Cited 0 time in webofscience Cited 1 time in scopus

Dumbbell Fluidic Tweezers for Dynamical Trapping and Selective Transport of Microobjects

Title
Dumbbell Fluidic Tweezers for Dynamical Trapping and Selective Transport of Microobjects
Authors
Zhou, Q[Zhou, Qi]Petit, T[Petit, Tristan]Choi, H[Choi, Hongsoo]Nelson, BJ[Nelson, Bradley J.]Zhang, L[Zhang, Li]
DGIST Authors
Choi, H[Choi, Hongsoo]
Issue Date
2017-01
Citation
Advanced Functional Materials, 27(1)
Type
Article
Article Type
Article
Keywords
ActuatorsDumbbellsFinite-Element MethodFluidic TrappingLow Reynolds Number FlowLow Reynolds Number FlowsMagnetic ActuationMagnetic ActuatorsMagnetismMicro VortexMicrovorticesNickelNon-Contact ManipulationReynolds Number
ISSN
1616-301X
Abstract
Mobile microvortices generated by rotating nickel (Ni) nanowires (NW) have been reported as capable of inducing fluidic trapping that can be precisely focused and translated to manipulate microobjects. Here, a new design for significantly enhanced fluidic trapping is reported, which is a dumbbell (DB)-shaped magnetic actuator, assembled by a Ni NW and two polystyrene microbeads. In contrast to the single mode of tumbling trapping possessed by Ni NW, the magnetic dumbbell is able to perform dynamical trapping and implement on-demand transport of microobjects in three modes, i.e., tumbling, wobbling, and rolling. Experiments are conducted to demonstrate the robustness and efficacy of the fluidic trap by the DB actuator. And simulations using a finite element model compare the fluidic traps induced by NW and DB, followed by further discussion on the actuation and transport efficiency of NW and DB fluidic tweezers (FT). At last, some practical issues regarding the application of DB FT are addressed. © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
URI
http://hdl.handle.net/20.500.11750/1533
DOI
10.1002/adfm.201604571
Publisher
Wiley-VCH Verlag
Related Researcher
  • Author Choi, Hong Soo Bio-Micro Robotics Lab
  • Research Interests Micro/Nano robot; Neural prostheses; MEMS; BMI; MEMS/NEMS; BioMEMS; MEMS 초음파 트랜스듀스; 인공와우
Files:
There are no files associated with this item.
Collection:
Robotics EngineeringETC1. Journal Articles


qrcode mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE