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Related Concept Videos

Enzyme-Linked Immunosorbent Assay01:33

Enzyme-Linked Immunosorbent Assay

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In 1971, Peter Perlman and Eva Engvall developed an Enzyme-linked immunosorbent assay (ELISA or EIA). ELISA differs from western blot in that the assays are conducted in microtiter plates or in vivo rather than on an absorbent membrane.
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Enzymes speed up reactions by lowering the activation energy of the reactants. The speed at which the enzyme turns reactants into products is called the rate of reaction. Several factors impact the rate of reaction, including the number of available reactants. Enzyme kinetics is the study of how an enzyme changes the rate of a reaction.
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Related Experiment Video

Updated: Jan 10, 2026

Dry Film Photoresist-based Electrochemical Microfluidic Biosensor Platform: Device Fabrication, On-chip Assay Preparation, and System Operation
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On-chip enzymatic assays.

Joseph Wang1

  • 1Department of Chemistry, New Mexico State University, Las Cruces, NM 88003, USA. jowang@nmsu.edu

Electrophoresis
|March 14, 2002
PubMed
Summary
This summary is machine-generated.

Enzyme assays on microchip platforms offer rapid, economical analysis by combining microfluidics with biocatalysis. This review covers their advantages, limitations, and applications for decentralized testing.

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Area of Science:

  • Biochemistry
  • Analytical Chemistry
  • Microfluidics

Background:

  • Enzymatic assays are crucial for analyzing various substrates.
  • Microfluidic devices, or "lab-on-chip" systems, offer miniaturized analytical capabilities.
  • Integrating enzymes with microfluidics enhances assay speed, economy, and selectivity.

Purpose of the Study:

  • To review possibilities for performing enzymatic assays on microchip platforms.
  • To discuss the advantages, limitations, and examples of enzyme-based biochips.
  • To explore the integration of enzymatic reactions with microfluidic separations.

Main Methods:

  • Review of existing literature on enzymatic assays in microfluidic devices.
  • Analysis of on-chip mixing, reaction, and separation principles.
  • Examination of factors influencing enzymatic reaction behavior at small scales.

Main Results:

  • Enzyme-based microchips enable faster, easier, and more economical enzymatic assays.
  • Successful integration requires understanding enzyme kinetics and microfluidic tailoring for optimal reaction and separation.
  • Potential for decentralized testing of clinical and environmental substrates.

Conclusions:

  • Microchip-based enzymatic assays present a versatile platform for advanced diagnostics.
  • Tailoring microfluidics is key to balancing reaction times and analytical separation quality.
  • These biochips hold significant promise for point-of-care and environmental monitoring.