title: Emergent reaction-diffusion phenomena in capillary tubes.
abstract: Pattern formation in the Belousov-Zhabotinsky reaction experiments carried out by filling capillary glass tubes with catalyst-immobilized gel for the reaction is reported. Under unperturbed and oscillatory conditions, helicoidal waves appear spontaneously. Quantitative structural data of those helices are obtained by devising an optical tomography technique for extracting rotationally symmetric structures from time-lapse data. Space-time representation of the catalyst oxidation reveals wave transmission phenomenon that is studied further by numerical simulations of a reduced spatial model.
authors.affiliation: Nanotechnology Research Institute, National Institute of Advanced Industrial Science and Technology, AIST Central 5-2, Higashi 1-1-1, Tsukuba, Ibaraki 305-8565, Japan.
authors.forename: Petteri
authors.initials: P
authors.lastname: Kettunen
authors.forename: Tomohiko
authors.initials: T
authors.lastname: Yamaguchi
authors.forename: Hajime
authors.initials: H
authors.lastname: Hashimoto
authors.forename: Takashi
authors.initials: T
authors.lastname: Amemiya
authors.forename: Bettina
authors.initials: B
authors.lastname: Steinbock
authors.forename: Stefan C
authors.initials: SC
authors.lastname: Müller
mesh_terms: D000818:Animals; D001703:Biophysics / Q000379:methods*; D002384:Catalysis; D004058:Diffusion; D005898:Glass; D006801:Humans; D021621:Imaging, Three-Dimensional; D018715:Microscopy, Video; D008956:Models, Chemical; D008962:Models, Theoretical; D009206:Myocardium / Q000473:pathology; D017711:Nonlinear Dynamics; D009991:Oscillometry; D012815:Signal Processing, Computer-Assisted; D014057:Tomography, X-Ray Computed / Q000379:methods