Trapping and manipulation of nanoparticles with light and electric field
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United States of America
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Dec 24, 2024
Grant Date -
Jan 25, 2024
app pub date -
Oct 2, 2023
filing date -
Oct 2, 2023
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Abstract
A nanotweezer and method of trapping and dynamic manipulation thereby are provided. The nanotweezer comprises a first metastructure including a first substrate, a first electrode, and a plurality of plasmonic nanostructures arranged in an array, and a trapping region laterally displaced from the array; a second metastructure including a second substrate and a second electrode; a microfluidic channel between the first metastructure and the second metastructure; a voltage source configured to selectively apply an electric field between the first electrode and the second electrode; and a light source configured to selectively apply an excitation light to the microfluidic channel at a first location corresponding to the array, thereby to trap a nanoparticle at a second location corresponding to the trapping region.
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