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

Diffusion accelerates and enhances chirality selection.

Ryo Shibata1, Yukio Saito, Hiroyuki Hyuga

  • 1Department of Physics, Keio University, Yokohama 223-8522, Japan.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|October 10, 2006
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

The Pathological Role of LDL in Membranous Nephropathy and Diabetic Nephropathy and the Protective Efficacy of LDL Apheresis: A Narrative Review.

Toxins·2026
Same author

External Validation of Mortality Prediction Models in Japanese Transcatheter Aortic Valve Replacement Registry.

European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery·2025
Same author

Therapeutic plasma apheresis for IgA vasculitis-related gastrointestinal bleeding.

Therapeutic apheresis and dialysis : official peer-reviewed journal of the International Society for Apheresis, the Japanese Society for Apheresis, the Japanese Society for Dialysis Therapy·2025
Same author

Predictive Value of CHADS<sub>2</sub>, CHA<sub>2</sub>DS<sub>2</sub>-VASc and R<sub>2</sub>-CHADS<sub>2</sub> Scores for Short- and Long-Term Major Adverse Cardiac Events in Non-ST-Segment Elevation Myocardial Infarction.

Circulation journal : official journal of the Japanese Circulation Society·2023
Same author

Negative Effects of Diffuse Idiopathic Skeletal Hyperostosis on Bone Fusion after Transforaminal Lumbar Interbody Fusion.

Asian spine journal·2023
Same author

Impact of atherothrombotic risk stratification in patients with heavily calcified lesions following rotational atherectomy.

Journal of cardiology·2023
Same journal

Tension on dsDNA bound to ssDNA-RecA filaments may play an important role in driving efficient and accurate homology recognition and strand exchange.

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Publisher's Note: Amplitude-phase coupling drives chimera states in globally coupled laser networks [Phys. Rev. E 91, 040901(R) (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Erratum: Shapes of sedimenting soft elastic capsules in a viscous fluid [Phys. Rev. E 92, 033003 (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Erratum: Attenuation of excitation decay rate due to collective effect [Phys. Rev. E 90, 022142 (2014)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Publisher's Note: Role of connectivity and fluctuations in the nucleation of calcium waves in cardiac cells [Phys. Rev. E 92, 052715 (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Publisher's Note: Lattice Boltzmann approach for complex nonequilibrium flows [Phys. Rev. E 92, 043308 (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
See all related articles

Diffusion significantly impacts chirality selection in reaction-diffusion systems. Increased diffusion enhances chiral symmetry breaking and accelerates the development of chiral order, contrary to dilution effects.

Area of Science:

  • Chemical kinetics
  • Reaction-diffusion systems
  • Chirality and symmetry breaking

Background:

  • Chiral symmetry breaking is crucial in chemical and biological systems.
  • Reaction-diffusion models are used to study pattern formation and selection.
  • The role of diffusion in chiral selection within these models requires detailed investigation.

Purpose of the Study:

  • To investigate the effect of diffusion on chirality selection in a 2D reaction-diffusion model.
  • To understand how diffusion influences the enantiomeric excess (ee) and critical concentration for symmetry breaking.
  • To develop a model that interpolates between diffusionless and homogeneous limits.

Main Methods:

  • Monte Carlo simulations of a two-dimensional reaction-diffusion model.

Related Experiment Videos

  • The model includes achiral reactants forming chiral products (R or S) in a solvent of vacancies (V).
  • Monitoring chiral symmetry breaking using enantiomeric excess (ee) phi.

    • Main Results:

    • In diffusionless systems, strong autocatalysis drives chiral symmetry breaking, but dilution reduces ee.
    • Introducing diffusion increases the steady-state ee (phi) and decreases the critical concentration (c(c)).
    • A formula was proposed to interpolate ee and concentration across different diffusion regimes (D=0 to D=infinity).

    Conclusions:

    • Diffusion enhances chiral symmetry breaking and stabilizes chiral order in reaction-diffusion systems.
    • Diffusion accelerates the establishment of chiral order, with time scaling inversely with the diffusion constant.
    • The findings provide insights into the spatial effects governing chiral selection in chemical systems.