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Total Internal Reflection Fluorescence Microscopy

Total Internal Reflection Fluorescence Microscopy

Total internal reflection fluorescence microscopy or TIRF is an advanced microscopic technique used to visualize fluorophores in samples close to a solid surface with a higher refractive index, such as a glass coverslip. TIRF only allows fluorophores in proximity to the solid surface to be excited. When light from a medium with a lower refractive index (such as air) hits the glass coverslip at a critical angle, the light undergoes total internal reflection stead of passing through the glass.

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Related Experiment Video

Updated: Jul 15, 2025

High-Throughput Total Internal Reflection Fluorescence and Direct Stochastic Optical Reconstruction Microscopy Using a Photonic Chip

High-Throughput Total Internal Reflection Fluorescence and Direct Stochastic Optical Reconstruction Microscopy Using a Photonic Chip

Published on: November 16, 2019

Trends in Single-Molecule Total Internal Reflection Fluorescence Imaging and Their Biological Applications with

Louis Colson¹, Youngeun Kwon², Soobin Nam²

¹Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA.

Sensors (Basel, Switzerland)

|September 28, 2023

Summary

Single-molecule fluorescence imaging offers advanced insights into biomolecular dynamics. This review covers total internal reflection fluorescence microscopy techniques and their integration with microfluidics for enhanced biological research.

Keywords:

TIRF data analysis fluorescence microfluidics single-molecule imaging

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Last Updated: Jul 15, 2025

High-Throughput Total Internal Reflection Fluorescence and Direct Stochastic Optical Reconstruction Microscopy Using a Photonic Chip

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Published on: November 16, 2019

Lensless Fluorescent Microscopy on a Chip

Lensless Fluorescent Microscopy on a Chip

Published on: August 17, 2011

Single Molecule Fluorescence Microscopy on Planar Supported Bilayers

Single Molecule Fluorescence Microscopy on Planar Supported Bilayers

Published on: October 31, 2015

Area of Science:

Biophysics
Biochemistry
Microscopy

Background:

Single-molecule imaging provides quantitative insights into biomolecular equilibrium and dynamics.
Fluorescence-based techniques are crucial for observing molecular behavior at the nanoscale.

Purpose of the Study:

To review state-of-the-art advancements in single-molecule fluorescence imaging.
To explore implementations of total internal reflection fluorescence (TIRF) microscopy.
To discuss the integration of microfluidic technology with single-molecule imaging.

Main Methods:

Systematic review of in vitro single-molecule imaging techniques.
Focus on total internal reflection fluorescence (TIRF) microscopy.
Discussion of sample preparation, passivation, data analysis, and microfluidic compatibility.

Main Results:

TIRF microscopy offers accessible implementations for single-molecule imaging.
Microfluidic technology presents potential benefits and challenges for advanced applications.
Current challenges and future prospects in fluorescence-based single-molecule imaging are summarized.

Conclusions:

Single-molecule fluorescence imaging, particularly using TIRF microscopy, is a powerful tool for studying biomolecules.
Integration with microfluidics holds promise for future advancements.
Continued development is essential for unlocking new biological insights.