Biomolecule Separation via Electro-Desorption from Magnetic Nanoparticles
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Solution Overview
Problem
Conventional magnetic separation of biomolecules is time-consuming, costly, and can cause aggregation or degeneration due to the buffer/pH switch method, which is not efficient for biomolecule recognition, detection, and purification.
Innovation Solution
A method utilizing magnetic nanoparticles with peptide tags attached to biomolecules, allowing for controlled release through electro-desorption by applying an electric potential, reducing the need for buffer/pH switches and enhancing separation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If magnetic separation is performed using conventional buffer/pH switch method, then biomolecules can be separated from liquid medium, but the process becomes time-consuming and causes biomolecule aggregation or degeneration
Solution Approach 1:
The patent replaces the chemical buffer/pH switch mechanism with an electric field-based electro-desorption mechanism. Magnetic nanoparticles functionalized with peptide tags are used to capture biomolecules, and an applied electric potential directly desorbs the biomolecules from the nanoparticle surfaces, eliminating the need for buffer changes and reducing separation time while maintaining biomolecule integrity.
Solution Approach 2:
The patent changes the controlling parameter for biomolecule release from chemical pH/buffer conditions to electrical potential. By applying a controlled electric potential to the magnetic nanoparticles, the biomolecules are rapidly desorbed without requiring buffer switches, thereby reducing separation time and preventing biomolecule degradation.
2Productivity
If magnetic separation uses buffer/pH switch method, then biomolecules can be released from magnetic nanoparticles, but additional costs are incurred and elution is not completed before equilibrium
Solution Approach 1:
The patent substitutes the buffer-based chemical elution system with an electric field-based electro-desorption system. The electric potential directly induces desorption of biomolecules from magnetic nanoparticle surfaces, achieving rapid and complete elution without the need for buffer consumption and without waiting for equilibrium.
Solution Approach 2:
The patent applies the electric potential for electro-desorption at the optimal moment when magnetic nanoparticles are positioned for maximum efficiency. This preliminary and precisely timed electric field application ensures complete elution before equilibrium is reached, maximizing productivity and minimizing buffer consumption.
3Reliability
If conventional magnetic separation is performed, then biomolecules can be purified, but the process requires expensive buffer switches and complex procedures
Solution Approach 1:
The patent replaces the complex multi-step buffer switching procedure with a single electric field application step. Magnetic nanoparticles functionalized with peptide tags provide specific binding, and a subsequent electric potential application achieves complete desorption, simplifying the overall purification procedure while maintaining effectiveness and reducing costs.
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 approach provides a faster, cheaper, and more precise method for biomolecule separation, minimizing biomolecule degradation and aggregation, while allowing for controlled release and recycling of magnetic nanoparticles.
Implementation Method 1
a magnetic source (110) proximal to the volume of the chamber, arranged and configured to generate a magnetic field extending at least between the collecting area and the remaining volume for containing the liquid medium
Implementation Method 2
a working electrode (112) proximal to the volume of the chamber, arranged and configured to generate an electric field at the collecting area
Data Source
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AI summary
The present invention relates to a method for separating biomolecules from a liquid medium. The method comprises adding magnetic nanoparticles to the liquid medium comprising the biomolecules, the biomolecules each adapted to bind to respective surfaces of the magnetic nanoparticles; bringing the liquid medium to which the magnetic nanoparticles have been added into contact with a collector; applying a magnetic field to the liquid medium in contact with the collector to attract the magnetic nanoparticles bound with the biomolecules to a surface of the collector; and applying an electric potential to the surface of the collector to release the biomolecules from the magnetic nanoparticles.