Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Inwardly rotating spiral waves in a reaction-diffusion system.

V K Vanag1, I R Epstein

  • 1Department of Chemistry and Volen Center for Complex Systems, Brandeis University, Waltham, MA 02454, USA. vanag@brandeis.edu

Science (New York, N.Y.)
|October 27, 2001
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Insights from chemical systems into Turing-type morphogenesis.

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences·2021
Same author

On the possibility of spontaneous chemomechanical oscillations in adsorptive porous media.

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences·2018
Same author

Systematic design of chemical oscillators. Part 33. Mechanism for the oscillatory bromate-iodide reaction.

Journal of the American Chemical Society·2011
Same author

Speed of traveling fronts in a sigmoidal reaction-diffusion system.

Chaos (Woodbury, N.Y.)·2011
Same author

Science education. Changing the culture of science education at research universities.

Science (New York, N.Y.)·2011
Same author

Wave propagation in a FitzHugh-Nagumo-type model with modified excitability.

Physical review. E, Statistical, nonlinear, and soft matter physics·2010

Researchers discovered inwardly rotating spirals, or "antispirals," in the Belousov-Zhabotinsky reaction within microemulsion droplets. This finding challenges previous observations of wave propagation in reaction-diffusion systems.

Area of Science:

  • Chemical kinetics
  • Reaction-diffusion systems
  • Complex systems

Background:

  • Concentric (target) and spiral waves are well-documented phenomena in reaction-diffusion systems like the Belousov-Zhabotinsky (BZ) reaction.
  • These waves typically propagate outwards from a central pacemaker.
  • The discovery of such waves dates back almost 30 years, with observations across diverse physical, chemical, and biological systems.

Purpose of the Study:

  • To report the novel observation of inwardly rotating spirals in the BZ reaction.
  • To investigate the generation of these "antispirals" in a specific microenvironment.
  • To validate experimental findings through computational simulations.

Main Methods:

  • Utilizing the Belousov-Zhabotinsky reaction dispersed in water droplets within a water-in-oil microemulsion.

Related Experiment Videos

  • Observing wave propagation patterns experimentally.
  • Conducting computer simulations to replicate and understand the observed phenomena.

    • Main Results:

    • Observation of inwardly rotating spiral waves, termed "antispirals," in the BZ system within microemulsion droplets.
    • Successful generation of these antispirals in computer simulations.
    • Demonstration of a deviation from the typical outward propagation of spiral waves.

    Conclusions:

    • The existence of inwardly rotating spirals (antispirals) is confirmed in the BZ reaction under specific microemulsion conditions.
    • These findings expand the known dynamics of spiral waves in reaction-diffusion systems.
    • The study highlights the influence of microenvironment on wave propagation patterns.