JoVE Journal

Biochemistry

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Nanyang Technological University

Using Microfluidics and Fluorescence Microscopy to Study the Assembly Dynamics of Single Actin Filaments and Bundles

We present protocols for simple actin filament microfluidic assays, in combination with fluorescence microscopy, that allow one to accurately monitor individual actin filaments in real-time while sequentially exposing them to different protein solutions.

Chapters in this video

0:04

Introduction

0:40

Polydimethylsiloxane (PDMS) Chamber Assembly

1:45

Connect Microfluidic Device

3:11

Configuring the Setup with Standard Flow Rates and Changing Solution

4:21

Basic Single Filament Experiment: Adenosine Diphosphate (ADP)-Actin Barbed End Depolymerization

6:45

Results: Polymerization of Actin Filaments from Spectrin-Actin Seeds when Exposed to Different Actin Binding Proteins

7:24

Conclusion

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