Aptamer-Based Multiplexed Detection of Levamisole and Cocaine
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Solution Overview
Problem
Current methods for detecting and quantifying levamisole and cocaine adulterants in biological samples are inefficient and lack specificity, leading to complications in clinical and forensic investigations.
Innovation Solution
Development of functional nucleic acid ligands, such as aptamers, that can bind with high affinity to levamisole and cocaine, allowing for simultaneous generation and identification of biomolecules using the SELEX method, enabling multiplexed identification and detection in a single reaction volume.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional detection methods are used for levamisole and cocaine, then detection can be performed, but the methods are inefficient and lack specificity
Solution Approach 1:
The invention segments the detection process by developing separate aptamers for different targets (levamisole, cocaine, and their combinations). Each aptamer is specifically designed to bind to its target molecule, allowing simultaneous detection of multiple adulterants in a single sample through multiplexed SELEX methodology
Solution Approach 2:
The patent introduces aptamers as intermediary molecules that mediate between the target adulterants and the detection system. These functional nucleic acid ligands serve as specific binding intermediaries that enable highly selective detection of levamisole and cocaine with femtomolar sensitivity
2Measurement precision
If multiple detection methods are used to identify different adulterants, then identification accuracy improves, but time and resource requirements increase
Solution Approach 1:
The invention merges multiple detection capabilities into a single multiplexed SELEX system. By combining the selection and detection processes for levamisole, cocaine, and their combinations into one integrated methodology using functional aptamers, the system achieves accurate identification of multiple adulterants simultaneously without requiring sequential separate assays
Solution Approach 2:
The patent creates universal aptamers that can detect multiple target molecules (levamisole, cocaine, and their combinations) through a single detection platform. The functional nucleic acid ligands are designed with multi-specificity, allowing one detection system to universally identify various adulterants present in biological samples
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 method enables efficient and specific detection and quantification of levamisole and cocaine in biological samples, reducing time, expense, and physical space requirements, while providing a high-capacity identification process for clinical and forensic applications.
Implementation Method 1
Aptamers are typically characterized by binding to their target molecules via non-Watson-Crick (i.e. non-hybridization) mechanisms, such as by intermolecular forces resulting from the secondary or tertiary structure of the aptamer
Data Source
AI summary
The present invention relates functional ligands to target molecules, particularly to functional nucleic acids and modifications thereof, and to methods for simultaneously generating, for example, numerous different functional biomolecules, particularly to methods for generating numerous different functional nucleic acids against multiple target molecules simultaneously. The present invention further relates to functional ligands which bind with affinity to target molecules, such as drug compounds, such as levamisole and cocaine.