80 results about "Nanodevice" patented technology

The invention relates to a method for regulating and controlling thermal conductivity of a nanometer semiconductor interface in contact and non-contact states. The method comprises the following steps: (1) establishing a molecular dynamics thermal transport model consisting of a hot area A and a cold area B; (2) executing molecular dynamics simulation and data processing: comparing interface thermal conductance at different torsion angles in a contact state and a non-contact state so as to determine a dependency relationship of the interface thermal conductance on the torsion angles; in the contact state, comparing the overlapping areas of the phonon state densities at the contact interface under different torsion angles, and determining the influence of the overlapping areas of the phonon state densities on heat transport of different interface torsion angles; and in a non-contact state, comparing the force constants of the interface interaction potential and the LJ potential at different torsion angles, and determining the influence of the force constants on heat transport in different interface torsion angle states. By regulating and controlling the torsion angle, the normal load and the potential well depth, effective regulation and control of the ITC are realized, and an important basis is provided for thermal management of a nano device.

The present invention is based on a nanodevice comprising a nanoparticle comprising a therapeutic agent, a molecular drill comprising a compound with catalytic activity, and a self-propulsion system. The molecular drill in combination with the self-propulsion system allows breaking the matrix of biofilms formed by infectious microorganisms with high efficiency and the molecular drill, in turn, allows the therapeutic agent to be released from the nanoparticle under specific conditions, preferably in the acidic environment of an infection. The invention relates to the nanodevice, to the nanodevice used in the treatment of an infection caused by biofilms, and to the use of the nanodevice to disinfect samples in vitro or inert materials ex vivo.

The invention discloses a novel method for preparing a coralline In2O3 nano material by a low-heat solid-phase precursor method. According to the method, indium nitrate hydrate (In (NO3) 3 * xH2O) and sodium hydroxide (NaOH) are used as raw materials, a precursor is generated through a solid-phase chemical reaction, then calcination treatment is carried out under the low-temperature condition of 300 DEG C, and the In2O3 nanosheet material formed by self-assembly of nanoparticles is obtained after washing and vacuum drying. According to the method, a solvent-free solid-phase reaction system is innovatively adopted, the limitation of an organic solvent in a traditional liquid-phase method is broken through, the contact efficiency of a reaction interface is effectively improved, and the reaction energy consumption is reduced. The preparation method has the characteristics of simple operation steps, high safety coefficient, environmental friendliness, easiness in realization of large-scale production and the like, and has certain technical enlightenment for large-scale preparation of high-end nano devices such as photoelectric catalytic materials and gas sensitive sensor elements.

This invention discloses a method for controlling the thermal relaxation path of superconducting nanostructures and its application. This method utilizes a van der Waals integration strategy to sequentially fabricate a molybdenum disulfide layer on a silicon / silicon oxide substrate using chemical solution deposition and a niobium nitride superconducting layer using magnetron sputtering, constructing a niobium nitride / molybdenum disulfide heterostructure with intrinsic anisotropic thermal conductivity. Superconducting nanodevices with specific geometric configurations are designed for this heterostructure. Leveraging the ultra-high in-plane thermal conductivity of molybdenum disulfide and its suppressed out-of-plane heat transfer characteristics, the method achieves directional control of the internal thermal relaxation path of the superconducting nanostructure, verifying its dual advantages of optimizing thermal management and enhancing superconducting performance. The control method of this invention is mature and controllable, effectively transforming disordered thermal relaxation into directional heat transfer, significantly improving the thermal stability and integration density of superconducting devices, and providing a core solution for the thermal management of nanocircuits in fields such as superconducting quantum computing and high-sensitivity quantum detection.

