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

P-aminophenol imprinted polymer on surface of cadmium telluride quantum dot as well as preparation method and application thereof

A technology of cadmium telluride quantum dots and imprinted polymers is applied in the directions of alkali metal compounds, chemical instruments and methods, alkali metal oxides/hydroxides, etc. The effect of improving efficiency and high specific surface area

Inactive Publication Date: 2014-01-29
NANJING MEDICAL UNIV
View PDF3 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Technical problem to be solved: the purpose of the present invention is to provide a quantum dot surface phenolic material imprinted polymer and its preparation method and application, the obtained quantum dot surface molecule The imprinted polymer has high selectivity to phenolic environmental pollutants, and can solve the problems of cumbersome operation and time-consuming in previous methods

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
  • P-aminophenol imprinted polymer on surface of cadmium telluride quantum dot as well as preparation method and application thereof
  • P-aminophenol imprinted polymer on surface of cadmium telluride quantum dot as well as preparation method and application thereof
  • P-aminophenol imprinted polymer on surface of cadmium telluride quantum dot as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Accurately weigh 0.0327 g p-aminophenol, 0.2 g CdTeSiO 2 Add QDs to a 50 mL three-necked flask, add 10 mL of absolute ethanol, blow nitrogen, and stir for 20 min. Add 140 μL of 3-aminopropyltriethoxysilane (APTES), and stir for 30 min. Add 535 μL of TEOS, stir for 10 min and add 6.25 % wt NH 3 ·H 2 O 0.5 mL, stirred at room temperature for 20 h.

[0043] The reaction mixture was centrifuged at 10,000 r / min for 5 min, and the lower solid was washed with methanol and double-distilled water in order to obtain CdTeSiO 2 MIPs QDs. Blank polymers (NIPs) were prepared and treated the same except without the addition of p-aminophenol.

[0044] CdTeSiO that elutes p-aminophenol 2 MIPs QDs were dispersed in 10 mL of double-distilled water, and 0.2 mL of LCdTeSiO was added to a 5 mL EP tube 2 MIPs QDs, 1.0 mL Tris-HCl buffer solution (0.1 mol / L), different concentrations of p-aminophenol solution, sonicated for 10 min, allowed to stand at room temperature, and detected by ...

Embodiment 2

[0046] Accurately weigh 0.0218 g p-aminophenol, 0.2 g CdTeSiO 2 Add QDs to a 50 mL three-necked flask, add 10 mL of absolute ethanol, blow nitrogen, and stir for 20 min. Add 140 μL of APTES and stir for 30 min. Add 535 μL of TEOS, stir for 10 min and add 6.25% wt NH 3 ·H 2 O 0.5 mL, stirred at room temperature for 20 h.

[0047] The reaction mixture was centrifuged at 10,000 r / min for 5 min, and the lower solid was washed with methanol and double-distilled water in order to obtain CdTeSiO 2 MIPs QDs. Blank polymers (NIPs) were prepared and treated the same except without the addition of p-aminophenol.

[0048] CdTeSiO that elutes p-aminophenol 2 MIPs QDs were dispersed in 10 mL of double-distilled water, and 0.2 mL of LCdTeSiO was added to a 5 mL EP tube 2 MIPs QDs, 1.0 mL Tris-HCl buffer solution (0.1 mol / L), different concentrations of p-aminophenol solution, sonicated for 10 min, allowed to stand at room temperature, and detected by fluorescence. (see attached Fi...

Embodiment 3

[0050] Accurately weigh 0.0436 g p-aminophenol, 0.2 g CdTeSiO 2 Add QDs to a 50 mL three-necked flask, add 10 mL of absolute ethanol, blow nitrogen, and stir for 20 min. Add 140 μL of APTES and stir for 30 min. Add 535 μL of TEOS, stir for 10 min and add 6.25% wt NH 3 ·H 2 O 0.5 mL, stirred at room temperature for 20 h.

[0051] The reaction mixture was centrifuged at 10,000 r / min for 5 min, and the lower solid was washed with methanol and double-distilled water in order to obtain CdTeSiO 2 MIPs QDs. Blank polymers (NIPs) were prepared and treated the same except without the addition of p-aminophenol.

[0052] CdTeSiO that elutes p-aminophenol 2 MIPs QDs were dispersed in 10 mL of double-distilled water, and 0.2 mL of LCdTeSiO was added to a 5 mL EP tube 2 MIPs QDs, 1.0 mL Tris-HCl buffer solution (0.1 mol / L), different concentrations of p-aminophenol solution, sonicated for 10 min, allowed to stand at room temperature, and detected by fluorescence. (see attached Fi...

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

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a p-aminophenol imprinted polymer on the surface of a cadmium telluride quantum dot as well as a preparation method and application thereof. The preparation method comprises the following steps: I, synthesizing the cadmium telluride quantum dot CdTeQDs with a fluorescence characteristic and carrying out silanized modification on the surface; II, preparing the p-aminophenol imprinted polymer on the surface of the cadmium telluride quantum dot; and III, removing template molecules to obtain the p-aminophenol imprinted polymer on the surface of the cadmium telluride quantum dot CdTe@SiO2@MIP. Test results show that the limit of detection of CdTe@SiO2@MIPsQDs synthesized by the method to template molecules can reach 0.02 mu m. Fluorescence detection is quickly and simply carried out by using a fluorospectro photometer in a time-saving manner.

Description

[0001] technical field [0002] The invention belongs to the technical field of preparing a polymer with specific recognition performance for phenolic environmental pollutants, and in particular relates to a preparation method of a polymer imprinted with p-aminophenol on the surface of cadmium telluride quantum dots. [0003] Background technique [0004] This preparation method is to combine the highly sensitive optical properties of quantum dots (quantum dots, QDs) and the high selectivity of molecularly imprinted polymers (molecularly imprinted polymers, MIPs) in combination with target molecules to form molecularly imprinted polymers on the surface of quantum dots ( QDsMIPs) technology. QDsMIPs greatly enhance the selectivity of binding to template molecules while retaining the excellent optical properties of QDs. By measuring the enhancement or weakening of the fluorescent intensity of the molecular imprinted polymer on the surface of the quantum dot after the templat...

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): C08G77/44C08J9/26B01J20/26B01J20/28G01N21/64C09K11/88C09K11/02
Inventor 胡琴路霞林魏芳弟许贯虹刘利萍周萍杨静
Owner NANJING MEDICAL 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

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com