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Related Experiment Video

Updated: May 28, 2026

NanoDrop Microvolume Quantitation of Nucleic Acids
09:28

NanoDrop Microvolume Quantitation of Nucleic Acids

Published on: November 22, 2010

Doing more with less: a method for low total mass, affinity measurement using variable-length nanotethers.

Richard D Perrins1, Craig Orchard, Maria Zavodszky

  • 1Cardiff School of Biosciences, Biomedical Sciences Building, Museum Avenue, Cardiff, CF10 3AX, UK.

Analytical Chemistry
|October 28, 2011
PubMed
Summary
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This study introduces a novel nanotether and time-resolved Forster Resonance Energy Transfer (FRET) technique for quantifying biomolecular interactions. This method significantly reduces the biomaterial needed for binding affinity assays, offering a more efficient approach.

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Biophysics

Background:

  • Understanding biomolecular interactions is crucial in biology.
  • Conventional methods for measuring binding affinity are resource-intensive.

Purpose of the Study:

  • To develop a new, material-efficient technique for quantitative binding assays.
  • To utilize DNA hybridization, nanotethers, and time-resolved FRET for this purpose.

Main Methods:

  • Employing DNA tethers constructed from overlapping oligonucleotides to colocalize and attach test biomolecules to a surface.
  • Utilizing variable-length tethers to control the effective end concentration of tethered biomolecules, ranging from 56 nM to 3.8 microM.
  • Implementing time-resolved Forster Resonance Energy Transfer (FRET) for quantitative binding measurements.

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Last Updated: May 28, 2026

NanoDrop Microvolume Quantitation of Nucleic Acids
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Published on: November 22, 2010

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Main Results:

  • Demonstrated a novel technique significantly reducing the required biomaterial for binding assays.
  • Successfully controlled effective biomolecule concentrations via variable DNA tether lengths.
  • Established a new method for quantitative affinity binding parameter measurement.

Conclusions:

  • The nanotether and time-resolved FRET method offers a more efficient alternative to conventional techniques.
  • Variable-length DNA tethers provide precise control over local concentrations for binding studies.
  • This approach has broad potential for quantitative affinity measurements in various biochemical studies.