Pneumatic Shock Tube
Pneumatic Shock Tube - Related Videos
03:56
Inducing Traumatic Injury in a Brain Slice Using a Shock Tube Device
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2025
In this video, a shock tube device is used to generate a shockwave by rupturing a polymer diaphragm through controlled pressurization. The shockwave impacts brain slices contained in a secured bag, inducing traumatic injury to the brain slice.
09:48
Drosophila Adult Olfactory Shock Learning
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Cited by 36 •
2014
The method to measure adult Drosophila associative memory is described. The assay is based on the ability of the fly to associate an odor presented with a negative reinforcer (electric shock) and then recall this information at a later time, allowing memory to be measured.
11:01
Bacterial Transformation: The Heat Shock Method
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2023
Transformation is the process that occurs when a cell ingests foreign DNA from its surroundings. Transformation can occur in nature in certain types of bacteria. In molecular biology, transformation is artificially reproduced in the lab via the creation of pores in bacterial cell membranes. Bacterial cells that are able to take up DNA from the environment are called competent cells. In the laboratory, bacterial cells can be made competent and DNA subsequently introduced by a procedure called...
10:01
The Visual Colorimetric Detection of Multi-nucleotide Polymorphisms on a Pneumatic Droplet Manipulation Platform
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Cited by 2 •
2016
This work presents a simple and visual method to detect multi-nucleotide polymorphisms on a pneumatic droplet manipulation platform. With the proposed method, the entire experiment, including droplet manipulation and detection of multi-nucleotide polymorphisms, can be performed near 23 °C without the aid of advanced instruments.
09:34
Microfluidic Pneumatic Cages: A Novel Approach for In-chip Crystal Trapping, Manipulation and Controlled Chemical Treatment
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Cited by 6 •
2016
Herein, we describe the fabrication and operation of a double-layer microfluidic system made of polydimethylsiloxane (PDMS). We demonstrate the potential of this device for trapping, directing the coordination pathway of a crystalline molecular material and controlling chemical reactions onto on-chip trapped structures.
FAQs
The pressure difference across the diaphragm governs how abruptly the pressure front forms and how strongly the test chamber is loaded. Because high- and low-pressure regions are established before rupture, investigators can create a defined impulse rather than rely on an uncontrolled event. This controlled loading helps separate effects of rapid pressure change from variability in shock exposure.
The diaphragm initially isolates the compressed gas from the lower-pressure region, allowing the test conditions to be established before exposure begins. When it ruptures, gas moves rapidly through the tube and produces the traveling pressure front. Its failure therefore marks the transition from stored pressure to mechanical loading of the sample.
Reproducible mechanical loading allows researchers to compare neural responses across samples or experiments under a defined impulse. Consistent exposure is especially important when characterizing injury mechanisms, examining changes associated with blast-related or traumatic brain injury, and evaluating whether a potential neuroprotective treatment changes the resulting response.
Researchers place the neural tissue, cell culture, or experimental animal in the test chamber, establish the high- and low-pressure conditions, and then rupture the separating diaphragm. The resulting pressure front travels through the tube and exposes the biological system to a defined impulse. Subsequent measurements can be used to characterize injury-related responses.
The approach can be applied to neural tissue, cell cultures, and experimental animals. Using more than one model supports different research questions: cultures can provide controlled biological systems, while tissue or animal models can extend investigation to broader responses associated with blast-related or traumatic brain injury.
These experiments can help characterize how rapid mechanical loading produces neural injury, identify biomarkers associated with that injury, and evaluate potential neuroprotective treatments. The controlled impulse connects the exposure condition with measured biological responses, giving researchers a basis for comparing injury patterns and assessing whether an intervention alters those outcomes.