优化核心外兰化物纳米粒子与超明亮的Ce3+调制的第二次近红外辐射用于"照明"植物
Jikun Wang1, Chunsheng Li1, Yujie Cui1
1Key Laboratory of Forest Plant Ecology, Ministry of Education, College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, China. xujiating@nefu.edu.cn.
Nanoscale
|June 22, 2023
概括
研究人员开发了使用第二近红外 (NIR-II) 光技术进行植物成像的新型兰化物化纳米粒子 (LDNPs). 这些超明亮的NIR-II探测器可实现工厂系统的高信号噪声成像.
科学领域:
- 生物成像是一种生物成像.
- 纳米技术 纳米技术
- 植物科学 植物科学
背景情况:
- 第二次近红外 (NIR-II) 光成像为生物成像提供了优势.
- 开发用于植物成像的NIR-II光纳米探针仍然是有限的.
研究的目的:
- 开发具有最优核心外结构的化纳米粒子 (LDNPs),用于超亮NIR-II发射.
- 为了使植物使用NIR-II光效应进行有效的光学成像.
主要方法:
- 在NaErF4:Tm核心上合成的核心外LDNP与Ce3+合的活性外.
- 在980nm激光激发后利用双模式红色上转换 (UC) 和NIR-II下转换 (DC) 发射.
- 用聚乙烯胺修改的LDNP用于水友性和植物吸收.
主要成果:
- 优化的LDNP显示红色UC增加了5倍,NIR-II直流发射强度增加了19倍.
- 与红色UC相比,通过NIR-II光实现了显著更高的信号噪声比率.
- 在Arabidopsis thaliana和Nicotiana benthamiana模型中展示了成功的NIR-II成像.
- 使用小鼠模型评估了Brassica rapa chinensis中LDNP的毒性.
结论:
- 开发的LDNP是用于植物成像的高效NIR-II光探头.
- NIR-II成像策略为研究植物中纳米粒子吸收和运输提供了一个有前途的工具.
- 开发的LDNP显示了对非侵入性植物研究和纳米技术应用的潜力.
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