Inertial Microfluidics
Inertial Microfluidics - Related Videos
08:08
Oscillation and Reaction Board Techniques for Estimating Inertial Properties of a Below-knee Prosthesis
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Cited by 35 •
2014
Body segmental inertial properties are required for inverse dynamics modeling. Using an oscillation and reaction board technique, inertial properties of below-knee prostheses were measured. Using direct measures of prosthesis inertia in the inverse dynamics model of the prosthetic leg resulted in lower magnitudes of resultant joint forces and moments.
10:35
Studies of Bacterial Chemotaxis Using Microfluidics - Interview
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Cited by 1 •
2007
07:37
Label-free Neutrophil Enrichment from Patient-derived Airway Secretion Using Closed-loop Inertial Microfluidics
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Cited by 2 •
2018
In this research, we demonstrate a label-free neutrophil separation method from clinical airway secretions using closed-loop operation of spiral inertial microfluidics. The proposed method would expand the clinical in vitro assays for various respiratory diseases.
01:03
Inertial Frames of Reference
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2023
Newton’s first law is usually considered to be a statement about reference frames. It provides a method for identifying a special type of reference frame: the inertial reference frame. In principle, we can make the net force on a body zero. If its velocity relative to a given frame is constant, then that frame is said to be inertial. So, by definition, an inertial reference frame is a reference frame where Newton's first law holds valid. Newton's first law applies to objects with constant...
01:27
Non-inertial Frames of Reference
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2023
A reference frame accelerating or decelerating relative to an inertial frame is a non-inertial frame. To help understand this, consider what taking off in an airplane, turning a corner in a car, riding a merry-go-round, and the circular motion of a tropical cyclone all have in common. All these systems are accelerating, decelerating, or rotating relative to the Earth; hence, they all are non-inertial frames. All these systems exhibit inertial forces, which merely seem to arise from motion,...
FAQs
The channel’s flow creates inertial lift forces that move cells away from some regions and toward stable equilibrium positions. Those positions are not random: they reflect each cell’s size, shape, and deformability. Consequently, particles with different physical properties can become spatially organized within the channel, creating the basis for focusing and subsequent separation in mixed samples.
Curved channel geometries add secondary Dean-flow drag to the inertial lift forces. This additional flow changes how particles move across the channel and helps direct them toward predictable locations. The interaction is useful because channel design can exploit both effects when a sample must be processed rapidly while maintaining reproducible particle positioning.
Flow velocity matters because inertial effects become useful when fluid moves at sufficient velocity. Under those conditions, particles experience the forces needed to migrate toward equilibrium positions rather than remaining diffusely distributed. Selecting an appropriate operating regime therefore influences whether focusing, separation, and enrichment occur effectively, although no universal velocity applies to every sample or channel.
A workflow can introduce a mixed sample into a microscale channel, use flow-induced migration to focus or separate its components, and produce an enriched fraction for analysis. In immunology and infection studies, this preparation step can reduce sample complexity before investigators examine immune cells, pathogens, or infected cells.
It can isolate immune-cell populations, concentrate pathogens, or enrich infected cells before analysis. These uses connect the physical sorting behavior of the channel with studies of immune and infectious samples. Because the approach requires minimal labeling, it can also simplify preparation and reduce reagent use in diagnostic or research workflows.
The approach can support rapid processing with minimal labeling and lower reagent use. It may also improve throughput and reproducibility, which matters when many clinical or experimental samples must be handled consistently. The resulting focused, separated, or enriched material can then support downstream analysis of immune-cell populations, pathogens, or infected cells.