107 results about "Metallic nanostructures" patented technology

A heat pipe with a nanostructured wick is disclosed, with the method of forming the nanostructured wick on a metal substrate. The wicking material is a pattern of metallic nanostructures in the form of bristles or nanowires attached to a substrate, where the bristles are substantially freestanding.

The invention provides method for metallic nanonstructures self-assembly methods and materials testing. Preferred embodiment methods permit for the formation of individual nanonstructures and arrays of nanostructrues. The nanostructures formed can have a metal alloy crystal structure. Example structures include slender wires, rectangular bars, or plate-like structures. Tips can be shaped, single layer and multiple layer coatings can be formed, tips can be functionalized, molecules can be adhered, and many testing methods are enabled.

The invention discloses a preparation method of three crescent structural arrays including a crescent nanometer metal disc array, a crescent nanometer metal disc structural array supported by silicon columns and crescent scattered nanometer metal particles and the like. The preparation method of the crescent nanometer metal disc array includes technical steps of preparing a single ordered polystyrene nanometer ball dense array layer and a single ordered nanometer polystyrene ball non-dense array layer, depositing metal, preparing a metal nanometer round hole array, preparing a crescent mask hole array made of composite materials and the crescent nanometer metal disc array and the like; then etching the crescent nanometer metal disc array which is used as a mask to prepare the crescent nanometer metal disc structural array supported by the silicon columns and corroding the crescent nanometer metal disc array to prepare the scattered crescent nanometer metal particles. The preparation method is high in universality and adaptability, fine in compatibility, high in efficiency and low in cost and capable of bringing convenience for research of the crescent nanometer metal structures.

The invention discloses a novel metal cup-cylinder composite nano structure array which is formed by sequential arrangement of metal nano structure array units. The metal nano structure array units are of a metal cup-cylinder composite nano structure which comprises a cup-shaped metal nano outer wall, and the center of a cup groove formed by the metal nano outer wall is a cylindrical metal nano particle. The invention also discloses a preparation method of the metal nano structure array, and the preparation method comprises the processing steps of preparing a single-layer orderly polrvinyl benzene nano ball compact arrangement, preparing a single-layer orderly polrvinyl benzene nano ball non-compact arrangement, preparing a nano annular-structure array mask made of composite materials, preparing a silicon-nano-structure array template, preparing the metal cup-cylinder composite nano-structure array, and the like. The metal nano array structure provided by the invention has gaps with smaller nano sizes and can be used for realizing the Roman detection of a single biomolecule; and according to the preparation method, the compatibility is good, the efficiency is high and the cost is low.

A nano-structured optical wavelength transmission filter is provided. The optical filter includes a patterned substrate on which a high refractive index dielectric waveguide is arranged. A low index dielectric layer is arranged on the high refractive index dielectric waveguide, on which an array of metallic nanostructures is arranged. The layers of the optical filter have conformal shapes defined by a patterned surface of the substrate. An optical filter system includes the optical transmission filter and a detector array fixed to the substrate. A spectrometer includes at least one optical transmission filter and/or at least one said optical transmission filter system, and has a spectral resolution of lower than 30 nm for incident light having a wavelength between 300 nm and 790 nm. A method of fabrication of an optical filter, an optical filter system and a spectrometer is also described.

The invention discloses a core-shell structured silica @ mesoporous silica supported gold nanoparticle microbead and a preparation method of the same, relates to the gold nanoparticle microbead and the preparation method of the same, and aims at solving the technical problem of poor quality of Raman spectrum of the existing metal nano structure. The core-shell structured silica @ mesoporous silica supported gold nanoparticle microbead is composed of a core layer and a shell layer. The preparation method comprises the following steps of: preparing small silica nanoparticle; preparing silica nano seeds; preparing core-shell structured silica @ mesoporous silica nanoparticle sol solution; preparing silica @ mesoporous silica nanoparticle; preparing silica @ mesoporous silica nanoparticle of which the shell layer comprises amino groups; preparing the core-shell structured silica @ mesoporous silica supported gold nanoparticle; and preparing the core-shell structured silica @ mesoporous silica supported gold nanoparticle microbead. The microbead prepared by the method is controllable in size and appearance, high in stability and capable of effectively enhancing the Raman spectrum.

A method for fabricating one-dimensional metallic nanostructures comprises steps: sputtering a conductive film on a flexible substrate to form a conductive substrate; placing the conductive substrate in an electrolytic solution, and undertaking electrochemical deposition to form one-dimensional metallic nanostructures corresponding to the conductive film on the conductive substrate. The method fabricates high-surface-area one-dimensional metallic nanostructures on a flexible substrate, exempted from the high price of the photolithographic method, the complicated process of the hard template method, the varied characteristic and non-uniform coating of the seed-mediated growth method.

