Pressure-driven Microfluidics
Pressure-driven Microfluidics - Related Videos
12:26
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Cited by 4 •
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In this video we first describe fabrication and operation procedures of a surface acoustic wave (SAW) acoustic counterflow device. We then demonstrate an experimental setup that allows for both qualitative flow visualization and quantitative analysis of complex flows within the SAW pumping device.
04:35
A Microfluidic Device for Real-Time Imaging and Pressure Tracking During Biofilm Formation
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2026
Source: Kurz, D. L., et al. Microfluidic Platform to Study Bioclogging in Porous Media. J. Vis. Exp. (2022)The video demonstrates the use of a microfluidic device to study biofilm formation. A bacterial suspension is introduced into the microchannel, followed by incubation to allow biofilm development. Flow is then resumed, and pressure monitoring along with imaging is used to detect biofilm formation and pore blockage over time.
10:35
Studies of Bacterial Chemotaxis Using Microfluidics - Interview
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09:47
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Cited by 20 •
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08:43
Pneumatically Driven Microfluidic Platform for Micro-Particle Concentration
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Cited by 3 •
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The present protocol describes a pneumatic microfluidic platform that can be used for efficient microparticle concentration.
FAQs
Flow rate and direction emerge from the pressure gradient together with channel dimensions, fluid resistance, and flow conditions. Changing any of these factors can alter how quickly fluid moves or which pathway it follows. Designing the network therefore requires matching pressure conditions to the intended transport route, delivery timing, and handling requirements of the experiment.
Laminar flow keeps fluid movement highly predictable at microscale dimensions. Rather than producing irregular, turbulent motion, the flow supports controlled transport through defined channel paths. This predictability helps researchers manage reagent delivery, liquid movement, and cell handling with greater consistency, which is particularly valuable when several operations must occur within a compact bioengineering platform.
Pressure conditions, channel dimensions, fluid resistance, and overall flow conditions provide the main variables for controlling transport. Their combined effects determine the rate and direction of movement through the network. Adjusting these features allows a platform to coordinate multiple fluid-handling tasks and supports scalable, programmable operation rather than relying on uncontrolled liquid movement.
A connected network of microscale channels can use controlled flow paths to coordinate transport, mixing, cell handling, and reagent delivery. Because the flow is predictable, these operations can be arranged within a compact system and performed in a planned sequence. This integration is central to lab-on-a-chip platforms that combine several experimental steps in one device.
A typical workflow begins by establishing pressure conditions across the channel network, then directing fluid through paths whose dimensions and resistance shape the resulting movement. Researchers can use the controlled flow for transport, mixing, cell handling, or reagent delivery. The resulting behavior is evaluated in relation to the intended biological analysis, diagnostic process, or tissue-engineering task.
Researchers may choose this approach when an experiment requires precise handling of small liquid volumes, controlled delivery, or coordinated operations in a compact format. The method is relevant to biological analysis, diagnostics, cell handling, reagent delivery, and tissue engineering. Its programmable flow control also supports lab-on-a-chip designs that integrate multiple experimental steps.