81results about How to "Ease of commercialization" patented technology

The present invention discloses a preparation method of graphitized carbon nano material which relates to a preparation method of carbon nano material. Problems like high cost and environment pollution in existing graphitized carbon nano material process are solved through the invention. The method is as following: 1. pretreatment of carbon source; 2. energizing agent in solvent and carbon source after pretreatment; 3. pre-carbonization; 4. heat treating; 5. acid treatment; 6. physical activation or chemical activation. The invention has features like simple process, little pollution to environment, low cost, simple equipment and easy commercialization.

The invention discloses a preparation method of ordered mesoporous titania/silver photocatalyst, relating to a preparation method of titania/silver and aiming to solve the technical problems of small specific surface area, poor orderliness and low photocatalytic activity of mesoporous titania/silver photocatalyst prepared by prior arts. The preparation method comprises the steps of silver solution preparation, titanium precursor preparation, titania/silver gel preparation, and heat treatment. The inventive photocatalyst has specific surface area of 120-160 m<2>/g, has the advantages of uniform mesopores and high catalytic activity; can be applied to photocatalysis field, and water treatment field of lake, ocean, municipal sewage and industrial sewage.

The invention relates to a preparation method of a sequential black mesoporous titanium dioxide visible light catalyst film. The invention aims to solve the problems that titanium dioxide prepared by the existing method cannot effectively absorb visible light of sunlight and a surface-hydrogenated titanium dioxide (black titanium dioxide) catalyst is difficult to recover. The preparation method is implemented by the following steps: 1, soaking: soaking a porous ceramic film into titanium dioxide sol; 2, drying: drying at the temperature of 60 to 90 DEG C for 12 to 24 hours to obtain a porous ceramic film of the titanium dioxide sol; 3, performing heat treatment: maintaining the temperature of 400 to 800 DEG C for 2 to 8 hours to obtain the porous ceramic film of the titanium dioxide sol after heat treatment; and 4, hydrogenating: hydrogenating for 2 to 10 hours under the condition of protective gas to obtain the sequential black mesoporous titanium dioxide visible light catalyst film. The preparation method of the sequential black mesoporous titanium dioxide visible light catalyst film is applied to the field of water treatment.

The invention relates to a preparation method and application of an electrochemical sensor for detecting a blood concentration level of an insulin sensitivity reduction early diagnosis biomarker, namely galectin-3 (Gal-3), causing type II diabetes, and belongs to the technical field of electrochemical detection. The preparation method is characterized by comprising the following steps: respectively synthesizing an N-GNRs-Fe-MOFs@AuPNs sensor substrate modified nano composite material and an AuPt-MB nano composite signal material, enabling a detection antibody capable of being in specific binding to the Gal-3 to be mixed with the AuPt-MB composite material so as to prepare a biological signal probe; conjugating a Gal-3 specific capture antibody on a substrate platform modified by the N-GNRs-Fe-MOFs@AuPNs composite material so as to conveniently and specifically capture a target Gal-3; finally, performing specific binding on the Gal-3 as well as the detection antibody and the capture antibody, thereby obtaining the electrochemical sensor for detecting the blood concentration level of the Gal-3. The sensor is successfully used for detecting the Gal-3 in serum. The electrochemical sensor disclosed by the invention has the advantages of being high in sensitivity, high in specificity, rapid in detection and convenient. An early diagnostic basis is provided for insulin resistance causing the type II diabetes.

The invention discloses a specific hypersensitive sandwich electrochemical immunosensor based on a novel reduced graphene oxide tetraethylenepentamine-thionine-gold nanoparticle (rGO-TEPA-Thi-Au) composite material and ruthenium-palladium-platinum trimetallic nanoparticles (RuPdPt TNPs). The specific hypersensitive sandwich electrochemical immunosensor is used for detecting a monocyte chemoattractant protein-1 (MCP-1) in human serum. Reduced graphene oxide tetraethylenepentamine (rGO-TEPA) contains a large amount of amino groups and significantly accelerates electron transfer. Thionine (Thi) molecules increase the adsorption capacity of negatively charged AuCl4<-> ions. Gold nanoparticles (AuNPs) in a nanocomposite can provide active sites for immobilization of biological materials. In addition, the RuPdPt TNPs have excellent catalytic properties for the reduction of H2O2, and Pt-NH2 can effectively capture antibodies. The specific hypersensitive sandwich electrochemical immunosensor has the advantages that the linear range is wide, sensitivity is high, specificity is high, detection is rapid, good reusability is achieved, and the specific hypersensitive sandwich electrochemical immunosensor can be used for measure the MCP-1 content in the human serum, and has great potential in clinical testing.

