Hydrotropic Release Reagent for Vitamin D Quantification

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Solution Overview

Problem

Current methods for releasing vitamin D from its binding complex with vitamin D-binding protein (DBP) are labor-intensive, difficult to automate, and prone to faults, making direct quantitative determination challenging.

Innovation Solution

A reagent containing hydrotropic substances and transition metal salts is used to efficiently release vitamin D from protein complexes, allowing for direct immunological determination without additional sample treatment, enabling a reliable and automatable method for vitamin D quantification.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional methods (organic solvents, phase-forming solvents, alkaline reagents) are used to release vitamin D from DBP, then vitamin D can be released from the binding complex, but the methods become labor-intensive, difficult to automate, and prone to faults

Engineering Contradiction:
Improvereliability of vitamin D releaseVSAvoidease of operation and automation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent changes the chemical parameters of the release reagent by combining hydrotropic substances with transition metal salts, creating a reagent system that releases vitamin D from DBP under mild, controlled conditions that are suitable for automation while maintaining high reliability

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The transition metal salt acts as an intermediary that facilitates the release of vitamin D from the DBP complex through metal-vitamin D interactions, enabling reliable release without requiring harsh conditions that complicate automation

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If conventional release methods are used, then vitamin D can be released from DBP, but additional sample treatment steps are required, increasing complexity and time

Engineering Contradiction:
Improvereliability of vitamin D releaseVSAvoidcomplexity of determination procedure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the release function and determination function into a single integrated reagent system, allowing vitamin D to be released from DBP and subsequently determined in one procedure without requiring separate treatment steps, thereby reducing complexity while maintaining reliability

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If conventional release methods are used, then vitamin D can be released from DBP, but the methods are time-consuming and not suitable for high-throughput analysis

Engineering Contradiction:
Improvereliability of vitamin D releaseVSAvoidproductivity of determination
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent optimizes the chemical parameters of the release reagent to achieve rapid, efficient release of vitamin D from DBP under mild conditions, significantly reducing the time required for analysis while maintaining high reliability, thus enabling high-throughput productivity

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 method achieves efficient release of vitamin D, reducing the complexity and time required for determination, providing a cost-effective and efficient means for quantifying 25-hydroxy vitamin D3 or 25-hydroxy vitamin D2 in biological samples.

Implementation Method 1

a release reagent which contains at least one hydrotropic substance and at least one transition metal salt

Methodology Applied
Scientific EffectHydrotropy:

Implementation Method 2

at least one transition metal salt

Methodology Applied
Scientific EffectMetal complex formation:

Data Source

PatentUS9863963B2Method and reagent for determining vitamin D metabolites
Publication Date: 2018.01.09 ORGENTEC DIAGNOSTIKA
  • US9863963B2 patent drawing
  • US9863963B2 patent drawing
  • US9863963B2 patent drawing

AI summary

The present invention relates to a method for releasing bound vitamin D by bringing a sample containing vitamin D into contact with a release reagent which contains at least one hydrotropic substance and at least one transition metal salt. The released vitamin D can subsequently be determined quantitatively. The present invention relates further to a reagent for releasing and optionally determining vitamin D, containing at least one hydrotropic substance and at least one transition metal salt, as well as to the use of such a release reagent for releasing and optionally determining vitamin D.