An Enhanced Soft Vibrotactile Actuator Based on ePVC Gel with Silicon Dioxide Nanoparticles

Park, Won-Hyeong; Shin, Eun Ju; Yun, Sungryul; Kim, Sang-Youn

doi:10.1109/toh.2018.2808176

Cited by 27 publications

(26 citation statements)

References 23 publications

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“…Various dielectric polymers have been developed based on silicone, polyurethane, acrylic, or other materials. These materials have been used to demonstrate numerous haptic feedback devices …”

Section: Physical Principles Of Actuation Via Emerging Materialsmentioning

confidence: 99%

“…However, this property can be modulated over a wide range of values through the addition of conducting particles. For example, Park et al used plasticized poly(vinyl chloride) (PVC) gel to demonstrate vibrotactile actuators. They mixed SiO 2 nanoparticles with the PVC gel (ePVC) to increase the dielectric property of the ePVC.…”

Section: Tactile Displays Based On Emerging Materialsmentioning

confidence: 99%

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Emerging Material Technologies for Haptics

Biswas

Visell

2019

Adv Materials Technologies

118

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The sense of touch is involved in nearly all human activities, but information technologies for displaying tactile sensory information to the skin are rudimentary when compared to state‐of‐the‐art video and audio displays, or to tactile perceptual capabilities. Realizing tactile displays with good perceptual fidelity will require major advances in engineering, design, and fabrication. Research over several decades has highlighted the difficulties of meeting the required performance benchmarks using conventional devices, processes, and techniques. This has highlighted the important role that will be played by new material technologies that can bridge the electronic and mechanical domains. This must occur at the smallest scales, because of the great perceptual spatial and temporal acuity of the sense of touch. The requirements involved also furnish valuable performance benchmarks against which many emerging material technologies are being evaluated. This article highlights recent research and possibilities enabled through new material technologies, ranging from organic electronic materials, to carbon nanomaterials, and a variety of composites. Emerging material technologies are surveyed for the sense of touch, including sensory considerations and requirements, materials, actuation principles, and design and fabrication methods. A conclusion reflects on the main open challenges and future prospects for research in this area.

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Section: Physical Principles Of Actuation Via Emerging Materialsmentioning

confidence: 99%

Section: Tactile Displays Based On Emerging Materialsmentioning

confidence: 99%

Emerging Material Technologies for Haptics

Biswas

Visell

2019

Adv Materials Technologies

118

View full text Add to dashboard Cite

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“…To provide functional neuroimaging insights into vibrotactile perception studies, we developed an MEG-compatible vibrotactile stimulation device based on a polyvinyl chloride (PVC) gel actuator. The PVC gel can be easily deformed by applying an external electric field to create a vibrational force larger than the perception threshold for humans over a wide range of frequencies [54], [55]. We designed the structure of the PVC gel actuator to minimize magnetic field noise during neuromagnetic recordings.…”

Section: Introductionmentioning

confidence: 99%

Development of a Polymer-Based MEG-Compatible Vibrotactile Stimulator for Studying Neuromagnetic Somatosensory Responses

et al. 2020

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Vibrotactile technology has been gaining increasing interest for effective human-computer communication in various applications. In addition to psychophysical approaches commonly used to study tactile vibrations, neurocognitive responses to vibrotactile stimuli can provide new insights into mechanisms underlying human vibrotactile perception. In this study, we developed a magnetoencephalography (MEG)compatible vibrotactile stimulation device based on a polyvinyl chloride (PVC) gel actuator to study neuromagnetic somatosensory responses. A symmetric, double-layered PVC gel structure was applied to minimize the magnetic noise from the actuator. The device was used to generate sinusoidal stimuli at high frequencies to activate mechanoreceptors responsible for high-frequency vibrations greater than 50 Hz, and this device showed very little variability in stimulation onset time from the displacement measurements. We successfully observed vibrotactile-evoked magnetic fields by analyzing whole-head MEG data recorded during the high-frequency vibrotactile stimulation of the fingertips. Prominent peak responses were observed at approximately 56 ms (M50) in the contralateral hemisphere and at approximately 100 ms (M100) in both hemispheres. We identified the activation of contralateral primary somatosensory areas as a source of the vibrotactile M50 response. These results demonstrate the feasibility of using our new device to study vibrotactile perception with neuromagnetic imaging methods.

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“…Hybrid composite nanostructure materials made of SDNs are ideally been explored by imbedding in diverse electroactive polymers to construct nanocomposite dielectric films for multiple electronic memory circuit components/devices [8][9][10]. The tunable optical, dielectric and electronic properties of SDNs in dielectric matrix predominantly offer a wide range of applications straddling from electronics and optics, to sensors and actuators [11][12][13][14][15][16]. Recently, significant research interest has been focused on surface modified SDNs in designing plasmonic substrates for integrated photonic devices, optical amplifiers and nano/microelectronics devices [17,18].…”

Section: Introductionmentioning

confidence: 99%

“…We used acetyltributylcitrate (ATBC), as an ecofriendly green plasticizer to fabricate the ePVC gel. The proposed actuator rendered a variety of haptic sensations in a wide frequency range [16]. Since, PANI coated hybrid inorganic nanoscale materials shows excellent sensor/actuator performances, we conducted research to dope conducting PANI on SDNs to enhance the performances of vibrotactile actuators by fine tuning of its dielectric properties and mechanical stability.…”

Section: Introductionmentioning

confidence: 99%

Flexible Vibrotactile Actuator Based on Soft PVC Gel Embedded Polyaniline/Silicon Dioxide Nanoparticles

2020

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Nanocomposite hybrid materials made of inorganic nanoparticles and organic polymers are fascinating to design high performance polymeric materials, customized in electronics and transportation sectors. In this concern, a soft and flexible PVC gel embedded with silicon dioxide nanoparticles (SDNs) coated with polyaniline (PANI) has been proposed as a dielectric interface in vibrotactile actuator. Soft PVC gels were achieved by plasticization using acetyltributylcitrate (ATBC), an ecofriendly green plasticizer. The optimization of plasticizer content to PVC was precisely controlled and the ratio was kept constant throughout the experiment. PANI was coated on SDN by using chemical oxidative polymerization technique in order to tune the dielectric/electronic properties and minimize the leakage current. Various quantities of PANI-SDNs were loaded to PVC; the behavior of nanocomposite PVC gels as soft vibrotactile actuators was investigated. All the composite materials were comprehensively investigated using different physico-chemical techniques and haptic performance of the optimized PANI-SDN-0.2 nanocomposite PVC gel was assessed. INDEX TERMS Actuators, nanocomposites, polyaniline, silicon dioxide, vibrotactile haptic devices.

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An Enhanced Soft Vibrotactile Actuator Based on ePVC Gel with Silicon Dioxide Nanoparticles

Cited by 27 publications

References 23 publications

Emerging Material Technologies for Haptics

Emerging Material Technologies for Haptics

Development of a Polymer-Based MEG-Compatible Vibrotactile Stimulator for Studying Neuromagnetic Somatosensory Responses

Flexible Vibrotactile Actuator Based on Soft PVC Gel Embedded Polyaniline/Silicon Dioxide Nanoparticles

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