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Questions and Answers
Microfluidic platforms can be defined by actuation principles or applied forces.
True
The pressure-driven microfluidic platform involves the use of gravity for fluid transport through channels.
False
Immunoassays are directly related to the concept of micro valves in microfluidic systems.
False
High-pressure liquid chromatography chips are commonly used in magnetic microfluidic platforms.
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Ink-jet printing technology can be considered a form of applied force in microfluidic platforms.
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In Microfluidics, laminar flow allows for a predictable flow profile.
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Microfluidic systems have high thermal mass, leading to increased energy consumption.
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One of the characteristics of Microfluidics is a small surface-to-volume ratio.
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Immunoassays are commonly used in Microfluidic Systems - Bio-MEMS.
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In Microfluidics, micro valves and micro pumps are not essential components.
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Microfluidic systems aim to have high consumption of reagents to ensure accuracy in testing.
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Study Notes
Microfluidic Platforms
- Classified into different types based on actuation principles or applied forces: Pressure-driven, Capillary, Magnetic, Centrifugal, Acoustic, Electrokinetic
- Each platform has its unique characteristics and applications
Characteristics of Microfluidics
- Chips or systems with small footprint
- Efficient mass transport
- Low thermal mass
- Low energy consumption
- Laminar flow (allows predictable flow profile)
- Large surface-to-volume ratio in micro channels and droplets
- Smallest volumes can be handled (nL → fL)
Laminar Flow
- Flow direction is predictable
- Can be observed in microfluidic systems
Capillary Force / Surface Tension
- Contact angle (Θ) is important in microfluidic systems
- Can be influenced by surface properties and liquids used
Microfluidics in Nature
- Examples: Cilia, Lotus Effect, Blood Flow, Flagella
- Inspiration for microfluidic systems can be drawn from nature
Introduction to Microfluidic Systems
- Motivation: Test automation, miniaturization, integration
- Objectives: Fast handling of small fluid volumes, small device footprint, low reagent consumption, portable, robust, easy-to-handle, cheap, disposable
Definition of Terms
- Microfluidic Systems: Handling small fluid volumes, automation, integration, and miniaturization
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Description
Test your knowledge on microfluidic platforms defined by actuation principles like pressure, capillary, magnetic, and acoustic electrokinetic. This quiz covers concepts from the course 'Microfluidic Systems - Bio-MEMS' taught by Prof. Dr.-Ing. Uwe Schnakenberg.
