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Related Experiment Video

Updated: Jun 20, 2026

High-throughput Protein Expression Generator Using a Microfluidic Platform
09:26

High-throughput Protein Expression Generator Using a Microfluidic Platform

Published on: August 23, 2012

RNA-protein binding kinetics in an automated microfluidic reactor.

William K Ridgeway1, Effrosyni Seitaridou, Rob Phillips

  • 1Department of Molecular Biology, The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 N. Torrey Pines Rd, MB33, La Jolla, CA 92037, USA.

Nucleic Acids Research
|September 18, 2009
PubMed
Summary

A novel microfluidic Riboreactor automates RNA-protein binding assays, enabling long-time scale kinetic studies with single-molecule sensitivity. This technology advances the study of complex molecular assembly processes.

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Bioengineering

Background:

  • Microfluidic chips automate biochemical assays at the nanoliter scale, beneficial for RNA-protein binding reactions.
  • Current microfluidic mixers struggle with complex reactions and long-time scale investigations.

Purpose of the Study:

  • To design and construct a microfluidic 'Riboreactor' for studying RNA-protein complex formation kinetics over extended periods.
  • To enable automated preparation and observation of binding reactions with high sensitivity.

Main Methods:

  • Development of a computer-automated microfluidic reactor capable of preparing reactions from eight reagents.
  • Integration of a two-photon microscope for observing 5-nl reactions over 1000 s with single-molecule sensitivity.
  • Utilizing the Riboreactor for automated RNA-protein binding assays with a bacterial 30S ribosome fragment.

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Fast Enzymatic Processing of Proteins for MS Detection with a Flow-through Microreactor

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Microfluidic Mixers for Studying Protein Folding
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Microfluidic Mixers for Studying Protein Folding

Published on: April 10, 2012

Related Experiment Videos

Last Updated: Jun 20, 2026

High-throughput Protein Expression Generator Using a Microfluidic Platform
09:26

High-throughput Protein Expression Generator Using a Microfluidic Platform

Published on: August 23, 2012

Fast Enzymatic Processing of Proteins for MS Detection with a Flow-through Microreactor
09:49

Fast Enzymatic Processing of Proteins for MS Detection with a Flow-through Microreactor

Published on: April 6, 2016

Microfluidic Mixers for Studying Protein Folding
12:42

Microfluidic Mixers for Studying Protein Folding

Published on: April 10, 2012

Main Results:

  • The Riboreactor successfully prepared RNA-protein binding reactions in a fully automated manner.
  • Observed binding rates were consistent with those from conventional assays.
  • Demonstrated negligible photobleaching and high reproducibility in ultra-sensitive fluorescence detection.

Conclusions:

  • The microfluidic Riboreactor combines automation, low sample consumption, and sensitive detection for reproducible biochemical assays.
  • This platform is suitable for probing complex reaction networks in the assembly of large ribonucleoprotein complexes, such as ribosomes.