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Related Concept Videos

Centrifugation01:05

Centrifugation

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Centrifugation is a separation technique based on differences in density or size. It is commonly used to separate solids from aqueous interferents. During centrifugation, the sample is placed in centrifugation tubes and spun at high angular velocity, which allows centrifugal force to act differentially on the different densities or masses of the components. After spinning, the supernatant liquid is decanted. Depending on the specific application, either the pellet or the supernatant is retained...
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Repurposing a Benchtop Centrifuge for High-Throughput Single-Molecule Force Spectroscopy.

Darren Yang1,2,3, Wesley P Wong4,5,6

  • 1Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA, 02115, USA.

Methods in Molecular Biology (Clifton, N.J.)
|September 24, 2017
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Summary

We developed an affordable Centrifuge Force Microscope (CFM) for high-throughput single-molecule manipulation. This technique simplifies complex methods, making molecular force measurements accessible to more researchers.

Keywords:
Centrifuge Force MicroscopeDNA NanoswitchesSingle-Molecule Force Spectroscopy

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Area of Science:

  • Biophysics
  • Nanotechnology
  • Biochemistry

Background:

  • Single-molecule manipulation techniques are crucial for understanding molecular mechanisms.
  • Existing methods often face challenges like high cost, complexity, and limited accessibility.

Purpose of the Study:

  • To present a novel, high-throughput single-molecule manipulation method using a benchtop centrifuge.
  • To overcome the limitations of current single-molecule force measurement techniques.

Main Methods:

  • Adaptation of a commercial centrifuge with an inexpensive Centrifuge Force Microscope (CFM).
  • Integration of DNA nanoswitches for reliable and repeatable molecular measurements.
  • Development of detailed protocols for CFM construction, sample preparation, and force measurements.

Main Results:

  • Demonstration of high-throughput single-molecule manipulation capabilities.
  • Successful adaptation of the CFM for use by non-specialists.
  • Reliable and repeatable molecular force measurements achieved using DNA nanoswitches.

Conclusions:

  • The Centrifuge Force Microscope (CFM) offers a cost-effective and accessible platform for single-molecule force measurements.
  • This approach significantly lowers the barrier to entry for researchers in the field.
  • The developed protocols enable broader application of single-molecule manipulation techniques.