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Open Microfluidic Capillary Systems
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DOI：10.1021/acs.analchem.9b01429.png)
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Abstract
En 中文
Open microfluidic capillary systems are a rapidly evolving branch of microfluidics where fluids are manipulated by capillary forces in channels lacking physical walls on all sides. Typical channel geometries include grooves, rails, or beams and complex systems with multiple air-liquid interfaces. Removing channel walls allows access for retrieval (fluid sampling) and addition (pipetting reagents or adding objects like tissue scaffolds) at any point in the channel; the entire channel becomes a device-to-world interface, whereas such interfaces are limited to device inlets and outlets in traditional closed-channel microfluidics. Open microfluidic capillary systems are simple to fabricate and reliable to operate. Prototyping methods (e.g., 3D printing) and manufacturing methods (e.g., injection molding) can be used seamlessly, accelerating development. This Perspective highlights fundamentals of open microfluidic capillary systems including unique advantages, design considerations, fabrication methods, and analytical considerations for flow; device features that can be combined to create a toolbox for fluid manipulation; and applications in biology, diagnostics, chemistry, sensing, and biphasic applications.
Keywords:
ENHANCED RAMAN-SPECTROSCOPY
ON-A-CHIP
WETTING KINETICS
SOFT LITHOGRAPHY
FLOW
SURFACE
PAPER
DEVICES
TRANSPORT
PLATFORM
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6.7
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15.9W
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ANALYTICAL CHEMISTRY
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ANALYTICAL CHEMISTRYIF6.7
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