47results about How to "Suitable for commercial mass production" patented technology

The invention relates to a preparation method of cephalosporin, particularly to a preparation method of cefditoren pivoxil. 7-amino-3-[(Z)-2-(4-methyl-5-thiazolyl) vinyl]-3-cephem-4-carboxylic acid and 2-(2-amino-4-thiazolyl)-2-methoxyiminoacetic are taken as initial raw materials, and the cefditoren pivoxil is obtained through condensation and esterification reactions. The method is simple in process, high in yield, free of highly corrosive solvents and suitable for industrial production.

The invention provides a top-emitting QLED device, comprising a substrate, a patterned pixel electrode, an electron transport layer, a quantum dot light-emitting layer, a hole transport layer, a hole injection layer and an anode arranged in sequence, the electron transport layer and the A transport intermediate layer is stacked between the quantum dot light-emitting layers, an insulating layer with an array structure is provided between the pixel electrodes of the patterned pixel electrodes, and the insulating layer penetrates the electron transport layer and the transport intermediate layer connected, and the transmission intermediate layer and the insulating layer are both made of PMMA material; on the transmission intermediate layer and corresponding to the insulating layer, isolation columns for isolating quantum dot materials of different colors are provided.

The invention discloses a recombinant Lawsonia intracellularis Hsp60 protein monoclonal antibody and its application. The heavy chain variable region of the monoclonal antibody includes HCDR1, HCDR2 and HCDR3, and its amino acid sequences are respectively shown in SEQ ID NO.1 , shown in SEQ ID NO.2 and SEQ ID NO.3; the light chain variable region of the monoclonal antibody includes LCDR1, LCDR2 and LCDR3, and its amino acid sequences are as shown in SEQ ID NO.4, SEQ ID NO.5 and Shown in SEQ ID NO.6. The recombinant Lawsonia intracellularis suis Hsp60 protein monoclonal antibody prepared by the present invention has high purity, good specificity and high sensitivity, and has no cross-reactivity with other intestinal pathogenic bacteria, can be used for ELISA and IFA detection, and is useful for clinical LI diagnosis It is of great significance to research and develop laboratory LI diagnostic technology.

The invention provides a vertical LED structure and a manufacturing method thereof. The manufacturing method comprises the following steps: cutting an epitaxial layer into a plurality of insulated and separated independent light emitting semiconductor layers through the ion implantation technique to replace the traditional complex processes of firstly manufacturing an isolation groove and then filling an insulated material, forming an independent contact layer on each independent light emitting semiconductor layer, then forming a net-shaped-structure DBR reflection layer on each independent contact layer to replace a silver specular reflection layer, and then forming an independent metal function layer on the net-shaped-structure DBR reflection layer. According to the invention, the net-shaped-structure DBR reflection layer is arranged on the independent contact layer to replace the silver specular reflection layer, and the cheap independent metal function layer is arranged on the net-shaped-structure DBR reflection layer, the production cost of an LED is reduced while the problems of brightness improvement and heat dissipation are solved, and the manufacturing method is suitable for large-scale commercialized production.

A preparation method and application of a hydrogel-modified highly stable carbon-based holographic disc relates to the field of information storage technology, and solves the problem of a preparation method for a storage medium with high information storage stability and high diffraction efficiency, including in Prepare a porous titanium dioxide film on a disc-shaped glass substrate; immerse in a carbon quantum dot solution to load the porous titanium dioxide film with carbon quantum dots to obtain a carbon quantum dot / titanium dioxide composite film; immerse in a silver nitrate solution and prepare by irradiating with an ultraviolet lamp Silver / carbon quantum dots / titanium dioxide composite film; a layer of hydrogel is attached by pulling dipping method. The preparation method of the present invention is convenient and reliable, low in cost, and suitable for commercial mass production, and the prepared optical disk has the performance advantages of high stability, high efficiency and high uniformity of information storage, which makes holographic optical storage stand out in the field of future data storage. Possibly, it can be well applied to the field of holographic data storage.

The invention belongs to the technical field of pharmaceutical preparations, and in particular relates to a sildenafil citrate chewable tablet and a preparation method thereof. The sildenafil citrate chewable tablet comprises sildenafil citrate, filler, excipient, sweetener, lubricant and compound flavoring agent. The present invention hides the taste of sildenafil citrate through repeated dry granulation; it can be taken without water, and the patient compliance is high; at the same time, it can effectively increase the storage stability of sildenafil citrate chewable tablets .

The invention provides a preparation of a digital PCR chip and a modification method thereof. The preparation method comprises the following steps: selecting a silicon material as a chip base layer; polishing a single surface of the chip base layer, embedding a high polymer material into the polished surface of the chip base layer, and removing a protective film on the surface of the high polymermaterial to form a high polymer material panel; baking the high polymer material panel in the above step, and exposing on an exposure machine to form a densely arranged pattern array of reaction micropores on the surface; soaking the densely arranged pattern array obtained in the step 3 in a developing solution, and then drying the densely arranged pattern array; and scribing the high polymer material panel dried in the above step to complete the preparation of the digital PCR chip. The modification method comprises the following steps: carrying out plasma treatment on the digital PCR chip through a plasma machine, and then carrying out digital PCR reaction. The problems that in the prior art, a digital PCR chip is complex in machining process, high in cost, low in chip flux, easy to use and the like are solved.

The invention relates to a method for preparing an upright Au nanocone with high adhesion to the surface of a substrate. A large number of nanoscale corrosion holes are etched on the surface of a silicon wafer; Au is evaporated on the surface of a silicon wafer, and further annealed in the etching process. A large-scale Au-Si binary alloy welding point is formed at the Au-Si interface in the hole as the nano-sized clamping end; Au nanocones are prepared on the Au foil and the Si surface by mechanical separation. This structure significantly improves the binding force between the Au nanocones and the substrate, and provides a new technical means for improving the device stability and service life of SERS detectors and solar cells. The design and preparation process of the invention has no special requirements, easy operation and simple equipment requirements, and is especially suitable for commercial large-scale production.

The invention relates to a wet etching-based preparation method for a light trapping structure with Ag nanowires embedded into a silicon surface. The preparation method comprises the following steps of effectively dispersing the Ag nanowires in an ethanol solution by a low-power ultrasonic dispersion means; uniformly coating the dispersed Ag nanowires on a surface of a silicon wafer by a spin-coating mode; and improving contact between the Ag nanowires and the silicon wafer by an annealing mode. By etching of an etching liquid, the Ag nanowires are embedded into the silicon surface to prepare a novel light trapping, resistance reduction and efficiency improving structure. By the structure, the contact area between the Ag nanowires and the silicon surface is remarkably expanded, and meanwhile, the light trapping capability of the Ag nanowires in silicon is greatly improved within a visible light spectral range. The design and the preparation process provide a novel technical means for improving the efficiency of a device such as a silicon thin film solar cell and an LED.