According to embodiments of the present invention, a semiconductor device includes a plurality of nanodevices (ND1, ND2) including a plurality of upper transistors and a plurality of lower transistors. The plurality of nanodevices includes upper active regions (135, 140, 145) and lower active regions (120, 125) that are offset from each other across the plurality of upper transistors and the plurality of lower transistors. A first front-side gate cut dielectric pillar (190, 195) is adjacent to and parallel with a first nanodevice of the plurality of nanodevices along an x-axis. A backside surface of the first front-side gate cut dielectric pillar extends a first width along a y-axis. A first backside dielectric filler (240, 245) is in direct contact with the backside surface of the first front-side gate cut dielectric pillar. A frontside surface of the first backside dielectric filler extends a second width along the y-axis. The second width is greater than the first width.

This invention belongs to the field of advanced manufacturing technology and relates to an electro-spraying method for inducing jets with pre-printed functional layers. Based on electrohydrodynamic effects, a jet is ejected to pre-print complex micro / nano functional structure patterns on a substrate. Then, under the action of an electric field, the jet size and deposition position are induced. Dual nozzles work together to rapidly achieve the same shape as the pre-printed functional layer. The pre-printed functional layer fully adheres to and solidifies with subsequent nanoscale continuous jets, forming a composite micro / nano functional structure. This electro-spraying method uses a pre-printed functional layer to change the distribution of the electric field on the substrate, ensuring the accuracy of the jet deposition position and reducing dimensional errors in the composite micro / nano functional structure process. It has advantages such as low equipment cost, simple process, and short processing cycle, optimizing the micro / nano functional structure and improving the performance and lifespan of nanodevices.

A capacitor at nanometer level and a resulting nanodevice such as a sensor are provided. The nanodevice includes a substrate, and a first 2D material layer disposed over the substrate and comprising a 2D material and being electrically conductive. The nanodevice further includes a polymeric nanoporous dielectric layer (NDL) disposed on the first 2D material layer. The polymeric NDL comprises a polymer having a crystalline structure and having lamellae substantially normal to a plane of the first 2D material. A conductive material layer is disposed on the polymeric NDL. The conductive material layer comprises a second 2D material layer or comprises a different electrically conductive material. The first 2D material, the polymeric NDL, and the conductive material layer are configured to provide a capacitor structure at a nanometer level. A method of making the capacitor or the nanodevice, and a method of using the same are also provided.

According to the embodiment of the present invention, a semiconductor device includes a first nanodevice comprised of a plurality of first transistors and a second nanodevice comprised of a plurality of second transistors. The first nanodevice includes a first source / drain contact. The second nanodevice includes a second source / drain contact. The second nanodevice is located adjacent to and parallel to the first nanodevice. A power bar is located between the first nanodevice and the second nanodevice. The power bar is connected to the second source / drain contact. A top surface of the power bar and the second source / drain contact are substantially in a same plane. The top surface of the power bar and the second source / drain contact are substantially a same height.

Embodiments include a nanoFET device and method for forming the same, the nanoFET having channel regions which have been thinned during a gate replacement process to remove etching residue. In some embodiments, the channel regions become dog bone shaped. In some embodiments, the ends of the channel regions have vertical protrusions or horns resulting from a previous trimming process which is performed prior to depositing sidewall spacers.

The application relates to a method for regulating the thermal conductivity of a nanometer semiconductor interface in contact and non-contact states, which comprises the following steps: (1) establishing a molecular dynamics thermal transport model composed of a hot region A and a cold region B; (2) performing molecular dynamics simulation and data processing: comparing the interface thermal conductivities under different twist angles in the contact state and the non-contact state to determine the dependence of the interface thermal conductivity on the twist angle; in the contact state, comparing the overlapping areas of the phonon state density at the contact interface under different twist angles to determine the influence of the overlapping area of the phonon state density on the thermal transport of different interface twist angles; in the non-contact state, comparing the force constants of the interface interaction potential and the LJ potential under different twist angles to determine the influence of the force constant on the thermal transport of different interface twist angles. The application realizes effective regulation of the ITC by regulating the twist angle, the normal load and the potential well depth, and provides an important basis for the thermal management of nanometer devices.

