Confining Fluorescence Detection for Distinguishable Visualization of Multivariate Nanoparticles: Implications for Design and Controllable Preparation of Nanocomposites,ACS Applied Nano Materials

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Confining Fluorescence Detection for Distinguishable Visualization of Multivariate Nanoparticles: Implications for Design and Controllable Preparation of Nanocomposites
ACS Applied Nano Materials ( IF 5.3 ) Pub Date : 2023-03-21 , DOI: 10.1021/acsanm.2c05207
Cong Liu ₁ , Hefeng Li ₁ , Xianhua Huan ₁ , Liu Meng ₁ , Ke Xu ₂ , Hongbo Geng ₂ , Xiaodong Guo ₂ , Chen Chen _{3,

4} , Lei Zu ₅ , Xiaolong Jia _{1,

6} , Qing Cai ₁ , Xiaoping Yang _{1,

6}

Affiliation

The development of multivariate nanoreinforced composites requires available distinguishable visualization approaches to reveal structure–activity relationships. Here, a confined fluorescent detection strategy is employed to cleverly avoid the adverse interference of fluorescence resonance energy transfer (FRET), enabling the distinguishable visualization of multivariate nanoparticles in composites. The strategy relies on rational design and successful synthesis of multivariate nanoparticles with a distinct fluorescent probe labeled, namely, f-SiO₂, f-MWCNTs, and f-GO. Thus, the large-scale 3D dispersion of multivariate nanoparticles was visualized by confining detection of non-overlapping fluorescence emission signals and subsequently was quantitatively analyzed through theoretical calculation. Moreover, the emergence of pseudo-color fluorescent dots suggested that the multivariate nanoparticles constructed a micro-interpenetrating structure that encouraged the dispersion of themselves. This conclusion had been supported by both microstructure characterization and macromechanical performance. It was demonstrated that the proposed distinguishable visualization method opened viable opportunities and inspirations for the design and controllable preparation of nanocomposites.

中文翻译：

用于多元纳米粒子可区分可视化的限制荧光检测：对纳米复合材料设计和可控制备的影响

多元纳米增强复合材料的开发需要可用的可区分可视化方法来揭示结构-活性关系。在这里，采用受限荧光检测策略巧妙地避免荧光共振能量转移 (FRET) 的不利干扰，从而实现复合材料中多元纳米粒子的可区分可视化。该策略依赖于合理设计和成功合成具有独特荧光探针标记的多元纳米粒子，即 f-SiO ₂、f-MWCNT 和 f-GO。因此，通过非重叠荧光发射信号的限制检测可视化多元纳米粒子的大规模 3D 分散，随后通过理论计算进行定量分析。此外，伪彩色荧光点的出现表明多元纳米粒子构建了一种促进自身分散的微互穿结构。这一结论得到了微观结构特征和宏观机械性能的支持。结果表明，所提出的可区分可视化方法为纳米复合材料的设计和可控制备提供了可行的机会和灵感。

更新日期：2023-03-21

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