A lysosome-targeted pH-sensitive nanoparticle and a preparation method and application thereof
A nanoparticle and lysosome technology, applied in the field of biomedicine, can solve the problems of inefficient aggregation of nanoparticles, poor tumor chemotherapy effect, low effective drug loading, etc., to achieve the best tumor chemotherapy effect, improve the aggregation degree and effectively The effect of drug loading and increasing lethality
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[0036] The following is further described in detail through specific implementation methods:
[0037] One, the preparation method of the lysosome-targeted pH-sensitive nanoparticles of the present invention, the specific steps are as follows:
[0038] (1) Preparation of silk protein liquid
[0039] Put the cocoon in Na 2 CO 3 Boil in sodium carbonate (0.02M) solution for 1h, then replace with fresh Na 2 CO 3 The solution was boiled again for 1 hour, and then the silkworm cocoons were soaked in deionized water, and the water was changed 4-5 times in the middle to wash off the sericin protein on the surface of the silkworm cocoon; then the degummed silk protein was dissolved in LiBr (9.2M) solution of lithium bromide at 60°C After 5 hours, transfer to deionized water and dialyze for 3 days to remove impurities and other ions, and finally filter and collect the silk protein liquid, freeze-dry for later use;
[0040] (2) Preparation of nanoparticles
[0041] Dissolve 5 mg of d...
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