The application discloses an intelligent response type DNA nano device and a construction method and application thereof, and belongs to the field of DNA nanotechnology; the intelligent response type DNA nano device comprises a plurality of different DNA tetrahedron basic units and extension chains and miRNA response chains arranged on the DNA tetrahedron basic units; wherein the DNA tetrahedron basic units are connected by base complementary pairing between the extension chains and the miRNA response chains to form a multimer structure; the miRNA response chain comprises a base sequence capable of specific complementary pairing with a target miRNA to be detected, and the extension chain and the miRNA response chain are separated, so that specific configuration transformation of the nano device is induced. Through programmable assembly of the DNA tetrahedron and miRNA-induced configuration dynamic response, high specificity, high sensitivity, multi-channel parallel detection of a plurality of miRNAs are realized, and problems such as insufficient specificity, low sensitivity and poor targeting of a traditional miRNA detection method are overcome, so that the application has a wide application prospect in the fields of biomedical research and clinical diagnosis.

The invention discloses a polymer composite material nanometer processing method and system based on molecular dynamics simulation, and belongs to the technical field of nanometer material processing. According to the method, processing behaviors, including mechanical properties, thermal properties, interface interaction and the like, of the polymer composite material under the nanoscale are accurately predicted and optimized through a molecular dynamics simulation technology. The system comprises a molecular dynamics simulation module, a data processing module and a processing parameter optimization module, and can realize accurate control and optimization of the polymer composite material nano processing process. The method can be widely applied to the fields of nano device manufacturing, biomedical material processing and the like, and has the advantages of high efficiency, accuracy and high repeatability.

A method includes using a first procedure of discretizing a user specified nano-device structure for at least one quantum method with open boundary conditions. Additionally, the first procedure includes solving the at least one quantum method with open boundary conditions, thereby having a solution of the at least one quantum method with open boundary conditions. Moreover, the first procedure includes extracting a parameter out of the solution of the at least one quantum method with open boundary conditions. Furthermore, the first procedure includes discretizing at least one quantum method with closed boundary conditions to the user-specified nano-device structure using the parameter. Next, the first procedure includes solving the at least one quantum method with closed boundary conditions to the user-specified nano-device structure using the parameter. Further, the first procedure includes extracting the device behavior of the user-specified nano-device structure. The first procedure is iterated until a condition is satisfied.

The invention provides a method for preparing a double-sided nanometer motor by constructing an eccentric structure based on polyacrylic acid, and belongs to the field of nanometer devices, and the method comprises the following steps: preparing the eccentric structure by adjusting electrostatic adsorption and coordination bonding between spherical nanoparticles and PAA; and based on the eccentric structure, asymmetrically modifying the surface of the spherical nano-particle. The method has the advantages of being simple in preparation process, mild in reaction condition, capable of achieving macro preparation and the like, the industrialization process of the nano motor can be accelerated, the method can be expanded to various nano material systems, and a new thought is provided for preparation of the double-sided nano motor.

The invention discloses a method for preparing a double-sided structured micro-nano motor based on Pickering emulsion, and belongs to the technical field of nano device preparation, and the method comprises the following steps: preparing a paraffin-nano particle semi-surface structure by using Pickering emulsion; after selective modification is conducted on the surfaces of the exposed nano particles in the paraffin-nano particle semi-face structure, paraffin is removed, and eccentric nano particles are obtained; the invention discloses a micro-nano motor with a double-sided structure prepared on the basis of eccentric nanoparticles. The Pickering emulsion is creatively used for preparing the micro-nano motor of the double-sided structure, the method has the advantages of being simple, efficient, independent of equipment and the like, large-scale preparation of the micro-nano motor can be achieved, and industrial application of the micro-nano motor can be promoted.

