Showing 241 - 260 results of 518 for search '"optical tweezers"', query time: 0.08s Refine Results
  1. 241

    Uncalibrated vision-based control for optical manipulation of microscopic particles by Li, X., Cheah, Chien Chern

    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
  2. 242

    Mechanical properties of tau pre-mRNA splice site hairpin and its mutants by Shi, Jiahao

    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
  3. 243

    Optical rotational self-assembly at air-water surface by a single vortex beam by Xintong Chen, Weizhu Cheng, Mingyuan Xie, Fuli Zhao

    Published 2019-03-01
    “…Keywords: Optical rotation dynamics, Optical tweezers, Self-assembly, Orbital angular momentum…”
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    Article
  4. 244

    Squeezing Light via Levitated Cavity Optomechanics by Guoyao Li, Zhang-Qi Yin

    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
  5. 245

    Effects of Infrared Optical Trapping on Saccharomyces cerevisiae in a Microfluidic System by Zdeněk Pilát, Alexandr Jonáš, Jan Ježek, Pavel Zemánek

    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
  6. 246

    Optical Manipulation of Lanthanide-Doped Nanoparticles: How to Overcome Their Limitations by Elisa Ortiz-Rivero, Lucía Labrador-Páez, Paloma Rodríguez-Sevilla, Patricia Haro-González, Patricia Haro-González

    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
  7. 247

    Thermal gradient induced tweezers for the manipulation of particles and cells by Jiajie Chen, Hengji Cong, Jacky Loo, Zhiwen Kang, Minghui Tang, Haixi Zhang, Shu-Yuen Wu, Siu-Kai Kong, Ho-Pui Ho

    Published 2016-11-01
    “…Abstract Optical tweezers are a well-established tool for manipulating small objects. …”
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    Article
  8. 248

    Comment on “Unified treatment of nonlinear optical force in laser trapping of dielectric particles of varying sizes” by Gérard Gouesbet

    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
  9. 249

    Visible-Light Integrated Photonics for 3D-Printing and Trapped-Ion Systems by Corsetti, Sabrina M.

    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
  10. 250

    Micro-optofluidic manipulation of particles by Soh, Kok Hong.

    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)
  11. 251

    Regional feedback control of robot with application to optical manipulation of biological cells by Li, Xiang

    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
  12. 252

    Structures and dynamics of optically confined matter by Dear, R, R D Dear

    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
  13. 253

    Optical trapping of sub-millimeter sized particles and microorganisms by Laurynas Lialys, Justinas Lialys, Alessandro Salandrino, Brian D. Ackley, Shima Fardad

    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
  14. 254

    Substrate Stiffness Mediates Formation of Novel Cytoskeletal Structures in Fibroblasts during Cell–Microspheres Interaction by Olga Adamczyk, Zbigniew Baster, Maksymilian Szczypior, Zenon Rajfur

    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
  15. 255
  16. 256

    Linear and Non-Linear Mechanical Nature of a Living Mammalian Cytoplasm by Gupta, Satish Kumar

    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
  17. 257

    Thermal fluctuations of the lipid membrane determine particle uptake into Giant Unilamellar Vesicles by Yareni A. Ayala, Ramin Omidvar, Winfried Römer, Alexander Rohrbach

    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
  18. 258

    Directed assembly of optically bound matter. by Summers, MD, Dear, R, Taylor, J, Ritchie, G

    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
  19. 259

    Confinement effect on interparticle potential in nematic colloids. by Vilfan, M, Osterman, N, Copic, M, Ravnik, M, Zumer, S, Kotar, J, Babic, D, Poberaj, I

    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
  20. 260

    Optical trapping and spectroscopic characterisation of ionic liquid solutions. by Moore, L, Summers, MD, Ritchie, G

    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