Applications of phenol-iron complex as photo-thermal conversion material

A technology for photothermal conversion materials and iron complexes, applied in the field of materials, can solve the problems of complex synthesis methods, unfavorable practical application, long synthesis time, etc., and achieve the effects of wide application range, low cost and low toxicity

Inactive Publication Date: 2018-05-22
CAPITAL NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the synthesis methods of these photothermal conversion materials are relatively complicated and the synthesis time is long, which is not conducive to their practical application.

Method used

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  • Applications of phenol-iron complex as photo-thermal conversion material
  • Applications of phenol-iron complex as photo-thermal conversion material
  • Applications of phenol-iron complex as photo-thermal conversion material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Example 1. Preparation of epigallocatechin gallate-iron complex and its application as light-to-heat conversion material

[0042] 1. Preparation method

[0043] Prepare epigallocatechin gallate-iron complex according to the following steps:

[0044] Prepare 10mmol / L Fe(NO 3 )3 Aqueous solution and 7.5mmol / L epigallocatechin gallate aqueous solution, at 20 degrees Celsius, according to the volume of 1:1, under magnetic stirring (rotating speed is 1000rpm) FeCl 3 Add the aqueous solution of epigallocatechin gallate dropwise in the aqueous solution of epigallocatechin gallate, stop after stirring for 10 seconds, and obtain the aqueous solution of epigallocatechin gallate-iron complex. Distillation under reduced pressure can obtain epigallocatechin gallate-iron complex.

[0045] 2. Application

[0046] (1) Photothermal conversion

[0047] Such as figure 1 As shown, the color of the aqueous solution of epigallocatechin gallate-iron complex prepared above is dark blue-p...

Embodiment 2

[0051] Example 2. Preparation of gallic acid-iron complex and its application as a light-to-heat conversion material

[0052] 1. Preparation method

[0053] Prepare gallic acid-iron complex according to the following steps:

[0054] Prepare 10mmol / L FeCl respectively 2 and 2.5mmol / L (NH 4 ) 2 S 2 o 8 , mixed according to the volume ratio of 1:1 to prepare a mixed aqueous solution, prepare a 7.5mmol / L gallic acid aqueous solution, and mix FeCl 2 and (NH 4 ) 2 S 2 o 8 The mixed aqueous solution was added dropwise in the gallic acid aqueous solution, stopped after stirring for 30 seconds, and obtained the gallic acid-iron complex aqueous solution. Distill under reduced pressure to obtain gallic acid-iron complex.

[0055] 2. Application

[0056] (1) Photothermal conversion

[0057] Such as Figure 5 Shown, the color of gained gallic acid-iron complex aqueous solution is dark blue. UV-Vis-NIR spectroscopy such as Image 6 As shown, the obtained material has strong ...

Embodiment 3

[0061] Example 3, Preparation of 2-hydroxy-4-amino-phenyl acetate-iron complex and its application as a photothermal conversion material

[0062] 1. Preparation method

[0063] Prepare 2-hydroxyl-4-amino-acetic acid phenyl ester-iron complex according to the following steps:

[0064] Prepare 10mmol / L FeCl respectively 3 aqueous solution and 7.5mmol / L 2-hydroxy-4-amino-phenyl acetate aqueous solution, at 25 degrees Celsius, according to the volume of 1:1, under magnetic stirring (1000rpm) FeCl 3 Add the aqueous solution of 2-hydroxy-4-amino-phenyl acetate dropwise into the aqueous solution of 2-hydroxy-4-amino-phenyl acetate, and stop after stirring for 15 seconds to obtain the aqueous solution of 2-hydroxy-4-amino-phenyl acetate-iron complex. Distill under reduced pressure to obtain 2-hydroxy-4-amino-phenyl acetate-iron complex.

[0065] 2. Application

[0066] (1) Photothermal conversion

[0067] Such as Figure 9 As shown, the color of the obtained 2-hydroxyl-4-amino-a...

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Abstract

The invention discloses applications of a phenol-iron complex as a photo-thermal conversion material. The invention provides at least one of following applications: (1) the phenol-iron complex is usedas a photo-thermal conversion material; (2) the phenol-iron complex is used to prepare a photo-thermal conversion material; (3) the phenol-iron complex is used as a carrier of a drug for preventing and / or treating tumors; and (4) the phenol-iron complex is used to prepare a composite material for loading a drug for preventing and / or treating tumors. The phenol-iron complex is prepared by the following step: carrying out complexing reactions in water between trivalent iron ions and phenols. After reactions, the phenol-iron complex is obtained. The preparation method of the phenol-iron complexis convenient and universal, and the cost is low. The rapidly prepared phenol-iron complex photo-thermal conversion material has a good molar extinction coefficient and photo-thermal conversion efficiency, moreover, the volume of the complex is small, so the volume can be loaded on other materials; and the complex has a good application prospect in fields such as tumor treatment, and the like.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to the application of iron phenoxide complexes as light-to-heat conversion materials. Background technique [0002] Photothermal conversion nanomaterials are special materials that can absorb near-infrared light and convert it into heat energy, and have good application prospects in tumor treatment and other aspects. Therefore, the development of new light-to-heat conversion materials is a current research focus and a research hotspot. [0003] At present, many photothermal conversion materials have been reported, such as noble metal-based (ACS Nano 2008,2,1645-1652.), semiconductor-based (J.Am.Chem.Soc.2013,135,8571-8577.), Small molecule dyes (Adv.Funct.Mater.2016,26,3480-3489.), carbon-based (Nat.Commun.2016,7,10437.) and conjugated polymer-based photothermal conversion materials (Adv.Funct.Mater .2015, 25, 1451-1462.), etc. These light-to-heat conversion materials have st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K41/00A61K47/24A61P35/00
CPCA61K41/0052A61K47/24
Inventor 周晶刘瑜鑫范慧敏郭权炜张戈
Owner CAPITAL NORMAL UNIVERSITY
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