在单细胞中进行超多元成像的 Fractal Nanoplasmonic标签
Jianlei Shen1, Le Liang2, Mingshu Xiao3
1School of Chemistry and Chemical Engineering, and Institute of Molecular Medicine, Renji Hospital, School of Medicine , Shanghai Jiao Tong University , Shanghai 200240 , China.
Journal of the American Chemical Society
|July 10, 2019
概括
研究人员开发了用于超多重复 (SM) 成像的新型DNA工程纳米质标签. 这些超明亮,光稳定的标签能够进行先进的细胞分析,超越了复杂生物研究的传统光方法.
科学领域:
- 纳米技术
- 生物物理
- 细胞生物学
背景情况:
- 系统生物学需要先进的方法来同时标记多个生物分子.
- 现有的光复合在分辨率和容量方面存在局限性.
研究的目的:
- 开发用于超复数 (SM) 成像的新型DNA工程微分纳米标签.
- 为了实现超高亮度和光稳定性,提高细胞成像.
主要方法:
- 制造具有可调节的分形形态的统一的~50nm纳米质标签.
- 使用SM等离子成像超越常规光复合极限.
- 证明受体介导的内细胞和蛋白质纳米粒子传输的定量成像.
主要成果:
- 开发了颜色可分辨的纳米塑料标签,具有可调节的尖端面积比 (δ = 0.29-1.66).
- 实现了超越传统光复合能力的SM等离子成像.
- 成功地对单个细胞内的多种蛋白质纳米粒子结构进行实时定量成像.
结论:
- 开发的SM-plasmonic方法为细胞成像提供了卓越的多重复合.
- 这项技术有助于理解纳米毒理学中的蛋白质-纳米粒子相互作用.
- 促进用于诊断和治疗的纳米药物的开发.
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