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A kind of perylene diimide bromine substitute and method and application of preparing gas-phase sensing film of Bacillus anthracis marker based thereon

A technology of perylene diimide bromide and sensing thin film, which is applied in chemical instruments and methods, preparation of test samples, resistance to vector-borne diseases, etc., can solve the problem of few gas-phase pyridinedioic acid detection methods, complicated analytical instruments, Time-consuming equipment and other problems, to achieve the effect of miniaturization, simple device preparation method, and fast response time

Active Publication Date: 2022-08-09
SHAANXI SCI TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, current Bacillus anthracis detection methods not only require sophisticated analytical instruments, but are also time-consuming and not easily portable
More importantly, the usual detection methods are often only aimed at the detection of pyridinedioic acid in water, and there are few detection methods for gas phase pyridinedioic acid

Method used

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  • A kind of perylene diimide bromine substitute and method and application of preparing gas-phase sensing film of Bacillus anthracis marker based thereon
  • A kind of perylene diimide bromine substitute and method and application of preparing gas-phase sensing film of Bacillus anthracis marker based thereon
  • A kind of perylene diimide bromine substitute and method and application of preparing gas-phase sensing film of Bacillus anthracis marker based thereon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Example 1: Synthesis of PBI-1Br and preparation of picolinic acid sensor

[0047] (1) Synthesis of PBI-1Br molecule:

[0048] N,N-Diisooctylamino-perylenediimide (10 mmol, 6.15 g) was dissolved in 150 mL of CH 2 Cl 2 and slowly add 34mL Br 2 , stirring at 50°C-cooling and refluxing for 48h, the flask was removed from the oil bath, after the reaction was completed and lowered to room temperature, the reaction solution was poured into a 1000mL beaker, and 5 g of sodium thiosulfate was added to the mixture and stirred overnight , to remove the unreacted bromine, after that, the mixture was vacuum filtered and washed with ultrapure water three times to obtain a dark red solid powder, which was dried in a vacuum drying oven at 50°C for 5h. Dissolve the brominated PBI crude product in dichloromethane, add silica gel to mix the sample, dissolve the brominated PBI crude product in dichloromethane, add silica gel to mix the sample, and separate the perylene diimide monobromid...

Embodiment 2

[0057] Example 2: Synthesis of PBI-2Br and preparation of picolinic acid sensor

[0058] (1) Synthesis of PBI-2Br molecule:

[0059] N,N-Diisooctylamino-perylenediimide (10 mmol, 6.15 g) was dissolved in 150 mL of CH 2 Cl 2 and slowly add 34mL Br 2 , at 50°C with stirring-cooling and refluxing for 48h, remove the flask from the oil bath, after the reaction is completed and drop to room temperature, pour the reaction solution into a 1000mL beaker, add 5 g of sodium thiosulfate to the mixture and stir overnight , to remove the unreacted bromine, after that, the mixture was vacuum filtered and washed with ultrapure water three times to obtain a dark red solid powder, which was dried in a vacuum drying oven at 50°C for 5h. Dissolve the brominated PBI crude product in dichloromethane, add silica gel to mix the sample, dissolve the brominated PBI crude product in dichloromethane, add the silica gel to mix the sample, and separate the perylene diimide dibromide by column chromatog...

Embodiment 3

[0068] Example 3: Synthesis of PBI-3Br and preparation of picolinic acid sensor

[0069] (1) Synthesis of PBI-3Br molecule:

[0070] N,N-Diisooctylamino-perylenediimide (10 mmol, 6.15 g) was dissolved in 150 mL of CH 2 Cl 2 and slowly add 34mL Br 2 , at 50°C with stirring-cooling and refluxing for 48h, remove the flask from the oil bath, after the reaction is completed and drop to room temperature, pour the reaction solution into a 1000mL beaker, add 5 g of sodium thiosulfate to the mixture and stir overnight , to remove the unreacted bromine, after that, the mixture was vacuum filtered and washed with ultrapure water three times to obtain a dark red solid powder, which was dried in a vacuum drying oven at 50°C for 5h. Dissolve the brominated PBI crude product in dichloromethane, add silica gel to mix the sample, dissolve the brominated PBI crude product in dichloromethane, add the silica gel to mix the sample, and separate the perylene diimide tribromide by column chromato...

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Abstract

The invention discloses a perylene diimide bromine substitute and a method and application for preparing a gas-phase sensing film of a Bacillus anthracis marker based on the same, belonging to the technical field of organic semiconductor materials. The sensor film of the present invention mainly includes organic active assembly materials, and the organic active layer materials are perylene diimide bromides PBI-1Br, PBI-2Br, PBI-3Br and PBI-4Br, which are loaded on the On glass, silica gel or porous anodized aluminum substrate, and the coating concentration is 0.1 ~ 0.5uL / cm 2 . The picolinic acid sensor of the invention is convenient to prepare, simple to operate, and has obvious effect of distinguishing and detecting pyridine and its derivatives. In addition, the pyridine and its derivative sensor of the present invention has high stability and fast response time.

Description

technical field [0001] The invention belongs to the technical field of organic semiconductor materials, and in particular relates to a perylene diimide bromine substitute and a method and application for preparing a gas-phase sensing film of a Bacillus anthracis marker based thereon. Background technique [0002] Bacillus anthracis is a rod-shaped, gram-positive bacillus that causes anthracnose, which in turn causes a fatal infection of living organisms. In the normal period, bacterial spores can survive in harsh environments, such as high temperature, freezing, ultraviolet rays, drying, strong acid, etc. When ambient conditions are favorable, A. niger spores can be converted to the active form. Anthrax infection can be fatal if not treated effectively within 24-48 hours. Therefore, Bacillus anthracis has attracted worldwide attention as a potential biological warfare agent. Rapid and sensitive detection of Bacillus anthracis is essential to reduce anthrax infection and p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D471/06C09K11/06G01N1/38G01N21/64
CPCC07D471/06C09K11/06G01N21/6428G01N1/38C09K2211/1044Y02A50/30
Inventor 刘全邵先钊张强王伟田光辉季晓晖
Owner SHAANXI SCI TECH UNIV
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