Results 1 to 10 of about 53,610 (191)
Simultaneous measurements of electrophoretic and dielectrophoretic forces using optical tweezers [PDF]
, 2015 Herein, charged microbeads handled with optical tweezers are used as a sensitive probe for simultaneous measurements of electrophoretic and dielectrophoretic forces.
Pesce, Giuseppe +3 more
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Optical Tweezers: Phototoxicity and Thermal Stress in Cells and Biomolecules
Micromachines, 2019 For several decades optical tweezers have proven to be an invaluable tool in the study and analysis of myriad biological responses and applications. However, as with every tool, they can have undesirable or damaging effects upon the very sample they are ...
Alfonso Blázquez-Castro
doaj +1 more source
Real-time optical micro-manipulation using optimized holograms generated on the GPU
, 2010 Holographic optical tweezers allow the three dimensional, dynamic, multipoint manipulation of micron sized dielectric objects. Exploiting the massive parallel architecture of modern GPUs we can generate highly optimized holograms at video frame rate ...
Ahrenberg +22 more
core +1 more source
Measurement of the total optical angular momentum transfer in optical tweezers [PDF]
, 2006 We describe a way to determine the total angular momentum, both spin and orbital, transferred to a particle trapped in optical tweezers. As an example an LG02 mode of a laser beam with varying degrees of circular polarisation is used to trap and rotate ...
Heckenberg, Norman R. +4 more
core +2 more sources
Comment on ''Measurement of Effective Temperatures in an Aging Colloidal Glass'' [PDF]
, 2007 We measure the fluctuations of the position of a silica bead trapped by an optical tweezers during the aging of a Laponite suspension.
Ciliberto, Sergio +2 more
core +2 more sources
Optically controlled grippers for manipulating micron-sized particles [PDF]
, 2007 We report the development of a joystick controlled gripper for the real-time manipulation of micron-sized objects, driven using holographic optical tweezers (HOTs).
Ashkin A +8 more
core +3 more sources
, 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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Polygonal micro-whirlpools induced in ferrofluids
, 2015 We report on the observation of the polygonal whirlpools in the thin layer of ferrofluid under illumination with a laser beam carrying optical vortex and in the presence of a vertical magnetic field. This kind of structures have attracted attention after
Bacia, Marcin +4 more
core +1 more source
Spatially selective manipulation of cells with single-beam acoustical tweezers
Nature Communications, 2020 Acoustical tweezers can exert forces several orders of magnitude greater than optical tweezers but the absence of spatial selectivity and their limited resolution has prevented their use for many applications in microbiology.
Michael Baudoin +9 more
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Optical trapping and optical binding using cylindrical vector beams
Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2011 We report on the use of cylindrical vector beams for optical manipulation of micron and sub-micron sized particles using the methods of a single-beam gradient force trap (optical tweezers) and an evanescent-field surface trap (optical binding).
S. E. Skelton +5 more
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