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Nanomaterial-Based Dual-Emission Ratiometric Fluorescent Sensors for Biosensing and Cell Imaging.

Yanan Zhang1, Dajun Hou1, Zelong Wang2

  • 1Hubei Key Laboratory for Processing and Application of Catalytic Materials, College of Chemistry and Chemical Engineering, Huanggang Normal University, Huanggang 438000, China.

Polymers
|August 10, 2021
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Summary

Nanomaterial-based dual-emission ratiometric fluorescent sensors offer enhanced precision in biosensing and cell imaging. This review details their design, applications, and future potential in improving detection accuracy.

Keywords:
biosensingcell imagingnanomaterialratiometric fluorescent sensor

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Area of Science:

  • Optophysical properties of nanomaterials
  • Biosensing and cell imaging applications

Background:

  • Dual-emission ratiometric fluorescence provides internal referencing, overcoming confounding factors.
  • Nanomaterial-based sensors (e.g., polymer dots, quantum dots, silicon nanorods, gold nanoparticles) are crucial for sensitive and precise detection.

Purpose of the Study:

  • To systematically review recent advancements in nanomaterial-based dual-emission ratiometric fluorescent biosensors.
  • To introduce general design strategies for these sensors.
  • To discuss challenges and future directions.

Main Methods:

  • Review of recent literature on nanomaterial-based dual-emission ratiometric fluorescent biosensors.
  • Categorization of sensor design approaches (single vs. dual reversible signals).
  • Illustration of typical examples and their applications.

Main Results:

  • Summary of progress in nanomaterial-based dual-emission ratiometric fluorescent biosensors.
  • Detailed explanation of two primary design methodologies.
  • Presentation of specific, recent examples of these biosensors.

Conclusions:

  • Nanomaterial-based dual-emission ratiometric fluorescent sensors significantly enhance biosensing and cell imaging capabilities.
  • Further research is needed to address current challenges and unlock future potential.
  • These sensors are vital for improving detection sensitivity and precision.