Device for detecting density-dependent growth inhibition of cells and application thereof
A technology for growth inhibition and detection devices, which is used in biochemical cleaning devices, enzymology/microbiology devices, and microbial determination/inspection. The effect of accurate detection
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Embodiment 1
[0019] Take one plastic Petri dish with a diameter of 80 mm and set it aside.
[0020] Take transparent plastic with the same material as the plastic petri dish, make it into a cylinder whose bottom area is 2 / 3 of the bottom surface area of the petri dish, and the height is 2 / 3 of the height of the petri dish, and then divide the cylinder into 8 pieces along the center of the cylinder Fan-shaped volume wooden blocks, then 4 of them are made into inclined planes from the outer edge of the upper surface to the bottom, and the outer edge of the upper surface of the inclined plane has a distance of 0.8mm from the bottom surface of the petri dish, and the four building blocks with inclined planes are respectively Named A, B, C, D, the included angles formed by the bottom surface of the slope and the outer edge of the upper surface of the body are 15 degrees, 25 degrees, 32 degrees, 42 degrees (such as figure 2 shown). Divide the 8 fan-shaped volume blocks into two types accordi...
Embodiment 2
[0022] Take the cell density-dependent growth inhibition detection device prepared in Example 1, soak and disinfect it with 75% medical alcohol for more than 2 hours, rinse it three times with distilled water, dry it, put it in an ultra-clean workbench and irradiate it with ultraviolet rays for 30 minutes before use.
[0023] Take the experimental cells in the logarithmic growth phase (vascular endothelial cells, liver cancer cells, gastric cancer cells or embryonic lung fibroblasts) that grow on the wall, digest them and make a single cell suspension, and adjust the cell concentration to 10 7 ~10 8 pc / ml, add it to the cell culture observation area in the detection device in an amount that just covers the bottom surface, cover the above detection device, and place it in 5% CO 2 , in an incubator at 37°C and 100% relative humidity until the cells adhere to the wall, and then add culture medium to the culture dish, so that the amount of culture medium is 2 / 3 of the height of th...
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