Abstract

Purpose of the study: Haptic technology, which can qualitatively expand virtual or augmented reality experiences beyond the sensation of the ear and eye, is realized by electrical and mechanical stimulation of afferent nerves or mechanoreceptors. In this review, researchers highlight the biological basis for sensation and suggest the advanced direction in the electric tactile-based haptic system using low impedance materials.
 Methodology: Conductive polymer called “Poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS)” was examined for chemical properties and biocompatibility. 
 Main Findings: Study of PEDOT:PSS shows the superior property in terms of deformability and electrical performance for developing the low-impedance, skin-like haptic interfaces.
 Implications: To provide wear- comfort, skin-like technologies that impose a negligible physical burden on the user should be used. The mainstream of haptic technology involves the development of a system that could provide myriads of sensations to the skin through not only to the fingertips but also to some or all regions of the body.
 Novelty: Researchers also provide the strategy to impart skin-like property as well as low impedance using hydrogel polymer which is desirable in wearable haptic systems.

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