title: Fronts and pulses in an enzymatic reaction catalyzed by glucose oxidase.
abstract: Waves and patterns in living systems are often driven by biochemical reactions with enzymes as catalysts and regulators. We present a reaction-diffusion system catalyzed by the enzyme glucose oxidase that exhibits traveling wave patterns in a spatially extended medium. Fronts and pulses propagate as a result of the coupling between the enzyme-catalyzed autocatalytic production and diffusion of hydrogen ions. A mathematical model qualitatively explains the experimental observations.
authors.affiliation: Department of Chemistry and Volen Center for Complex Systems, MS 015, Brandeis University, Waltham, MA 02454, USA. david.miguez@hms.harvard.edu
authors.forename: David G
authors.initials: DG
authors.lastname: Míguez
authors.forename: Vladimir K
authors.initials: VK
authors.lastname: Vanag
authors.forename: Irving R
authors.initials: IR
authors.lastname: Epstein
mesh_terms: D001234:Aspergillus niger / Q000201:enzymology*; D002384:Catalysis; D004058:Diffusion; D005949:Glucose Oxidase / Q000378:metabolism*
chemical_list: D005949:Glucose Oxidase