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Liquid core hydrogel optical fiber, preparation method and application of liquid core hydrogel optical fiber, liquid core hydrogel optical fiber probe sensor and application of liquid core hydrogel optical fiber probe sensor

A technology of fiber optic probe and hydrogel, which is applied in the field of fiber optics, can solve the problems of insufficient combination of sensing materials and measured objects, difficulty in reusing fiber optic probes, and difficulty in elution of sensing materials, etc., to achieve reusability High efficiency, wide application range, good flexibility

Active Publication Date: 2022-03-11
HUAQIAO UNIVERSITY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, what the above-mentioned prior art prepares is a solid-core hydrogel optical fiber, and its light transmission loss is high when used as a light-transmitting optical fiber; The analyte is not fully combined and will react with the analyte, and the sensing material and the analyte are not easy to elute, making the above fiber optic probe difficult to reuse

Method used

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  • Liquid core hydrogel optical fiber, preparation method and application of liquid core hydrogel optical fiber, liquid core hydrogel optical fiber probe sensor and application of liquid core hydrogel optical fiber probe sensor
  • Liquid core hydrogel optical fiber, preparation method and application of liquid core hydrogel optical fiber, liquid core hydrogel optical fiber probe sensor and application of liquid core hydrogel optical fiber probe sensor
  • Liquid core hydrogel optical fiber, preparation method and application of liquid core hydrogel optical fiber, liquid core hydrogel optical fiber probe sensor and application of liquid core hydrogel optical fiber probe sensor

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preparation example Construction

[0041] The raw materials for the preparation of the hollow hydrogel core include the first hydrogel monomer, photoinitiator and water;

[0042] The raw materials for the preparation of the hydrogel coating include a second hydrogel monomer, calcium chloride and water; the refractive index of the second hydrogel monomer is smaller than that of the first hydrogel monomer;

[0043] The liquid core includes a light transmitting liquid core or a sensing liquid core.

[0044] In the present invention, the first hydrogel monomer preferably includes one or more of polyethylene glycol diacrylate, alginic acid, polymethylmethacrylate, polyvinyl alcohol and polylactic acid-glycolic acid copolymer. kind. In the present invention, the photoinitiator preferably includes 2-hydroxyl-2-methyl-1-phenyl-1-propanone and / or 2-hydroxyl-4-(2-hydroxyethoxy)-2-methanone Propiophenone. In the present invention, the inner diameter of the hollow hydrogel core is 0.5 to 1 mm, more preferably 0.6 to 0.9...

Embodiment 1

[0081] Mix 1081.2 μL of polyethylene glycol diacrylate, 55.7 μL of 2-hydroxy-2-methyl-1-phenyl-1-acetone photoinitiator and 1863.1 μL of deionized water, and degas it through an ultrasonic cleaner for 20 minutes to obtain 3 mL of hydrogel precursor solution.

[0082] Put a hollow silicone tube with an inner diameter of 0.50 mm into a hollow silicone tube with an inner diameter of 2 mm to obtain a coaxial sleeve, inject the hydrogel precursor solution into the annular area of ​​the coaxial sleeve with a syringe and place it at 365 ~405nm UV light source for 5min, push out the coaxial hollow silica gel sleeve with deionized water, and get the hollow hydrogel core;

[0083] Inject the aqueous solution of molecular beacon and nucleic acid aptamer (the concentration of molecular beacon is 1 μ mol / L; The concentration of nucleic acid aptamer is 1 μ mol / L) in described hollow hydrogel fiber core, carry out with UV glue at both ends. Closed to obtain the liquid core hydrogel core.

...

Embodiment 2

[0087] Mix 1081.2 μL of polyethylene glycol diacrylate, 55.7 μL of 2-hydroxy-2-methyl-1-phenyl-1-acetone photoinitiator and 1863.1 μL of deionized water, and degas it through an ultrasonic cleaner for 20 minutes to obtain 3 mL of hydrogel precursor solution.

[0088] Put a hollow silicone tube with an inner diameter of 0.50 mm into a hollow silicone tube with an inner diameter of 2 mm to obtain a coaxial sleeve, inject the hydrogel precursor solution into the annular area of ​​the coaxial sleeve with a syringe and place it at 365 ~405nm UV light source for 5min, push out the coaxial hollow silica gel sleeve with deionized water, and get the hollow hydrogel core;

[0089] CdSe / ZnS QDs aqueous solution (particle diameter is 10~12nm, concentration is 1 μ mol / L) in described hollow hydrogel fiber core, inserts the quartz optical fiber that core diameter is 105 μ m then at one end, seals and seals with UV glue The silica optical fiber was fixed, and the other end was sealed with U...

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Abstract

The invention provides a liquid core hydrogel optical fiber, a preparation method and application of the liquid core hydrogel optical fiber, a liquid core hydrogel optical fiber probe sensor and application of the liquid core hydrogel optical fiber probe sensor, and belongs to the technical field of optical fibers. The liquid core hydrogel optical fiber provided by the invention comprises a hollow hydrogel fiber core, a liquid core located in the hollow hydrogel fiber core, and a hydrogel wrapping layer wrapping the surface of the hollow hydrogel fiber core, the two ends of the hollow hydrogel fiber core are provided with UV glue seals. Light energy of the liquid core hydrogel optical fiber is mainly distributed in a liquid core in a concentrated mode, locality is good, light transmission loss is low, collection efficiency is high, and detection sensitivity is high. The liquid core is eluted or replaced to realize reutilization, so that the reutilization rate is high; by changing the type of the sensing liquid core or the light transmission liquid core in the liquid core, detection of various substances can be realized, and the liquid core is good in flexibility, high in expandability and wide in application field, and has a good application prospect in the aspect of detection of metal ions, medicines and biotoxins.

Description

technical field [0001] The invention relates to the field of optical fiber technology, in particular to a liquid-core hydrogel optical fiber and its preparation method and application, a liquid-core hydrogel optical fiber probe sensor and its application. Background technique [0002] With the development of information technology, optical fiber sensing technology has become active rapidly. Optical fiber sensing is a new type of sensing technology that uses light waves as the carrier and optical fiber as the medium to perceive and transmit external measured signals. Optical fiber sensing technology has the advantages of small size, light weight, strong chemical corrosion resistance, strong anti-electromagnetic interference ability, safe use, remote detection and real-time monitoring, etc., and is widely used in instant detection instruments for biochemical samples. Most of the existing optical fiber materials are quartz optical fiber or plastic optical fiber. Although the b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/12C08L55/00C08F299/02C08F2/48G01N21/552G01N21/64G01N21/65
CPCC08J7/12C08F299/024C08F2/48G01N21/658G01N21/554G01N21/6428C08J2355/00G01N2021/6432G01N2021/6439
Inventor 刘婷丁鹤湛程森黄建伟
Owner HUAQIAO UNIVERSITY
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