TITLE

Hydrodynamic trap for single particles and cells

AUTHOR(S)
Tanyeri, Melikhan; Johnson-Chavarria, Eric M.; Schroeder, Charles M.
PUB. DATE
May 2010
SOURCE
Applied Physics Letters;5/31/2010, Vol. 96 Issue 22, p224101
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Trapping and manipulation of microscale and nanoscale particles is demonstrated using the sole action of hydrodynamic forces. We developed an automated particle trap based on a stagnation point flow generated in a microfluidic device. The hydrodynamic trap enables confinement and manipulation of single particles in low viscosity (1–10 cP) aqueous solution. Using this method, we trapped microscale and nanoscale particles (100 nm–15 μm) for long time scales (minutes to hours). We demonstrate particle confinement to within 1 μm of the trap center, corresponding to a trap stiffness of ∼10-5–10-4 pN/nm.
ACCESSION #
51227036

 

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