结合性共聚物和DNA的互聚电解质复合物:为多色生物传感器提供平台
1Department of Chemistry, Institute for Polymers and Organic Solids, University of California, Santa Barbara, California 93106, USA.
Journal of the American Chemical Society
|February 20, 2004
概括
联聚合物的链间相互作用改变了辐射颜色. 这种聚合物系统可以检测到特定的DNA序列,改变颜色从蓝色到绿色到红色.
科学领域:
- 聚合物化学 聚合物化学
- 材料科学 材料科学 材料科学
- 生物物理学的生物物理.
背景情况:
- 合聚合物具有可调节的光学特性.
- 阴离子聚合物具有水溶性和生物分子相互作用的潜力.
- 控制聚合物排放对于传感应用至关重要.
研究的目的:
- 合成和表征一种阴阳性水溶性联聚合物 (PFPB).
- 为了研究链间相互作用对PFPB排放的影响.
- 探索PFPB作为DNA检测的色度传感器的潜力.
主要方法:
- 苏苏基共聚合合成PFPB.
- 四分化来引入阴性电荷.
- 光谱分析 (发射光谱) 用于研究颜色变化.
- 与单链DNA (ss-DNA) 和核酸 (PNA) 的相互作用研究.
主要成果:
- PFPB的排放量取决于度,从蓝色转变为绿色.
- 与母聚合物相比,对ss-DNA的能量传输得到了增强.
- 使用PNA-C*和补充/非补充ss-DNA实现了三种颜色 (蓝色,绿色,红色) 的排放系统.
结论:
- 链间相互作用显著调节结合聚合物发射频率.
- 通过颜色变化检测特定的DNA序列,PFPB展示了作为响应性材料的潜力.
- 开发的系统提供了一个基于生物分子识别的多色传感的多功能平台.
相关概念视频
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Radioisotopes, fluorophores, or small molecule binding partners like biotin or digoxigenin, are the most widely used reporter tags for labeling DNA probes. These labels can be attached to the probe DNA molecule via...
Radioisotopes, fluorophores, or small molecule binding partners like biotin or digoxigenin, are the most widely used reporter tags for labeling DNA probes. These labels can be attached to the probe DNA molecule via...
DNA Microarrays
Microarrays are high-throughput and relatively inexpensive assays that can be automated to analyze large quantities of data at a time. They are used in genome-wide studies to compare gene or protein expression under two varied conditions, such as healthy and diseased states. Microarrays consist of glass or silica slides on which probe molecules are covalently attached through surface functionalization. Most commonly, the slides are prepared through the chemisorption of silanes to silica...


