Cavitation Artifacts
Cavitation Artifacts - Related Videos
14:22
Activating Molecules, Ions, and Solid Particles with Acoustic Cavitation
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Cited by 6 •
2014
Acoustic cavitation in liquids submitted to power ultrasound creates transient extreme conditions inside the collapsing bubbles, which are the origin of unusual chemical reactivity and light emission, known as sonoluminescence. In the presence of noble gases, nonequilibrium plasma is formed. The "hot" particles and the photons generated by collapsing bubbles are able to excite species in solution.
08:24
Nitrogen Cavitation and Differential Centrifugation Allows for Monitoring the Distribution of Peripheral Membrane Proteins in Cultured Cells
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Cited by 15 •
2017
Here we present protocols for detergent-free homogenization of cultured mammalian cells based on nitrogen cavitation and subsequent separation of cytosolic and membrane-bound proteins by ultracentrifugation. This method is ideal for monitoring the partitioning of peripheral membrane proteins between soluble and membrane fractions.
11:14
A Microfluidic System with Surface Patterning for Investigating Cavitation Bubble(s)–Cell Interaction and the Resultant Bioeffects at the Single-cell Level
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Cited by 8 •
2017
A microfluidic chip was fabricated to produce pairs of gold dots for tandem bubble generation and fibronectin-coated islands for single-cell patterning nearby. The resultant flow field was characterized by particle image velocimetry and was employed to study various bioeffects, including cell membrane poration, membrane deformation, and intracellular calcium response.
07:36
Studying Cavitation Enhanced Therapy
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Cited by 6 •
2021
The presented experimental protocol can be used to perform real time measurements of cavitation activity in a cell culture device with the aim of enabling investigation of the conditions required for successful drug delivery and/or other bioeffects.
06:42
A Multi-hole Cryovial Eliminates Freezing Artifacts when Muscle Tissues are Directly Immersed in Liquid Nitrogen
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Cited by 9 •
2017
This protocol describes a procedure to freeze muscle tissues by plunging them directly into liquid nitrogen. This protocol also highlights a new cryovial that can avoid the "blanket effect" of nitrogen gas when liquid nitrogen contacts the tissue surface of a specimen.
FAQs
The decisive variable is local pressure. When it drops below the liquid’s vapor pressure, bubbles can nucleate; when pressure rises again, their rapid collapse produces pressure pulses, turbulence, and acoustic emissions. These secondary effects matter because an instrument may record the bubble-driven disturbance rather than the surrounding environmental condition it was intended to measure.
Compare measurements for the linked combination of pressure pulses, turbulence, and acoustic emissions rather than interpreting an isolated pattern as a physical feature. A suspected artifact becomes especially plausible when the disturbance occurs near a pump, turbine, ship propeller, or highly turbulent aquatic habitat, where bubble activity can influence observations.
Pressure recovery drives the collapse stage. After nucleation during a low-pressure interval, increasing pressure compresses the bubbles rapidly, generating pulses, turbulent motion, and sound. In environmental observations, that sequence explains why a short-lived pressure change can create a disproportionate sensor response or image distortion, even when the surrounding feature has not changed.
Begin by locating the measurement or image distortion, then examine whether it is accompanied by pressure pulses, turbulence, or acoustic emissions. Next, consider the local setting, including nearby pumps, turbines, ship propellers, or turbulent habitat. This sequence supports a reasoned classification of bubble-related interference rather than treating every unusual observation as an environmental feature.
Sonar, ultrasound, and flow measurements are particularly relevant because bubble-driven disturbances can interfere with their signals or alter the images they produce. The impact is not limited to one instrument type: acoustic sensing, imaging, and water-movement measurement may each show misleading patterns. Identifying the artifact improves interpretation of aquatic conditions and nearby physical structures.
Near pumps, turbines, and ship propellers, investigators should treat unusual readings as potentially influenced by bubble activity before assigning them to an environmental feature. The same caution applies in turbulent habitats. Recognizing the artifact’s characteristic signal allows monitoring teams to separate equipment- or flow-associated disturbances from observations that more directly represent the aquatic environment.