Dual-network polyacrylamide/carboxymethyl chitosan-grafted-polyaniline conductive hydrogels for wearable strain sensors.
Carbohydr Polym
; 295: 119848, 2022 Nov 01.
Article
en En
| MEDLINE
| ID: mdl-35988999
Conductive, wearable, and flexible hydrogel-based sensors are considered as promising applications in human motion detection and physiological signal monitoring. However, it is still a problem to integrate multiple functions into one material for the next-generation smart devices. Herein, we fabricated an ionic/electronic dual conductive hydrogel by combining the chemically crosslinked polyacrylamide (PAM) and the physically crosslinked carboxymethyl chitosan-grafted-polyaniline (CMCS-g-PANI)/Ag+ network. The double-network hydrogel displays a high stretchability, repeatable adhesiveness, antibacterial activities, and biocompatibility. It also has high sensitivity and stable electrical performance for wearable strain sensors. Furthermore, we assembled a self-powered strain sensor based on the conversion of chemical energy to electrical energy. It can be used for human motion detection even without external power supply. This work provides an avenue for the development of multifunctional hydrogels with outstanding mechanical and electronic performances for application in wearable electronic devices.
Palabras clave
Acrylamide (AM, AR, PubChem CID: 6579); AgNO(3) (AR, PubChem CID: 24470); Ammonium persulfate (APS, AR, PubChem CID: 62648); Aniline (AR, PubChem CID: 6115); Carboxymethyl chitosan (CMCS, AR, PubChem CID: 71306969); Conductive; Hydrochloric acid (HCl, GR, PubChem CID: 313); Hydrogel; Multifunctional; N,N-methylene bis-acrylamide (MBAA, AR, PubChem CID: 8041); Self-power; Sodium hydroxide (NaOH, AR, PubChem CID: 14798); Strain sensor
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Quitosano
/
Dispositivos Electrónicos Vestibles
Límite:
Humans
Idioma:
En
Revista:
Carbohydr Polym
Año:
2022
Tipo del documento:
Article
País de afiliación:
China
Pais de publicación:
Reino Unido