Plant Gel Agar Coagulation for Rapid Toxicity Detection

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Solution Overview

Problem

Current toxicity testing methods for drugs, food, and cosmetics are costly and require extensive animal or cell experiments, which are inefficient and raise ethical concerns, particularly since they often involve lengthy cytotoxicity assessments.

Innovation Solution

A rapid toxicity testing method using plant gel agar coagulation, where the coagulation time of a sample mixed with agar is measured to determine cytotoxicity, allowing for the classification of substances as toxic or non-toxic within 15 minutes, reducing the need for animal or cell experiments and lowering testing costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional animal or cell experiments are used for toxicity testing, then measurement precision and reliability are improved, but loss of time and cost increase significantly

Engineering Contradiction:
Improvetoxicity detection accuracyVSAvoidtesting duration
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent uses agar gel, a inexpensive and easily disposable material, to replace expensive and time-consuming animal or cell culture systems. The agar gel can be rapidly prepared and discarded after a single use, eliminating the need for maintaining complex cell culture conditions while providing sufficient toxicity detection capability.

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

Solution Approach 2:

The patent changes the physical state parameters of agar gel (temperature, concentration) to control its coagulation properties. By heating agar to dissolve it completely and then allowing it to cool and coagulate, the method creates a time-sensitive detection system where toxic substances interfere with the coagulation process, providing measurable results within minutes rather than days.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If animal experiments are conducted for toxicity assessment, then reliability of toxicity determination is improved, but ethical harm and cost increase

Engineering Contradiction:
Improvetoxicity assessment accuracyVSAvoidanimal sacrifice
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent introduces agar gel as an intermediary substance that mediates between the toxic substance being tested and the detection system. Instead of directly observing effects on living animals or cells, the toxic substance's interaction with agar gel coagulation serves as an indirect but reliable indicator of toxicity, eliminating animal sacrifice while maintaining assessment reliability.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent creates a simplified copy of the biological toxicity detection process using agar gel instead of complex living systems. The agar gel coagulation assay replicates the essential function of toxicity detection without requiring actual biological organisms, providing a ethical alternative that maintains diagnostic reliability.

Inventive Principle:
Principle #26Copying

3Measurement precision

If cell culture methods are used for cytotoxicity testing, then measurement precision is improved, but loss of time and resource consumption increase

Engineering Contradiction:
Improvecytotoxicity detection accuracyVSAvoidserum consumption
Core Design Contradiction:
Measurement precisionVSQuantity of substance

Solution Approach 1:

The patent replaces expensive and resource-intensive cell culture media containing serum with a simple agar gel system. The agar gel requires no serum or complex nutrients, eliminating resource consumption entirely while providing a disposable, single-use detection platform that is both economical and environmentally friendly.

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

Solution Approach 2:

The patent extracts the essential detection function from complex cell culture systems, isolating only the necessary component (agar gel coagulation response to toxic substances) while removing unnecessary elements such as serum, cell maintenance requirements, and lengthy incubation periods. This extraction creates a streamlined assay that maintains precision without resource consumption.

Inventive Principle:
Principle #2Taking out (Extraction)

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 method effectively detects cytotoxicity by observing the coagulation time of plant gel agar, providing a quick and cost-effective means to assess the toxicity of substances without the need for animal or cell testing, thereby reducing the ethical and financial burdens of traditional methods.

Implementation Method 1

The present invention provides a rapid and simple method for determining toxic substances based on a plant gel agar coagulation

Methodology Applied
Scientific EffectCoagulation: Coagulation

Implementation Method 2

A term 'gelation' refers to the branching of macromolecular chains that form a non-liquid colloid through a gradually increasing branching process

Methodology Applied
Scientific EffectGelation: Gel

Implementation Method 3

preparing an agar and a sample under study, and heating the agar to be completely dissolved to form a hot agar solution

Methodology Applied
Scientific EffectHeating: Heating

Data Source

PatentUS10385378B2Method for determining toxic substances by plant gel agar coagulation
Publication Date: 2019.08.20 KUO CHUN CHENG
  • US10385378B2 patent drawing
  • US10385378B2 patent drawing
  • US10385378B2 patent drawing

AI summary

The present invention relates to a method for rapid detection of toxicity comprising the steps of: preparing a plant gel agar and a sample under study, mixing the agar gel with the sample under study to form a mixture, and measuring a coagulation time of the mixture to determine cytotoxicity of the sample under study.