Cross Slot Junction
Cross Slot Junction - Related Videos
13:12
Quantitative Analyses of all Influenza Type A Viral Hemagglutinins and Neuraminidases using Universal Antibodies in Simple Slot Blot Assays
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Cited by 19 •
2011
A simple slot blot method was developed for the quantification of influenza viral hemagglutinin and neuraminidase using universal antibodies targeting their most conserved sequences identified through bioinformatics analyses. This innovative approach may provide a useful alternative to quantitative determination of all viral hemagglutinin and neuraminidase.
10:40
Measuring Neuromuscular Junction Functionality
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Cited by 7 •
2017
A functional assessment of the neuromuscular junction (NMJ) can provide essential information on the communication between muscle and nerve. Here we describe a protocol to comprehensively evaluate both the NMJ and muscle functionality using two different muscle-nerve preparations, i.e. soleus-sciatic and diaphragm-phrenic.
01:11
P-N junction
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2024
A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...
08:45
Genetic Crosses
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2023
To dissect genetic processes or create organisms with novel suites of traits, scientists can perform genetic crosses, or the purposeful mating of two organisms. The recombination of parental genetic material in the offspring allows researchers to deduce the functions, interactions, and locations of genes. This video will examine how genetic crosses were influential in developing Mendel's three laws of inheritance, which form the basis of our understanding of genetics. One genetic crossing...
08:55
Making a Geologic Cross Section
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2023
Source: Laboratory of Alan Lester - University of Colorado Boulder Geologic maps were first made and utilized in Europe, in the mid-to-late 18th century. Ever since, they have been an important part of geological investigations all around the world that strive to understand rock distributions on the surface of the earth, in the subsurface, and their modification through time. A modern geologic map is a data-rich representation of rocks and rock-structures in a two-dimensional plan view. The...
FAQs
The stagnation point creates a localized region where opposing inlet streams balance before fluid exits through the perpendicular outlet. Near this location, the resulting extensional flow stretches suspended material along one axis and compresses it across the other. This spatially organized deformation gives researchers a defined position for examining how polymers, cells, or other soft materials respond to flow.
Inlet flow rates and channel dimensions determine the balance and strength of motion around the junction. Adjusting these variables changes how the fluid is distributed and how strongly suspended objects experience stretching or transverse compression. Controlled variation therefore allows experiments to compare material responses under different flow conditions while maintaining a defined microfluidic geometry.
Extensional flow applies directional stretching rather than exposing a sample only to general fluid motion. That distinction makes deformation easier to relate to the material’s mechanical behavior, including responses associated with viscoelasticity. In bioengineering experiments, observing how a polymer, cell, or other soft material changes shape can connect flow-induced mechanics with biological function.
A microfluidic device is configured with opposing inlets and a perpendicular outlet, then the inlet flow rates and channel dimensions are selected to establish the desired central flow environment. Researchers introduce suspended polymers, cells, or other soft materials and observe their behavior near the junction. Comparing samples or conditions reveals how controlled extension affects deformation.
Experiments can reveal how suspended materials deform when exposed to a controlled extensional field and can support measurements related to viscoelasticity. The junction also provides a consistent location for observing molecular or cellular shape changes. These outcomes help researchers relate visible deformation and flow response to the mechanical behavior of the tested material.
This geometry is useful when a study needs a defined, tunable environment for examining flow-induced mechanics in polymers, cells, or other soft materials. Its simple microfluidic design fits quantitative lab-on-a-chip experiments and supports comparisons across flow settings. The resulting observations can help connect material properties with biological function in bioengineering research.