The invention discloses a preparation method and application of three-dimensional multi-dimension porous crystal titanium carbide, relates to a preparation method and application of crystal titanium carbide, and aims to solve the problem that existing two-dimensional crystal titanium carbide is liable to stack, and especially has low mass specific capacitance when the mass is relatively large. Themethod comprises the following steps: I, preparing a two-dimensional layered titanium carbide nanosheet; II, calcining to obtain the three-dimensional multi-dimension porous crystal titanium carbide.The mass specific capacitance of the three-dimensional multi-dimension porous crystal titanium carbide prepared by the method is about 129F/g when the mass is 10mg. By adopting the preparation method, the three-dimensional multi-dimension porous crystal titanium carbide can be obtained.

The present invention provides a compact three-dimensional wavelength division multiplexing/demultiplexing device and an implementation method thereof. The compact three-dimensional wavelength division multiplexing/demultiplexing device comprises a microring resonator, a micro-strip metal coil, and two bar-type strap straight waveguides arranged at two sides of a nonreciprocal microring resonator,coupled with the microring resonator and configured to perform optical signal input/output; the two ends of the two bar-type strap straight waveguides are respectively provided with first, second, third and fourth optical signal output/input ports, and uniform waveguide Bragg reflection gratings are etched at the second port; the microring resonator comprises a microring bending waveguide and a magnetic rotary medium arranged at the inner wall of the microring bending waveguide, and an external static magnetic field required by work of the magnetic rotary medium around the current passing through in the metal coil is generated. The current direction in the metal micro-strip metal coil is changed to achieve the switching of the system between the three-dimensional wavelength division multiplexing device and the demultiplexing device. The compact three-dimensional wavelength division multiplexing/demultiplexing device and the implementation method thereof are simple in structure, high in isolation, low in power loss, little crosstalk, compact and convenient to integrate, can achieve large-scale optical waveguide integration, can perform batch production to reduce the cost and is easy to promote and apply.

The invention relates to a preparation method for an aptamer biosensor for T-2 toxin detection in food or feed and application, which belong to the technical field of electrochemical detection. The method is characterized by comprising steps: a gold nanorod (Au NRs) material is firstly synthesized and obtained; platinum is then reduced on the gold nanorods to form gold platinum nanorods (Au@PtNRs), through combination with reducing graphene oxide-tetraethylenepentamine (rGO-TEPA), increasing of an immobilization amount is realized, and the signal amplification ability is improved; then, through combination with single-stranded DNA signal probe, a biosignal probe is thus prepared; and finally, through fixing of molybdenum disulfide-polyaniline-chitin-gold nanoparticle composite material anda DNA capture probe, an aptamer biosensor for T-2 toxin detection is thus prepared. The sensor is successfully applied to trace detection of T-2 toxin in food or feed. The method has the advantages that the limitation of a T-2 toxin small molecule substance is broken through, and through introducing a nucleic acid aptamer, T-2 toxin high-sensitivity and high-specificity trace detection can be realized, and a simple and quick new strategy is provided for mycotoxin detection.

