30results about How to "Change the microenvironment" patented technology

The invention discloses a high-throughput microfluidic chip and a cell analysis device and method. The high-throughput microfluidic chip comprises a cell observation pool, a stimulant channel, a cell introduction channel, a buffer solution channel and a waste liquid channel, wherein the stimulant channel is connected with the opening of the cell observation pool, the cell introduction channel is connected with the side face of the cell observation pool, the connecting site is close to the opening, the buffer solution channel is connected with the bottom of the cell observation pool, and the waste liquid channel is connected with the opening of the cell observation pool. The cell analysis device comprises the high-throughput microfluidic chip, a signal collection device and electric proportional switching valves, and the channel inlet end of the high-throughput microfluidic chip is connected with independent electric proportional switching valves; the signal collection device is arranged at the cell observation pool and is used for collecting cell signals or imaging cells. The analysis method comprises the following steps: capturing cells, stimulating cells and releasing cells. The chip, the device and the method provided by the invention can be used for achieving high-throughput cell stimulation and analysis in multiple modes.

The invention relates to an external traditional Chinese medicine composition and preparation for treating nodular type acnes and a preparation method thereof. The composition comprises the following raw materials in parts by weight: 5-10 of nagkassar seeds, 10-25 of bark of magnolia, 10-20 of Chinese angelica, 20-30 of cajeput leaves, 10-20 of alfalfa, and 5-10 of motherwort. The traditional Chinese medicine extract provided by the invention has the advantages of eliminating causes of disease causing arcane inflammation by controlling bacteria breeding on the one hand and improving skin quality by controlling sebum secretion and conditioning the water-oil balance of skins on the other hand; and more importantly, the traditional Chinese medicine extract can improve skin microcirculation, change skin microenvironment and fundamentally eliminate nodular type acne cyst, acne marks and scars.

The invention discloses a cultivation method for rice direct dibble seeding in wedged ditches, which belongs to the field of rice cultivation. In order to solve the problem that yield potential of high-yield high-quality varieties is difficult to fulfill by existing cultivation methods, the cultivation method for rice direct dibble seeding in wedged ditches includes the steps: firstly, tilling soil, namely performing no turning or irrigation after preceding harvesting, and digging a field to obtain a plurality of ditches, wherein row spacing between each two adjacent ditches is 18-22cm, each ditch in a triangular shape is wide end up, each ditch is 5-20cm deep and 3-6cm wide, two sides of each ditch are slopes relative to the horizontal plane, and an included angle between each slope and the horizontal plane is 40 DEG-70 DEG; secondly, post-treating rice seeds; thirdly, performing base fertilizer application, direct dibble seeding, and irrigation; and fourthly, performing field management. The traditional ploughing is replaced with wedging, so that farming intensity is reduced, interference to soil is lowered, energy sources are saved, labor is reduced, seeds for use are few, soilwater retention capacity is high, soil system stable is high, fertilizer utilization rate is high, root system growth environment is improved, and cost reducing, yield increase and efficiency enhancement are achieved.