Results 21 to 30 of about 113,267 (368)
Single-Beam Acoustic Tweezer Prepared by Lead-Free KNN-Based Textured Ceramics
Micromachines, 2022 Acoustic tweezers for microparticle non-contact manipulation have attracted attention in the biomedical engineering field. The key components of acoustic tweezers are piezoelectric materials, which convert electrical energy to mechanical energy. The most
Yi Quan +17 more
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Exploring cell and tissue mechanics with optical tweezers.
Journal of Cell Science, 2022 Cellular and tissue biosystems emerge from the assembly of their constituent molecules and obtain a set of specific material properties. To measure these properties and understand how they influence cellular function is a central goal of mechanobiology ...
Frederic Català-Castro +2 more
semanticscholar +1 more source
Plasmonic Optical Tweezers for Particle Manipulation: Principles, Methods, and Applications.
ACS Nano, 2021 Inspired by the idea of combining conventional optical tweezers with plasmonic nanostructures, a technique named plasmonic optical tweezers (POT) has been widely explored from fundamental principles to applications.
Yatao Ren +5 more
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Optical tweezers and their applications [PDF]
Journal of Quantitative Spectroscopy and Radiative Transfer, 2018 Optical tweezers, tools based on strongly focused light, enable optical trapping, manipulation, and characterisation of a wide range of microscopic and nanoscopic materials. In the limiting cases of spherical particles either much smaller or much larger than the trapping wavelength, the force in optical tweezers separates into a conservative gradient ...
P. Polimeno +10 more
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Holographic Optical Tweezers: Techniques and Biomedical Applications
Applied Sciences, 2022 Holographic optical tweezers (HOT) is a programmable technique used for manipulation of microsized samples. In combination with computer-generation holography (CGH), a spatial light modulator reshapes the light distribution within the focal area of the ...
H. Chen, Chau-Jern Cheng
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Heat in optical tweezers [PDF]
SPIE Proceedings, 2013 Laser-induced thermal effects in optically trapped microspheres and single cells have been investigated by Luminescence Thermometry. Thermal spectroscopy has revealed a non-localized temperature distribution around the trap that extends over tens of microns, in agreement with previous theoretical models.
William T. Ramsay +16 more
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Optical Frequency Tweezers [PDF]
Physical Review Applied, 2022 We show a concept of optical frequency tweezers for tweezing light in the optical frequency domain with a high resolution, which is the frequency version of the optical tweezers for spatial manipulation of microscopic objects. We report the proof-of-principle experiment via frequency conversion inside a cavity only for the converted light.
Rikizo Ikuta +4 more
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Nature Communications, 2021 Surface-enhanced Raman spectroscopy (SERS) has emerged as a powerful tool to detect biomolecules in aqueous environments. However, it is challenging to identify protein structures at low concentrations, especially for the proteins existing in an ...
Xin Dai +7 more
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The optical tweezer of skyrmions [PDF]
npj Computational Materials, 2020 AbstractIn a spin-driven multiferroic system, the magnetoelectric coupling has the form of effective dynamical Dzyaloshinskii–Moriya (DM) interaction. Experimentally, it is confirmed, for instance, for Cu2OSeO3, that the DM interaction has an essential role in the formation of skyrmions, which are topologically protected magnetic structures.
Levan Chotorlishvili +10 more
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Thermophoretic tweezers for single nanoparticle manipulation
Beilstein Journal of Nanotechnology, 2020 We present the trapping and manipulation of a single nano-object in an aqueous medium by optically induced temporally varying temperature gradients. By real-time object tracking and control of the position of the heating laser focus, we can precisely ...
Jošt Stergar, Natan Osterman
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