The application belongs to the technical field of biomedicine, and relates to a mitochondrion-targeted nano device and a preparation method and application thereof, the nano device comprising a cascade-activated photodynamic molecular beacon and a mitochondrion-targeted delivery carrier, the cascade-activated photodynamic molecular beacon comprising an APE1 cleavage site and a microRNA recognition region. The cascade-activated photodynamic molecular beacon and the mitochondrion-targeted delivery carrier are self-assembled into a complex through electrostatic adsorption, and cascade activation and signal amplification are realized through the dual response of miR-146a / APE1 which is highly expressed in mitochondria of tumor cells. The application triggers precise and controllable cell pyroptosis through tumor-specific signals, reverses the immune-inhibitory microenvironment, converts the 'cold tumor' into a 'hot tumor', significantly improves the effect of cancer immunotherapy, has good biocompatibility and tumor selectivity, and provides a new strategy and tool for precise treatment of cancer.

The present invention relates to the field of micro-nanotechnology, and in particular to a 3D micro-nanostructure direct writing system based on spatial potential confinement, comprising: a model construction module, which constructs a 3D structure model based on the morphology and characteristics of the micro-nanostructure to be constructed, and generates a digital control signal and the dwell time and scanning rate of the electron beam during the direct writing process; a digital-to-analog conversion module, which performs digital-to-analog conversion and amplifies the digital control signal to obtain an analog control signal; a workbench module, which is used to carry the material to be written and adjust the angle of the material to be written; an electron beam module, which is used to emit an electron beam and focus it on the top of the material to be written, and control the focus of the electron beam to scan along a set path, directly writing the material to be written to obtain the micro-nanostructure to be constructed; and a beam gate module, which is opened and closed to control whether the electron beam is focused on the top of the material to be written. The present invention can flexibly, conveniently and at low cost realize the direct writing construction of micro-nanostructures and nanodevices, and has wide material universality.

The invention provides an ultra-low power consumption polymorphic spin nano device based on artificial antiferromagnetic structures, which comprises spin units arranged in an array, in a horizontal plane, each spin unit comprises an artificial antiferromagnetic structure arranged diagonally and an artificial ferromagnetic structure arranged diagonally, and the two artificial antiferromagnetic structures are connected with each other. The artificial antimagnet structure is an input end, and the artificial ferromagnetic structure is an output end; the artificial antiferromagnetic structure comprises a first ferromagnetic sub-layer, a first non-magnetic layer and a first top ferromagnetic layer which are sequentially arranged on one side of the electrode wire in the direction perpendicular to the horizontal plane; and the artificial ferromagnetic structure comprises a second non-magnetic layer, a second ferromagnetic sub-layer and a second top ferromagnetic layer which are sequentially arranged on one side of the electrode wire. According to the invention, the artificial antiferromagnetic structure is used as an input end, and the magnetization flipping field intensity is reduced by regulating and controlling the interlayer exchange coupling effect of the first ferromagnetic sub-layer, so that the driving current density of the spinning nano device is remarkably reduced, and the power consumption is further reduced.

The invention belongs to the field of functional polymer materials, and particularly relates to a preparation method of a Janus protein nano bowl. The invention develops a novel method capable of overcoming the difficulty of protein assembly and realizing controllable synthesis of the biodegradable protein-based Janus nano bowl, not only has important scientific innovation value, but also opens up a brand new way for construction of a next-generation high-performance biomedical nano device.

The invention discloses a size measurement method, device and equipment based on a through-focus scanning image and a medium, and relates to the technical field of nanometer device measurement. The method comprises the following steps: determining a size value set according to the prior morphology size of a to-be-measured nano device; establishing a simulation focus-through scanning image of each size in the size value set; performing principal component decomposition on the simulation focus-through scanning image to obtain a principal component coefficient matrix; establishing a regression matrix according to the size value set and the principal component coefficient matrix; performing principal component decomposition on the actually-measured focus-through scanning image of the to-be-measured nano device to obtain an actually-measured principal component coefficient matrix; and performing reverse inversion on the actually measured principal component coefficient matrix according to the regression matrix to obtain a measurement result. According to the method, the problem of out-of-focus image noise interference is effectively solved, the technical performance of the TSOM method is remarkably optimized in the aspects of precision, robustness, efficiency and the like, and key support is provided for large-scale application of the TSOM method in advanced nanometer manufacturing.

