Application of total internal reflection fluorescence microscopy to study cell adhesion to biomaterials

Area of Science:

• Biomaterials Science
• Cell Biology
• Microscopy Techniques

Background:

• Cell adhesion and function rely on cell-substrate contacts.
• Understanding biomaterial influence on cell adhesion requires quantifying cell-substrate contact area.
• Accurate measurement of cell-substrate separation is crucial for cell biology research.

Purpose of the Study:

• To review the development and application of Total Internal Reflection Fluorescence Microscopy (TIRFM) for quantifying cell-substrate separation distances.
• To present a theory for calculating separation distances using fluorophores in cell membranes.
• To compare TIRFM with other microscopy techniques for cell/substrate separation measurement.

Main Methods:

• Development and application of Total Internal Reflection Fluorescence Microscopy (TIRFM).
• Utilizing fluorophores in the cell membrane for distance calculations.
• Comparison of TIRFM with Interference Reflection Microscopy and related techniques.

Main Results:

• TIRFM provides a method to quantify cell-substrate separation distances.
• An approximate theory allows straightforward calculation of separation distances.
• TIRFM is applicable to studying changes in contact area, adhesion strength, bond strength, and real-time cell/substrate separation.

Conclusions:

• TIRFM is a valuable tool for investigating cell-substrate interactions.
• The technique aids in understanding how biomaterial properties affect cell adhesion.
• TIRFM enables real-time measurements crucial for dynamic cell behavior studies.