Results 31 to 40 of about 16,949 (114)

Switching of three-dimensional optical cages using spatial coherence engineering

APL Photonics
Precisely capturing and manipulating microparticles is the key to exploring microscopic mysteries. Optical tweezers play a crucial role in facilitating these tasks. However, existing optical tweezers are limited by their dependence on specific beam modes,
Ying Xu, Jidong Wu, Xinshun Zhao, Yongtao Zhang, Xinlei Zhu, Yangjian Cai, Jiayi Yu   +6 more
doaj   +1 more source

Creating Custom Neural Circuits on Multiple Electrode Arrays Utilizing Optical Tweezers for Precise Nerve Cell Placement

Methods and Protocols, 2020
Precise creation, maintenance, and monitoring of neuronal circuits would facilitate the investigation of subjects such as neuronal development or synaptic plasticity, or assist in the development of neuronal prosthetics.
Frank H. Kung, Ellen Townes-Anderson
doaj   +1 more source

Dual-Arm Visuo-Haptic Optical Tweezers for Bimanual Cooperative Micromanipulation of Nonspherical Objects

Micromachines, 2022
Cooperative manipulation through dual-arm robots is widely implemented to perform precise and dexterous tasks to ensure automation; however, the implementation of cooperative micromanipulation through dual-arm optical tweezers is relatively rare in ...
Yoshio Tanaka, Ken’ichi Fujimoto
doaj   +1 more source

Multi-frequency passive and active microrheology with optical tweezers

Scientific Reports, 2021
Optical tweezers have attracted significant attention for microrheological applications, due to the possibility of investigating viscoelastic properties in vivo which are strongly related to the health status and development of biological specimens.
Randhir Kumar, Valerio Vitali, Timo Wiedemann, Robert Meissner, Paolo Minzioni, Cornelia Denz   +5 more
doaj   +1 more source

Efficient characterization of red blood cell rheological properties using a multichannel microfluidic chip and optical tweezers

Materials Today Advances
The rheological properties of red blood cells (RBCs) are crucial for human health. Combining optical tweezers with microfluidics provides a non-contact, sensitive, and high-throughput method for studying RBC rheology.
Ying Liu, Hongtao Rao, Hongliang Zhang, Meng Wang, Yinglian Wu, Ying Wu, Caiqin Han, Changchun Yan, Le Zhang, Wei Chen, JingJing Wang   +10 more
doaj   +1 more source

Optical trapping core formation and general trapping mechanism in single-beam optical tweezers

New Journal of Physics, 2022
The working mechanism of single-beam optical tweezers is revisited using a recently established method. The optical force is split into conservative and nonconservative components, and these components are explicitly calculated for particles in the ...
Di Huang, Pengcheng Wan, Ling Zhou, Haiqin Guo, Ruihuang Zhao, Jun Chen, Jack Ng, Junjie Du   +7 more
doaj   +1 more source

Feasibility of Multiple Micro-Particle Trapping—A Simulation Study

Sensors, 2015
Both optical tweezers and acoustic tweezers have been demonstrated for trapping small particles in diverse biomedical applications. Compared to the optical tweezers, acoustic tweezers have deeper penetration, lower intensity, and are more useful in light
Yanyan Yu, Weibao Qiu, Bernard Chiu, Lei Sun   +3 more
doaj   +1 more source

Optical Tweezers Exploring Neuroscience

Frontiers in Bioengineering and Biotechnology, 2020
Over the past decade, optical tweezers (OT) have been increasingly used in neuroscience for studies of molecules and neuronal dynamics, as well as for the study of model organisms as a whole.
Isaac C. D. Lenton, Ethan K. Scott, Halina Rubinsztein-Dunlop, Itia A. Favre-Bulle, Itia A. Favre-Bulle   +4 more
doaj   +1 more source

Plasmonic Tweezers towards Biomolecular and Biomedical Applications

Applied Sciences, 2019
With the capability of confining light into subwavelength scale, plasmonic tweezers have been used to trap and manipulate nanoscale particles. It has huge potential to be utilized in biomolecular research and practical biomedical applications.
Xue Han, Changsen Sun
doaj   +1 more source

Direct observation of the effects of spin dependent momentum of light in optical tweezers

APL Photonics, 2020
We demonstrate that tight focusing of a circularly polarized Gaussian beam in optical tweezers leads to spin-momentum locking—with the transverse momentum density (Poynting vector) being helicity-dependent, while the transverse spin angular momentum ...
Debapriya Pal, Subhasish Dutta Gupta, Nirmalya Ghosh, Ayan Banerjee   +3 more
doaj   +1 more source