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Fast Reactions

Fast Reactions

Fast reactions occurring in times shorter than the time needed to mix reactants pose a unique challenge for investigation. In a liquid-phase continuous-flow system, reactants A and B are swiftly pushed into the mixing chamber, where mixing occurs within 1 ms. The reaction mixture then flows through an observation tube, and one measures light absorption to determine species concentrations at various points of the tube. This method is most appropriate when relatively large volumes of reactants...

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Updated: Jul 19, 2026

Aqueous Droplets Used as Enzymatic Microreactors and Their Electromagnetic Actuation

Aqueous Droplets Used as Enzymatic Microreactors and Their Electromagnetic Actuation

Published on: August 28, 2017

Reactions in droplets in microfluidic channels.

Helen Song¹, Delai L Chen, Rustem F Ismagilov

¹Department of Chemistry and Institute for Biophysical Dynamics, The University of Chicago, 5735 South Ellis Avenue, Chicago, IL 60637, USA.

Angewandte Chemie (International Ed. in English)

|November 7, 2006

Summary

Droplet-based microfluidics miniaturize reactions for faster chemical and biological research. These systems offer precise control over reactions, accelerating discovery in screening, assays, and synthesis.

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Last Updated: Jul 19, 2026

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Area of Science:

Chemistry
Biology
Microfluidics

Background:

Droplet-based microfluidic systems offer unique advantages for fundamental and applied research.
These systems enable reaction miniaturization through compartmentalization in droplets ranging from femoliter to microliter volumes.

Purpose of the Study:

To highlight the benefits and applications of droplet-based microfluidic systems in chemistry and biology.
To demonstrate how these systems accelerate research and enable new scientific insights.

Main Methods:

Utilizing droplet microfluidics for reaction compartmentalization.
Controlling reaction parameters such as mixing, timing, and interfacial properties.
Applying systems to chemical and biochemical screening, protein crystallization, and enzymatic assays.

Main Results:

Miniaturization of reactions leading to enhanced efficiency.
Rapid reagent mixing and precise control over reaction timing (milliseconds to months).
Facilitation of synthesis and transport of solid reagents and products.

Conclusions:

Droplet-based microfluidics significantly enhance and accelerate chemical and biochemical screening, protein crystallization, and enzymatic kinetics.
The precise control offered by these systems fosters the development of novel scientific methods and deeper insights.
These microfluidic platforms are valuable tools for advancing diverse areas of scientific research.