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Laser Scissors and Tweezers to Study Chromosomes: A Review [PDF]

open access: goldFrontiers in Bioengineering and Biotechnology, 2020
Starting in 1969 laser scissors have been used to study and manipulate chromosomes in mitotic animal cells. Key studies demonstrated that using the “hot spot” in the center of a focused Gaussian laser beam it was possible to delete the ribosomal genes ...
Michael W. Berns   +5 more
doaj   +2 more sources

Plasmonic tweezers: for nanoscale optical trapping and beyond

open access: yesLight: Science and Applications, 2021
Optical manipulation: plasmonic tweezers Plasmonic tweezers exploit sub-wavelength confinement of light to allow trapping and manipulation of small particles with far greater precision than usual.
Yuquan Zhang, Changjun Min, Xianyou Wang
exaly   +2 more sources

Opto-refrigerative tweezers [PDF]

open access: yesScience Advances, 2021
Localized laser cooling provides a new way to trap and manipulate small objects.
Jingang Li   +6 more
openaire   +4 more sources

Optical Frequency Tweezers [PDF]

open access: yesPhysical Review Applied, 2022
We show a concept of optical frequency tweezers for tweezing light in the optical frequency domain with a high resolution, which is the frequency version of the optical tweezers for spatial manipulation of microscopic objects. We report the proof-of-principle experiment via frequency conversion inside a cavity only for the converted light.
Rikizo Ikuta   +4 more
openaire   +2 more sources

Dual-fiber optical tweezers integrating high-sensitivity structured-light displacement measurement system on fiber end-face [PDF]

open access: yesScientific Reports
The dual-fiber optical tweezers have become widespread in trapping, assembling, and sensing due to their simple fabrication process and flexible operation.
Guofeng Li   +10 more
doaj   +2 more sources

Optofluidic Tweezers: Efficient and Versatile Micro/Nano-Manipulation Tools

open access: yesMicromachines, 2023
Optical tweezers (OTs) can transfer light momentum to particles, achieving the precise manipulation of particles through optical forces. Due to the properties of non-contact and precise control, OTs have provided a gateway for exploring the mysteries ...
Yuchen Zhu   +8 more
doaj   +1 more source

Single-Beam Acoustic Tweezer Prepared by Lead-Free KNN-Based Textured Ceramics

open access: yesMicromachines, 2022
Acoustic tweezers for microparticle non-contact manipulation have attracted attention in the biomedical engineering field. The key components of acoustic tweezers are piezoelectric materials, which convert electrical energy to mechanical energy. The most
Yi Quan   +17 more
doaj   +1 more source

Interferometric Optical Tweezers [PDF]

open access: yesOptics and Photonics News, 1996
Abstract We report the first experimental demonstration of an optical trap that uses interference fringes for the trapping and micro-manipulation of microscopic objects. The finges can be generated either by two-beam interference or by projecting a reduced image of a Ronchi ruling on the sample plane.
Chiou, Arthur E   +4 more
openaire   +3 more sources

3D-Printed Micro-Tweezers with a Compliant Mechanism Designed Using Topology Optimization

open access: yesMicromachines, 2021
The development of handling technology for microscopic biological samples such as cells and spheroids has been required for the advancement of regenerative medicine and tissue engineering.
Yukihito Moritoki   +10 more
doaj   +1 more source

Holographic acoustic tweezers [PDF]

open access: yesProceedings of the National Academy of Sciences, 2018
Significance Holographic optical tweezers use focused light to manipulate multiple objects independently without contact. They are used in tasks such as measuring the spring constant of DNA, the pulling force of the kinesin protein, or to trap matter in exotic states. Differently, acoustic tweezers use sound radiation forces to trap particles
Asier Marzo, Bruce W. Drinkwater
openaire   +6 more sources

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