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具有混合协调的两性聚合物的光聚合提供了紧和反应性的量子点
Wentao Wang1, Anshika Kapur1, Xin Ji1
1†Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States.
Journal of the American Chemical Society
|March 24, 2015
概括
新的多协调聚合物功能化量子点 (QDs) 具有双酸和伊米达组. 这提高了QD稳定性,并使生物成像和传感中的应用成为可能.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 生物化学 生物化学
背景情况:
- 量子点 (QD) 需要表面功能化,以获得稳定性和特定应用.
- 现有的连接体经常遭受氧化或弱结合,限制QD性能.
- 开发强大的和多功能QD配体对于推进纳米技术和生物成像至关重要.
研究的目的:
- 开发用于QD表面功能化的新型多协调聚合物.
- 结合脂酸和伊米达的功能,以改善连接物特性.
- 为了创建稳定的,具有可调节的光学和反应性质的水溶QD.
主要方法:
- 合成的聚 ((异布烯-高氨酸无水化物) 与脂酸和伊米达基组.
- 采用轻度光联策略来进行连接体交换和QD相移.
- 用光染料和通过反应组进行氧化还原活性多巴胺的功能化QD.
- 将聚合物涂层的QD与细胞透结合起来.
主要成果:
- 在广泛的pH范围和生物介质中实现高光QD,具有优异的长期体稳定性.
- 通过福斯特共振能量转移 (FRET) 和pH依赖的电荷转移 (CT) 证明可调节的发射.
- 使用细胞透,没有观察到细胞毒性,促进了QDs的细胞内吸收.
结论:
- 新型的多协调聚合物提供了强大的和多功能QD功能.
- 这些聚合物-QD合物为高级应用提供了增强的稳定性和可调节的光学性能.
- 开发的平台适合用于生物成像和治疗,因为其有效的细胞吸收和低毒性.
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