article · 02/10/2019
Probing in-mouth texture perception with a biomimetic tongue
Résumé
An experimental biomimetic tongue palate system has been developed to probe human in-mouth texture perception. Model tongues are made from soft elastomers patterned with fibrillar structures analogous to human filiform papillae. The palate is represented by a rigid flat plate parallel to the plane of the tongue. To probe the behaviour under physiological flow conditions, deflections of model papillae are measured using a novel fluorescent imaging technique enabling sub-micrometre resolution of the displacements. Using optically transparent Newtonian liquids under steady shear flow, we show that deformations of the papillae allow their viscosity to be determined from 1 Pa s down to the viscosity of water (1 mPa s), in full quantitative agreement with a previously proposed model (Lauga et al. 2016 Front. Phys.4, 35 (doi:10.3389/fphy.2016.00035)). The technique is further validated for a shear-thinning and optically opaque dairy system.
Citer cet article
Thomazo, J.-B., Pastenes, J.-C., Pipe, C.-J., Le Révérend, B., Wandersman, E., & Prevost, A. (2019). Probing in-mouth texture perception with a biomimetic tongue. Journal of Royal Society Interface, 16(159). https://doi.org/10.1098/rsif.2019.0362@article{Thomazo2019_322,
author = {Thomazo, Jean-Baptiste and Pastenes, Javier Contreras and Pipe, Christopher J and Le Révérend, Benjamin and Wandersman, Elie and Prevost, Alexis},
year = {2019},
month = {10},
title = {Probing in-mouth texture perception with a biomimetic tongue},
journal = {Journal of Royal Society Interface},
volume = {16},
number = {159},
abstract = {An experimental biomimetic tongue palate system has been developed to probe human in-mouth texture perception. Model tongues are made from soft elastomers patterned with fibrillar structures analogous to human filiform papillae. The palate is represented by a rigid flat plate parallel to the plane of the tongue. To probe the behaviour under physiological flow conditions, deflections of model papillae are measured using a novel fluorescent imaging technique enabling sub-micrometre resolution of the displacements. Using optically transparent Newtonian liquids under steady shear flow, we show that deformations of the papillae allow their viscosity to be determined from 1 Pa s down to the viscosity of water (1 mPa s), in full quantitative agreement with a previously proposed model (Lauga et al. 2016 Front. Phys.4, 35 (doi:10.3389/fphy.2016.00035)). The technique is further validated for a shear-thinning and optically opaque dairy system.},
url = {https://royalsocietypublishing.org/doi/10.1098/rsif.2019.0362},
doi = {10.1098/rsif.2019.0362},
}TY - JOUR
AU - Thomazo, Jean-Baptiste
AU - Pastenes, Javier Contreras
AU - Pipe, Christopher J
AU - Le Révérend, Benjamin
AU - Wandersman, Elie
AU - Prevost, Alexis
PY - 2019
DA - 2019/10/02
TI - Probing in-mouth texture perception with a biomimetic tongue
JO - Journal of Royal Society Interface
VL - 16
IS - 159
AB - An experimental biomimetic tongue palate system has been developed to probe human in-mouth texture perception. Model tongues are made from soft elastomers patterned with fibrillar structures analogous to human filiform papillae. The palate is represented by a rigid flat plate parallel to the plane of the tongue. To probe the behaviour under physiological flow conditions, deflections of model papillae are measured using a novel fluorescent imaging technique enabling sub-micrometre resolution of the displacements. Using optically transparent Newtonian liquids under steady shear flow, we show that deformations of the papillae allow their viscosity to be determined from 1 Pa s down to the viscosity of water (1 mPa s), in full quantitative agreement with a previously proposed model (Lauga et al. 2016 Front. Phys.4, 35 (doi:10.3389/fphy.2016.00035)). The technique is further validated for a shear-thinning and optically opaque dairy system.
DO - 10.1098/rsif.2019.0362
UR - https://royalsocietypublishing.org/doi/10.1098/rsif.2019.0362
ER -