Microfluidic Chip
A microfluidic chip and liquid flow technology, which is applied in the field of nutrient solution detection, can solve the problems of insufficient mixing, large space occupation of instruments and equipment, and cumbersome operation steps, so as to improve mixing efficiency, reduce pressure, and increase contact area. Effect
Active Publication Date: 2020-07-28
CHINA AGRI UNIV
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Problems solved by technology
[0005] The embodiment of the present invention provides a microfluidic chip, which is used to solve or partially solve the problems of large equipment volume, cumbersome operation steps and insufficient mixing in most of the existing mixers.
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[0012] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0013] Such as figure 1 As shown, the embodiment of the present invention provides a microfluidic chip, including a glass substrate and a mixed substrate, the lower surface of the mixed substrate is attached to the upper surface of the glass substrate, and the lower surface of the mixed substrate is provided with a spiral mixing concave Groo...
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Abstract
The invention relates to the technical field of nutrient solution detection, and provides a microfluidic chip. The microfluidic chip comprises a glass substrate and a mixing substrate, wherein the lower surface of the mixing substrate is attached to the upper surface of the glass substrate; a spiral mixing groove is arranged on the lower surface of the mixing substrate; a mixing channel is formedby the mixing groove and the upper surface of the glass substrate; a vertical connecting channel for conveying liquid to the mixing channel is arranged through the thickness direction of the mixing substrate; the vertical connecting channel is communicated with the mixing channel at the starting point of the inner ring of the spiral mixing groove; and the section width of the mixing groove is gradually increased along the flowing direction of the liquid in the mixing channel. According to the microfluidic chip, the gradually enlarged spiral mixing channel is arranged, so that the solution is rapidly, efficiently and conveniently mixed and detected in the nutrient solution detection process, and the problems that most of existing mixers have large equipment size, complicated operation stepsand insufficient mixing are solved.
Description
technical field [0001] The invention relates to the technical field of nutrient solution detection, in particular to a microfluidic chip. Background technique [0002] As one of the key technologies of protected gardening, soilless cultivation technology plays an important role in resource conservation, environmental protection, emission reduction, production increase, and sustainable development. Nutrient solution is the core of soilless cultivation technology, and its composition directly affects the absorption and growth of nutrients by crops. Therefore, according to specific conditions such as crop types, different growth periods, and climatic conditions, the nutrient solution can be determined quickly, accurately, and efficiently. The composition of the liquid is particularly important. Ion-selective electrode refers to an electrode with a sensitive membrane that can selectively respond to ions or molecular substances. It has the characteristics of specificity and ease...
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IPC IPC(8): B01L3/00
CPCB01L3/5027
Inventor 张淼阳清亮汪懋华刘刚陈铭郑杰
Owner CHINA AGRI UNIV