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2D Material-Based Optical Biosensor: Status and Prospect.

Zong-Lin Lei1, Bo Guo1

  • 1Key Lab of In-Fiber Integrated Optics of Ministry of Education of China, Harbin Engineering University, Harbin, 150001, China.

Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|December 13, 2021
PubMed
Summary
This summary is machine-generated.

Two-dimensional materials enhance optical biosensors for biomolecule detection, improving sensitivity and detection limits. These advanced sensors show promise for applications in healthcare, food safety, and environmental monitoring.

Keywords:
2D materialsevanescent wavefluorescence resonance energy transferoptical biosensorsurface plasmon resonance

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Area of Science:

  • Materials Science
  • Biotechnology
  • Nanotechnology

Background:

  • Two-dimensional (2D) materials offer unique optical properties for advanced biosensing.
  • Graphene, transition metal dichalcogenides, and MXenes are key materials in this field.
  • Optical biosensors leverage these materials to overcome limitations of traditional sensing methods.

Purpose of the Study:

  • To review optical biosensors based on various 2D materials.
  • To detail detection methods like surface plasmon resonance (SPR) and fluorescence resonance energy transfer (FRET).
  • To discuss the integration strategies and applications of 2D materials in biosensing.

Main Methods:

  • Review of literature on 2D materials and optical biosensors.
  • Detailed introduction to biomolecule detection techniques (SPR, FRET, evanescent wave).
  • Summary of various 2D material-based biosensor designs and their properties.

Main Results:

  • 2D materials significantly enhance biosensor sensitivity and lower detection limits.
  • Modified 2D materials offer advantages over traditional sensing modalities.
  • Diverse applications demonstrated in biological imaging, food safety, and environmental monitoring.

Conclusions:

  • Optical biosensors utilizing 2D materials represent a significant advancement in biomolecule detection.
  • Further research is expected to drive commercialization and improve quality of life.
  • The integration of 2D materials is crucial for developing next-generation biosensing technologies.