Thermal Cycling Device with Segmented Heating Zones
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional thermal cyclers for nucleic acid amplification, such as PCR, face challenges with suboptimal temperature control, inefficient energy use, and difficulty in real-time analysis of reaction mixtures, leading to slower cycling times and increased energy consumption.
Innovation Solution
A device and method utilizing a radiation source for heating and a cooling mechanism, combined with a temperature sensor and controller, to precisely control the temperature of reaction mixtures by selectively exposing reaction containers to heating and cooling zones, allowing for rapid and efficient thermal cycling with real-time temperature monitoring and feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional thermal cyclers use a temperature controlled block to hold reaction mixtures, then a relatively large number of samples can be processed simultaneously, but the devices are relatively slow in cycling the reaction mixtures and are relatively energy intensive to operate
Solution Approach 1:
The invention divides the thermal cycler into multiple independent heating zones, each capable of independently controlling temperature for specific reaction containers. This segmentation allows different zones to operate at different temperatures simultaneously, enabling faster cycling through parallel temperature changes across multiple zones, while still processing many samples at once.
Solution Approach 2:
The invention employs dynamic control of heating and cooling rates through independent zone management. Each heating zone can be activated or deactivated independently based on real-time temperature feedback, allowing the system to rapidly adjust temperatures for different sample groups without waiting for entire blocks to equilibrate, thus significantly improving cycling speed.
2Quantity of substance
If conventional thermal cyclers use a temperature controlled block to hold reaction mixtures, then a relatively large number of samples can be processed simultaneously, but the devices are relatively energy intensive to operate
Solution Approach 1:
By dividing the thermal cycler into multiple independent heating zones, the system only activates heating elements in zones that require temperature changes. This localized heating approach dramatically reduces energy consumption compared to heating entire blocks, while still maintaining the capability to process large numbers of samples simultaneously across different zones.
Solution Approach 2:
Each heating zone provides locally optimized temperature control tailored to specific sample requirements. This allows the system to apply heat only where and when needed, rather than uniformly heating all samples, thereby reducing overall energy consumption while maintaining effective processing capacity for multiple samples.
3Adaptability or versatility
If conventional thermal cyclers are used for nucleic acid amplification, then the technique has wide variety of biological applications, but temperature control is less than ideal and detection of the reaction mixture in situ is difficult
Solution Approach 1:
The invention incorporates temperature sensors in each heating zone that provide real-time feedback to the control system. This feedback mechanism allows the system to continuously monitor and adjust temperatures to maintain precise control, ensuring accurate thermal cycling for various nucleic acid amplification applications while enabling detection of reaction mixtures through transparent container walls.
4Adaptability or versatility
If conventional thermal cyclers are used for nucleic acid amplification, then the technique has wide variety of biological applications, but detection of the reaction mixture in situ is difficult
Solution Approach 1:
The reaction containers are designed with transparent walls that serve multiple functions: they contain the reaction mixture, allow optical detection of reaction progress in real-time, and permit heating from multiple directions. This multi-functionality enables both wide biological applications and easy detection without requiring separate detection apparatus.
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 faster thermal cycling times, improved temperature control, and reduced energy consumption, while allowing for real-time analysis of reaction mixtures, enhancing the effectiveness of nucleic acid amplification processes.
Implementation Method 1
a radiation source for exposing a reaction container to radiation thereby heating a reaction mixture provided therein
Implementation Method 2
A temperature sensor positioned in the chamber for sensing a temperature indicative of a reaction mixture temperature
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
Apparatus for controlling the temperature of a reaction mixture held within a reaction container, the apparatus including a radiation source for exposing the reaction container to radiation thereby heating the reaction mixture, a temperature sensor for sensing a temperature indicative of a reaction mixture temperature and a controller for controlling the radiation source in accordance with the reaction mixture temperature to thereby selectively heat the reaction mixture.