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          DSPE-PEG-Angiopep-2的合成
          發(fā)布時(shí)間:2025-06-27     作者:zyl   分享到:


          Synthesis of DSPE-PEG-Angiopep-2

          To synthesize DEPE-PEG-Angiopep-2, 5 mg of DSPE-PEG-Mal was completely dissolved in 10 mL of water. Then, 6 mg of Angiopep-2-cys was added to the solution, and the mixture was stirred at 37°C for 12 hours. The solution was dialyzed (MW3500) to remove excess Angiopep-2-cys. The resulting purified product, DSPE-PEG-Angiopep-2, was then freeze-dried and stored at ?20°C for subsequent usage.

          DSPE-PEG-Angiopep-2

          DSPE-PEG-Angiopep-2的合成

          為了合成DEPE-PEG-Angiopep-2,將5mg DSPE-PEG-Mal完全溶解在10mL水中。然后,向溶液中加入6mg Angiopep-2-cys,并將混合物在37°C下攪拌12小時(shí)。將溶液透析(MW3500)以去除多余的Angiopep-2-cys。然后將所得純化產(chǎn)物DSPE-PEG-Angiopep-2冷凍干燥并儲(chǔ)存在-20°C下以備后續(xù)使用。

          CG/SN-38納米粒子(NP)的制備與之前報(bào)道的相同,但經(jīng)過(guò)了修改。G和1 mg SN-38溶解在20μL DMSO中,然后向溶液中加入1 mL水,然后超聲處理5分鐘。將制劑用蒸餾水(1L)透析(MW3500)12小時(shí)。然后,將NP溶液與一定量的巨噬細(xì)胞膜超聲2分鐘,以獲得巨噬細(xì)胞膜/IGC/SN-38(M-NP)。此外,通過(guò)超聲處理(400 W,2 s開(kāi)/3 s關(guān),2 min)M-NP和預(yù)先制備的100μg DSPE-PEG-Angiopep-2,獲得1 mL Angiopep-2修飾的M-NP(AM-NP)。

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