The invention discloses a nano-structure electrode for an energy storage device and a pseudocapacitor having the electrode. The nano-structure electrode has mutually-conductive and mutually-connected metal-nano-structure leading-out electrodes, wherein the surface of each leading-out electrode is wrapped with an active layer. The nano-structure electrode is also provided with a modification layer, wherein the modification layer is arranged between the surface of each leading-out electrode and each active layer. Each leading-out electrode is a metal nanowire, of which the diameter is 5 nm-500 nm, and the length is larger than 5 mum. The thickness of the active layer is 1 nm-1000 nm. The active layer is formed by stacking one or more layer of son active layers, wherein the son active layers are made of any one of transition metal oxide, conductive polymer or composite pseudocapacitor materials. The modification layer is formed by stacking one or more layer of son modification layers, wherein the son modification layers are made of metal oxide, metal nitride or metal fluoride. The nano-structure electrode has the advantage of large surface area, and the pseudocapacitor having the nano-structure electrode with the structure above is large in capacity.

The invention belongs to the technical field of biosensors and specifically relates to a fluorescence enhanced type aptamer sensor as well as a preparation method and application thereof. A metal nanostructure is guided into a fluorescent molecular detection system, aptamer for modifying a certain amount of basic groups A is combined with metal nanoparticles through sulfydryl, and plasma resonancegenerated by the metal nanoparticles is utilized to improve fluorophore excitation efficiency; thus, fluorescent radiation amplitude is remarkably improved, and the purpose of amplifying fluorescencesignals is achieved. Meanwhile, the fluorescence enhanced type aptamer sensor which is used for detecting low-concentration target objects is provided by being combined with specificity selection ofaptamer, so that flexibility, accuracy and specificity of analysis detection are ensured, and detection of polyphyly of the target object is also achieved. Meanwhile, the fluorescence enhanced type aptamer sensor has the characteristics of low cost, no pollution and wider detection range.

Inorganic oxides, particularly silica or germania or inorganic oxides containing silica and/or germania, are imprinted with one or a plurality of functional moieties such as amine and/or thiol groups by a process featuring incorporating such groups into the oxide by use of a thermally labile material containing a protecting group for the amine or thiol, followed by removal of the thermally labile moiety by thermolysis. The resulting products are inorganic oxide substrates or bulk inorganic oxides imprinted with the functional moieties. A plurality of such moieties may be imprinted on a substrate in an order fashion using a polymeric imprinting compound, and may then be used as a templated array of functional moieties to which ordered metallic nanostructures may be constructed.

The invention discloses a cheap disorder broad-spectrum wide-angle antireflection structure and a manufacturing method thereof. The manufacturing method comprises the steps of: s1, depositing a dielectric film on the surface of a substrate material (or structure); s2, forming a metal colloid film on the surface of the dielectric film; s3, heating the metal colloid film to obtain a metal nano structure; s4, etching the dielectric film by taking the metal nano structure as a mask to form the antireflection structure; s5, and removing the metal nano structure. The dielectric nano structure manufacturing scheme provided by the invention is simple and practicable, can achieve large-area manufacturing, only needs low temperature, and is low in manufacturing energy consumption and high in efficiency. In addition, the manufactured disorder dielectric nano structure and the residual metal mask can obtain excellent broad-spectrum wide-angle antireflection effect.

The invention discloses a protein detecting chip based on micro-nanometer fluid and a preparation method of the protein detecting chip, belonging to biotechnology. According to the protein detecting chip disclosed by the invention, sample introduction, reaction and detection are integrated on a micro-fluidic chip, and extremely high detection sensitivity is realized through the fluorescence enhancement effect of a metal nanometer structure. Compared with a conventional method, the preparation method disclosed by the invention has the advantages that quick high-sensitivity detection of proteinis realized, complex operation is not needed, and the overall detection course is automatically completed. Besides, a large-scale preparation method is provided based on a micro nanometer processing technology, the cost of chips is reduced, and the large-scale preparation method is suitable for large-scale production and application.

The present invention relates to digital pathology. In order to improve uniformity at microscopic level and to enhance stability in time for color calibration, a calibration slide (10) is provided for a digital pathology scanning microscope. The calibration slide comprises a substrate (12) and a pixel layout (14) comprising a plurality of spaced apart metal nanostructures (16) arranged on a surface (18) of the substrate. The substrate is optically transparent. The metal nanostructures are arranged to produce plasmon resonances for generating a color image under a bright-field illumination. The color image comprises a plurality of calibration color values that are provided for calibrating a digital pathology imaging system.