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A microfluidic-based hydrodynamic trap: design and implementation

delete2011-01-01
delete193
PRE
AI
M
Melikhan Tanyeri
M
Mikhil Ranka
N
Natawan Sittipolkul
C
Charles M. Schroeder *
DOI:10.1039/c0lc00709adelete
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Abstract

Abstract

En 中文
We report an integrated microfluidic device for fine-scale manipulation and confinement of micro- and nanoscale particles in free-solution. Using this device, single particles are trapped in a stagnation point flow at the junction of two intersecting microchannels. The hydrodynamic trap is based on active flow control at a fluid stagnation point using an integrated on-chip valve in a monolithic PDMS-based microfluidic device. In this work, we characterize device design parameters enabling precise control of stagnation point position for efficient trap performance. The microfluidic-based hydrodynamic trap facilitates particle trapping using the sole action of fluid flow and provides a viable alternative to existing confinement and manipulation techniques based on electric, optical, magnetic or acoustic force fields. Overall, the hydrodynamic trap enables non-contact confinement of fluorescent and non-fluorescent particles for extended times and provides a new platform for fundamental studies in biology, biotechnology and materials science.
Keywords:
OPTICAL MANIPULATION
SINGLE CELLS
4-ROLL MILL
FLOW
MICROPARTICLES
PARTICLES
TWEEZERS
DYNAMICS
SYSTEM
ARRAY
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Key information extracted from the uploaded paper, including a brief overview, abstract, background, key highlights, visual analysis, and future outlook.

Journal

L
Lab on a Chip
IF:
5.4
Papers:
9.0K
Citations:
3.3W

Organization

University of Illinois System cover
University of Illinois System
Scholars:
6.9W
Papers: 6.2W
Citations: 644
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