000263891 001__ 263891
000263891 005__ 20190316233222.0
000263891 0247_ $$2doi$$a10.1039/C8LC01024B
000263891 02470 $$2DOI$$a10.1039/C8LC01024B
000263891 037__ $$aARTICLE
000263891 245__ $$aLatchable microfluidic valve arrays based on shape memory polymer actuators
000263891 260__ $$c2019-02-12
000263891 269__ $$a2019-02-12
000263891 336__ $$aJournal Articles
000263891 520__ $$aWe report arrays of latching microfluidic valves based on shape memory polymers (SMPs), and show their applications as reagent mixers and as peristaltic pumps. The valve design takes advantage of the SMP's multiple stable shapes and over a hundred-fold stiffness change with temperature to enable a) permanent zero-power latching in either open or closed positions (>15 h), as well as b) extended cyclic operation (>3000 cycles). The moving element in the valves consists of a tri-layer with a 50 μm thick central SMP layer, 25 μm thick patterned carbon-silicone (CB/PDMS) heaters underneath, and a 38 μm thick styrene ethylene butylene styrene (SEBS) impermeable film on top. Each valve of the array is individually addressable by synchronizing its integrated local Joule heating with a single external pressure supply. This architecture significantly reduces the device footprint and eliminates the need for multiplexing in microfluidic large scale integration (mLSI) systems.
000263891 536__ $$aFNS$$c200020-165993
000263891 542__ $$fCC BY-NC
000263891 700__ $$aAksoy, Bekir
000263891 700__ $$aBesse, Nadine
000263891 700__ $$aBoom, Robert Jan
000263891 700__ $$aHoogenberg, Bas-Jan
000263891 700__ $$aBlom, Marko
000263891 700__ $$aShea, Herbert
000263891 773__ $$j19$$k4$$q608-617$$tLab on a Chip
000263891 8560_ $$fherbert.shea@epfl.ch
000263891 8564_ $$s7188651$$uhttps://infoscience.epfl.ch/record/263891/files/LOC%20aksoy%20besse.pdf$$zFinal
000263891 909C0 $$0252107$$mherbert.shea@epfl.ch$$pLMTS$$xU10955$$zMarselli, Béatrice
000263891 909CO $$ooai:infoscience.epfl.ch:263891$$pSTI$$particle$$qGLOBAL_SET
000263891 960__ $$aherbert.shea@epfl.ch
000263891 961__ $$afantin.reichler@epfl.ch
000263891 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000263891 980__ $$aARTICLE
000263891 981__ $$aoverwrite