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Perylene diimide-based sensor material and preparation method and application of sensor

A perylene diimide and sensor technology, which is applied in the field of gas sensing, can solve problems such as the complexity of the drug detection process, and achieve high sensitivity and specificity sensing effects

Active Publication Date: 2022-01-21
SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the above-mentioned problems such as the complexity of the drug detection process in the prior art, the present invention provides a perylene diimide-based sensor material and a preparation method of the sensor and its application

Method used

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  • Perylene diimide-based sensor material and preparation method and application of sensor
  • Perylene diimide-based sensor material and preparation method and application of sensor
  • Perylene diimide-based sensor material and preparation method and application of sensor

Examples

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Embodiment 1

[0030] This embodiment provides a class of sensor materials based on perylene diimides. In this embodiment, perylene diimides are used as raw materials to design and synthesize a variety of perylene diimides containing different end groups and side chain groups. Derivative molecules such as figure 1 shown.

[0031] Its synthesis method has two steps:

[0032] In the first step, put 1,6,7,12-tetrachloro-3,4,9,10-perylenetetracarboxylic dianhydride and alkylamine into toluene, the ratio of the substances is 1:6, and heat at 100°C , reacted for 12 hours, and obtained terminal alkyl 1,6,7,12-tetrachloroperylenediimide after column chromatography. The input alkylamine raw materials include ethylamine, n-propylamine, n-butylamine, n-hexylamine, n-octylamine, n-decylamine, dodecylamine and other alkylamines, and finally obtain a variety of tetrachloroperylene diethylamines with different end groups. One-step product of imide.

[0033] In the second step, the product purified in t...

Embodiment 2

[0038] This embodiment provides a sensor based on perylene diimide, which includes an electrode and a gas-sensitive material coated on the surface of the electrode, wherein the gas-sensitive material is the substrate in the above-mentioned embodiment Carbon nanotube sensor material. The fabrication process of the sensor is as follows: first, an interdigitated electrode is provided, and its structure is as follows: image 3As shown, a represents the glass substrate, and b represents titanium-tungsten gold. Titanium-tungsten gold is deposited on the glass substrate a, and b forms the interdigitated electrode. Transfer the amount to the surface of the interdigital electrode, the coating amount is not limited to 3μl, just apply to make the entire interdigital electrode soaked in the solution, and repeat several times after natural air drying until the resistance of the interdigital electrode reaches the level of 100-100000Ω. In the resistance range, the power consumption of the i...

Embodiment 3

[0044] The present embodiment provides a kind of synthetic method of the perylene diimide derivative in the above-mentioned embodiment 1 and the preparation method of the sensor material in the embodiment 2, and this preparation method comprises the following steps at least:

[0045] Through a two-step reaction, a batch of perylene diimide probe molecules with different end groups and side chain groups were synthesized. The molecular structure of the probe was relatively new, and its function was explored through sensing tests.

[0046] In this example, the schematic diagram of the interaction process between perylene diimide derivative molecules and carbon materials is shown in figure 2 , the preparation method in this example has mild conditions, simple steps, and low manufacturing cost.

[0047] It should be noted that in this embodiment, organic solvents such as acetonitrile, acetone, dichloromethane, and chloroform can also be used. Of course, in other embodiments, other...

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Abstract

The invention relates to a preparation method of a sensor material based on perylene diimide, which comprises the following steps: reacting tetrachloro-3,4,9,10-perylenetetracarboxylic dianhydride with long-chain primary amine to obtain a perylene diimide compound with an alkyl chain as a terminal group; reacting the perylene diimide compound with a molecule with hydroxyl or sulfydryl to obtain a sensing probe with a terminal group and a side chain group; then enabling the sensing probe to be adsorbed on the carbon-based inorganic conductive semiconductor material through non-covalent interaction to gather so as to form the sensor material. The invention also provides a preparation method and application of the sensor based on perylene diimide. The perylene diimide derivative modified by multiple functional groups acts with methylamphetamine gas molecules, so that the adsorption of the perylene diimide derivative on methylamphetamine can be reflected in the change of an electrical signal, and a sensor adopting the sensor material can realize high-sensitivity and specific sensing on methylamphetamine, and therefore, rapid detection on the ultralow-concentration methylamphetamine gas is realized.

Description

technical field [0001] The present invention relates to gas sensitive sensing technology, more particularly to a kind of perylene diimide based sensor material and the preparation method of sensor and its application. Background technique [0002] Meth, as a highly addictive drug, has been included in the list of contraband controls around the world, and has been severely cracked down by countries all over the world. At present, the detection methods mainly use infrared spectroscopy (FTIR), gas chromatography (GC), liquid chromatography (HPLC), capillary electrophoresis, gas chromatography-mass spectrometry (GC-MS), liquid chromatography-mass spectrometry Usage (HPLC-MS), radioimmunoassay, colloidal gold chromatography, immunoassay, etc. Urine is the most widely used in vivo assay for the analysis of drug abuse. The traditional pretreatment methods are mainly liquid-liquid extraction and solid phase extraction. In recent years, solid-phase microextraction, liquid-phase mi...

Claims

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Application Information

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IPC IPC(8): G01N27/12
CPCG01N27/125
Inventor 朱震贺庆国程建功
Owner SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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