High-Field Gel Electrophoresis Buffer Optimization
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Solution Overview
Problem
Current gel electrophoresis techniques face challenges in achieving high resolution and reduced run times while maintaining stability and buffering capacity, especially when increasing field strength, which affects the separation of proteins in SDS-PAGE gels.
Innovation Solution
The development of electrophoretic systems and formulations that allow for higher field strengths up to 50% more than conventional systems, using a discontinuous buffer system with specific gel amine and ampholyte buffers, and a pH range of 5.5 to 7.5, enabling faster separation of proteins in less than 30 minutes without compromising resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If field strength is increased to reduce run time, then productivity is improved, but manufacturing precision deteriorates
Solution Approach 1:
The patent applies parameter changes by optimizing the buffer system composition (specific pH range of 5.5-7.5, specific buffer concentrations) and gel composition to enable high field strength operation while maintaining separation resolution. The discontinuous buffer system with specific amine and ampholyte buffers allows the gel to withstand higher electric fields without compromising protein separation quality.
2Duration of action of moving object
If field strength is increased to reduce run time, then duration of action is improved, but reliability deteriorates
Solution Approach 1:
The patent changes operational parameters by establishing an optimized field strength range and buffer composition that maintains separation consistency even at higher speeds. The specific buffer system with controlled pH and ionic strength ensures reproducible results across multiple runs, enabling reliable high-speed electrophoresis.
3Reliability
If conventional buffer systems are used to maintain stability, then reliability is improved, but productivity deteriorates
Solution Approach 1:
The patent changes the buffer system parameters from conventional systems to a specialized discontinuous buffer system with specific pH range (5.5-7.5) and composition (amine buffers combined with ampholyte buffers). This optimized buffer system provides both the stability needed for reliable operation and the electrical properties that enable faster separation at higher field strengths.
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
These systems enable high-resolution protein separation at increased field strengths, reducing run times to less than 30 minutes while maintaining stability and buffering capacity, achieving comparable or improved resolution compared to existing methods.
Implementation Method 1
Gel electrophoresis is a common procedure for the separation of biological molecules, such as deoxyribonucleic acid (DNA), ribonucleic acid (RNA), polypeptides and proteins. In gel electrophoresis, the molecules are separated into bands according to the rate at which an imposed electric field causes them to migrate through a filtering gel.
Implementation Method 2
SDS molecules associate with the macromolecules and impart a uniform charge density to them, substantially negating the effects of any innate molecular charge.
Data Source
AI summary
Electrophoretic systems, formulations and methods are described which allow a user to perform electrophoresis experiments under conditions of high voltage and with reduced run time. An electrophoretic system, formulation or method may be run at 50% higher field strength than comparable systems already in use in the art. The presently described systems and formulations may be run at voltages above 225 V, above 250 V, above 275 V, above 300 V, above 325 V or above 350 V. The time required for performing an electrophoresis experiment may be reduced to less than about 30 minutes, less than about 20 minutes, less than about 15 minutes or less than about 12 minutes.