通过逆微乳液聚合制造产生的聚合物纳米凝作为潜在的基因和反意义传递剂
Karen McAllister1, Peter Sazani, Mirielle Adam
1Department of Chemistry, Campus Box 3290, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA.
Journal of the American Chemical Society
|December 19, 2002
概括
研究人员开发了生物相容的纳米凝用于基因和反意义传递. 这些纳米凝显示出增强细胞吸收和稳定性的潜力,为基因疗法提供了有前途的工具.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术纳米技术
- 分子生物学分子生物学
背景情况:
- 基因和反感传递对于治疗应用至关重要.
- 开发高效和安全的交付媒介仍然是一个挑战.
- 聚合物纳米凝具有作为生物相容载体的潜力.
研究的目的:
- 为细胞基因和反意义传递合成和表征聚合物纳米凝载体.
- 评估纳米凝的物理化学特性和生物相容性.
- 评估纳米凝-DNA复合体在基因传递中的有效性.
主要方法:
- 对纳米凝合成的逆微乳液聚合.
- 使用NMR,光散射,TEM和AFM进行表征.
- 在体外评估细胞活力,吸收和复合稳定性.
主要成果:
- 单分散的非离子和阴离子纳米凝 (40-200nm) 已成功合成.
- 纳米凝在水性介质中表现出极好的稳定性和低细胞毒性.
- 阴离子纳米凝与寡核酸形成稳定的复合体,增强细胞吸收.
结论:
- 开发的纳米凝是基因和反意义传递的有希望的生物相容载体.
- 控制合成允许可调节的纳米凝属性.
- 需要对体内应用进行进一步的研究.
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