Journal
ACS NANO
Volume 8, Issue 8, Pages 8537-8542Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nn503170c
Keywords
glucose; mannitol; self-powered; micropump; sensor; boronate chemistry
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Funding
- Defense Threat Reduction Agency [HDTRA1-13-1-0039]
- Penn State MRSEC [DMR-0820404]
- (UB RAS) of the U.S. Civilian Research & Development Foundation (CRDF Global) [RUP1-7078-PE-12]
- National Science Foundation [OISE-9531011]
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A self-powered polymeric micropump based on boronate chemistry is described. The pump is triggered by the presence of glucose in ambient conditions and induces convective fluid flows, with pumping velocity proportional to the glucose concentration. The pumping is due to buoyancy convection that originates from reaction associated heat flux, as verified from experiments and finite difference modeling. As predicted, the fluid flow increases with increasing height of the chamber. In addition, pumping velocity is enhanced on replacing glucose with mannitol because of the enhanced exothermicity associated with the reaction of the latter.
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