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Photo-thermal micro-flow mixer based on single-hole optical fiber

A mixer and optical fiber technology, applied in the field of optofluidics, can solve the problems of complex technology and size requirements, cumbersome preparation methods, and high cost

Active Publication Date: 2020-09-08
GUILIN UNIV OF ELECTRONIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Regardless of whether the above-mentioned microfluidic mixers are based on active or passive or photothermal effects, most of them require complex technical and dimensional requirements, and the preparation methods are cumbersome and costly.

Method used

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  • Photo-thermal micro-flow mixer based on single-hole optical fiber
  • Photo-thermal micro-flow mixer based on single-hole optical fiber
  • Photo-thermal micro-flow mixer based on single-hole optical fiber

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Embodiment Construction

[0041] The present invention will be further explained below in conjunction with the drawings and specific embodiments.

[0042] figure 1 The cross-sectional structure of a single-hole optical fiber is shown. The single-hole optical fiber is composed of air holes 1-1 that can enter the microfluidic liquid, and the core 1-2 and cladding 1-3 have a slightly higher refractive index than the cladding material. consist of.

[0043] image 3 The structure of the single-hole optical fiber is processed and prepared into a light-heat microfluidic mixer. A plurality of micro-holes are prepared outside the air hole. When different kinds of liquid enter the air hole through the micro-hole, due to the position of the fiber core and the air hole Tangent, the light energy will radiate heat to the microfluidic liquid, which will accelerate the movement of liquid molecules to achieve the purpose of mixing.

[0044] Without loss of generality, we take image 3 The specific embodiment of the single-ho...

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Abstract

The invention provides a photo-thermal micro-flow mixer based on a single-hole optical fiber. The photo-thermal micro-flow mixer is characterized by consisting of a section of micro-processed single-hole optical fiber and a light source. A plurality of micropores are formed in the outer side of an air hole, after different kinds of liquid enter the air hole through the micropores, due to the factthat an optical fiber core is tangent to the position of the air hole, heat energy radiation is generated on micro-flow liquid after light energy is introduced, liquid molecules move in an acceleratedmode, and the purpose of mixing is achieved. The single-hole optical fiber photo-thermal micro-flow mixer capable of being used for a micro-fluidic chip is easy to prepare, good in consistency, convenient to use in cooperation with the micro-fluidic chip, convenient and rapid to connect with a light source and suitable for large-scale mass production.

Description

[0001] (1) Technical field [0002] The invention relates to a photothermal microfluidic mixer based on a single-hole optical fiber, which is convenient to be used with a microfluidic chip, and can also replace a microfluidic channel structure unit with a mixing function in the chip in micron-scale operation of trace liquids, belonging to optical fluidic control Technical field. [0003] (2) Background technology [0004] Microfluidics (Microfluidics or Lab-on-a-chip) refers to a system that uses microchannels of tens of microns or hundreds of microns to process or manipulate tiny fluids. After decades of development, microfluidic technology has become a new interdisciplinary subject involving chemistry, fluid physics, optics, microelectronics, new materials, biology and biomedical engineering. Because the sample volume in the microfluidic chip is small, the detection optical path is short, the optical detector with high sensitivity, fast response time, and low power consumption and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F13/00G02B6/02
CPCG02B6/02295B01F33/305
Inventor 苑婷婷张晓彤苑立波
Owner GUILIN UNIV OF ELECTRONIC TECH
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