Boron Carbide Support for Polypeptide Isolation
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Solution Overview
Problem
Current protein purification methods, such as solid-phase extraction, often require strongly acidic conditions and organic solvents like acetonitrile, which can denature proteins and pose safety hazards, limiting their application and analysis possibilities.
Innovation Solution
The use of boron carbide as a support material for binding polypeptides at a pH below their isoelectric point, allowing effective adsorption and subsequent elution at a pH above the isoelectric point, thereby preserving protein integrity and enabling safer handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If solid-phase extraction is performed using conventional methods, then polypeptide binding is achieved, but strongly acidic conditions and organic solvents are required which can denature proteins and pose safety hazards
Solution Approach 1:
The patent changes the chemical parameters of the support material from conventional acidic/organic-based systems to boron carbide, which enables polypeptide binding at neutral to basic pH levels. This parameter change eliminates the need for strongly acidic conditions and organic solvents, thereby preventing protein denaturation and reducing safety hazards while maintaining binding efficiency
Solution Approach 2:
The patent employs boron carbide particles as a disposable support material that can be easily discarded after use. These particles provide effective polypeptide binding without requiring complex recovery procedures or posing safety hazards, replacing conventional reusable but hazardous extraction materials
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
This method effectively isolates and purifies polypeptides without denaturation, allowing for easier analysis of other biomolecules and reducing the need for hazardous solvents, while maintaining the integrity and usability of the purified proteins.
Implementation Method 1
The polypeptides adsorb to the boron carbide support material, presumably by ionic interactions
Data Source
AI summary
The present invention relates to a method for isolating and/or purifying at least one polypeptide from a polypeptide-containing sample, characterized in that the sample is contacted with a boron carbide support material at a pH which allows the binding of the polypeptide to the boron carbide support material. Such isolating can, for example, be used to remove polypeptides from a sample or else to purify and/or to concentrate polypeptides. A matrix comprising a boron carbide support material for purification of polypeptides is further disclosed according to the invention.