Method adopting temperature inductivity characteristic of phase-change high polymer material to prepare biodegradable particles
A polymer material and degradable technology, applied in medical science, surgery, etc., can solve problems such as inability to remove solvents, side effects of products, etc., and achieve the effects of easy mass production, stability and safety guarantee, and simple operation
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0033] Example 1:
[0034] The method for making biodegradable particles using the temperature-sensitive characteristics of phase change polymer materials includes the following steps:
[0035] S1. The biodegradable polymer material is dissolved in an organic solvent to obtain a biodegradable polymer material solution. The weight ratio of the biodegradable polymer material to the solution is 4%; the second copolymer is dissolved in PBS to obtain the second copolymer In the second copolymer solution, the weight ratio of the second copolymer to the solution is 1.8%; the biodegradable polymer material solution is mixed with the second copolymer solution and then ultrasonically emulsified to form an emulsified solution; the second copolymer is Polyoxyethylene-polyoxypropylene-polyoxyethylene triblock copolymer with a weight ratio of polyoxyethylene of 69% to 73%, the biodegradable polymer material is polylactic acid (PLLA), the second copolymer The average molecular weight of the pro...
Example Embodiment
[0041] Example 2:
[0042] The method for making biodegradable particles using the temperature-sensitive characteristics of phase change polymer materials includes the following steps:
[0043] S1. The biodegradable polymer material is dissolved in an organic solvent to obtain a biodegradable polymer material solution. The weight ratio of the biodegradable polymer material to the solution is 3.8%; the second copolymer is dissolved in PBS to obtain the second copolymer The second copolymer solution, the weight ratio of the second copolymer to the solution is 2%; the biodegradable polymer material solution is mixed with the second copolymer solution and then ultrasonically emulsified to form an emulsified solution; the second copolymer is Polyoxyethylene-polyoxypropylene-polyoxyethylene triblock copolymer with a weight ratio of polyoxyethylene of 69% to 73%, and the biodegradable polymer material is polylactic acid-glycolic acid (PLGA) 85: 15. The average molecular weight of the se...
Example Embodiment
[0049] Example 3:
[0050] The method for making biodegradable particles using the temperature-sensitive characteristics of phase change polymer materials includes the following steps:
[0051] S1. The biodegradable polymer material is dissolved in an organic solvent to obtain a biodegradable polymer material solution. The weight ratio of the biodegradable polymer material to the solution is 4.2%; the second copolymer is dissolved in PBS to obtain the second copolymer The second copolymer solution, the weight ratio of the second copolymer to the solution is 2.3%; the biodegradable polymer material solution and the second copolymer solution are mixed and then ultrasonically emulsified to form an emulsified solution; the second copolymer is Polyoxyethylene-polyoxypropylene-polyoxyethylene triblock copolymer with a weight ratio of polyoxyethylene of 69% to 73%, and the biodegradable polymer material is polylactic acid-glycolic acid (PLGA) 85: 15. The average molecular weight of the ...
PUM
Property | Measurement | Unit |
---|---|---|
Average molecular weight | aaaaa | aaaaa |
Average molecular weight | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap