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Related Concept Videos

Shock Waves01:16

Shock Waves

2.6K
While deriving the Doppler formula for the observed frequency of a sound wave, it is assumed that the speed of sound in the medium is greater than the source's speed through it. When this condition is breached, a shock wave occurs.
When the source's speed approaches the speed of sound, constructive interference between successive wavefronts emitted by the source occurs immediately behind it. Initially, scientists believed that this constructive interference would result in such high...
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The Wave Nature of Light02:12

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The nature of light has been a subject of inquiry since antiquity. In the seventeenth century, Isaac Newton performed experiments with lenses and prisms and was able to demonstrate that white light consists of the individual colors of the rainbow combined together. Newton explained his optics findings in terms of a "corpuscular" view of light, in which light was composed of streams of extremely tiny particles traveling at high speeds according to Newton's laws of motion.
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Wave Parameters01:10

Wave Parameters

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The simplest mechanical waves are associated with simple harmonic motion and repeat themselves for several cycles. These simple harmonic waves can be modeled using a combination of sine and cosine functions. Consider a simplified surface water wave that moves across the water's surface. Unlike complex ocean waves, in surface water waves, water moves vertically, oscillating up and down, whereas the disturbance of the wave moves horizontally through the medium. If a seagull is floating on the...
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Reflection of Waves01:07

Reflection of Waves

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When a wave travels from one medium to another, it gets reflected at the boundary of the second medium. A common example of this is when a person yells at a distance from a cliff and hears the echo of their voice. The sound waves (longitudinal waves) traveling in the air are reflected from the bounding cliff. Similarly, flipping one end of a string whose other end is tied to a wall causes a pulse (transverse wave) to travel through the string, which gets reflected upon reaching the wall. In...
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Half wave rectifier01:20

Half wave rectifier

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A half-wave rectifier is a fundamental circuit in electronics, designed to convert alternating current (AC) voltage into a unidirectional voltage. It utilizes the simplest form of diode rectification, where the circuit comprises a single diode in series with a load resistor and an AC power source.
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Full wave rectifier01:22

Full wave rectifier

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A full-wave rectifier is a device that converts alternating current (AC) to direct current (DC) and is more efficient than its half-wave counterpart. It typically includes a center-tapped transformer, two diodes, and a load resistor. The secondary winding of the transformer is divided to provide two equal voltages of opposite polarities, which is the pivotal element of full-wave rectification.
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Related Experiment Video

Updated: Feb 11, 2026

Shock Wave Application to Cell Cultures
05:39

Shock Wave Application to Cell Cultures

Published on: April 8, 2014

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3D multicellular model of shock wave-cell interaction.

Dongli Li1, Andre Hallack1, Robin O Cleveland1

  • 1University of Oxford, Department of Engineering Science, Parks Rd., Oxford OX1 3PJ, UK.

Acta Biomaterialia
|May 4, 2018
PubMed
Summary

Computational models reveal shock waves significantly impact cells, especially in clusters. Cancer cells can be targeted in early-stage tumors, advancing shock wave therapy.

Keywords:
Cancer therapyCell morphology effectCell spheroidNumerical modelShock wave-cell interaction

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Area of Science:

  • Biophysics
  • Computational Biology
  • Biomedical Engineering

Background:

  • Understanding shock wave-tissue interaction is vital for medical applications like cancer therapy.
  • Realistic modeling requires considering cellular environment and morphology.

Purpose of the Study:

  • To investigate shock wave-cell interactions using 3D computational models in realistic tissue environments.
  • To assess the influence of cellular geometry and neighboring cells on cell response to shock waves.
  • To explore targeted cancer cell therapy in a tumor-mimicking environment.

Main Methods:

  • Development of 3D computational models of healthy and cancerous cells.
  • Simulation of shock wave interactions with single cells and multicellular structures.
  • Utilizing tissue-mimicking phantoms and multicellular spheroids.

Main Results:

  • Cellular geometry minimally affects membrane strain but influences stress.
  • Neighboring cells significantly amplify cell response (fourfold increase).
  • Four cell layers are sufficient for modeling membrane strain; full 3D models are needed for stress analysis.
  • Cancer cells show specific targeting potential in early-stage tumor models.

Conclusions:

  • Realistic 3D models provide crucial insights into shock wave-cell dynamics.
  • Neighboring cell density is a critical factor in shock wave response.
  • The study supports the potential for targeted shock wave therapy in early cancer treatment.