Ionic Liquid Antibody Protective Agent for Immunoelectrode Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current antibody protective agents, such as small molecule carbohydrates and surfactants, are not effective in maintaining antibody stability and activity, particularly in immunological detection applications, and there is a need for an environmentally friendly alternative.
Innovation Solution
An antibody protective agent comprising 1-sec-butyl-3-methylimidazolium hexafluorophosphate ionic liquid, bovine serum albumin, thimerosal, phosphate buffered saline, calcium chloride, and trehalose, which maintains antibody stability and activity at room temperature, and is used to enhance the stability and accuracy of immunoelectrodes for antigen detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If small molecule carbohydrates and surfactants are used as protective agents for antibody, then the antibody can be protected, but the protective effects are not satisfactory
Solution Approach 1:
The patent changes the chemical parameters of the protective agent by using ionic liquids with specific cations (imidazolium, pyridinium, ammonium) and anions (hexafluorophosphate, trifluoromethanesulfonate, perchlorate) to achieve superior antibody protection compared to conventional small molecule carbohydrates and surfactants. The ionic liquid's unique physical and chemical properties, including strong ionic bonds and low vapor pressure, provide enhanced stability and protective effects.
Solution Approach 2:
The patent employs composite protective agents combining ionic liquids with complementary substances to create a synergistic protection system. The ionic liquid forms a composite protective environment with antibodies, leveraging the unique properties of ionic liquids (strong ionic bonding, low vapor pressure, good solubility for polar and non-polar compounds) to enhance antibody stability and protective effects beyond what single conventional agents can achieve.
2Reliability
If ionic liquids are used as protective agents for antibody, then antibody stability and activity are maintained, but the complexity of the protective agent composition increases
Solution Approach 1:
The patent optimizes the concentration parameters of ionic liquids in the protective agent formulation, using specific ranges (0.01-5% v/v) to achieve effective antibody protection while controlling composition complexity. By carefully selecting and optimizing these parameters, the patent maintains antibody stability and activity without requiring overly complex multi-component formulations.
3Device complexity
If conventional protective agents are used, then the formulation is simple, but the protective effect is insufficient for prolonged storage
Solution Approach 1:
The patent utilizes ionic liquids that maintain their protective function throughout prolonged storage periods, effectively replacing the need for frequent replenishment or complex formulation systems. The ionic liquid's stable chemical properties and strong ionic bonding provide durable protection that persists through extended storage, eliminating the need for complex formulation strategies to maintain stability over time.
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 antibody protective agent significantly enhances the stability and accuracy of immunological detection by maintaining high antibody activity and impedance changes proportional to antigen concentrations, even after prolonged storage, as demonstrated by linear regression equations and impedance measurements.
Implementation Method 1
The ionic bond between the ions of ionic liquids is usually stronger than the Van der Waash forces between the molecules of ordinary liquids. For example, the ionic bond is 10 times stronger than the forces between water molecules.
Implementation Method 2
Ionic liquids have good solubility for a range of polar and non-polar compounds. Many ionic liquids can be used as solvents for Hydride (such as NaH and CaH2), carbides, nitrides, sulfides and various oxide salts.
Data Source
AI summary
The invention provides an effective and environmentally friendly antibody protective agent and the methods of using it in immunological detection. The antibody protective agent helps antibody to maintain relatively high immunological activity at room temperature. Working electrodes coated with antibodies and the antibody protective agent are installed in immunological detection devices to enhance stability and accuracy of immunological detection. The antibody protective agent is effectively used in the detection of a variety of toxins, for example, aflatoxin, staphylococcal enterotoxin, algae toxin, and vomitoxin.