Unlock instant, AI-driven research and patent intelligence for your innovation.

An optofluidic detection chip for measuring dissolved oxygen in seawater

A detection chip, optofluidic technology, applied in measurement devices, laboratory containers, material analysis by optical means, etc., to achieve the effect of short recovery time and simple invention

Active Publication Date: 2021-09-03
SHENZHEN RES INST OF WUHAN UNIVERISTY
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on hydrogel-coated gold nanoparticles as an optofluidic detection chip encapsulated with a reduction-oxidation band, and a technical solution for detecting dissolved oxygen has not been reported

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • An optofluidic detection chip for measuring dissolved oxygen in seawater
  • An optofluidic detection chip for measuring dissolved oxygen in seawater
  • An optofluidic detection chip for measuring dissolved oxygen in seawater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as figure 1 As shown, the optofluidic detection chip includes: a chip body and an optical fiber part; the chip body includes a polydimethylsiloxane sheet and a glass slide containing a microfluidic channel, and the polydimethylsiloxane sheet The wafer is made by ultraviolet lithography, and the glass slide is bonded to the silicon wafer to form a chamber. The chip body is a chamber with openings at both ends and a microfluidic channel inside. One end is provided with inlets I 11 and II 12, and the other end is provided with outlets I13 and II 14; the inlets I11 and II 12 are connected through the microfluidic channel. to the inside of the chamber and then to the outlet; a reduction-oxidation zone is constructed in the microfluidic channel. Inlet I11 is used to feed sample streams with different concentrations; inlet II 12 is used to feed reducing agent sodium borohydride, the preferred concentration is 10 -4 mol / L. Preferably, the flow rates of the inlets I11 a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an optofluidic detection chip for measuring dissolved oxygen in seawater, which comprises a chip body and an optical fiber part; the chip body is a chamber with openings at both ends and a microfluidic channel inside, one Inlets I and II are provided, and outlets I and II are provided at the other end; inlets I and II are connected to the inside of the chamber through a microfluidic channel and then connected to the outlet; the microfluidic channel is constructed with a reduction-oxidation zone; both ends of the chip body An optical fiber unit is provided. The chip provided by the invention can achieve fast, pollution-free, repeatable detection, and ensure the accuracy and precision of the results; the hydrogel is manipulated at the micron scale, with short response time, integrated design, simple structure, small volume, and high portability . The technical scheme provided by the invention has great application prospect and value.

Description

technical field [0001] The invention belongs to the field of optofluidic detection chips, in particular to an optofluidic detection chip for measuring dissolved oxygen in seawater based on plasmon resonance. Background technique [0002] Ocean dissolved oxygen is one of the important parameters for ocean water quality testing. The concentration of dissolved oxygen in the ocean is about 3-9mg / L. The current mainstream electrode method can only detect the dissolved oxygen concentration of the liquid around the membrane, and cannot work stably in high salinity and microbial environments. The fluorescence quenching method has high requirements on the light source and cannot meet the requirements of portable measurement. Neither of them can avoid membrane fouling, and the specially made oxygen-permeable membrane is easy to wear. The traditional spectrophotometric method needs to pre-react the solution to detect the absorbance value of the product, which leads to problems such ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B01L3/00G01N21/552
CPCB01L3/5027B01L3/502707B01L3/502715B01L3/50273B01L2300/12B01L2300/168G01N21/554
Inventor 杨奕陈龙飞朱娇梦
Owner SHENZHEN RES INST OF WUHAN UNIVERISTY