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Sulfonated poly-n-phenylglycine photothermal material and its preparation method and application

A technology of phenylglycine and sulfonated polymers, which can be used in wave energy or particle radiation treatment materials, pharmaceutical formulations, medical preparations containing active ingredients, etc., can solve the problem of single functionalization, achieve simple preparation methods, and improve water solubility. Sexuality, the effect of enhancing the lethality rate

Inactive Publication Date: 2019-05-31
GUANGXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the functionalization of these polyaniline composite nanoparticles is relatively simple, how to further improve the therapeutic effect and reduce the toxicity of photothermal reagents needs to be solved

Method used

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  • Sulfonated poly-n-phenylglycine photothermal material and its preparation method and application
  • Sulfonated poly-n-phenylglycine photothermal material and its preparation method and application
  • Sulfonated poly-n-phenylglycine photothermal material and its preparation method and application

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Experimental program
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preparation Embodiment 1

[0031] (1) Preparation of poly-N-phenylglycine: monomer N-phenylglycine (1.06 g, 7 mmol) and oxidant ammonium persulfate (1.60 g, 7 mmol) were dissolved in 0.1M H 2 SO 4 In an ice bath, keep the temperature at 0-5°C, add the oxidant ammonium persulfate solution dropwise to the monomer solution, and the dropwise addition time is 2h. After the dropwise addition, the reaction was continued in an ice bath for 5 h, raised to room temperature for 24 h, and the reaction was stopped. Filter and wash three times with distilled water. After vacuum drying at 50°C for 48 hours, a dark green solid was obtained, namely poly-N-phenylglycine.

[0032] (2) Preparation of sulfonated poly-N-phenylglycine: Add poly-N-phenylglycine (0.5 g, 0.3 mmol) into (15 mL, 0.189 mol) 1,2-dichloroethane, ultrasonically disperse and mechanically Stir, ultrasonic time is 1 h, frequency is 40KHz; then heated to 80°C to obtain a dispersion system; dilute (0.078 g, 0.7 mmol) chlorosulfonic acid with (1 mL, 0.01...

preparation Embodiment 2

[0034](1) Preparation of poly-N-phenylglycine: The monomer N-phenylglycine (1.06 g, 7 mmol) and the oxidant ammonium persulfate (1.60 g, 7 mmol) were dissolved in 1 M HCl respectively, and ice-bathed , keep the temperature at 0-5°C, add the oxidant ammonium persulfate solution dropwise to the monomer solution, and the dropwise addition time is 2h. After the dropwise addition was completed, the reaction was continued in an ice bath for 10 h, raised to room temperature for 12 h, and the reaction was stopped. Filter and wash three times with distilled water. After vacuum drying at 40°C for 96 hours, a dark green solid was obtained, namely poly-N-phenylglycine.

[0035] (2) Preparation of sulfonated poly-N-phenylglycine: Add poly-N-phenylglycine (0.5 g, 0.3 mmol) into (18 mL, 0.227 mol) 1,2-dichloroethane, ultrasonically disperse and mechanically Stir, ultrasonic time is 2 h, frequency is 30KHz; then heated to 80°C to obtain a dispersion system; dilute (0.052 g, 0.45 mmol) chlor...

preparation Embodiment 3

[0037] (1) Preparation of poly-N-phenylglycine: The monomer N-phenylglycine (1.06 g, 7 mmol) and the oxidant ammonium persulfate (1.60 g, 7 mmol) were dissolved in 1 M HCl respectively, and ice-bathed , keep the temperature at 0-5°C, add the oxidant ammonium persulfate solution dropwise to the monomer solution, and the dropwise addition time is 2h. After the dropwise addition was completed, the reaction was continued in an ice bath for 3 hours, then raised to room temperature for 30 hours, and then the reaction was stopped. Filter and wash three times with distilled water. After vacuum drying at 60°C for 48 hours, a dark green solid was obtained, namely poly-N-phenylglycine.

[0038] (2) Preparation of sulfonated poly-N-phenylglycine: Add poly-N-phenylglycine (0.5 g, 0.3 mmol) into (13 mL, 0.164 mol) 1,2-dichloroethane, ultrasonically disperse and mechanically Stir, ultrasonic time is 0.5h, frequency is 50KHz; then heated to 80°C to obtain a dispersion system; dilute (0.087g...

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Abstract

The invention discloses a sulfonated poly N-phenylglycine photo-thermal material as well as a preparation method and an application thereof. The preparation method comprises: carrying out oxidation polymerization on an N-phenylglycine monomer by using ammonium persulfate to obtain poly N-phenylglycine; and carrying out chlorosulfonic acid sulfonation to introduce a sulfonic group into an aromatic ring structure of the poly N-phenylglycine so as to obtain a water-soluble photo-thermal material namely sulfonated poly N-phenylglycine. The synthetic method is available in raw materials, and is simple in synthesis process and small in environmental protection; meanwhile, the carboxyl on the sulfonated poly N-phenylglycine can be subjected to modification to obtain an efficient high polymer photo-thermal material with multiple functions, and the efficient high polymer photo-thermal material has an application value in treatment of cancer; and the kill rate of cancer cells is enhanced by using photo-thermal treatment of the N-phenylglycine photo-thermal material, so that the N-phenylglycine photo-thermal material has an extensive application prospect in the aspects of photo-thermal treatment, functional materials, tissue engineering and the like.

Description

technical field [0001] The invention relates to a photothermal therapy reagent, which belongs to the technical field of biomedical materials, in particular to a sulfonated poly-N-phenylglycine photothermal material and its preparation method and application. Background technique [0002] Photothermal therapy is to use materials with photothermal conversion function to absorb near-infrared light under laser irradiation, convert light energy into heat energy, generate high heat, and then realize the treatment of the lesion. Compared with traditional surgery, radiotherapy, and chemotherapy, photothermal therapy has the advantages of simple process, non-invasive or minimally invasive, fewer complications, faster recovery, and shorter hospital stay. Therefore, it can effectively relieve the pain of patients and improve the treatment effect of patients. The near-infrared laser used in photothermal therapy has a wavelength of 700-1100nm and has a tissue penetration depth of several...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K41/00A61P35/00C08G69/48C08G69/10
CPCA61K41/0052C08G69/10C08G69/48
Inventor 蒋邦平梁文倩沈星灿
Owner GUANGXI NORMAL UNIV