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Application of neutral red premicelle system in the preparation of temperature-responsive fluorescent switch devices

A technology of red premicelle and fluorescent switch, which is applied in the measurement of color/spectral characteristics, etc., can solve the problems of less mention and less research on premicelle, and achieve the effect of sensitive temperature response and good application prospects

Inactive Publication Date: 2019-12-17
HENAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There is a big difference between the premicelle state and the micellar state. Premicelle is a kind of self-assembly system. People have done a lot of research on micelles before, but there are not many studies on premicelle, especially in China. and less

Method used

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  • Application of neutral red premicelle system in the preparation of temperature-responsive fluorescent switch devices
  • Application of neutral red premicelle system in the preparation of temperature-responsive fluorescent switch devices
  • Application of neutral red premicelle system in the preparation of temperature-responsive fluorescent switch devices

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Response of NR / SDSN assembly system to temperature

[0022] Such as figure 1 It is the UV-Vis absorption spectra of different ratios of NR / SDSN assembly system at pH=9 and the temperature is changed. At this time, the molar concentration of neutral red is 0.2mM. Keep the concentration of NR unchanged and change the concentration of SDSN. Because heating up will destroy the assembly system, when the temperature is raised, the NR / SDSN assembly system will dissolve and release free NR. NR then interacts with hydroxide in the environment, causing the absorption peak of the ultraviolet spectrum to shift to 450nm. . figure 1 (a) The molar ratio of NR and SDSN is 1:5. At this time, the hydrophobicity of the assembly system is not strong, and the stability of the entire assembly system is not good. Therefore, it is originally affected by the alkaline environment. A part of NR is released, so the overall absorbance increases. figure 1 (b) The molar ratio of NR to SDSN is 1:10. At t...

Embodiment 2

[0025] Response of NR / SDBS assembly system to temperature

[0026] Such as image 3 It is the UV-Vis absorption spectra of different ratios of NR / SDBS assembly system at pH=9 and the temperature is changed. At this time, the molar concentration of neutral red is 0.2mM. Keep the concentration of NR unchanged and change the concentration of SDBS. In theory, heating up will destroy the self-assembly, so when the temperature is raised, the NR / SDBS assembly system will dissolve and release free NR. NR then interacts with the hydroxide in the environment, causing the absorption peak of the ultraviolet spectrum to shift to 450nm. shift. image 3 (a) The molar ratio of NR to SDBS is 1:5. At this time, the hydrophobicity of the assembled system is the weakest among the four groups. The stability of the entire assembled system is not very good, so the assembly system at elevated temperature releases part of NR and alkalinity Due to environmental effects, the UV maximum absorption peak of t...

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Abstract

The invention discloses an application of a neutral red premicelle system in the production of a temperature-responsive fluorescence switching device, and belongs to the technical field of temperature-responsive fluorescence switching devices. The neutral red premicelle system is characterized by the application of the neutral red premicelle system in the temperature-responsive fluorescence switching device. The neutral red premicelle system comprises neutral red and a surfactant, and the surfactant is sodium dodecyl sulfate or sodium dodecyl benzene sulfonate. The neutral red premicelle system is relatively sensitive to temperature response, and is reversible, so the neutral red premicelle system has a good application prospect in the production of the temperature-responsive fluorescenceswitching device.

Description

Technical field [0001] The invention belongs to the technical field of temperature-responsive fluorescent switch devices, and specifically relates to the application of a neutral red premicelle system in the preparation of temperature-responsive fluorescent switch devices. Background technique [0002] Neutral Red (NR), 3-amino-7-dimethylamino-2-methylphenazine hydrochloride, molecular formula is C 15 H 17 ClN 4 . From the outside, neutral red is a green crystalline powder, but when neutral red is dissolved in water, the dilute solution is red, and the concentrated solution is purple. Neutral red is often used as a biological stain, redox indicator, acid-base indicator, etc., and has been active in scientific research. Under normal circumstances, it responds to changes in pH and metal ions, and the color range is pH 6.8-8.0, alkaline is yellow, acidic is red. [0003] Surfactants are organic compounds composed of two groups, one of which is more lipophilic and hydrophobic, called...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/33
Inventor 刘奇王晨刘爱莉李鑫
Owner HENAN NORMAL UNIV
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