optical tweezers


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optical tweezers

pl.n. (used with a sing. or pl. verb)
A technique that uses a single-beam laser directed through an objective lens to trap, image, and manipulate micron-sized particles in three dimensions.
References in periodicals archive ?
The purchase of a high-end integrated optical tweezers and / confocal fluorescence microscopy set-up to measure a variety of high-resolution forces and dynamics (bio) molecules and interactions between two optically trapped particles.
Early this year, Gordon and his colleagues published a paper in Nanoscale introducing how they used these optical tweezers to assess the vibrational modes of DNA fragments.
The physicists describe their research in the journal "Physical Review X:" With two optical tweezers they grabbed a single Caesium atom and pulled it in two opposing directions.
For example, AO-enhanced optical tweezers have been used to manipulate DNA.
First proposed as a scientific theory in 1986 and prototyped by a University of Chicago team in 1997, holographic optical tweezers have been lauded as indispensible for researching cutting-edge ideas in physics, chemistry, and biology.
They survey applications in photonics and nanophotonics, nano-optics and quantum physics, optical metamaterials, the simulated trapping microspheres and nanowires with optical tweezers, photodetecting enhanced light absorption, and nanomedicine.
For several years optical tweezers - incredibly tiny laser beams capable of moving molecules - have been used by scientists in order to study DNA.
Among the topics are a single-molecule barcoding system using nanoslits for DNA analysis called nanocoding, inserting and manipulating DNA in a nanopore with optical tweezers, analyzing biomolecules using surface plasmons, small-angle scattering and neutron contrast variation for studying biomolecular complexes, imaging quantum dots in vivo, the monitoring and affinity purification of proteins using dual tags with tetracysteine motifs, magnetic nanoparticles for local drug delivery using magnetic implants, and custom-designed molecular scissors for site-specific manipulation of the plant and mammalian genomes.
Lpi is responsible for the company's third technology, optical tweezers.
Thus, the optical tweezers is a powerful tool for both biological and physical studies of microscopic particles.
This architecture, which is called the Virtual Environment for Nano Scale Assembly (VENSA), has been constructed for interfacing with an optical tweezers instrument for nanotechnology development.
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