Characterizing PDMS/MWCNTs and PDMS/GNP composites for biopotential sensing

Kalra, Anubha; Lowe, Andrew; Al‐Jumaily, Ahmed M.

doi:10.1088/2057-1976/aae1cc

Cited by 11 publications

(12 citation statements)

References 30 publications

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“…The Young's modulus of the highly compliant hairy skin of the forearm lies in the range of 1–10 kPa, while the prominent dermis and epidermis of glabrous skin on the palm of the hand are less soft; Young's moduli of the stratum corneum, epidermis, and dermis layers are in the range of 2.5, 1, and 0.1 MPa, respectively. [ 60,61 ]…”

Section: Human Haptics: a Roadmap For Virtual Reality Technologiesmentioning

confidence: 99%

Haptic Perception, Mechanics, and Material Technologies for Virtual Reality

Biswas

Visell

2021

Adv Funct Materials

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Emerging virtual and augmented reality technologies can transform human activities in myriad domains, lending tangible, embodied form to digital data, services, and information. Haptic technologies will play a critical role in enabling human to touch and interact with the contents of these virtual environments. The immense variety of skilled manual tasks that humans perform in real environments are only possible through the coordination of touch sensation, perception, and movement that together comprise the haptic modality. Consequently, many research groups are vigorously investigating haptic technologies for virtual reality. A longstanding research goal in this area has been to create haptic interfaces that allow their users to touch and feel plausibly realistic virtual objects. In this progress report, the perspective on this unresolved research challenge is shared, guided by the observation that no technologies can even approximately match the capabilities of the human sense of touch. Factors that have it challenging to engineer haptic technologies for virtual reality, including the extraordinary spatial and temporal tactile acuity of the skin, and the complex interplay between continuum mechanics, haptic perception, and interaction are identified. The perspective on how these challenges may be overcome through convergent research on haptic perception, mechanics, electronics, and material technologies is presented.

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Section: Human Haptics: a Roadmap For Virtual Reality Technologiesmentioning

confidence: 99%

Haptic Perception, Mechanics, and Material Technologies for Virtual Reality

Biswas

Visell

2021

Adv Funct Materials

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“…Stiffness of the hand tissues also varies. For instance, Young's modulus of stratum corneum, epidermis, and dermis are reported to be in the range of 2.5, 1, and 0.1 MPa, respectively . However, it should be noted that the value of the Young's modulus largely depends on the measurement method used.…”

Section: Human Tactile Sensing: Biology Perception and Engineering mentioning

confidence: 99%

Emerging Material Technologies for Haptics

Biswas

Visell

2019

Adv Materials Technologies

119

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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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“…[14] Skin presents soft and tough mechanical characteristics. [15] The majority of skin tissue is composed of collagen (80% of the dermis dry weight) and elastin fibers. [16] The Young's modulus of the collagen fibers in skin ranges from 150 to 300 kPa [17] and is up to 1 GPa.…”

Section: Introductionmentioning

confidence: 99%

“…[18] As a result of the cooperation between these two mechanically distinctive biopolymers, the skin mechanical behavior reveals a nonlinear stress-strain relationship with low modulus, self-stiffness, high toughness, as well as tear-resistance. [15] Additionally, the skin is an anisotropic, viscoelastic, and relatively incompressible tissue. Skin tissue's mechanical response is described as three-phase.…”

Section: Introductionmentioning

confidence: 99%

Engineering Bioactive Scaffolds for Skin Regeneration

Hosseini

Shafiee

2021

Small

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The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/smll.202101384.The mechanical properties of the skin are important for understanding the pathophysiology of skin diseases and engineering Large skin wounds pose a major clinical challenge. Scarcity of donor site and postsurgical scarring contribute to the incomplete or partial loss of function and aesthetic concerns in skin wound patients. Currently, a wide variety of skin grafts are being applied in clinical settings. Scaffolds are used to overcome the issues related to the misaligned architecture of the repaired skin tissues. The current review summarizes the contribution of biomaterials to wound healing and skin regeneration and addresses the existing limitations in skin grafting. Then, the clinically approved biologic and synthetic skin substitutes are extensively reviewed. Next, the techniques for modification of skin grafts aiming for enhanced tissue regeneration are outlined, and a summary of different growth factor delivery systems using biomaterials is presented. Considering the significant progress in biomaterial science and manufacturing technologies, the idea of biomaterial-based skin grafts with the ability for scarless wound healing and reconstructing full skin organ is more achievable than ever.

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Characterizing PDMS/MWCNTs and PDMS/GNP composites for biopotential sensing

Cited by 11 publications

References 30 publications

Haptic Perception, Mechanics, and Material Technologies for Virtual Reality

Haptic Perception, Mechanics, and Material Technologies for Virtual Reality

Emerging Material Technologies for Haptics

Engineering Bioactive Scaffolds for Skin Regeneration

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