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  2. Optical tweezers - Wikipedia

    en.wikipedia.org/wiki/Optical_tweezers

    By patterning the surface with gold microscopic islands it is possible to have selective and parallel trapping in these islands. The forces of the latter optical tweezers lie in the femtonewton range. [72] The evanescent field can also be used to trap cold atoms and molecules near the surface of an optical waveguide or optical nanofiber. [73] [74]

  3. Tweezers - Wikipedia

    en.wikipedia.org/wiki/Tweezers

    The original tweezers for mechanical gripping have given rise to a number of tools with similar action or purpose but not dependent upon mechanical pressure, including Optical tweezers use light to manipulate microscopic objects as small as a single atom. The momentum transfer from a focused laser beam is able to trap small particles. [5]

  4. Magnetic tweezers - Wikipedia

    en.wikipedia.org/wiki/Magnetic_tweezers

    A magnetic tweezers apparatus consists of magnetic micro-particles, which can be manipulated with the help of an external magnetic field. The position of the magnetic particles is then determined by a microscopic objective with a camera. Typical configuration for magnetic tweezers; only the experimental volume is shown.

  5. Biophotonics - Wikipedia

    en.wikipedia.org/wiki/Biophotonics

    Optical tweezers (or traps) are scientific tools employed to maneuver microscopic particles such as atoms, DNA, bacteria, viruses, and other types of nanoparticles. They use the light's momentum to exert small forces on a sample.

  6. Inside the lab fighting an Asian hornet invasion - AOL

    www.aol.com/news/inside-lab-fighting-asian...

    With pointed tweezers, the scientists extract hornet larvae and pupae for analysis, along with all adult hornets. ... Under a microscope the scientists work out what sex a hornet is. Males go into ...

  7. Photonic force microscope - Wikipedia

    en.wikipedia.org/wiki/Photonic_force_microscope

    Photonic force microscopy (PFM) is an optical-tweezers-based microscopy technique.A small dielectric particle (20 nm to several micrometres) is held by a strongly focused laser beam.

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