A flexible microfluidic pipeline and a flow sensor containing the same

Abstract

The present application provides a microfluidic pipeline and a flow sensor containing the same, wherein the microfluidic pipeline is a non-linear pipeline having at least one curved portion; a portion of the outer surface of the microfluidic pipeline is provided with a nanomaterial coating, wherein the portion of the outer surface at least includes the surface of the curved portion that bends outward, and the resistance of the nanomaterial coating changes with the elongation rate of the nanomaterial coating. In the flow sensor, the nanomaterial coating of the microfluidic pipeline is connected to an electrical property measuring device through at least two wires, and the connecting ends of the nanomaterial coating and the wires are arranged along the extension direction of the microfluidic pipeline. The flow sensor designed in the present application can conveniently and quickly detect the flow of fluid continuously without the sensitive material and the electrode contacting the internal fluid, and has the characteristics of not affecting the performance of the fluid itself, being less interfered by external signals, having high measurement accuracy, and being able to perform continuous long-term detection.

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