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Preparation method of Fe<3+> fluorescent film sensor device based on dispersible hyperbranched conjugated polymer nano-particles

A hyperbranched conjugated, thin-film sensor technology, applied in the field of fluorescent molecular sensors, can solve problems such as limited application, and achieve the effects of repeated use, high selective response, high sensitivity and selective response

Active Publication Date: 2016-09-21
JIANGXI PURUIFENG ECOLOGICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will limit their application in terms of processability, especially in the fabrication of thin film devices

Method used

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  • Preparation method of Fe&lt;3+&gt; fluorescent film sensor device based on dispersible hyperbranched conjugated polymer nano-particles
  • Preparation method of Fe&lt;3+&gt; fluorescent film sensor device based on dispersible hyperbranched conjugated polymer nano-particles
  • Preparation method of Fe&lt;3+&gt; fluorescent film sensor device based on dispersible hyperbranched conjugated polymer nano-particles

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Experimental program
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Embodiment Construction

[0019] Preparation of a dispersible hyperbranched conjugated polymer fluorescent nanoparticle: Monomer 1 is obtained from a commercial source, and the synthesis and preparation process of Monomer 2 is as follows:

[0020] ,

[0021] (1) Preparation of tris(tetrabromophenyl)amine: 10.6 g of triphenylamine was dissolved in 43 mL of chloroform and the temperature of the system was lowered to 0°C, and then liquid bromine was added dropwise in the dark. After the liquid bromine was completely added, the reaction was continued for one hour, and the crude product was poured into a water-ethanol system with a volume ratio of 1:1 for precipitation. The white solid was filtered and dissolved in 20 mL of hot chloroform, and 50 mL of hot ethanol was added to the system to recrystallize overnight at -18 °C. Finally, the precipitate was filtered off and dried in a vacuum oven to obtain 18.0 g of tris(tetrabromophenyl)amine. 1 H NMR (CDCl 3 ): δ = 7.35 (d, 6H), 6.92 (d, 6H); 13 C NMR (...

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Abstract

The invention relates to a preparation method of a Fe<3+> fluorescent film sensor device based on dispersible hyperbranched conjugated polymer nano-particles. The prepared hyperbranched conjugated polymer nano-particles are acquired with a miniemulsion Suzuki polymerization method, the average grain diameter of the nano-particles is 10.6 nm, and the nano-particles have a higher fluorescence quantum yield; the dispersible hyperbranched conjugated polymer nano-particles are used for preparing the fluorescent film sensor device on the surface of a glass substrate with a spin coating method. The Fe<3+> film sensor device prepared with the method has higher Fe<3+> recognition capability, sensitivity and reversibility, has potential application value, can realize logic gate application and has good application prospect.

Description

technical field [0001] The invention belongs to the field of fluorescent molecular sensors, and relates to a Fe-based dispersible hyperbranched conjugated polymer nanoparticle. 3+ Preparation method of fluorescent thin film sensing device. Background technique [0002] Iron is widely found in nature and is one of the important elements in biological systems. It plays a vital role in many biological and chemical processes at the cellular level, in the formation of hemoglobin in red blood cells, and in the storage and transport of oxygen in living tissues. Iron ions are essential in most organisms. Iron ions in metabolic disorders can cause anemia and damage to the liver and kidneys, eventually leading to cancer, cirrhosis, arthritis, diabetes or heart rate disorders. Moreover, iron ions also play an important role in photosynthesis, respiration, biological nitrogen fixation, and absorption and utilization of mineral elements in plants. Due to the important role iron ions p...

Claims

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Application Information

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IPC IPC(8): C08G61/12
CPCC08G61/121C08G2261/124C08G2261/132C08G2261/1412C08G2261/3142C08G2261/411C08G2261/522C08G2261/94
Inventor 文阳平丁万川徐景坤
Owner JIANGXI PURUIFENG ECOLOGICAL TECH CO LTD
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