettle. A flat plate collection mechanism is arranged between the smoke evaporation mechanism and the cooling granulation mechanism, an annular inflation mechanism for providing low-pressure inert gas is arranged on the outer side of the reaction kettle, and the cooling granulation mechanism comprises a mounting circular plate movably mounted on a circular end cover. According to the invention, the cooling granulation mechanism is arranged, and the rotary drum assembly and the mounting circular plate are matched with each other, so that the rotary drum assembly can be in a uniform-speed rotation state while performing shock cooling on the raw material smoke, and the raw material smoke in the reaction kettle can be mechanically stirred, thereby effectively preventing particle aggregation; and the collision speed of the raw material smoke and the rotary drum assembly can be obviously improved.

A method for autonomously applying a dangling bond pattern to a substrate for atom scale device fabrication includes inputting the pattern, initiating a patterning process, scanning the substrate using a scanning probe microscope (SPM) to generate an SPM image of the substrate, feeding the SPM image into a trained convolution neural network (CNN), analyzing the SPM image using the CNN to identify substrate defects, determining a defect free substrate area for pattern application; and applying the pattern to the substrate in that area. An atom scale electronic component includes functional patches on a substrate and wires electrically connecting the functional patches. Training a CNN includes recording a Scanning Tunneling Microscope (STM) image of the substrate, extracting images of defects from the STM image, labeling pixel-wise the defect images, and feeding the extracted and labeled images of defects into a CNN to train the CNN for semantic segmentation.

Disclosed are devices, systems, and methods for fabrication of moving, actuatable structures at micron scales that can be electronically controlled using low power and low voltages. Also disclosed are microscale robots having such microscale actuator structures to actuate the robots' movements as well as devices, systems, and methods for fabrication of microscale robots. The disclosed methods of fabrication are compatible with standard semiconductor technologies.

The application discloses a glucose oxidase driven swimming nanorobot and a preparation method thereof, and belongs to the technical field of swimming nanorobots. The application constructs a small-scale swimming nanorobot with biocompatibility. The application uses a sol-gel method to prepare mesoporous silica balls with small scales, and then constructs a yin-yang type mesoporous silica-gold nanoparticle after unilateral modification of metal gold. After modification of glucose oxidase and polyethylene glycol on the gold side, the swimming nanorobot has certain biocompatibility, and can perform self-propelled motion in a glucose solution. The application effectively avoids biological adhesion, can meet the application scene requirement when applied in a biological environment, and has a good application prospect in the fields of active drug delivery, biosensing and the like.

The invention relates to a preparation method, application and equipment of a patterned array structure of functional nanoparticles. The preparation method of the patterned array structure of the functional nanoparticles comprises the steps that a substrate is provided, the surface of the substrate is provided with a microstructure, the microstructure comprises boss sets arranged in the Y direction, each boss set comprises boss columns arranged in the X direction, the top of each boss column is provided with a platform face, the width of each boss face in the X direction is w, and the width of each boss face in the X direction is w. The width d of the gap between the platform surfaces of the adjacent boss columns and the depth h of the gap between the platform surfaces of the adjacent boss columns meet the conditions that h is larger than or equal to 0.1 d and smaller than or equal to 10d, and w is larger than or equal to 0.1 d and smaller than or equal to 10d; the width d of the gap is 0.1 to 100 [mu] m; and directly writing dispersion liquid of functional nano particles on the surface of the boss group of the substrate. The substrate with the special surface microstructure is utilized, the patterned array structure of the functional nano particles can be obtained through direct writing, operation is simple and easy to control, the pixel resolution of the array pattern of the array points is high, direct writing can be carried out on multiple array point groups in the Y direction at the same time, and the accuracy of the array pattern is improved. And large-area and high-throughput preparation of array point array patterns with the size of less than 100 microns is realized.

Branched aramid nanofibers (ANFs) can be made by controlled chemical splitting of micro and macroscale aramid fiber by adjusting the reaction media containing aprotic component, protic component and a base. Branched ANFs have uniform size distribution of diameters in the nanoscale regime (below 200 nm) and high yield exceeding 95% of the nanofibers with this diameter. The method affords preparation of branched ANFs with 3-20 branches per one nanofiber and high aspect ratio. Branched ANFs form hydrogel or aerogels with highly porous 3D percolating networks (3DPNs) frameworks that are made into different shapes. Polymers and nanomaterials are impregnated into the 3DPNs through several methods. Gelation of branched ANFs facilitates layer-by-layer deposition in a process described as gelation assisted layer-by-layer deposition (gaLBL). A method of manufacturing battery components including ion conducting membranes, separators, anodes, and cathodes is described. The method of manufacturing of materials with high mechanical performance based on branched ANFs and 3DPNs from them is disclosed.

A selectively-absorbing material includes a silicone polymer and transition-metal oxide nanoparticles dispersed therein. Each of the transition-metal oxide nanoparticles includes manganese. A solar receiver includes (i) a metal substrate including an etched surface having a microroughness between 0.05 micrometers and two micrometers; (ii) a polymer matrix disposed on the etched surface; and (iii) transition-metal oxide nanoparticles dispersed within the polymer matrix. A method for producing transition-metal oxide nanoparticles includes recrystallizing a plurality of two-element nanoparticles at a temperature between 300 and 700° C. The plurality of two-element nanoparticles includes at least two of (i) copper oxide nanoparticles, (ii) manganese oxide nanoparticles, and (iii) iron oxide nanoparticles. A method for fabricating a selective-absorber includes etching a top surface of a metal substrate; depositing a polymer-matrix composite on the etched top surface; and interdiffusing the polymer-matrix composite and the metal substrate. The polymer-matrix composite includes transition-metal oxide nanoparticles dispersed therein.

A metal oxide layer comprising a modified metal oxide nanoparticle, wherein the modified metal oxide nanoparticle comprises an organic acid metal salt on the surface of a metal oxide nanoparticle, and the organic acid metal salt has Formula 1, wherein m is a whole number selected from 0-2; n is a whole number selected from 0-12; X is —O— or a bond; R1 for each instance is independently H, OH, alkyl or cycloalkyl; R2 for each instance is independently hydrogen or alkyl; or two instances of —CR2— taken together form a double bond; and represents a metal counterion. An organic photovoltaic cell comprising the metal oxide layer can achieve improved PCE and stability.