Results 41 to 50 of about 7,901 (186)
Orbital angular momentum 25 years on [invited] [PDF]
, 2017 Twenty-five years ago Allen, Beijersbergen, Spreeuw, and Woerdman published their seminal paper establishing that light beams with helical phase-fronts carried an orbital angular momentum. Previously orbital angular momentum had been associated only with
Padgett, Miles J.
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Ultrasonic Particle Manipulation in Glass Capillaries: A Concise Review
Micromachines, 2021 Ultrasonic particle manipulation (UPM), a non-contact and label-free method that uses ultrasonic waves to manipulate micro- or nano-scale particles, has recently gained significant attention in the microfluidics community.
Guotian Liu +6 more
doaj +1 more source
, 2020 Three-dimensional harmless contactless manipulation and assembly of micro-objects and micro-organisms would open new horizons in microrobotics and microbiology, e.g. for microsystems assembly or tissue engineering. In our previous work [Gong and Baudoin,
Baudoin, Michael, Gong, Zhixiong
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The Emergence of Functional Ultrasound for Noninvasive Brain–Computer Interface
Research, 2023 A noninvasive brain–computer interface is a central task in the comprehensive analysis and understanding of the brain and is an important challenge in international brain-science research.
Hairong Zheng +7 more
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An adjustable multi-scale single beam acoustic tweezers based on ultrahigh frequency ultrasonic transducer. [PDF]
Biotechnol Bioeng, 2017 Chen X +7 more
europepmc +3 more sources
Acoustic force measurements on polymer-coated microbubbles in a microfluidic device [PDF]
, 2017 This work presents an acoustofluidic device for manipulating coated microbubbles, designed for the simultaneous use of optical and acoustical tweezers. A comprehensive characterization of the acoustic pressure in the device is presented, obtained by the ...
Barsoukov E. +8 more
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Collapse pressure measurement of single hollow glass microsphere using single-beam acoustic tweezer
Ultrasonics Sonochemistry, 2022 Microbubbles are widely used in medical ultrasound imaging and drug delivery. Many studies have attempted to quantify the collapse pressure of microbubbles using methods that vary depending on the type and population of bubbles and the frequency band of ...
Jinhee Yoo +4 more
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Study of “acoustic tweezer” chip for particles driving
MATEC Web of Conferences, 2017 Surface Acoustic Wave (SAW) is one of the sound waves that travel parallel to the surface of an elastic material, and is capable of manipulating microparticles. This SAW device was named acoustic tweezers.
Weibing Zhao +3 more
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Acoustophoretic trapping of particles by bubbles in microfluidics
Frontiers in Physics, 2023 We present in this paper a simple method to produce strategic acoustic particle capture sites in microfluidic channels in a controlled way. Air bubbles are intermittently injected into a micro-capillary with rectangular cross section during a flow motion
Itziar González +3 more
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Stiffer optical tweezers through real-time feedback control [PDF]
, 2008 Using real-time re-programmable signal processing we connect acousto-optic steering and back-focal-plane interferometric position detection in optical tweezers to create a fast feedback controlled instrument.
Haeggstrom, E. +3 more
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