RT info:eu-repo/semantics/article T1 Incorporating Cellular Stochasticity in Solid–Fluid Mixture Biofilm Models A1 Carpio, Ana A1 Cebrián de Barrio, Elena K1 Biofilm K1 Cellular activity K1 Solid–fluid mixture K1 Thin film K1 Von Karman plate K1 Dynamic energy budget K1 Osmotic spread K1 Wrinkle formation K1 Cell differentiation K1 Matemáticas K1 Mathematics K1 Microbiología K1 Microbiology AB The dynamics of cellular aggregates is driven by the interplay of mechanochemical processes and cellular activity. Although deterministic models may capture mechanical features, local chemical fluctuations trigger random cell responses, which determine the overall evolution. Incorporating stochastic cellular behavior in macroscopic models of biological media is a challenging task. Herein, we propose hybrid models for bacterial biofilm growth, which couple a two phase solid/fluid mixture description of mechanical and chemical fields with a dynamic energy budget-based cellular automata treatment of bacterial activity. Thin film and plate approximations for the relevant interfaces allow us to obtain numerical solutions exhibiting behaviors observed in experiments, such as accelerated spread due to water intake from the environment, wrinkle formation, undulated contour development, and the appearance of inhomogeneous distributions of differentiated bacteria performing varied tasks. PB MDPI SN 1099-4300 YR 2020 FD 2020 LK http://hdl.handle.net/10259/8252 UL http://hdl.handle.net/10259/8252 LA eng DS Repositorio Institucional de la Universidad de Burgos RD 04-dic-2024