Porous Polymer Matrix for Bioactive Conjugation
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Solution Overview
Problem
Current methods for creating porous materials lack the ability to provide a large surface area for bioactive reagent incorporation while maintaining biocompatibility and biodegradability, which is essential for pharmaceutical, medical, and agricultural applications.
Innovation Solution
A method involving the dissolution of materials in solvents, precipitation, washing, and freezing/thawing to create porous structures that can be conjugated with bioactive molecules, using solvents and cross-linking agents like chitosan and dendrimers to enhance biocompatibility and bioactivity, and further binding radionuclides for therapeutic applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If materials are dissolved in solvent and precipitated to create porous structures, then surface area is increased for bioactive reagent incorporation, but manufacturing complexity increases due to multiple processing steps
Solution Approach 1:
The patent applies porous materials by creating a porous polymer matrix through dissolution in solvent followed by precipitation. This porous structure provides extremely large surface area for bioactive reagent incorporation while maintaining a manageable manufacturing process through controlled phase transition
Solution Approach 2:
The patent utilizes phase transitions by dissolving the polymer material in solvent one, then precipitating it with solvent two to form a porous solid structure. The freezing and thawing cycles further exploit phase transitions to create and maintain the porous morphology, achieving high surface area through controlled physical state changes
2Adaptability or versatility
If porous materials are created through dissolution and precipitation, then bioactive molecule conjugation is enabled, but processing time increases due to multiple sequential steps
Solution Approach 1:
The patent applies preliminary action by dissolving the polymer material in solvent one before precipitation, creating a pre-prepared solution that facilitates controlled porous structure formation. This preliminary dissolution step enables subsequent efficient bioactive molecule conjugation while organizing the process flow to minimize total processing time
Solution Approach 2:
The patent utilizes parameter changes by adjusting solvent composition, temperature, and pH to control the precipitation process and porous structure formation. These parameter optimizations enable rapid structure creation that maintains bioactive molecule conjugation capability while reducing overall processing time through efficient phase transition control
3Volume of stationary object
If freezing and thawing cycles are used to create porous structures, then porosity is increased for drug delivery, but energy consumption increases due to temperature control requirements
Solution Approach 1:
The patent exploits phase transitions through controlled freezing and thawing cycles to create the porous structure. By optimizing the freezing temperature range and thawing conditions, the method achieves high porosity for effective drug delivery while minimizing energy consumption through efficient temperature control and reduced cycle times
Solution Approach 2:
The patent creates porous materials through phase transition control, where the frozen solvent forms ice crystals that create pores upon thawing. This approach achieves the required porosity for drug delivery applications while the controlled nature of the process allows for energy optimization by targeting specific temperature ranges rather than extreme conditions
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method produces porous materials with significantly larger surface areas, enabling effective bioactive molecule conjugation and radionuclide binding, leading to enhanced therapeutic delivery and tumor treatment efficacy, as demonstrated in tumor models.
Implementation Method 1
The porous material is made from freezing and thawing the precipitated material
Implementation Method 2
The porous material is made from freezing and thawing the precipitated material
Implementation Method 3
precipitating the material from the solution with solvent two
Data Source
AI summary
The present invention relates a method to make porous materials which are useful in pharmaceutical, medicine, industry, and agriculture. The most advantage of the porous materials is to provide extremely large surface area for further modification and to incorporate a bioactive reagent in a mild condition to make the porous materials bioactive, biocompatible and biodegradable.