Showing 361 - 380 results of 518 for search '"optical tweezers"', query time: 0.10s Refine Results
  1. 361

    A model of stereocilia adaptation based on single molecule mechanical studies of myosin I. by Batters, C, Wallace, M, Coluccio, L, Molloy, J

    Published 2004
    “…We have used an optical tweezers-based apparatus to perform single molecule mechanical experiments using the unconventional myosins, Myo1b and Myo1c. …”
    Journal article
  2. 362

    Geometry-induced electrostatic trapping of nanometric objects in a fluid. by Krishnan, M, Mojarad, N, Kukura, P, Sandoghdar, V

    Published 2010
    “…Many sophisticated methodologies have been developed to counter the randomizing effect of Brownian motion in solution, but stable trapping of nanometre-sized objects remains challenging. Optical tweezers are widely used traps, but require sufficiently polarizable objects and thus are unable to manipulate small macromolecules. …”
    Journal article
  3. 363
  4. 364

    Role of Bending Energy and Knot Chirality in Knot Distribution and Their Effective Interaction along Stretched Semiflexible Polymers by Saeed Najafi, Rudolf Podgornik, Raffaello Potestio, Luca Tubiana

    Published 2016-09-01
    “…Specifically, we consider an idealization of a typical optical tweezers experiment and show how the bending rigidity of the chain—And consequently its persistence length—Influences the distribution of the entanglements; possibly more importantly, we observe and report how the relative chirality of the otherwise identical knots substantially modifies their interaction. …”
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    Article
  5. 365

    Coupled spherical-cavities by Stanislav Kreps, Vladimir Shuvayev, Mark Douvidzon, Baheej Bathish, Tom Lenkiewicz Abudi, Amirreza Ghaznavi, Jie Xu, Yang Lin, Lev Deych, Tal Carmon

    Published 2022-12-01
    “…Unlike previous studies, we do not use stems to hold spheres in their positions relying, instead, on optical tweezers to maintain desired structures. The modes of the coupled resonators are excited using a tapered fiber and are observed as resonances with a quality factor as high as 107. …”
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    Article
  6. 366

    Opto-fluidically multiplexed assembly and micro-robotics by Elena Erben, Weida Liao, Antonio Minopoli, Nicola Maghelli, Eric Lauga, Moritz Kreysing

    Published 2024-02-01
    “…Abstract Techniques for high-definition micromanipulations, such as optical tweezers, hold substantial interest across a wide range of disciplines. …”
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    Article
  7. 367

    Generating Bessel-Gaussian Beams with Controlled Axial Intensity Distribution by Nikita Stsepuro, Pavel Nosov, Maxim Galkin, George Krasin, Michael Kovalev, Sergey Kudryashov

    Published 2020-11-01
    “…It is expected that the research results will have practical application in optical tweezers, imaging systems, as well as laser technologies using high-power radiation.…”
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    Article
  8. 368

    Classical and Quantum Gases on a Semiregular Mesh by Davide De Gregorio, Santi Prestipino

    Published 2021-10-01
    “…We argue that a quantum system of the kind described here can be realized with programmable holographic optical tweezers.…”
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    Article
  9. 369

    Pushing nanoparticles with light — A femtonewton resolved measurement of optical scattering forces by C. Zensen, N. Villadsen, F. Winterer, S. R. Keiding, T. Lohmüller

    Published 2016-05-01
    “…We obtain a resolution of less than 3 femtonewtons which is an order of magnitude smaller than any measurement of switchable forces performed on nanoparticles in solution with single beam optical tweezers to date. We compared the results of the force measurement with Mie simulations of the optical scattering force on a gold nanoparticle and found good agreement between experiment and theory within a few fN.…”
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    Article
  10. 370

    Spatial coherence control and analysis via micromirror-based mixed-state ptychography by Ruslan Röhrich, A Femius Koenderink, Stefan Witte, Lars Loetgering

    Published 2021-01-01
    “…Flexible and fast control of the phase and amplitude of coherent light, enabled by digital micromirror devices (DMDs) and spatial light modulators, has been a driving force for recent advances in optical tweezers, nonlinear microscopy, and wavefront shaping. …”
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    Article
  11. 371

