Printed paper microfluidic chip and fabrication method

Abstract

The invention discloses a printing type paper microfluid chip and a manufacture method thereof. The chip comprises one or an integrated component of a paper base, an electrode formed by conductive metal ink, a heater, a thermosensitive sensor, a photosensitive sensor, a magneto-dependent sensor, a piezoelectric sensor, a humidity-dependent sensor, an electrochemical sensor and an electrode array electric wetting pump. The printing type paper microfluid chip and the manufacture method thereof provided by the invention have the advantages that a low-melting-point liquid metal ink is introduced, sensor pieces arranged on the whole chip can be directly manufactured in a printing manner, so that the chip is obtained; the chip is finished in a preparation process under the normal temperature and normal condition, the common biodegradability paper is adopted as a base, the environmental requirement is not high, the complexity of the preparation technology of the microfluid chip is remarkably reduced, the manufacture efficiency is greatly improved, and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of microfluidic chips, in particular to a printed paper microfluidic chip and a manufacturing method thereof. Background technique [0002] Micro / nanofluidic devices are an important branch of MEMS. Because it has the characteristics of small size, small invalid volume, low power consumption, high control precision, fast response speed, etc., and it is easy to batch process and realize the integration of fluid devices and control circuits such as micro pumps, micro valves, micro flow sensors, etc., so in There are increasingly widespread applications in many fields. In the past few decades, with the wide application of microfluidic systems in disease detection, biochemical analysis, DNA sequencing, drug screening and delivery, in vivo environment detection and other biotechnology, the miniaturization of sample analysis and detection process has become a One of the most important research areas in systems t...

AI Technical Summary

Problems solved by technology

However, the great difficulty faced by paper microfluidic device technology lies in the fabrication of various sensors on its surface. Even devices such as electrodes can only be realized through complex processes such as high-temperature evaporation and electrochemical reactions. Great impact or even impossible to process, high energy consumption and high cost of pollution treatment in the production process

Therefore, no microfluidic chip that can directly print electrical sensors on paper in one step has not been developed so far.

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