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Soft and wet touch‐sensing system made of hydrogel
Author(s) -
Sawahata Kiyoshi,
Gong Jian Ping,
Osada Yoshihito
Publication year - 1995
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.1995.030161002
Subject(s) - deformation (meteorology) , materials science , rheology , self healing hydrogels , polyelectrolyte , soft materials , soft robotics , diode , composite material , optoelectronics , nanotechnology , polymer chemistry , actuator , electrical engineering , polymer , engineering
Abstract Mechanical deformation of water‐swollen polyelectrolyte gels with carboxylic groups induces a spontaneous ionization, which in turn produces an electrical potential as large as a few millivolts. On the base of this phenomenon, a tactile sensor capable of lighting a photo diode array according to the amplitude of deformation has been made. This system may offer a soft and wet touch‐sensor due to its soft tissue‐like rheological characteristics.