    Failure of Debye-Hückel Screening in Low-Charge Colloidal Suspensions by Franceska Waggett, Mohamad Danial Shafiq, Paul Bartlett

    Published 2018-10-01
    “…By measuring the force between individual charged particles at dilute electrolyte concentrations (<mM) using optical tweezers, we tested experimentally the prediction κ − 1 = λ D in a nonpolar solvent. …”
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    Article
  12. 372

    Optical Force of Bessel Pincer Light-Sheets Beam on a Dielectric Sphere of Arbitrary Size by Shu Zhang, Bing Wei, Qun Wei, Renxian Li, Shiguo Chen, Ningning Song

    Published 2022-10-01
    “…However, the beam scaling parameter and beam order of Bessel pincer light sheets beam have a very sharp impact on the convergence position, distribution range and bending degree far away from the wave source of the radiation force. Single-beam optical tweezers using the self-focusing and self-bending Bessel pincer light-sheets beam are crucial for applications such as single molecule biophysics, optical manipulation and particle separation/clearing.…”
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    Article
  13. 373
  14. 374

    Parallel Implementation of High-Fidelity Multiqubit Gates with Neutral Atoms by Levine, Harry, Keesling, Alexander, Semeghini, Giulia, Omran, Ahmed, Wang, Tout T, Ebadi, Sepehr, Bernien, Hannes, Greiner, Markus, Vuletić, Vladan, Pichler, Hannes, Lukin, Mikhail D

    Published 2022
    “…The gates are mediated by excitation to strongly interacting Rydberg states and are implemented in parallel on several clusters of atoms in a one-dimensional array of optical tweezers. Specifically, we realize the controlled-phase gate, enacted by a novel, fast protocol involving only global coupling of two qubits to Rydberg states. …”
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    Article
  15. 375

    Observer based adaptive control for optical manipulation of cell by Cheah, Chien Chern, Li, X.

    Published 2014
    “…The dynamics of the robotic manipulator of the laser source is introduced in the optical tweezers system, so that a closed-loop control method is formulated and solved, and a backstepping approach is used to derive a control input for the manipulator. …”
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    Conference Paper
  16. 376

    Effect of temperature and nucleotide on the binding of BiP chaperone to a protein substrate by Rivera, M, Burgos-Bravo, F, Engelberger, F, Asor, R, Lagos-Espinoza, MIA, Figueroa, M, Kukura, P, Ramírez-Sarmiento, CA, Baez, M, Smith, SB, Wilson, CAM

    Published 2023
    “…Here we study BiP's binding to its substrate at the single molecule level using thermo-regulated optical tweezers which allows us to mechanically unfold the client protein and explore the effect of temperature and different nucleotides on BiP binding. …”
    Journal article
  17. 377

    Tension induces a base-paired overstretched DNA conformation. by Bosaeus, N, El-Sagheer, A, Brown, T, Smith, S, Akerman, B, Bustamante, C, Nordén, B

    Published 2012
    “…Here, we resolve this controversy by using optical tweezers to extend small 60-64 bp single DNA duplex molecules whose base content can be designed at will. …”
    Journal article
  18. 378

    Combining single-molecule manipulation and peptide nucleic acid binding studies for unraveling how RNA structures regulate ribosomal frameshifting and alternative splicing by Yang, Lixia

    Published 2019
    “…Here, we combined single-molecule manipulation using optical tweezers and peptide nucleic acids binding studies to unravel the biophysical properties of model RNA hairpins and disease-related RNA structures, and their correlations with minus-one ribosomal frameshifting and pre-mRNA alternative splicing activities. …”
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    Thesis
  19. 379

    Investigation of metal ion binding biomolecules one molecule at a time by Micaela de la Torre, Adam Pomorski

    Published 2024-04-01
    “…In this review we focus on single molecule methods, such as single molecule FRET, nanopores and optical tweezers that are used to study metal ion binding biomolecules. …”
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    Article
  20. 380

    Optically driven microtools with an antibody‐immobilised surface for on‐site cell assembly by Shuntaro Mori, Takumi Ito, Hidekuni Takao, Fusao Shimokawa, Kyohei Terao

    Published 2023-05-01
    “…The microtool containing antibodies for CD51/61 and CD44 proteins was manipulated using optical tweezers to capture HeLa cells placed on a microfluidic device. …”
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    Article