Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Luminescent carbon quantum dot as well as preparation method and application thereof

A technology of carbon quantum dots and reaction solutions, applied in luminescent materials, chemical instruments and methods, nano optics, etc., can solve weak interaction and other problems, achieve low toxicity, good photostability, and little change in emission spectrum

Active Publication Date: 2018-09-28
ZHENGZHOU UNIV
View PDF1 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Among the 20 kinds of amino acids that make up proteins, arginine is one of the amino acids that can form the most diverse proteins in animals. It is not only the precursor of protein synthesis, but also produces nitric oxide, urea, polyamines, proline, gluten It is the precursor of amino acid, creatine and agmatine, etc. In addition, arginine plays a vital role in blood vessel dilation, nerve transmission, cell division, wound healing, immune function and hormone release, so it is recognized by scientists However, the strong hydrophilicity of arginine and the weak interaction with receptors make its detection in aqueous solution a great challenge. At present, only a few studies have reported the use of chemical sensors to detect arginine for detection [Parveen, S.D.S., Affrose, A., Pitchumani, K., 2015. Sens. Actuators B 221, 521–527. He, L.; So, V. L. L.; Xin J. H.; 2014. Sens. Actuators B 192, 496 –502.], but the complex synthesis process greatly limits the practical application of these sensors; the patent of this invention adopts a simple hydrothermal synthesis method to prepare a water-soluble luminescent carbon quantum dot, the synthesis method is simple, and the carbon quantum dot completely water soluble

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
  • Luminescent carbon quantum dot as well as preparation method and application thereof
  • Luminescent carbon quantum dot as well as preparation method and application thereof
  • Luminescent carbon quantum dot as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0028]A preparation method of luminescent carbon quantum dots, 152.2 mg of o-phenylenediamine with a concentration of 0.8-2.0 mol / L and 216.3 mg of 2-hydroxyl-3-methoxybenzaldehyde with a concentration of 0.8-2.0 mol / L are dissolved The reaction solution was obtained in 20 mL of deionized water, and the reaction solution was placed in a polytetrafluoroethylene reactor and heated at a temperature of 180-220°C for 8-10 hours, and naturally cooled to room temperature to obtain a brown-yellow solution; Put the supernatant into a dialysis bag for dialysis for 24-72 hours, change the water every 2-6 hours, the molecular weight cut-off of the dialysis bag is 3500, and place the solution obtained by dialysis in a freeze dryer to dry for 18 hours to obtain carbon quantum dots.

[0029] The luminescent carbon quantum dot prepared by the preparation method of the luminescent carbon quantum dot can be used as a fluorescent probe to detect arginine in an aqueous solution within a pH range o...

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 belongs to the technical field of molecular probes, in particular to a luminescent carbon quantum dot, a preparation method and application thereof, and a method for detecting arginine in an aqueous solution by using the luminescent carbon quantum dot, in particular to a method for synthesizing the carbon quantum dot by using 2-methoxy-4-methylphenol and o-phenylenediamine as raw materials by a hydrothermal synthesis method and detecting arginine by fluorescence. The synthesis cost of the carbon quantum dot is low, the method is simple, the synthesized carbon quantum dot does notcontain heavy metals, and has low toxicity, and the carbon quantum dot provided by the invention is completely water-soluble, and can detect arginine in water, the detection limit is 78.11 mu M, thefluorescence quantum yield in water is 6.3%, and the luminescent carbon quantum dot has very good light stability, anti-interference and relatively good application prospects.

Description

technical field [0001] The invention belongs to the technical field of molecular probes, and in particular relates to a luminescent carbon quantum dot, a preparation method and application thereof, and a method for detecting arginine in an aqueous solution by using the luminescent carbon quantum dot. Background technique [0002] Among the 20 kinds of amino acids that make up proteins, arginine is one of the amino acids that can form the most diverse proteins in animals. It is not only the precursor of protein synthesis, but also produces nitric oxide, urea, polyamines, proline, gluten It is the precursor of amino acid, creatine and agmatine, etc. In addition, arginine plays a vital role in blood vessel dilation, nerve transmission, cell division, wound healing, immune function and hormone release, so it is recognized by scientists However, the strong hydrophilicity of arginine and the weak interaction with receptors make its detection in aqueous solution a great challenge. ...

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 Applications(China)
IPC IPC(8): C09K11/65B82Y20/00B82Y40/00G01N21/64G01N33/18
CPCB82Y20/00B82Y40/00C09K11/65G01N21/643G01N33/18
Inventor 李占先刘含笑于明明魏柳荷
Owner ZHENGZHOU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products