36results about How to "The induction process is simple" patented technology

Provided in the present invention is a composition for promoting the transdifferentiation of fibroblasts into adipocytes, the onset factors thereof being a hepatocyte growth factor, epidermal growth factor, dexamethasone and insulin. Also provided in the present invention is a culture solution and a method for inducing the transdifferentiation of fibroblasts into adipocytes.

The invention discloses a film preparation process and a gas sensor preparation method related to the process, and relates to the technical field of sensor preparation. The thin film preparation process adopted in the present invention integrates spin coating-spray coating process. After combining the traditional spin coating process and spray coating process, it has the advantages of uniform film formation by spin coating process and morphology regulation and control by spraying process. At the same time, the uniformity of the film is guaranteed. The atomized solution droplets are immediately spin-coated as soon as they touch the substrate, which solves the erosion of the upper layer solvent on the lower layer film during the solution method film preparation process, and forms a film with better uniformity. The independent spin-coating of droplets makes the organic semiconductor layer produce more grain boundaries, which effectively enhances the interaction between the gas to be measured and the organic semiconductor, and realizes the high-sensitivity detection of the gas to be measured by the device. At the same time, more grain boundaries are conducive to the diffusion of the gas. The recovery characteristics of the device are improved.

The invention discloses a temperature sensor based on an organic field effect tube and a preparation method thereof. The temperature sensor is a bottom-gate top-contact structure, and the temperature sensor is sequentially composed of a substrate, a biodielectric layer, and a doped semiconductor from bottom to top. A layer and an encapsulation layer, the biodielectric layer has a gate electrode on the upper surface of the substrate, the upper surface of the doped semiconductor layer is respectively provided with a source electrode and a drain electrode, and the doped semiconductor layer The material is a hybrid material composed of pectin and biosemiconductor materials. The extracted pectin works synergistically with bio-semiconductor materials and is sensitive to temperature; when mixed with bio-semiconductor materials and pectin, when the temperature changes, the electrical conductivity will change greatly, which will cause changes in the mobility and contact resistance of semiconductor materials, thereby Its electrical properties have changed greatly, and it is easier to sense the temperature of the outside world, which improves the temperature sensing response of the organic field effect tube, and realizes the highly sensitive and high-response detection of the device for temperature.

The invention provides a radix pseudostell adventitious root induction method and a radix pseudostell adventitious root tissue culture method of the medicinal technical field, which comprises that (1) a poisoned radix pseudostell explant is cancelled, and is inoculated on a callus tissue induction culture base after being cut under the bacteria-free condition, and the callus tissue is induced under the bacteria-free light-free condition; (2) the callus tissue that is grown fast with light-yellow color is fetched to be arranged on a 1 / 2MS solid culture base comprising one or more plant hormones of the seradix, the rhodofix and the kinetin to be induced to form a adventitious root under the bacteria-free light-free condition; (3) liquid culture of the radix pseudostell adventitious root-theobtained adventitious root is arranged in a 1 / 2MS liquid culture base comprising one or more plant hormones of the seradix, the rhodofix and the kinetin to be cultivated. The method of the inventionis simple and the efficiency is high; the adventitious root induction rate of the explant of the stem and the leaves of the radix pseudostell reaches more than 90 percent. The adventitious root growsfast with less inoculation and the growth rate can reach more than 46 times after being cultured in a bottle for 18 days.

The invention discloses a photosensitive sensor based on an organic field effect transistor and a preparation method thereof. The preparation method includes: cleaning and drying a substrate; using metal nanowires, after cleaning and drying the substrate The gate electrode is prepared on the surface of the gate electrode; the organic dielectric material is ultrasonically proportioned in proportion, and then a dielectric layer is prepared on the gate electrode with the proportioned solution; the organic semiconductor material and chlorophyll are ultrasonically mixed in proportion, and then Using the mixed solution, a semiconductor layer is prepared on the dielectric layer; metal nanowires are used to prepare source and drain electrodes on the semiconductor layer; and shellac is used to prepare an encapsulation layer on the source and drain electrodes. The invention prepares the semiconductor layer of the photosensitive sensor by using the mixed material of organic semiconductor material and chlorophyll, so that the prepared photosensitive sensor has the characteristics of high responsivity and high stability compared with the traditional photosensitive sensor.

The invention discloses a vehicle-mounted intelligent POS machine fixing device, which comprises a casing, the top and the bottom of the casing are connected to each other, the top of the casing is designed with a funnel-shaped opening, a supporting plate is hinged on one side of the bottom of the casing, and the supporting plate and the casing The included angle at the bottom of the body is an acute angle, and the included angle remains unchanged. The top of the support plate is provided with a first storage slot, and a movable plate is arranged in the first storage slot; When the top of the body is put into the housing, the bus card moves downward under the action of gravity. When the bus card passes through the card swiping area of ​​the POS machine, it is sensed by the POS machine, and the card swiping operation is completed. At this time, the bus card falls on the movable board. The movable plate will be pressed to enter the first storage slot. When the top of the movable plate and the supporting plate are flush, the bus card will slide out of the casing along the surface of the supporting plate towards the card outlet due to gravity, realizing the quick card swiping. At the same time, it avoids the occurrence of the bus card falling off from the hand due to crowdedness.

The Halymenia seedling culturing process with Halymenia callus includes inducing in specific conditions to produce filamentous callus; separating the callus and controlling lighting, temperature, nutritive salt and other conditions to realize the secondary culture and maintenance of callus; suspending culture of the callus for fast amplification; spraying the suspension cultured callus to attaching medium for quiet water culture and subsequent flowing water culture after attachment; and altering the culture conditions to induce regeneration to form new seedling. The said Halymenia seedling culturing process is effective, has no character segregation and is favorable to fine variety breeding.

A solid-state image sensor capable of suppressing deterioration of a transfer efficiency of electrons is provided. The solid-state image sensor comprises a first conductive type first impurity region that can store electrons and holes; a second conductive type second impurity region that is formed so as to have a region where the first and second impurity regions overlap one another; and a transfer electrode that is formed to overlie and extend at least from the first impurity region to the region where the first and second impurity regions overlap one another.

The present invention provides a method for culturing rapamycin-induced regulatory γδT cells, which uses multiple cytokines combined with macrolide immunosuppressant rapamycin to induce human peripheral blood-derived mononuclear cells in vitro Expansion, and a large number of regulatory γδT cells were cultivated. The whole induction, amplification and enrichment process of the present invention is simple and has strong feasibility; the present invention has short cell culture cycle and low cost; high induction efficiency and good repeatability, and can be applied in regulatory γδT cell culture. The regulatory gamma delta T cells induced by the invention have good vigor and strong immunosuppressive function, which can ensure further research in the future and have good popularization value.