Jove
Visualize
Contact Us

Related Experiment Videos

Spatial bistability: a source of complex dynamics. From spatiotemporal reaction-diffusion patterns to chemomechanical

J Boissonade1, P De Kepper, F Gauffre

  • 1Centre de Recherche Paul Pascal (CNRS), 115 av. Dr. A. Schweitzer, F-33600, Pessac, France.

Chaos (Woodbury, N.Y.)
|October 4, 2006
PubMed
Summary

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

Presentation of Meibomian Acini Compared to Dermal Papillae of the Eyelid Margin, Using Confocal Laser Scanning Microscopy and Corresponding Histology.

Klinische Monatsblatter fur Augenheilkunde·2024
Same author

Characterization of aluminum, aluminum oxide and titanium dioxide nanomaterials using a combination of methods for particle surface and size analysis.

RSC advances·2022
Same author

Structure and elasticity of composite nanoparticle/polymer nanoshells (hybridosomes®).

Soft matter·2017
Same author

Dynamic dielectric response of electrorheological fluids in drag flow.

Physical review. E, Statistical, nonlinear, and soft matter physics·2015
Same author

Linear and nonlinear magnetic properties of ferrofluids.

Physical review. E, Statistical, nonlinear, and soft matter physics·2015
Same author

Photocontrol of luminescent inorganic nanocrystals via an organic molecular switch.

Physical chemistry chemical physics : PCCP·2014
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

Reaction-diffusion systems in gels can create spatial bistability, leading to diverse patterns like pulses and oscillations. This phenomenon, coupled with gel responsiveness, generates complex chemomechanical structures.

Area of Science:

  • Chemical kinetics
  • Reaction-diffusion systems
  • Soft matter physics

Background:

  • Reaction systems with slow induction followed by fast evolution can exhibit complex behaviors.
  • Spatial bistability, the coexistence of two stable states, is a key phenomenon in reaction-diffusion systems.
  • Gel reactors offer unique environments for studying reaction-diffusion phenomena due to confinement and diffusion gradients.

Purpose of the Study:

  • To demonstrate the generation of spatial bistability in thin gel reactors.
  • To explore the resulting reaction-diffusion instabilities and pattern formation.
  • To investigate the emergence of chemomechanical structures through coupled phenomena.

Main Methods:

  • Experimental studies using thin gel reactors with controlled diffusive feeding.

Related Experiment Videos

  • Theoretical modeling of reaction-diffusion systems exhibiting slow-fast dynamics.
  • Investigation of various chemical reactions to induce spatial bistability.

    • Main Results:

    • Spatial bistability was experimentally and theoretically confirmed in the studied gel reactors.
    • Diverse reaction-diffusion instabilities, including stationary pulses, labyrinthine patterns, and spatiotemporal oscillations, were generated.
    • Coupling spatial bistability with gel size responsiveness led to autonomous chemomechanical structures.

    Conclusions:

    • Spatial bistability is a readily achievable phenomenon in specific reaction-diffusion gel systems.
    • This bistability serves as a foundation for various reaction-diffusion instabilities and pattern formations.
    • The interplay between chemical reactions, diffusion, and material properties can create complex autonomous spatiotemporal patterns.