Filters








505 Hits in 5.5 sec

Real-Time Path Planning for Coordinated Transport of Multiple Particles Using Optical Tweezers

Ashis Gopal Banerjee, Sagar Chowdhury, Wolfgang Losert, Satyandra K. Gupta
2012 IEEE Transactions on Automation Science and Engineering  
Automated transport of multiple particles using optical tweezers requires real-time path planning to move them in coordination by avoiding collisions among themselves and with randomly moving obstacles  ...  For example, cell sorting in optical tweezers-assisted fluidic chambers is aiding tumor immunology and chemotherapy, multi-cellular arrangements are being used to study inter-cell signaling, drug transport  ...  ACKNOWLEDGMENT We would like to gratefully acknowledge the help of Atul Thakur and Chenlu Wang in conducting the experiments.  ... 
doi:10.1109/tase.2012.2200102 fatcat:6shvd5wqlvbzjjjmptygsx2eay

A Versatile Optoelectronic Tweezer System for Micro-Objects Manipulation: Transportation, Patterning, Sorting, Rotating and Storage

Shuzhang Liang, Yuqing Cao, Yuguo Dai, Fenghui Wang, Xue Bai, Bin Song, Chaonan Zhang, Chunyuan Gan, Fumihito Arai, Lin Feng
2021 Micromachines  
Optical microscopic patterns for trapping, storing, parallel transporting, and patterning microparticles were designed for versatile manipulation.  ...  In this work, we designed and established an optoelectronic tweezer manipulation system. The OET system could be used to manipulate particles with a wide range of sizes from 2 μm to 150 μm.  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/mi12030271 pmid:33800834 fatcat:fh5uebr2knfupo6y44aguy5yyq

Developing a Stochastic Dynamic Programming Framework for Optical Tweezer-Based Automated Particle Transport Operations

A.G. Banerjee, A. Pomerance, W. Losert, S.K. Gupta
2010 IEEE Transactions on Automation Science and Engineering  
Automated particle transport using optical tweezers requires the use of motion planning to move the particle while avoiding collisions with randomly moving obstacles.  ...  This paper deals with directed assembly using optical fields that is useful for prototyping new design concepts, repairing devices, and creating templates for self-assembly.  ...  More recently, it has been used for real-time path planning of multiple virtual agents in dynamic environments in [17] .  ... 
doi:10.1109/tase.2009.2026056 fatcat:acoxvpcjnncnpmycovawwp6opm

Research in Automated Planning and Control for Micromanipulation

Ashis Gopal Banerjee, Satyandra K. Gupta
2013 IEEE Transactions on Automation Science and Engineering  
objectives of optimizing resource, time, and effort, by planning suitable actions for the manipulated objects.  ...  Note to Practitioners -Micro manipulation involving translation, rotation, and deformation of micro scale objects, can be used for various operations such as transport, arrangement, separation, and property  ...  ACKNOWLEDGEMENTS We would like to gratefully acknowledge the help of S. Chowdhury and P. Svec in preparing the manuscript.  ... 
doi:10.1109/tase.2013.2260539 fatcat:eqtrdqj4ijappbjwabmfzxjd6m

Automated Indirect Transportation of Biological Cells with Optical Tweezers and a 3D Printed Microtool

Songyu Hu, Heng Xie, Tanyong Wei, Shuxun Chen, Dong Sun
2019 Applied Sciences  
Optical tweezers are widely used for noninvasive and precise micromanipulation of living cells to understand biological processes.  ...  Second, indirect optical transportations of cells, with and without an obstacle, were performed to demonstrate the effectiveness of the proposed approach.  ...  Three optical traps were employed to push cells through transporting and rotating the microtool with the control strategy and real-time visual feedback.  ... 
doi:10.3390/app9142883 fatcat:55bucjl5inhyzf4brc25la4hmm

Optical Tweezers: Autonomous Robots for the Manipulation of Biological Cells

Ashis Banerjee, Sagar Chowdhury, Satyandra K. Gupta
2014 IEEE robotics & automation magazine  
The opinions expressed in this paper are those of the authors and do not necessarily reflect the opinions of the sponsors.  ...  Successful manipulation then depends not only on finding collision-free paths (defined using waypoint sequences) for the cells using an A* planner but also on the coordinated transport of the gripper fingers  ...  workspace in real time.  ... 
doi:10.1109/mra.2014.2332407 fatcat:naghzwwa3fg7tmfjeymip7olfe

Dexterous holographic trapping of dark-seeking particles with Zernike holograms [article]

Jatin Abacousnac, David G. Grier
2022 arXiv   pre-print
DoG traps can be combined with conventional optical tweezers and other types of traps for use in heterogeneous samples.  ...  Dynamic optimization is especially desirable for manipulating dark-seeking particles that are repelled by conventional optical tweezers, and even more so when dark-seeking particles coexist in the same  ...  , and are transported around nominally circular paths in the vertical yz plane.  ... 
arXiv:2203.07408v2 fatcat:y4qb2jtxyzf6toefn7gh4f7noy

Indirect pushing based automated micromanipulation of biological cells using optical tweezers

Atul Thakur, Sagar Chowdhury, Petr Švec, Chenlu Wang, Wolfgang Losert, Satyandra K. Gupta
2014 The international journal of robotics research  
Finally, we have tested the developed planner using our optical tweezers physical setup and carried out a detailed analysis of the experimental results.  ...  We report an automated feedback planning algorithm that combines three motion maneuvers, namely, push, align, and backup for micromanipulation of cells.  ...  Opinions expressed are those of the authors and do not necessarily reflect opinions of the sponsors.  ... 
doi:10.1177/0278364914523690 fatcat:suqrgq7rivg4jb2xq2io3xku6i

