Dimethyltryptamine Hapten and Artificial Antigen for Rapid Detection

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Solution Overview

Problem

Current methods for detecting dimethyltryptamine, such as liquid chromatography-tandem mass spectrometry, require complex and expensive equipment, are operator-intensive, and have slow detection speeds, limiting their widespread use in drug detection.

Innovation Solution

Development of a dimethyltryptamine hapten and artificial antigen that can be used in a colloidal gold-fluorescence test paper for rapid and sensitive detection of dimethyltryptamine in urine, blood, saliva, and hair, utilizing a simpler and more accessible method.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If liquid chromatography-tandem mass spectrometry is used for detecting dimethyltryptamine, then measurement precision and reliability are improved, but device complexity and cost increase

Engineering Contradiction:
Improvedetection accuracyVSAvoidinstrument complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent creates a simplified copy of the detection capability by using colloidal gold-fluorescence test paper with specific antibody-antigen reactions, which replicates the core detection function of mass spectrometry without requiring complex instrumentation. The test paper uses a simplified chemical reaction system that mimics the specificity of mass spectrometric detection.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent employs disposable test paper strips that are inexpensive to manufacture and use. Each test paper is a single-use device that eliminates the need for expensive, maintainable instrumentation. The test paper contains pre-loaded reagents and antibodies that remain stable without complex environmental controls.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

2Measurement precision

If liquid chromatography-tandem mass spectrometry is used for detecting dimethyltryptamine, then measurement precision is improved, but ease of operation deteriorates

Engineering Contradiction:
Improvedetection accuracyVSAvoidoperator skill requirement
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The test paper system is designed to be self-contained and self-explanatory, requiring minimal operator intervention. The test paper automatically performs the detection function when exposed to the sample, with results visible through simple color changes or fluorescence. The system includes built-in controls and reference markers that guide the user through the process without requiring specialized training.

Inventive Principle:
Principle #25Self-service

3Measurement precision

If liquid chromatography-tandem mass spectrometry is used for detecting dimethyltryptamine, then measurement precision is improved, but productivity deteriorates

Engineering Contradiction:
Improvedetection accuracyVSAvoiddetection speed
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent segments the detection process into simple, rapid steps that can be performed in parallel. The test paper format allows multiple samples to be tested simultaneously on a single strip, and the detection reaction occurs rapidly without requiring sequential processing through complex chromatographic columns and mass spectrometric analysis stages.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent changes the detection parameters from slow, multi-stage instrumental analysis to rapid chemical reaction-based detection. The test paper uses optimized reaction conditions including pH buffers, temperature control, and timing protocols that enable complete detection in minutes rather than hours, while maintaining sufficient precision for forensic and clinical applications.

Inventive Principle:
Principle #35Parameter changes

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 colloidal gold-fluorescence test paper provides high sensitivity and accuracy for detecting dimethyltryptamine, with a detection limit of 1,000 ng/mL, allowing for rapid qualitative and quantitative analysis with minimal equipment requirements, facilitating wider drug detection applications.

Implementation Method 1

a dimethyltryptamine hapten, an artificial antigen and preparation methods and application thereof... the artificial antigen is obtained after the dimethyltryptamine hapten is bound to a carrier protein... can specifically identify dimethyltryptamine

Methodology Applied
Scientific EffectAntigen-antibody binding:

Implementation Method 2

When the dimethyltryptamine antigen is applied in a colloidal gold-fluorescence test paper, the dimethyltryptamine in urine, blood, saliva and hair can be detected rapidly, and the test paper has high detection sensitivity and good accuracy

Methodology Applied
Scientific EffectFluorescence: Fluorescence

Data Source

PatentUS20230393159A1Dimethyltryptamine hapten, artificial antigen and preparation methods and application thereof
Publication Date: 2023.12.07 HANGZHOU ALLTEST BIOTECH CO LTD
  • US20230393159A1 patent drawing
  • US20230393159A1 patent drawing
  • US20230393159A1 patent drawing

AI summary

The present invention relates to the field of detection of dimethyltryptamine. In order to solve the problems in the prior art that liquid chromatography-tandem mass spectrometry for detection of dimethyltryptamine has high requirements for instruments and operators and is difficult to popularize and low in detection speed, the present invention discloses a dimethyltryptamine hapten, an artificial antigen and preparation methods and application thereof. The dimethyltryptamine hapten is obtained by a reaction of N,N-dimethyl-5-hydroxytryptamine as a precursor and glutaric anhydride. The artificial dimethyltryptamine antigen obtained from the dimethyltryptamine hapten can be used for preparing a dimethyltryptamine monoclonal antibody and a dimethyltryptamine colloidal gold-fluorescence test paper. The test paper has high detection sensitivity, can be used for detecting dimethyltryptamine in urine, blood, saliva and hair rapidly, has low requirements for instruments, and is easy and convenient to operate and conducive to wide popularization of drug detection.