Bead Beating System With Dry Blocking Agent
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for lysing cells and extracting nucleic acids from microorganisms in samples are complex and suffer from nucleic acid loss due to absorption on beads, and require dilution with lysis buffers, which limits detection accuracy and sensitivity.
Innovation Solution
The use of bead beating systems with integrated dry blocking agents that prevent nucleic acid absorption on beads, allowing for effective lysis and extraction without the need for pre-mixing with lysis buffers, utilizing chaotropic agents, detergents, nucleotides, and oligonucleotides to enhance nucleic acid recovery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If lysis buffers are added to the sample fluid, then cell lysis and nucleic acid extraction are facilitated, but the sample fluid is diluted and DNA concentration decreases
Solution Approach 1:
The patent extracts the blocking agent function from the lysis buffer and incorporates it directly into the bead beating system. This allows the lysis buffer to be omitted, preventing sample dilution while maintaining nucleic acid extraction efficiency. The blocking agent is integrated into the beads or tube, providing its function independently of the lysis buffer.
Solution Approach 2:
The bead beating system is enhanced with multi-functionality by integrating blocking agents that simultaneously prevent nucleic acid adsorption to beads and facilitate efficient lysis. This multi-functional design eliminates the need for separate lysis buffer addition, maintaining both extraction efficiency and sample concentration.
2Ease of manufacture
If bead beating is performed without blocking agents, then nucleic acid absorption on beads occurs, but the process is simpler
Solution Approach 1:
The blocking agent is incorporated into the bead beating system in advance, before the nucleic acid extraction process begins. This preliminary incorporation ensures that blocking sites are available from the start, preventing nucleic acid adsorption to beads during the beating process and subsequent handling.
Solution Approach 2:
The blocking agent acts as an intermediary substance that prevents direct interaction between nucleic acids and bead surfaces. By introducing this intermediary, the patent eliminates harmful adsorption while maintaining the mechanical lysis effectiveness of the bead beating process.
3Reliability
If more lysis buffer is used to prevent nucleic acid absorption, then absorption is reduced, but sample dilution increases
Solution Approach 1:
The patent extracts the blocking agent function from the lysis buffer system and relocates it to the bead beating system. This separation allows blocking to occur without the dilution effect of adding large volumes of lysis buffer, achieving both high recovery and high concentration.
Solution Approach 2:
The patent changes the parameter of where blocking occurs - from occurring in solution (requiring buffer) to occurring at the bead surface interface. This parameter change allows blocking to happen with minimal or no buffer addition, preventing dilution while ensuring nucleic acid recovery.
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 approach enables higher extraction rates of DNA and RNA, reducing sample dilution and nucleic acid loss, thereby improving detection sensitivity and accuracy in genetic testing.
Implementation Method 1
a plurality of particles movable relative to each other are introduced in the sample fluid and the sample fluid with the particles contained therein is oscillated such that the particles are capable of mechanically destroying cell walls of the microorganisms contained in the sample fluid
Implementation Method 2
the use of bead beating in nucleic acid extraction methods results in nucleic acid loss due to absorption on the beads and that such loss can be prevented by the appropriate amount of blocking agent to block binding sites on the beads
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
The present disclosure provides improved methods for bead beating and a bead beating system useful therefor. The bead beating system comprises a sample tube, beads, and a dry blocking agent, and methods for using the bead beating system to extract nucleic acids from cells containing the nucleic acids.