Practical lab tool for living cells based on microstereolithography and multiple dynamic holographic optical tweezers

Serge Monneret, Federico Belloni, Didier Marguet, Daniel L. Farkas, Dan V. Nicolau, Robert C. Leif
2006 Imaging, Manipulation, and Analysis of Biomolecules, Cells, and Tissues IV  
Combination of microfluidics, holographic optical tweezers and one supplementary single manually steerable optical tweezers leads to several experimental procedures allowing the sequential or parallel  ...  We here propose an apparatus based on holographic optical tweezers to put on a target cell a twoor three-dimensional custom-built pattern of beads, with respect to the target cell shape, with both temporal  ...  The authors would like to thank Olivier Soppera from the "Département de Photochimie Générale" (Mulhouse, France) for developing the microSL material.  ... 
doi:10.1117/12.646057 fatcat:xyab5n2nq5ggtjwjuoeeu4gd5y

Optically Induced Dielectrophoresis Based Automatic Assembly of Micro/Nano-Devices

M. J. Zheng, Y. L. Qu, Y. Z. Zhang, Z. L. Dong
2013 Integrated Ferroelectrics  
Optically induced dielectrophoresis (ODEP) provides a powerful method for parallel manipulation of micro/nano-scale particles with dynamic optical patterns.  ...  The programed light pattern generation module allows for arbitrary and reconfigurable optical patterns based on the recognition results.  ...  While the optical tweezers [1] offer high resolution for trapping single particles, they can induce adverse effects on biosamples under manipulation due to high focusing optical power requirements.  ... 
doi:10.1080/10584587.2013.788312 fatcat:ctgrxwqcc5afpk6rxr7caztage

Robotic manipulation of micro/nanoparticles using optical tweezers with velocity constraints and stochastic perturbations

Xiao Yan, Chien Chern Cheah, Quang-Cuong Pham, Jean-Jacques E. Slotine
2015 2015 IEEE International Conference on Robotics and Automation (ICRA)  
Various control approaches have been developed for micro/nanomanipulations using optical tweezers.  ...  The dynamics of the trapped particles subject to stochastic perturbations is analyzed.  ...  Real-time path planning was investigated for coordinated transport of multiple particles [24] .  ... 
doi:10.1109/icra.2015.7139269 dblp:conf/icra/YanCPS15 fatcat:zijyj63wrvdldkthsoai2ynhpa

A Practical Review of Microrheological Techniques [chapter]

Bradley W., Stephen Keen, Philipus J., Yacine Hemar, Martin A.K.
2013 Rheology - New Concepts, Applications and Methods  
the transport mean free path of the medium.  ...  using a single laser, in real time [ , ] .  ... 
doi:10.5772/53639 fatcat:s3r373nsu5atxh3wzpoko7d5xa

Micro-OptoMechanical Movements (MOMs) with SoftOxometalates (SOMs): Controlled Motion of Single Soft-Oxometalate Pea-pods Using Exotic Optical Potentials [article]

Basudev Roy, Atharva Sahasrabudhe, Bibudha Parasar, Nirmalya Ghosh, Prasanta Panigrahi, Ayan Banerjee, Soumyajit Roy
2013 arXiv   pre-print
Here we show that it is actually possible to controllably move such an asymmetric SOM-with the shape of a 'pea-pod' along complex paths using tailor-made sophisticated optical potentials created by spin-orbit  ...  We demonstrate motion of individual trapped SOMs along circular paths of more than 15 μm in a perfectly controlled manner by simply varying the input polarization of the trapping laser.  ...  A step towards this direction has been taken in recent times with the advent of holographic optical tweezers which have led to the transport of trapped dielectric objects along pre-designed paths 6 .  ... 
arXiv:1208.1602v2 fatcat:o3o2qp5avjezhbwnkhjtzwjajy

Indirect optical trapping using light driven micro-rotors for reconfigurable hydrodynamic manipulation

Unė G. Būtaitė, Graham M. Gibson, Ying-Lung D. Ho, Mike Taverne, Jonathan M. Taylor, David B. Phillips
2019 Nature Communications  
Optical tweezers are a highly versatile tool for exploration of the mesoscopic world, permitting non-contact manipulation of nanoscale objects.  ...  Our work expands the capabilities of optical tweezers platforms, and represents a new paradigm for manipulation of aqueous mesoscopic systems.  ...  Miles Padgett for access to the optical tweezers equipment used in the work, and Prof. John Rarity for access to the Nanoscribe direct laser writing system used for micro-rotor fabrication.  ... 
doi:10.1038/s41467-019-08968-7 pmid:30872572 pmcid:PMC6418258 fatcat:tb6txafvgrc5zlz2lesf5bfgn4

Roadmap for Optical Tweezers [article]

Giovanni Volpe, Onofrio M. Maragò, Halina Rubinzstein-Dunlop, Giuseppe Pesce, Alexander B. Stilgoe, Giorgio Volpe, Georgiy Tkachenko, Viet Giang Truong, Síle Nic Chormaic, Fatemeh Kalantarifard, Parviz Elahi, Mikael Käll (+71 others)
2022 arXiv   pre-print
Optical tweezers are tools made of light that enable contactless pushing, trapping, and manipulation of objects ranging from atoms to space light sails.  ...  It also offers perspectives for applications to a wide range of research fields, from biophysics to space exploration.  ...  Acknowledgements We acknowledge support by the agreement ASI-INAF n.2018-16-HH.0, project "SPACE Tweezers". Acknowledgements We thank Ashley L. Nord for useful comments.  ... 
arXiv:2206.13789v1 fatcat:yx6jcfgsdvaifhxqzrixifml3u
« Previous Showing results 1 — 15 out of 505 results