基于分子识别的DNA纳米组件在纳米外体表面
Shuo Wan1, Liqin Zhang1,2, Sai Wang1
1Center for Research at Bio/Nano Interface, Department of Chemistry and Department of Physiology and Functional Genomics, UF Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida , Gainesville, Florida 32611-7200, United States.
Journal of the American Chemical Society
|March 24, 2017
概括
研究人员开发了一种新的DNA纳米技术,用于修改外体,从而实现有针对性的传递和功能化. 这种基于aptamer的方法为医学和诊断中的exosome应用提供了更简单,更通用的方法.
科学领域:
- 生物技术
- 纳米技术
- 细胞生物学
背景情况:
- 外体是细胞外囊泡, 对于细胞间的交流至关重要.
- 它们的纳米载体特性对药物输送和神经测试有价值.
- 目前的外体表面修饰方法复杂且有限.
研究的目的:
- 开发一种新的,高效的外体表面功能化方法.
- 创建基于aptamer的DNA纳米组件以进行针对性的外体修饰.
- 在外体上展示DNA纳米结构的选择性组装.
主要方法:
- 使用基于aptamer的DNA纳米组件进行in situ外体表面修饰.
- 采用DNA吸收体和外体表面标记物之间的分子识别.
- 通过合酶触发引发的杆DNA杂交链反应.
主要成果:
- 在外体表面成功组装DNA纳米结构.
- 从目标细胞中获得的外体上被证明具有选择性组合.
- 展示了修改这些纳米有机体的可行性.
结论:
- 开发了一种简单有效的DNA纳米技术,
- 这种基于aptamer的方法可以对外体进行有针对性的修改.
- 该方法具有重要的生物医学和生物分析应用潜力.
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