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241
Uncalibrated vision-based control for optical manipulation of microscopic particles
Published 2014“…In this paper, a vision-based adaptive control method is proposed for micromanipulation using optical tweezers. A general model of robotic manipulator is introduced in the optical tweezers system so that the movement of the laser beam is controlled by vision-based closed-loop robotic manipulation techniques. …”
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Conference Paper -
242
Mechanical properties of tau pre-mRNA splice site hairpin and its mutants
Published 2017“…In this research we mainly focus on studying tau pre-mRNA splice site hairpin and some of its mutants using optical tweezers. Single tau pre-mRNA molecules are combined with DNA/RNA hybrid handles, which can be stretched with optical tweezers, measuring the tiny force around 20 picoNewtons (pN). …”
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Thesis -
243
Optical rotational self-assembly at air-water surface by a single vortex beam
Published 2019-03-01“…Keywords: Optical rotation dynamics, Optical tweezers, Self-assembly, Orbital angular momentum…”
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Article -
244
Squeezing Light via Levitated Cavity Optomechanics
Published 2022-01-01“…The two-mode squeezing can be maximized near the boundary of the system stable regime and is sensitive to both the cavity decay rate and the power of the optical tweezers.…”
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Article -
245
Effects of Infrared Optical Trapping on Saccharomyces cerevisiae in a Microfluidic System
Published 2017-11-01“…It was also among the first living organisms that were manipulated by optical tweezers and it is currently a frequent subject of optical micromanipulation experiments. …”
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Article -
246
Optical Manipulation of Lanthanide-Doped Nanoparticles: How to Overcome Their Limitations
Published 2020-11-01“…Since Ashkin's pioneering work, optical tweezers have become an essential tool to immobilize and manipulate microscale and nanoscale objects. …”
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Article -
247
Thermal gradient induced tweezers for the manipulation of particles and cells
Published 2016-11-01“…Abstract Optical tweezers are a well-established tool for manipulating small objects. …”
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Article -
248
Comment on “Unified treatment of nonlinear optical force in laser trapping of dielectric particles of varying sizes”
Published 2022-07-01“…In a comprehensive, important, and innovative paper devoted to the evaluation of nonlinear optical force exerted on particles trapped in optical tweezers, imprecise statements have, however, been made which may be misleading to newcomers. …”
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Article -
249
Visible-Light Integrated Photonics for 3D-Printing and Trapped-Ion Systems
Published 2023“…Finally, we demonstrate optical trapping and tweezing of microspheres and cancer cells using an integrated optical phased array for the first time, representing a two-orders-of-magnitude increase in the standoff distance of integrated optical tweezers and the first cell experiments using single-beam integrated optical tweezers.…”
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Thesis -
250
Micro-optofluidic manipulation of particles
Published 2009“…The method of optical manipulation of micro particles using optical tweezers was discovered many years ago. Since then, the field of optical tweezers went through many trials and experiments and had progress tremendously. …”
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Final Year Project (FYP) -
251
Regional feedback control of robot with application to optical manipulation of biological cells
Published 2013“…The dynamics of robotic manipulator is introduced into optical tweezers system so that a closed-loop manipulator control problem can be formulated and solved. …”
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Thesis -
252
Structures and dynamics of optically confined matter
Published 2013“…</p> <p>The optical trapping of aerosol droplets is an area of key importance in atmospheric chemistry, as optical tweezers provide a valuable and versatile tool for droplet manipulation and characterisation. …”
Thesis -
253
Optical trapping of sub-millimeter sized particles and microorganisms
Published 2023-05-01“…Abstract While optical tweezers (OT) are mostly used for confining smaller size particles, the counter-propagating (CP) dual-beam traps have been a versatile method for confining both small and larger size particles including biological specimen. …”
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Article -
254
Substrate Stiffness Mediates Formation of Novel Cytoskeletal Structures in Fibroblasts during Cell–Microspheres Interaction
Published 2021-01-01“…Confocal microscopy allows to observe changes in the 3D organization of the cytoskeleton in response to a precise mechanical stimulus applied with, for example, a bead trapped with optical tweezers. Optical tweezers-based method (OT) is a microrheological technique which employs a focused laser beam and polystyrene or latex beads to study mechanical properties of biological systems. …”
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Article -
255
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256
Linear and Non-Linear Mechanical Nature of a Living Mammalian Cytoplasm
Published 2022“…The results obtained agree with independent optical tweezers measurements. In the second part of the thesis, we systematically show that cell polarity, which is known to facilitate a diverse set of cellular processes such as directional cell migration, differentiation, localized membrane growth, activation of the immune system, is a critical regulator of the anisotropic behavior of mechanics, dynamics and forces within the cytoplasm. …”
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Thesis -
257
Thermal fluctuations of the lipid membrane determine particle uptake into Giant Unilamellar Vesicles
Published 2023-01-01“…Here the authors use optical tweezers, particle tracking and mathematical modelling to show that the uptake process into giant vesicles is influenced by thermal membrane fluctuations.…”
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Article -
258
Directed assembly of optically bound matter.
Published 2012“…Small ensembles of silica microspheres are assembled in a controlled manner using optical tweezers. The structures and dynamics of the resulting optically bound chains are interpreted using a simulation implementing generalized Lorentz-Mie theory. …”
Journal article -
259
Confinement effect on interparticle potential in nematic colloids.
Published 2008“…We studied the confinement effect on the interaction force in nematic liquid crystal colloids with spherical particles inducing planar anchoring. Using magneto-optical tweezers, we measured the spatial dependence of the quadrupolar structural interparticle force over 4 orders of magnitude. …”
Journal article -
260
Optical trapping and spectroscopic characterisation of ionic liquid solutions.
Published 2013“…Droplets comprised of aqueous solutions of the IL ethylammonium nitrate (EAN) are demonstrated to be readily trapped by optical tweezers and are characterized spectroscopically, by analysing the morphology dependent resonances present within backscattered light originating from a broadband light emitting diode. …”
Journal article