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      2. west china medical publishers
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        find Author "ZHUANG Juhua" 1 results
        • Experimental Study on the Synthesis of Organism Carrier Disulfide Cross-linked Polyethylenimines and Its Delivering Ability for Small Interfering RNA

          目的 合成可生物降解的基因載體,并分析其生物毒性及轉染率。 方法 低分子量聚乙烯亞胺(PEI)通過雙硫鍵交聯合成可降解的高分子量PEI衍生物(SS-PEI),通過紅外光譜和核磁波譜分析技術分析其化學結構,采用細胞活力實驗和檢測大鼠肝腎功能指標分析其細胞和體內毒性,并轉染羥基熒光素修飾的siRNA(FAM-siRNA)分析細胞轉染率。 結果 紅外波譜和核磁波譜分析可見酰胺鍵的特征波譜,噻唑藍法和肝腎功能指標顯示SS-PEI不同劑量組與對照組的差異均無統計學意義(P>0.05),SS-PEI/FAM-siRNA轉染率為(76.0 ± 2.8)%。 結論 SS-PEI的合成可明顯提高裝載siRNA的效率,具有安全、高效等特點。

          Release date:2021-06-23 07:35 Export PDF Favorites Scan
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          2. 射丝袜