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Related Concept Videos

Imaging Biological Samples with Optical Microscopy01:18

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Direct Force Measurements of Subcellular Mechanics in Confinement using Optical Tweezers
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Introduction to Optical Tweezers.

Matthias D Koch1, Joshua W Shaevitz2

  • 1Joseph Henry Laboratory of Physics and Lewis-Sigler Institute for Integrative Genomics, Princeton University, 244 Carl C. Icahn Laboratory, Washington Road, Princeton, NJ, 08544, USA.

Methods in Molecular Biology (Clifton, N.J.)
|November 16, 2016
PubMed
Summary

Optical tweezers, invented in 1986, are powerful laser tools for manipulating microscopic objects. These optical traps are now essential in molecular biophysics for biological research.

Keywords:
Force measurement techniquesMicron-sized dielectric objectsOptical trapOptical tweezers

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Area of Science:

  • Molecular Biophysics
  • Optical Physics
  • Cell Biology

Background:

  • Optical tweezers, developed in 1986, have evolved from specialized instruments to versatile tools.
  • They utilize focused laser beams to manipulate micron-sized dielectric objects.

Purpose of the Study:

  • Provide an overview of optical tweezers in biological sciences.
  • Highlight key scientific achievements and applications.
  • Explain the fundamental principles and techniques of optical trapping.

Main Methods:

  • Introduction to a typical optical setup.
  • Description of theoretical concepts behind trapping forces.
  • Presentation of quantitative position and force measurement techniques.

Main Results:

  • Optical tweezers are now indispensable in molecular biophysics.
  • Demonstrated versatility in addressing biological problems.
  • Established quantitative measurement techniques for biological applications.

Conclusions:

  • Optical traps are a powerful tool in modern biological sciences.
  • Their development has significantly advanced molecular biophysics.
  • Understanding their principles is crucial for biological research.