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Related Experiment Video

Updated: Jul 17, 2026

Rapid Nanoprobe Signal Enhancement by In Situ Gold Nanoparticle Synthesis
07:30

Rapid Nanoprobe Signal Enhancement by In Situ Gold Nanoparticle Synthesis

Published on: March 7, 2018

Microwave-accelerated ultrafast nanoparticle aggregation assays using gold colloids.

Kadir Aslan1, Chris D Geddes

  • 1Institute of Fluorescence, Laboratory for Advanced Medical Plasmonics, Medical Biotechnology Center, University of Maryland Biotechnology Institute, 725 West Lombard Street, Baltimore, Maryland 21201, USA.

Analytical Chemistry
|January 30, 2007
PubMed
Summary

Microwave heating dramatically accelerates gold colloid aggregation assays, reducing assay times from minutes to seconds. This novel technology enhances kinetics for faster, more efficient biomolecular interaction studies.

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Area of Science:

  • Nanotechnology
  • Biochemistry
  • Analytical Chemistry

Background:

  • Aggregation assays are crucial for studying biomolecular interactions.
  • Traditional assays can be time-consuming, limiting throughput.
  • Rapid aggregation detection is needed for real-time analysis.

Purpose of the Study:

  • To demonstrate the proof of principle for microwave-accelerated aggregation assay technology.
  • To significantly reduce the run time of solution-based aggregation assays.
  • To validate the technology using a model biotin-avidin interaction.

Main Methods:

  • Utilized biotinylated gold colloids and streptavidin for a model aggregation assay.
  • Employed microwave heating to accelerate the aggregation process.

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Published on: November 27, 2013

Related Experiment Videos

Last Updated: Jul 17, 2026

Rapid Nanoprobe Signal Enhancement by In Situ Gold Nanoparticle Synthesis
07:30

Rapid Nanoprobe Signal Enhancement by In Situ Gold Nanoparticle Synthesis

Published on: March 7, 2018

Gold Nanoparticle Synthesis
13:42

Gold Nanoparticle Synthesis

Published on: July 10, 2021

Millifluidics for Chemical Synthesis and Time-resolved Mechanistic Studies
12:55

Millifluidics for Chemical Synthesis and Time-resolved Mechanistic Studies

Published on: November 27, 2013

  • Measured colloid velocity and aggregation completion under different conditions.

    • Main Results:

    • Microwave heating reduced aggregation assay time from 20 minutes to 10 seconds (>100-fold kinetics increase).
    • Initial colloid velocity reached up to 10.5 m/s after 1-s microwave heating.
    • Control experiments confirmed negligible non-specific interactions.

    Conclusions:

    • Microwave acceleration offers a rapid and efficient method for aggregation assays.
    • The technology significantly enhances assay kinetics without substantial bulk temperature increase.
    • This approach is suitable for studying biomolecular interactions with high throughput.