Micro- and nano-particle manipulation by dielectrophoresis: devices for particle trapping and the influence of steric effects

2008 ◽  
Vol 5 (12) ◽  
pp. 3794-3797 ◽  
Author(s):  
N. G. Loucaides ◽  
A. Ramos ◽  
G. E. Georghiou
Keyword(s):  
Steric Effects ◽  
Nano Particle ◽  
Particle Manipulation ◽  
Particle Trapping

Micro and Nano Particle Manipulation Using Optically Modulated Electrokinetic Flows

2009 ◽  
Author(s):  
Stuart J. Williams ◽  
Aloke Kumar ◽  
Steven T. Wereley
Keyword(s):  
Surface Modification ◽  
Parallel Plate ◽  
Near Infrared ◽  
Lab On A Chip ◽  
Nano Particle ◽  
Particle Manipulation ◽  
Physical Mechanisms ◽  
Particle Sorting ◽  
Electrokinetic Flows ◽  
Optically Induced

Recently, we have demonstrated an optically induced AC electrokinetic technique that rapidly, continuously and selectively concentrates colloids on an electrode surface [1–3]. This is demonstrated with a highly focused near-infrared (1,064 nm) laser beam applied to parallel plate electrodes separated by 50 μm without any additional surface modification or patterning of the electrodes. This dynamic optically-induced technique can be applied towards a variety of lab-on-a-chip applications. This paper will explain its physical mechanisms and showcase recent results regarding its particle sorting capabilities. This dynamic, optically induced fluid and particle manipulation technique could be used for a variety of lab-on-a-chip applications.

Nano-pyramid arrays for nano-particle trapping

2016 ◽  
Author(s):  
Xingwu Sun ◽  
Henk-Willem Veltkamp ◽  
Erwin J. W. Berenschot ◽  
Han J. G. E. Gardeniers ◽  
Niels R Tas
Keyword(s):  
Nano Particle ◽  
Particle Trapping

scholarly journals The hand of light for micro/nano-particle manipulation: research progress of optical tweezers

2020 ◽  
Vol 37 (5) ◽  
pp. 441-458
Author(s):  
Changjun MIN ◽  
Yunqi YUAN ◽  
Yuquan ZHANG ◽  
Xianyou WANG ◽  
Zhibin ZHANG ◽  
...  
Keyword(s):  
Optical Tweezers ◽  
Research Progress ◽  
Nano Particle ◽  
Particle Manipulation

scholarly journals Acoustic tweezer with complex boundary-free trapping and transport channel controlled by shadow waveguides

2021 ◽  
Vol 7 (34) ◽  
pp. eabi5502
Author(s):  
Junfei Li ◽  
Chen Shen ◽  
Tony Jun Huang ◽  
Steven A. Cummer
Keyword(s):  
Single Pair ◽  
Particle Manipulation ◽  
Particle Trapping ◽  
Transport Channel ◽  
Complex Particle ◽  
Input Signals ◽  
Wave Patterns ◽  
Complex Boundary ◽  
Acoustic Tweezers ◽  
Contact Free

Acoustic tweezers use ultrasound for contact-free, bio-compatible, and precise manipulation of particles from millimeter to submicrometer scale. In microfluidics, acoustic tweezers typically use an array of sources to create standing wave patterns that can trap and move objects in ways constrained by the limited complexity of the acoustic wave field. Here, we demonstrate spatially complex particle trapping and manipulation inside a boundary-free chamber using a single pair of sources and an engineered structure outside the chamber that we call a shadow waveguide. The shadow waveguide creates a tightly confined, spatially complex acoustic field inside the chamber without requiring any interior structure that would interfere with net flow or transport. Altering the input signals to the two sources creates trapped particle motion along an arbitrary path defined by the shadow waveguide. Particle trapping, particle manipulation and transport, and Thouless pumping are experimentally demonstrated.

Dielectrophoretic borophene tweezer: Sub-10 mV nano-particle trapping

2020 ◽  
Vol 527 ◽  
pp. 146859
Author(s):  
Shima Ghamari ◽  
Mahyar Dehdast ◽  
Hamidreza Habibiyan ◽  
Mahdi Pourfath ◽  
Hassan Ghafoorifard
Keyword(s):  
Nano Particle ◽  
Particle Trapping
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