New strategy in design of single-use burst microfluidic valves is based on the physico-chemical properties of the valve actuator. The different dissolution rates of salt-based actuators allowed the control of the timing of the opening of the autonomous timed microfluidic valves in the range of seconds to a few minutes by using, as dissolvable actuators, NaCl crystals and for range between several minutes and hours by using actuators made of CuSO4 crystals. Autonomous timed microfluidic valves are successfully used to determine the concentration distribution of a contaminant tracer in groundwater at scheduled times.

A physico-chemical timer: autonomous time-delayed microfluidic valves for environmental applications

TUCCITTO, NUNZIO
2016-01-01

Abstract

New strategy in design of single-use burst microfluidic valves is based on the physico-chemical properties of the valve actuator. The different dissolution rates of salt-based actuators allowed the control of the timing of the opening of the autonomous timed microfluidic valves in the range of seconds to a few minutes by using, as dissolvable actuators, NaCl crystals and for range between several minutes and hours by using actuators made of CuSO4 crystals. Autonomous timed microfluidic valves are successfully used to determine the concentration distribution of a contaminant tracer in groundwater at scheduled times.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11769/253136
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