The present invention relates to the technical field of nanodevice preparation, and specifically to a method for batch preparation of enzyme-driven Janus nanomotors, comprising the following steps: preparing an asymmetric gold nanoparticle complex by electrostatic adsorption; modifying the surface of the gold nanoparticles with CHO-PEG-SH or acetylcysteine; separating and removing the magnetic microparticles electrostatically adsorbed to the gold nanoparticles to obtain CHO-PEG-SH-nanogold particles or acetylcysteine-nanogold particles; further modifying the nanoparticles with CHO-PEG-SH or acetylcysteine ​​to obtain gold nanoparticles modified with CHO-PEG-SH and acetylcysteine ​​on both sides; and mixing and shaking the enzyme solution to obtain the enzyme-driven Janus nanomotors. The method is simple, efficient, low-cost, and reusable. It does not require the use of large amounts of organic solvents, can be mass-produced, and is suitable for industrial production.

The invention relates to a method for predicting anisotropic thermal conductivity of a two-dimensional material nanobelt. The method comprises the following steps: (1) respectively establishing molecular dynamics thermal transport models of a graphene nanobelt and a black phosphorus nanobelt consisting of a hot area and a cold area; (2) executing molecular dynamics simulation and data processing: (1) comparing in-plane thermal conductivity data at different torsion angles to determine the in-plane thermal conductivity anisotropy of the two-dimensional material; (2) analyzing a phonon dispersion curve, and revealing a dependency relationship of in-plane thermal conductivity on a transmission direction; (3) researching the influence of different system lengths on the in-plane thermal conductivity; and (4) respectively calculating in-plane heat conductivity, heat flow and phonon number changes at different system temperatures, and analyzing the influence of the temperature on the in-plane heat conductivity and the internal mechanism of the in-plane heat conductivity by comparing the heat flow and in-plane heat conductivity changes at different system temperatures and combining a phonon scattering mechanism. According to the method, an optimization strategy is provided for thermal management of the nano device by analyzing thermal conductivity changes under different thermal transmission directions, system sizes and temperature conditions.

Disclosed are systems and methods for delivering and / or linking molecules, such as DNA, between tunable metal nanogaps and measuring electrical and / or optical properties. In one example, disclosed are high density multiplexed chips with a plurality of groups, each group including a plurality of nanodevices, the chips capable of coupling to one or more multiwell structures for providing samples to each individual group. In this way, the chips can be used for high-throughput analysis of molecules such as DNA.

The application provides a method for preparing a double-faced Janus nanomotor based on polyacrylic acid (PAA) constructed eccentric structure, and belongs to the field of nanodevices.The method comprises the following steps: preparing an eccentric structure by adjusting electrostatic adsorption and coordination bonding between spherical nanoparticles and PAA; and based on the eccentric structure, performing asymmetric modification on the surface of the spherical nanoparticles.The method has the advantages of simple preparation process, mild reaction condition and ability to realize macro-preparation, and helps to accelerate the industrialization process of the nanomotor, and the method can be expanded to various nanomaterial systems, thereby providing a new idea for the preparation of the double-faced Janus nanomotor.

The application provides a photothermal driving bowl-shaped polydopamine nanomotor and a preparation method thereof, and belongs to the technical field of micro-nano devices, wherein the photothermal driving bowl-shaped polydopamine nanomotor comprises a hollow bowl-shaped structure constructed by polydopamine, and the hollow bowl-shaped structure is obtained by removing polyacrylic acid nanoparticles after polydopamine is polymerized on one side of the polyacrylic acid nanoparticles to form a single-sided asymmetric structure. The photothermal driving bowl-shaped polydopamine nanomotor provided by the application has strong driving capacity, fast movement speed, and an easy-to-functionalize surface, and the preparation method is simple and can be used for macro preparation, so that the photothermal driving bowl-shaped polydopamine nanomotor has a wide application prospect in the fields of environmental governance, micro-nano processing and biological medicine.

