26results about "Specific nanostructure formation" patented technology

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.

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.

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 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.

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.

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

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 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.

The application belongs to the technical field of nanostructure manufacturing, and discloses a method for modifying 3D nano patterns by plasma and guiding self-assembly of block copolymers. The preparation steps of the application include: grafting polymer brushes / felts to a substrate surface, cleaning, spin coating photoresist, exposure, development, plasma modification and cleaning. In the method, the interface free energy between the block copolymer and the brush / felt is adjusted by modifying the polymer brush / felt by plasma, so that a non-selective substrate is obtained. The method is easy to implement, simple to synthesize, and is a way to obtain neutral molecular brushes worthy of promotion. At the same time, the block copolymer is guided to carry out density multiplication assembly, and a defect-free long-range ordered morphology is obtained. Compared with the traditional chemical pattern method, the method reduces the step of trimming etching, has lower requirements for equipment in the preparation process, and has a simple preparation process and is easy to control. By changing the exposure dose and oxygen plasma modification conditions, different block copolymers can be guided to carry out assembly, and a higher density multiplication effect can be obtained.

A metal oxide layer comprising modified metal oxide nanoparticles wherein the modified metal oxide nanoparticles comprise an organic acid ligand on a surface of the metal oxide nanoparticles, and the organic acid ligand has Formula 1 wherein m is an integer selected from 0-2; n is an integer selected from 0 to 12; x is-O-or a bond; r1 is independently in each case H, OH, alkyl or cycloalkyl; r2 is independently in each case hydrogen or alkyl; or two-CR2-together form a double bond; and represents that the surface of the metal oxide has a positive potential point. An organic photovoltaic cell comprising the metal oxide layer can achieve improved PCE and stability. 1

A new class of ordered functional nanoporous material (OFNMs) with a unique combination of electronic conductivity, gas transport ability, and ion transport properties are provided. The OFNM provided is highly ordered and contains nanometer scale pores lined with nitrogen atoms. The pores have dimensions of from 1.2 nm to 82 nm of longest linear extent across the pore. The functionality within the pore is controlled through selection of groups that extend into the pore. The degree of conjugated aromaticity is readily controlled to adjust the electrical conductivity properties of the resulting structure. By adjusting the groups external to the pore, three-dimensional structures are formed that are organic mimics of zeolites, metal organic frameworks (MOF), or perovskites.

A method is provided for manufacturing pigments of defined size and shape, and to pigments manufactured accordingly. The method has the steps of: a) producing a three-dimensional surface structure on a substrate, where surface regions are formed each having a gradient extending obliquely to a base level of the surface structure, and are arranged in columns which are offset relative to one another; b) applying a pigment material layer on the surface structure; c) releasing the pigment material layer from the surface structure and producing pigments.

The present invention relates to a method of controlling the arrangement of building block nanocrystals in iron oxide mesocrystals by controlling the type of surface ligand, the method including mixing an iron ion precursor and a surface ligand. The present invention can provide nanoparticles having different magnetic properties by controlling the crystallographic arrangement of building block nanocrystals in mesocrystals according to surface ligands.

The present disclosure describes electrospinning systems and apparatuses suitable for use in high throughput industrial settings. The disclosed systems and apparatuses may include a high voltage power supply having positive and negative electrodes; one or more spinnerets that include one or more convergent-divergent nozzles, one or more turbo canals, or a combination thereof; and a collector. The systems and apparatuses may further include one or more peristaltic pumps. In some implementations, the systems and apparatuses may be designed to produce nanofibers from multiple polymer solutions simultaneously. The collector may be an adjustable collector that is composed of multiple metal sheets. The collector may alternately be a conveyor belt collector. The systems and apparatuses may optionally further include one or more of a ventilation system that reduces sparking inside the electrospinning chamber, a chamber for reducing power consumption when using an optional heater or dehumidifier, and an in-line quality control system.