High-efficiency biogum sealant and uses thereof
A technology of biological glue and sealing agent, applied in the field of biomedicine, can solve the problems of high product cost, high price, easy to bring safety, etc., achieve high reliability and safety, simple preparation process, and avoid the effect of spreading opportunities
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Embodiment 1
[0030] Embodiment 1 main body gel freeze-dried powder preparation one
[0031] Collect 55000ml of pig blood, add 6000ml of anticoagulant containing 0.147mol / L sodium citrate and 0.154mol / L sodium chloride, let it stand in a low-temperature storage at 4°C for 6 hours, let it separate into layers, and absorb the upper layer by siphon method Plasma, the lower layer of red blood cells was discarded; the upper layer of plasma was centrifuged in a high-speed refrigerated centrifuge at 10°C at a speed of 3200 rpm for 40 minutes, the plasma was collected, and filtered with a 0.22 μm filter membrane; 20,000ml of filtered plasma was taken, and 73.5g of glycine was added , to make it dissolve, cool the plasma to 4°C, add 2605.4g of sodium acetate to dissolve it, stir for 30 minutes, centrifuge at 3500 rpm for 40 minutes in a high-speed refrigerated centrifuge at 10°C, collect the precipitate, and obtain 2520.8g of precipitate . Crush the collected precipitate, add 33 liters of a buffer ...
Embodiment 2
[0032] Embodiment 2 main body gel freeze-dried powder preparation two
[0033] Collect 50000ml of pig blood, add 5700ml of anticoagulant containing 0.151mol / L sodium citrate and 0.148mol / L sodium chloride, let it stand in a low-temperature storage at 4°C for 8 hours, let it separate into layers, and absorb the upper layer by siphon method Plasma, the lower layer of red blood cells was discarded; the upper layer of plasma was centrifuged in a high-speed refrigerated centrifuge at 10°C at a speed of 5,000 rpm for 30 minutes, the plasma was collected, and filtered with a 0.22 μm filter membrane; 18,000ml of filtered plasma was taken, and 86.5g of glycine was added , to make it dissolve, cool the plasma down to 2°C, add 3024.8g of sodium acetate to dissolve, stir for 30 minutes, centrifuge at 4000 rpm for 30 minutes in a high-speed refrigerated centrifuge at 10°C, collect the precipitate, and obtain 2490.8g of precipitate . Crush the collected precipitate, add 32 liters of a buff...
Embodiment 3
[0034] Embodiment 3 main body gel freeze-dried powder preparation three
[0035]Collect 60000ml of pig blood, add 6000ml of anticoagulant containing 0.145mol / L sodium citrate and 0.151mol / L sodium chloride, let it stand in a low-temperature storage at 5°C for 6 hours, let it separate into layers, and absorb the upper layer by siphon method Plasma, the lower layer of red blood cells was discarded; the upper layer of plasma was centrifuged at 5,000 rpm at 10°C for 60 minutes in a high-speed refrigerated centrifuge, the plasma was collected, and filtered with a 0.22 μm filter membrane; 22,000ml of filtered plasma was taken, and 95.8g of glycine was added , to make it dissolve, cool the plasma down to 3°C, add 2931.8g of sodium acetate to dissolve it, stir for 30 minutes, centrifuge at 6000 rpm for 30 minutes in a high-speed refrigerated centrifuge at 10°C, collect the precipitate, and obtain 2685.8g of precipitate . Crush the collected precipitate, add 35 liters of a buffer solu...
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