Derivatizing Small Molecules for ELISA Detection
Solution Overview
Problem
Conventional ELISA methods are limited in detecting small molecular analytes due to their low immunogenicity, requiring alternative methods like mass spectrometry or chromatography, which are costly and infrastructure-intensive, making them unsuitable for point-of-care settings, especially in areas with poor infrastructure.
Innovation Solution
A method involving derivatization of small molecular analytes to form analyte-carrier complexes, followed by the use of detection immunoligands such as antibodies or antibody mimetics, allowing for their detection on the same equipment used for protein analytes using immunoassays like ELISA.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional ELISA methods are used to detect small molecular analytes, then the detection can be performed on simple equipment with low infrastructure requirements, but small molecular analytes cannot be detected due to their low immunogenicity
Solution Approach 1:
The patent introduces a carrier molecule as an intermediary to conjugate with small molecular analytes, forming immunogenic conjugates that can be detected by antibodies. The carrier molecule mediates between the non-immunogenic small analyte and the antibody detection system, enabling detection while maintaining the simplicity of ELISA equipment requirements
Solution Approach 2:
The patent changes the immunogenicity parameter of small molecular analytes by conjugating them with carrier molecules. This chemical modification transforms non-immunogenic small molecules into immunogenic conjugates, allowing them to be detected by antibody-based ELISA methods while maintaining equipment simplicity
2Reliability
If mass spectrometry or chromatography methods are used to detect small molecular analytes, then detection reliability is improved, but infrastructure requirements and costs increase significantly
Solution Approach 1:
The patent creates immunogenic copies or conjugates of small molecular analytes by attaching them to carrier molecules. These conjugates replicate the detection target in a form that antibodies can recognize, enabling reliable detection through simple ELISA equipment rather than complex mass spectrometry or chromatography systems
Solution Approach 2:
The patent makes the ELISA platform universal by enabling it to detect both protein analytes and small molecular analytes through the same equipment and methodology. The carrier conjugate approach allows a single detection system to handle multiple analyte types, eliminating the need for specialized infrastructure
3Adaptability or versatility
If different equipment is used for detecting protein analytes and small molecular analytes, then detection of both types is possible, but lab protocols become more complex and costs increase
Solution Approach 1:
The patent makes the ELISA detection platform universal by enabling it to detect both protein analytes and small molecular analytes through the same equipment and methodology. The carrier conjugate approach allows a single detection system to handle multiple analyte types, eliminating the need for specialized infrastructure
Solution Approach 2:
The patent merges the detection of protein analytes and small molecular analytes into a single unified ELISA protocol. By using carrier conjugates for small molecules, the method combines previously separate detection workflows into one standardized protocol, simplifying laboratory operations 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
Enables the sensitive and specific detection of small molecular analytes on inexpensive equipment, reducing costs and infrastructure requirements, and simplifying lab protocols, making it accessible for forensic, diagnostic, and predictive purposes.
Implementation Method 1
adding a detection immunoligand that binds to the analyte-carrier complex
Data Source
AI summary
The present invention telates to a method for detecting small molecular analytes in a sample, which method comprises derivatizing at least one small molecular analyte or at least one carrier molecule, in such way that one can bind to the other, thus forming at least one analyte-carrier complex, adding a detection immunoligand that s binds to the analyte-carrier complex, and detecting the small molecular analyte.