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Related Concept Videos

Super-resolution Fluorescence Microscopy01:37

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Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been...
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Nanobiosensors for Single-Molecule Diagnostics: Toward Integration with Super-Resolution Imaging.

Seungah Lee1, Sobia Rafiq2, Seong Ho Kang1,2

  • 1Department of Applied Chemistry and Institute of Natural Sciences, Kyung Hee University, Yongin-si 17104, Gyeonggi-do, Republic of Korea.

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|October 28, 2025
PubMed
Summary
This summary is machine-generated.

Combining nanobiosensors and super-resolution microscopy (SRM) offers powerful new tools for single-molecule diagnostics. This synergy promises enhanced precision for detecting diseases like cancer and neurodegenerative disorders.

Keywords:
diagnosticsnanobiosensorsingle-molecule detectionsuper-resolution microscopy

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Area of Science:

  • Nanotechnology and Optical Imaging
  • Molecular Diagnostics
  • Single-Molecule Detection

Background:

  • Nanotechnology and optical imaging have revolutionized molecular diagnostics, enabling precise detection of individual biomolecules.
  • Nanobiosensors offer ultrasensitive detection, while super-resolution microscopy (SRM) achieves nanometer-scale resolution, surpassing conventional optics.
  • The integration of nanobiosensors and SRM is emerging, with significant potential for advanced diagnostics.

Purpose of the Study:

  • To review nanobiosensor-based single-molecule detection strategies and their integration with SRM.
  • To highlight applications in oncology, infectious diseases, and neurodegenerative disorders.
  • To discuss challenges and future opportunities for clinical translation.

Main Methods:

  • Review of nanobiosensor strategies including plasmonic-SRM hybrids, electrochemical-optical correlatives, and SRM-enabled immunoassays.
  • Exploration of emerging studies at the nanobiosensor-SRM interface, including nanostructure-assisted SRM.
  • Analysis of current challenges and future directions for diagnostic platforms.

Main Results:

  • Nanobiosensors coupled with SRM enable highly precise single-molecule detection.
  • Representative implementations show promise in various disease applications.
  • Engineered nanomaterials can enhance SRM imaging performance.

Conclusions:

  • The convergence of nanobiosensors and SRM holds significant promise for next-generation diagnostics.
  • Addressing challenges like reproducibility and multiplexing is crucial for clinical translation.
  • Future developments in probes, AI, microfluidics, and regulatory strategies will advance single-molecule diagnostic platforms.