Artificial multimodal receptors based on ion relaxation dynamics.
Science
; 370(6519): 961-965, 2020 11 20.
Article
em En
| MEDLINE
| ID: mdl-33214277
ABSTRACT
Human skin has different types of tactile receptors that can distinguish various mechanical stimuli from temperature. We present a deformable artificial multimodal ionic receptor that can differentiate thermal and mechanical information without signal interference. Two variables are derived from the analysis of the ion relaxation dynamics the charge relaxation time as a strain-insensitive intrinsic variable to measure absolute temperature and the normalized capacitance as a temperature-insensitive extrinsic variable to measure strain. The artificial receptor with a simple electrode-electrolyte-electrode structure simultaneously detects temperature and strain by measuring the variables at only two measurement frequencies. The human skin-like multimodal receptor array, called multimodal ion-electronic skin (IEM-skin), provides real-time force directions and strain profiles in various tactile motions (shear, pinch, spread, torsion, and so on).
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Fenômenos Fisiológicos da Pele
/
Tato
/
Temperatura Corporal
/
Receptores Artificiais
Limite:
Humans
Idioma:
En
Revista:
Science
Ano de publicação:
2020
Tipo de documento:
Article