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Preparation method and application of drug-loaded slow-release spider silk protein membrane

A technology of spidroin and drug loading, which can be used in pharmaceutical formulations, medical preparations containing active ingredients, drug combinations, etc. It can solve the problems of rare film-forming materials, reduce pain and distress, and achieve biocompatibility Good, improve the effect of drug administration

Inactive Publication Date: 2022-04-19
SICHUAN GOODDOCTOR PHARMA GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] At present, biocompatible slow-release film-forming materials at home and abroad are roughly divided into natural and synthetic materials. However, there are few film-forming materials for natural spider silk used in slow-release films. Compatibility is second to none in the world, but whether pure spider silk can curl up and self-assemble into a biological skeleton under certain conditions; whether the formed spider silk biocompatible film can be loaded with drug molecules, and how to restore new drugs And / or the desensitizing agent is effectively mixed with the spider silk, so that the self-assembled spider silk bioprotein film can wrap the effective drug molecules and / or desensitizing active molecules in Kangfuxin and release them slowly in the oral environment. There is no research conclusion , which is a key common technology that needs to be solved urgently in the industry

Method used

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  • Preparation method and application of drug-loaded slow-release spider silk protein membrane
  • Preparation method and application of drug-loaded slow-release spider silk protein membrane
  • Preparation method and application of drug-loaded slow-release spider silk protein membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Example 1: Preparation of drug-loaded material matrix spidroin film

[0041] This embodiment provides a method for preparing a drug-loaded material matrix spidroin film, that is, a blank film that does not contain any drug. The Jingzhao tasseled spider silk used in the experiment came from Hainan Spider King Biotechnology Co., Ltd.

[0042] 1.1 Preparation of the drug-loaded material matrix spidroin protein solution: take the degummed Jingzhao tasseled spider silk to pick and remove impurities, weigh 100.0mg of the spider silk raw material and dissolve it in 600mL of hexafluoroisopropanol (HFIP) solution, and magnetically stir Heat to 50°C and reflux for 12 hours to dissolve; filter the dissolved spidroin protein solution while hot with a 400-mesh stainless steel metal filter to obtain a pure drug-loaded material matrix spidroin filtrate.

[0043] 1.2 Preparation of drug-loaded material matrix spidroin film: Spread the spidroin filtrate prepared under item 1.1 in a fla...

Embodiment 2

[0044] Example 2: Preparation of drug-loaded spidroin protein rehabilitation drug extract film

[0045] This embodiment provides a preparation method of drug-loaded spidroin protein rehabilitation drug extract film. The Jingzhao tasseled spider silk used in the test comes from Hainan Spider King Biotechnology Co., Ltd. The new rehabilitation drug in this example refers to the new rehabilitation drug extract (that is, the raw material extract of Kangfu new liquid) produced by Sichuan Good Doctor Panxi Pharmaceutical Co., Ltd. Limited offer.

[0046] 2.1 Preparation of drug-loaded material matrix spidroin protein solution: take degummed Jingzhao tasseled spider silk, sort and remove impurities, weigh 500.0 mg of spider silk raw material and place it in a 2000 mL round bottom flask, measure 1500 mL of hexafluoroiso Pour the propanol solution into a round-bottomed flask, heat it to 60°C with magnetic stirring and reflux for 10 hours to dissolve it; filter the dissolved spidroin s...

Embodiment 3

[0049] Example 3: Preparation of Strontium Chloride Membrane of Drug-Loaded Spidroin Protein Kangfuxin Drug Extract

[0050] This embodiment provides a method for preparing a strontium chloride (desensitizing agent) film of drug-loaded spidroin protein rehabilitation drug extract. The Jingzhao tasseled spider silk used in the test comes from Hainan Spider King Biotechnology Co., Ltd. In this example, the new rehabilitation drug refers to the raw material drug Kangfuxin drug extract (that is, the raw material extract of Kangfuxin solution) from Sichuan Provided by Good Doctor Panxi Pharmaceutical Co., Ltd.; strontium chloride was purchased from Shanghai Yuanye Biotechnology Co., Ltd.

[0051] 3.1 Preparation of drug-loaded material matrix spidroin protein solution: take degummed Jingzhao tasseled spider silk, sort and remove impurities, weigh 500.0mg of spider silk raw material into a 5000mL round bottom flask, measure 4000mL of hexafluoroisopropyl Pour the alcohol solution in...

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PUM

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Abstract

The invention relates to a preparation method and application of a drug-loaded slow-release spider silk protein film. The medical nursing consumable device is suitable for household nursing and / or inter-diagnosis treatment of the dentin sensitive patient. According to the invention, a pre-film-forming drug loading method for blending a Kangfuxin drug and / or other desensitizers and natural degummed spider threads in a solvent is used, and the natural spider threads with good biocompatibility are prepared into a biocompatible sustained-release film loaded with the Kangfuxin drug and / or other desensitizers; kangfuxin drugs and / or other desensitizer drug molecules embedded in pores of the biological material skeleton can be continuously and slowly released, so that the problems of insufficient burst release and insufficient action time of desensitization toothpaste are solved. The desensitization membrane can be attached to teeth and can also be stuffed between the teeth and gingival seams, or the membrane is stuffed into a periodontal pocket, so that the effects of desensitization and repair nursing for a long time are achieved. The drug-loaded sustained-release membrane disclosed by the invention can effectively improve the rapidness, convenience and effectiveness of administration, dressing change and nursing of a patient with dentin sensitivity.

Description

technical field [0001] The invention relates to the field of medical care consumables, in particular, the invention relates to the preparation of a drug-loaded slow-release spidroin film and its application in the preparation of dentin-sensitive medical care consumables. The medical care consumable device is suitable for home care or out-of-office treatment of patients with dentin sensitivity. Background technique [0002] Dentin sensitivity refers to the short and sharp pain caused by exposed dentin to external stimuli, including temperature stimuli, osmotic pressure stimuli, chemical stimuli, air blowing stimuli, mechanical stimuli, etc. In 2008, a survey by the Chinese Stomatological Association found that among the 8,000 survey samples, 40.7% reported dentin hypersensitivity, while the attack rate of those diagnosed with dentin hypersensitivity reached 29.7%. The average number of dentin hypersensitivity teeth per capita was 1.4, and the incidence rate of dentin hyperse...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K9/70A61K33/14A61K47/42A61K35/64A61P1/02A61P37/08
CPCA61K9/7007A61K9/0063A61K33/14A61K47/42A61K35/64A61P1/02A61P37/08A61K2300/00
Inventor 曾惠娜耿福能刘彬吴桃清巫秀美李启艳张成桂
Owner SICHUAN GOODDOCTOR PHARMA GRP
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