Cyclic Radial Strain
Cyclic Radial Strain - Related Videos
25:12
Mechanical Stimulation of Stem Cells Using Cyclic Uniaxial Strain
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Cited by 6 •
2007
It is widely understood that mechanical forces in the body can influence cell differentiation and proliferation. Here we present a video protocol demonstrating the use of a custom-built bioreactor for delivering uniaxial cyclic tensile strain to stem cells cultured on flexible micropatterned substrates.
08:37
Cyclic Voltammetry (CV)
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2023
Source: Laboratory of Dr. Kayla Green — Texas Christian University A Cyclic Voltammetry (CV) experiment involves the scan of a range of potential voltages while measuring current. In the CV experiment, the potential of an immersed, stationary electrode is scanned from a predetermined starting potential to a final value (called the switching potential) and then the reverse scan is obtained. This gives a 'cyclic' sweep of potentials and the current vs. potential curve derived from the data is...
02:39
Evaluating Motor Impairment in C. elegans Models Using the Radial Locomotion Assay
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2025
This video demonstrates the use of a radial locomotion assay to evaluate motor dysfunction in C. elegans expressing either wild-type or ALS-mutant human TDP-43 protein. Worms with varying levels of wild-type or mutant TDP-43 expression are allowed to crawl, and their movement is measured by the radial distance traveled from the central point on the assay plate. The assay distinguishes between mild, moderate, and severe motor impairments based on the distance traveled by the different C. elegans...
10:12
Protein Misfolding Cyclic Amplification of Prions
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Cited by 7 •
2012
Protein misfolding cyclic amplification (PMCA) is an in vitro assay for the study of prion conversion and strain and species barriers. It can also be used as a prion detection assay.
02:58
Measurement of Compressive Stress-Strain Response at Small-Strains
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2025
This protocol presents the configuration of a compression test device capable of precisely measuring the mechanical properties of microstructures in the small-strain region, along with a systematic method for compression testing using this device. The proposed device can be used to analyze various microstructures and the mechanical behavior of polymer-based materials.
FAQs
The key biological event is mechanotransduction: cells convert recurring mechanical cues into responses. As the construct repeatedly changes tension and geometry, those cues can be associated with cell alignment, proliferation, and matrix remodeling. Studying these linked changes helps researchers determine how a material or cultured tissue responds to dynamic loading rather than merely observing its behavior at one fixed deformation.
Radial loading preserves the connection between deformation and the construct’s circular architecture. In a circular membrane or vessel-like scaffold, expansion and contraction alter the geometry experienced by the cells across the structure. This makes the approach useful when researchers want mechanical observations to remain relevant to cardiovascular or tissue-engineering systems built around curved, outward-from-center forms.
Unlike a single static stretch, cyclic radial strain exposes cells to recurring changes instead of one sustained deformation. That distinction matters because the experiment can compare responses to dynamic loading with responses observed under a fixed mechanical state. The resulting comparison helps clarify whether alignment, proliferation, or matrix remodeling is associated with repeated mechanical stimulation.
Interpretation depends on linking the imposed strain to the biological response measured in the construct. Researchers can examine whether recurring deformation corresponds with changes in alignment, proliferation, or matrix remodeling. These outcomes provide different views of adaptation: organization, cell-number-related behavior, and changes in the surrounding matrix, respectively.
A basic study starts with a circular membrane, vessel-like scaffold, or cultured tissue and applies controlled, time-varying deformation in the radial direction. Cells therefore experience repeated changes in tension and geometry during the exposure. Researchers then relate that imposed mechanical history to observed biological responses, using the comparison to assess how the construct behaves under dynamic loading.
Bioengineers can use the method to evaluate biomaterials and tissue-engineering constructs that must function in changing mechanical environments. It is also useful for studying cardiovascular systems, where a vessel-like geometry provides a relevant experimental setting. The principal outcome is a relationship between applied radial deformation and biological behavior, which can guide construct design.
In bioengineering, the approach connects material mechanics with cell and tissue behavior. A scaffold or membrane is not evaluated only as a passive structure; its deformation is considered alongside alignment, proliferation, and matrix remodeling in cultured tissue. This integrated view helps researchers judge whether a construct reproduces aspects of a physiological mechanical environment.