Microfluidics is a scientific field that exists at the intersection of the fields of engineering, physics, chemistry and biotechnology. It deals with the manipulation of microlitre volumes of liquids which are processed on devices called microfluidic chips. As a result, microfluidics allows complex protocols and procedures to be performed on chips.
There are a variety of different types of microfluidic chips in existence. For example, digital, paper and centrifugal microfluidic chips are all in use today. MARS focuses on continuous flow microfluidics fabricated from polycarbonate and PDMS.
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− | Designing, manufacturing and using a microfluidic device requires significant knowledge investment in topics such as the basics of fluid dynamics and specialised software such Adobe Illustrator. If a synthetic biologist does not want to design their own chip, they can search through published literature. However, these devices are often highly specialized and not useful for the average synbio researcher | + | Designing, manufacturing and using a microfluidic device requires significant knowledge investment in topics such as the basics of fluid dynamics and specialised software such Adobe Illustrator. If a synthetic biologist does not want to design their own chip, they can search through published literature. However, these devices are often highly specialized and not useful for the average synbio researcher. After either designing their own chip, or selecting a published microfluidic, they would begin the time consuming process of designing and modeling their chip using Comsol. Once the design is finalized, they can move on to the manufacturing stage of the workflow. Most microfluidic fabrications methods, such as soft lithography, require a high initial startup cost, technical agility, time investment and more educational investment to learn how to correctly manufacture the chips. |
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Revision as of 19:15, 31 October 2017
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Project
Description
Description
Overview and Introduction
Problem Statement
If a synthetic biologist would like to use microfluidics in their lab, they would follow the traditional design and manufacture workflow. This consists of three general stages divided into:
Designing, manufacturing and using a microfluidic device requires significant knowledge investment in topics such as the basics of fluid dynamics and specialised software such Adobe Illustrator. If a synthetic biologist does not want to design their own chip, they can search through published literature. However, these devices are often highly specialized and not useful for the average synbio researcher. After either designing their own chip, or selecting a published microfluidic, they would begin the time consuming process of designing and modeling their chip using Comsol. Once the design is finalized, they can move on to the manufacturing stage of the workflow. Most microfluidic fabrications methods, such as soft lithography, require a high initial startup cost, technical agility, time investment and more educational investment to learn how to correctly manufacture the chips.
After manufacturing their device the synthetic biologist can then move onto implementation and testing. However, there are many difficulties that may arise when testing a device. For example, certain chips may require some external apparatus, such as off-chip metering or electronic components. These can vary from design to design, adding additional costs and time investment in learn how to use them.
Even after investing time and money into this microfluidics workflow, success is not guaranteed. The process may need to be repeated dozens of times to get a fully functional microfluidic chip.
These difficulties with replicating and testing microfluidic devices was experienced first-hand by the BostonU HW Team. While replicating chips from journal articles, similarly to our synthetic biologist, we noted a distinct lack of:
As a result, the final chip manufactured cannot be run correctly due to lack of protocol documentation. Additionally, it is not possible to use a quantitative system of evaluation to ensure the device is working as intended. We have classified these limitations as barriers in the “implementation” stage of the microfluidics workflow.
This year’s iGEM Team, decided to focus on removing these barriers in the implementation stage of the workflow which led to the creation of our project MARS (Microfluidic Applications for Research in Synbio).
MARS aims to increase the accessibility and relevance of microfluidics to synthetic biology through three defined goals:
These goals have been built on and expanded to create the three branches of MARS which are:
Explore our Wiki to understand more about each of these branches!
- Design
- Manufacture
- Implementation
Designing, manufacturing and using a microfluidic device requires significant knowledge investment in topics such as the basics of fluid dynamics and specialised software such Adobe Illustrator. If a synthetic biologist does not want to design their own chip, they can search through published literature. However, these devices are often highly specialized and not useful for the average synbio researcher. After either designing their own chip, or selecting a published microfluidic, they would begin the time consuming process of designing and modeling their chip using Comsol. Once the design is finalized, they can move on to the manufacturing stage of the workflow. Most microfluidic fabrications methods, such as soft lithography, require a high initial startup cost, technical agility, time investment and more educational investment to learn how to correctly manufacture the chips.
After manufacturing their device the synthetic biologist can then move onto implementation and testing. However, there are many difficulties that may arise when testing a device. For example, certain chips may require some external apparatus, such as off-chip metering or electronic components. These can vary from design to design, adding additional costs and time investment in learn how to use them.
Even after investing time and money into this microfluidics workflow, success is not guaranteed. The process may need to be repeated dozens of times to get a fully functional microfluidic chip.
These difficulties with replicating and testing microfluidic devices was experienced first-hand by the BostonU HW Team. While replicating chips from journal articles, similarly to our synthetic biologist, we noted a distinct lack of:
- Thorough documentation of experimental procedure
- Design specificity and access to design files
- An evaluation system to grade your device against
As a result, the final chip manufactured cannot be run correctly due to lack of protocol documentation. Additionally, it is not possible to use a quantitative system of evaluation to ensure the device is working as intended. We have classified these limitations as barriers in the “implementation” stage of the microfluidics workflow.
Our Project
The CIDAR Lab at Boston University has tackled many of these design and manufacture shortcomings with an easy to use software workflow, including last year's iGEM Hardware project Neptune, and a low-cost rapid prototyping manufacturing system Makerfluidics. However, this system does not address the barriers we had identified under “Implementation” which limits the accessibility of microfluidics to everyday synthetic biology labs.This year’s iGEM Team, decided to focus on removing these barriers in the implementation stage of the workflow which led to the creation of our project MARS (Microfluidic Applications for Research in Synbio).
MARS aims to increase the accessibility and relevance of microfluidics to synthetic biology through three defined goals:
- Increase the ease of access of microfluidics through
- Design chips relevant for day to day use in synthetic biology
- Create a standardized method of evaluating chip functionality
These goals have been built on and expanded to create the three branches of MARS which are:
Explore our Wiki to understand more about each of these branches!