Results 51 to 60 of about 2,534,041 (331)

(INVITED)Classification of optically trapped particles: A comparison between optical fiber tweezers and conventional setups

open access: yesResults in Optics, 2021
The classification of the type of trapped particles is a crucial task for an efficient integration of optical-tweezers in intelligent microfluidic devices.
Pedro A.S. Jorge   +8 more
doaj  

Genetic Material Manipulation and Modification by Optical Trapping and Nanosurgery-A Perspective

open access: yesFrontiers in Bioengineering and Biotechnology, 2020
Light can be employed as a tool to alter and manipulate matter in many ways. An example has been the implementation of optical trapping, the so called optical tweezers, in which light can hold and move small objects with 3D control.
Alfonso Blázquez-Castro   +9 more
doaj   +1 more source

Optical tweezers in single-molecule experiments

open access: yesThe European Physical Journal Plus, 2020
In the last decades, optical tweezers have progressively emerged as a unique tool to investigate the biophysical world, allowing to manipulate and control forces and movements of one molecule at a time with unprecedented resolution.
A. Zaltron   +4 more
semanticscholar   +1 more source

Optical Tweezers in Human Cancers

open access: yesZhongliu Fangzhi Yanjiu
Optical tweezers are a means to manipulate objects with light. Optical tweezers can obtain a nanometer space, piconewton force, and a millisecond resolution; thus, they are excellently suited for studying biological processes from the single-cell to the ...
ZHANG Baihong, YUE Hongyun
doaj   +1 more source

Optical Assembling of Micro-Particles at a Glass–Water Interface with Diffraction Patterns Caused by the Limited Aperture of Objective

open access: yesApplied Sciences, 2018
Optical tweezers can manipulate micro-particles, which have been widely used in various applications. Here, we experimentally demonstrate that optical tweezers can assemble the micro-particles to form stable structures at the glass–solution interface in ...
Min-Cheng Zhong, Ai-Yin Liu, Rong Zhu
doaj   +1 more source

Design of Optical Tweezers Manipulation Control System Based on Novel Self-Organizing Fuzzy Cerebellar Model Neural Network

open access: yesApplied Sciences, 2022
Holographic optical tweezers have unique non-physical contact and can manipulate and control single or multiple cells in a non-invasive way. In this paper, the dynamics model of the cells captured by the optical trap is analyzed, and a control system ...
Jing Zhao   +4 more
doaj   +1 more source

Observation of processive telomerase catalysis using high-resolution optical tweezers

open access: yesNature Chemical Biology, 2020
Telomere maintenance by telomerase is essential for continuous proliferation of human cells and is vital for the survival of stem cells and 90% of cancer cells.
Eric M. Patrick   +4 more
semanticscholar   +1 more source

Micro-Dumbbells—A Versatile Tool for Optical Tweezers

open access: yesMicromachines, 2018
Manipulation of micro- and nano-sized objects with optical tweezers is a well-established, albeit still evolving technique. While many objects can be trapped directly with focused laser beam(s), for some applications indirect manipulation with tweezers ...
Weronika Lamperska   +4 more
doaj   +1 more source

Optical tweezers: wideband microrheology [PDF]

open access: yesJournal of Optics, 2011
Microrheology is a branch of rheology having the same principles as conventional bulk rheology, but working on micron length scales and micro-litre volumes. Optical tweezers have been successfully used with Newtonian fluids for rheological purposes such as determining fluid viscosity.
Daryl Preece   +6 more
openaire   +3 more sources

Optical Trapping and Manipulation of Superparamagnetic Beads Using Annular-Shaped Beams

open access: yesMethods and Protocols, 2018
We propose an optical tweezers setup based on an annular-shaped laser beam that is efficient to trap 2.8 μ m-diameter superparamagnetic particles.
Leandro Oliveira   +2 more
doaj   +1 more source

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