Microfluidic Gene Amplification Chip Thermal Dissolution Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current gene amplification methods are inefficient in terms of time and accuracy, particularly in microfluidic devices, where thermal dissolution and amplification processes are not optimized for RNA viruses and other microorganisms, leading to suboptimal gene detection and amplification results.
Innovation Solution
A microfluidic gene amplification chip with a well structure that thermally dissolves microorganisms to release genes, followed by controlled temperature amplification using a temperature controller, which includes a photothermal film or Peltier element for precise temperature control, and an optical device for measuring optical signals to detect amplified genes, with optional reverse transcription for RNA viruses using a reverse transcriptase.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If thermal dissolution is performed at high temperature to release genes from microorganisms, then gene release efficiency is improved, but processing time increases and energy consumption increases
Solution Approach 1:
The patent applies parameter changes by optimizing the thermal dissolution temperature to 95-99°C and maintaining it for 5-15 minutes, which balances gene release efficiency with processing time. This specific temperature range and duration represent a optimized parameter combination that resolves the contradiction between complete gene release and excessive processing time.
Solution Approach 2:
The patent incorporates preliminary action through a viral membrane softening step performed before thermal dissolution. By pre-treating the microbial samples with membrane softening agents, the cell walls are weakened in advance, which facilitates faster and more efficient gene release during the subsequent thermal dissolution step, thereby reducing overall processing time.
2Measurement precision
If thermal dissolution temperature is increased to improve gene release, then gene amplification accuracy is improved, but energy consumption increases
Solution Approach 1:
The patent optimizes the thermal dissolution temperature to a specific range of 95-99°C, which is high enough to ensure complete gene release from microorganisms but controlled to minimize excessive energy consumption. This parameter optimization resolves the contradiction between achieving sufficient gene release for accurate amplification and reducing energy usage.
Solution Approach 2:
By performing viral membrane softening before thermal dissolution, the patent reduces the energy barrier for gene release. The pre-softening step weakens microbial cell walls, allowing the thermal dissolution to proceed more efficiently at lower temperatures and for shorter durations, thereby reducing energy consumption while maintaining amplification accuracy.
3Adaptability or versatility
If well diameter is increased to accommodate larger microbes, then adaptability to different microbes is improved, but detection precision of optical signals decreases
Solution Approach 1:
The patent employs segmentation by dividing the sample into multiple individual wells, each containing a single microbe or a small number of microbes. This segmentation approach allows for standardized well dimensions that optimize optical detection while maintaining adaptability through parallel processing of multiple samples. The high-density well array enables accommodation of various microbe sizes across many wells rather than requiring each well to accommodate all sizes.
Solution Approach 2:
The patent resolves the size-accommodation problem by transitioning to a high-dimensional well array structure with thousands of wells arranged in a grid pattern. Instead of increasing individual well diameter, the system accommodates diverse microbe sizes by providing numerous smaller wells, effectively solving the problem in a spatial dimension rather than by enlarging individual containment spaces.
4Productivity
If processing time is reduced for rapid gene amplification, then productivity is improved, but amplification completeness decreases
Solution Approach 1:
The patent applies preliminary action by performing viral membrane softening before the main thermal dissolution and gene amplification steps. This pre-treatment step prepares the microbial samples in advance, making them more susceptible to rapid gene release and amplification. As a result, the subsequent amplification process can be completed faster while maintaining completeness, because the preliminary softening has already facilitated easier access to the genetic material.
Solution Approach 2:
The patent optimizes multiple parameters simultaneously including thermal dissolution temperature (95-99°C), dissolution time (5-15 minutes), and amplification conditions to achieve a balanced processing protocol. These parameter optimizations enable rapid yet complete gene amplification by fine-tuning the thermal and temporal conditions to maximize reaction efficiency without sacrificing amplification completeness.
Data Source
AI summary
An apparatus for gene amplification includes a gene amplification chip including a well configured to accept a sample that is loaded into the well; the gene amplification chip being configured to: thermally dissolve the sample in the well so that a microbe present in the sample is thermally dissolved in the well to release genes in the microbe; and amplify the released genes in the well. The apparatus for gene amplification also includes a temperature controller configured to control a thermal dissolution temperature and a gene amplification temperature of the well.