双色核心外化纳米系统用于高级超高分辨率生物医学成像
Maria Antonieta Ramirez-Morales1,2, Elisa De Luca3,4, Chiara Coricciati3,5
1HiQ-Nano s.r.l. Via Barsanti 1, Arnesano Lecce 73010 Italy maryarmzm@gmail.com mariada.malvindi@hiqnano.com.
Nanoscale advances
|October 26, 2023
概括
研究人员使用一种新的两循环斯托伯方法开发了双色光化纳米粒子 (SiO2NP). 这些生物相容的纳米系统提供了增强的信号稳定性和先进的纳米镜和细胞内生物传感的潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 生物医学工程 生物医学工程
背景情况:
- 光核心外二氧化纳米粒子 (SiO2NP) 在纳米医学和生命科学中具有价值.
- 优点包括增强的光信号稳定性和分隔功能.
- 针对特定应用的定制合成至关重要.
研究的目的:
- 介绍一种新的双循环斯托伯方法,用于合成双色光SiO2NP.
- 用生物素使NP功能化,以改善体稳定性.
- 探索它们在纳米镜和细胞内生物传感方面的潜力.
主要方法:
- 使用商业染料进行SiO2NP合成的双循环Stöber协议.
- 通过两种不同的方法,用生物素进行表面功能化.
- 使用FT-IR,DLS,UV-vis,TEM和CLSM进行表征.
- 超分辨率成像 (结构化照明) 用于纳米尺度可视化.
主要成果:
- 成功合成具有量身定制特性的双色光SiO2NP.
- 在生物化后证明了体稳定性.
- 在基板和细胞环境中实现的高分辨率成像 (100nm).
- 适用于各种染料组合的多功能封装能力.
结论:
- 开发的双循环斯托贝尔方法使双色光SiO2NP的精确合成成为可能.
- 生物化增强了生物医学应用的体稳定性.
- 这些NP显示出作为纳米尺度校准工具和细胞内生物传感的巨大潜力.
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