Described herein is a novel nanostructured nucleic acid platform that uniquely integrates the advantages of disulfide moieties for enhanced cytoplasm uptake of DNA or RNA nanostructures ("DNA origami") that may further comprise a therapeutic agent and a targeting moiety. The targeting moiety may be an affinity, in particular a Her2 affinity. The disulfide moieties may be formed from sulfide modified oligonucleotides designed to target enhanced cytoplasm uptake.

The present invention proposes a device for obtaining physical parameters of low-dimensional nanodevices through photoelectric response, comprising: a light source for irradiating the low-dimensional nanodevice; a current detection unit for detecting the photocurrent generated by the low-dimensional nanodevice under different light intensities, and detecting the dark current generated by the low-dimensional nanodevice under no light source illumination; a light intensity and current relationship acquisition unit for acquiring the relationship between different light intensities and corresponding photocurrents; a parameter acquisition unit for fitting an existing formula for the relationship between light intensity and nanodevice photocurrent according to the light intensity and current relationship to obtain the values ​​of parameters #imgabs0# and #imgabs1#; and a calculation unit for calculating the physical parameters of the low-dimensional nanodevice according to the parameters and other existing formulas, wherein the physical parameters include minority carrier lifetime τ0, surface recombination velocity V srv , depletion region width, doping concentration and mobility.

The invention relates to the application field of two-dimensional materials and electronic functional devices, and provides a graphene double-side grid-controlled transistor and a preparation method thereof. The graphene double-side grid control transistor comprises a substrate; the substrate insulating layer is positioned on the surface of the substrate; the graphene grids are symmetrically distributed on the two sides of the step structure; the graphene contact electrode is connected with the top of the graphene grid electrode and is used for applying grid electrode voltage; the metal shielding layer is formed on the top of the step structure, a first insulating layer is formed between the graphene grid electrode and the metal shielding layer, and the first insulating layer is used for isolating the graphene grid electrode from the metal shielding layer; the second insulating layer covers the step structure; the conductive film channel covers the second insulating layer; and the source-drain metal electrode is positioned at two ends of the step structure and is used for outputting an electrical signal. The graphene double-side grid-control transistor is beneficial to enhancing the grid-control effect of a sub-nanometer device grid length device and improving the conduction performance, and keeps good compatibility with a miniature process of the sub-nanometer grid length device.

A microelectronic structure including a first nano device that includes a plurality of first transistors and a second nano device that includes a plurality of second transistors. The first nano device and the second nano device are parallel to each other. A double diffusion break that extends across the first nano device and the second nano device. A back-end-of-the-line (BEOL) layer located on a frontside of the first nano device and the second nano device. A backside interconnect located on a backside of the first nano device and the second nano device and the BEOL layer is connected to the backside interconnect through the double diffusion break.

The invention provides a method for regulating and controlling the size of mesoporous organic silicon dioxide nano-particles, and belongs to the field of nano device preparation, the method regulates and controls the size of the mesoporous organic silicon dioxide nano-particles by controlling the dosage of triethanolamine, and the method specifically comprises the following steps: dropwise adding triethanolamine into an aqueous solution in which a template agent is dissolved; dropwise adding TEOS (tetraethyl orthosilicate) and stirring for reaction; dropwise adding a mixture of BTESPD and TEOS into the reaction product, and stirring for reaction; and washing the obtained product and removing the template agent in the product. According to the method, the size of the mesoporous organic silicon dioxide nanoparticles can be regulated and controlled within the range of 40-130 nm by regulating and controlling the content of triethanolamine in a reaction system, the preparation method is simple, and the prepared product is uniform in morphology and particle size, has macro preparation potential and has a good application prospect.