The invention provides an erbium-doped fluoride fiber laser device and a laser generation method. The laser device comprises at least one pump laser device, a beam combiner, a first fiber bragg grating, a second fiber bragg grating, a double-cladding erbium-doped fluoride fiber, a third fiber bragg grating and an AlF3 end cap. The laser device is advantaged in that 1.6 mu m laser is constrained bya second optical resonant cavity formed by the first fiber bragg grating and the third fiber bragg grating, finally, absorbed and pumped to an energy level 4I9/2 by an excited state energy level 4I13/2 of the erbium ions, through multi-phonon relaxation, the energy level is returned to 4I11/2, particles with the energy level of 4I11/2 can be transited to the energy level of 4I13/2 through the pump light to generate 2.8 mu m laser, the laser of 1.6 mu m is not only recycled, but also particles on the energy level 4I13/2 are recycled, the oscillation self-termination effect of the laser of 2.8mu m is reduced, and the energy utilization rate of the laser device is greatly improved.

The invention discloses a direct-view type method and device for generating any column vector polarized light based on a vortex half-wave plate, a light beam emitted by a laser device becomes horizontal line polarized light after passing through a horizontal polarizer, the light beam is amplified after passing through a beam expander, the polarization direction of the linear polarized light is adjusted through a rotatable first [lambda]/2 wave plate, a cylindrical vector polarized light beam is generated after passing through the vortex half-wave plate, multiple types of cylindrical vector light beams can be achieved by rotating the first [lambda]/2 wave plate, and at the moment, the types of the cylindrical vector light beams can be increased by the light beam through the rotatable second [lambda]/2 wave plate. A first [lambda]/4 wave plate and a combination of a second [lambda]/4 wave plate and a second vortex wave plate are arranged in the device, vortex light beams and cylindrical vector vortex light beams can be generated respectively, in addition, through the combination of vortex half-wave plates, a novel vortex half-wave plate can be generated, and then more cylindrical vector light beams are generated. Any column vector light beam can be generated by rotating and placing the wave plate, the structure is simple, light reflection and deflection do not exist, and energy utilization and conversion rate are high.

The invention discloses a technology for enabling passengers to get on and get off a train without stopping in a station. According to the technology, a main train 1, a get-off carriage 2, a get-on carriage 3, a winch 4, a steel cable 5, a lantern ring 6, a bracket 7, a traction column 8, a connecting rod 9, a main lane 10 and an auxiliary lane 11 are mainly utilized; the get-off carriage at the tail of the main trail is disconnected with the main train before the train gets into the station, and enters a stop platform at the auxiliary lane by virtue of inertia so as to ensure that passengers can get off; passengers, having tickets checked and getting in the station, sit in the get-on carriage stopped at the auxiliary lane in advance, and the lantern ring extending out of the tail of the main trail sleeves a connecting rod extending out of the get-on carriage and slides onto the traction column when the main train enters the station from the main lane and puts over the get-on carriage; the steel cable connected with the lantern ring is released at a variable speed from the winch fixed to the tail of the main train, the get-on carriage is immediately pulled into the main lane by the steel cable, moves forward at a gradual increasing speed until the speed is the same as that of the main train, finally approaches the main train and is connected with the main train, and passengers are dispersed to each carriage of the main train, so that a task of enabling the passengers to get on and get off the train without stopping in the station is realized.

The invention relates to a preparation method of a renewable electrochemical immunosensor which can be used for predicting and diagnosing a biomarker of acute coronary syndrome, namely a soluble CD40ligand (sCD40L), which belongs to the technical field of electrochemical detection. The method provided by the invention comprises the steps that a carboxyl-functionalized multi-walled carbon nanotube-polyethyleneimine-gold nanoparticle nanocomposite (c-MWCNTs-PEI-AuNPs) is used as a substrate material for immobilizing an sCD40L antibody, so as to capture the sCD40L; and then the sCD40L is quantitatively detected. Since the c-MWCNTs-PEI-AuNPs nanocomposite has the advantages of simple preparation, good electrical conductivity, good stability and large specific surface area, the nanocomposite can firmly immobilize a large number of antibodies and utilizes specific recognition of antibodies and antigens. The constructed electrochemical immunosensor has strong specificity. The method providedby the invention has the advantages of high sensitivity and specificity, convenience, quickness and regenerability, provides a new method for detecting the sCD40L, and provides useful information forclinical prediction and diagnosis of acute coronary syndrome.