Deformable conductors for human–machine interface

Wang, Jiangxin; Lin, Meng Fang; Park, Sangbaek; Lee, Pooi See

doi:10.1016/j.mattod.2017.12.006

Cited by 166 publications

(141 citation statements)

References 124 publications

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“…Functional thin films and nanostructures deposited on polymer substrates are of great interest for many applications such as conformable media, biosensors, smart devices adaptable to complex geometries. [1][2][3][4][5][6] Especially, magnetic thin films and nanostructures on polymer substrates can be used for flexible/ stretchable data storage and transfer devices or magnetoelectric sensors. [7][8][9][10][11][12][13][14] Indeed, large arrays of magnetic nanostructures (nanowires, dots, antidots, .…”

mentioning

confidence: 99%

Local Stiffness Effect on Ferromagnetic Response of Nanostructure Arrays in Stretchable Systems

Challab

Zighem

Faurie

et al. 2018

Physica Rapid Research Ltrs

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The control of magnetoelastic effects in magnetic media, their improvement or even their minimization according to the intended applications is a current problem. In this work, the effect of the elastic strain on the magnetic properties of Ni60Fe40 continuous films and nanowires deposited on Kapton® substrates has been investigated. For this purpose, piezoactuation mechanical tests are performed in situ with ferromagnetic resonance measurements. It has been observed that the continuous thin film and the array of nanowires exhibit distinct behaviors in the presence of an elastic strain field. Precisely, the induced magnetoelastic anisotropy is much less pronounced in the case of nanowires. This difference in behavior has been explained/investigated based on finite element simulations. These latter revealed that the average strain transmitted from flexible substrate to magnetic medium is less important in the case of nanowires compared to continuous film. This lack of strain transfer/transmission is related to the relative amount of free surface of the nanostructures combined with a strong mechanical contrast between Ni60Fe40 and Kapton (viz., a deposit relatively much more stiffer than the substrate). This important effect can be exploited in the future by controlling and optimizing geometries of nanostructures.

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mentioning

confidence: 99%

Local Stiffness Effect on Ferromagnetic Response of Nanostructure Arrays in Stretchable Systems

Challab

Zighem

Faurie

et al. 2018

Physica Rapid Research Ltrs

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“…Materials are the basis for constructing CPI system with multilayer stretchable functional units . Researchers have turned to designing materials with compatible mechanical properties via various approaches such as molecular and geometry design, nanomaterial network manipulation, and hydrogel‐based electrodes . Molecular design is a bottom‐up approach, where both elastic and rigid units are rationally designed to dynamically tune the mechanical properties (Figure b) .…”

Section: Materials Development For Cpimentioning

confidence: 99%

Cyber–Physiochemical Interfaces

et al. 2020

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Living things rely on various physical, chemical, and biological interfaces, e.g., somatosensation, olfactory/gustatory perception, and nervous system response. They help organisms to perceive the world, adapt to their surroundings, and maintain internal and external balance. Interfacial information exchanges are complicated but efficient, delicate but precise, and multimodal but unisonous, which has driven researchers to study the science of such interfaces and develop techniques with potential applications in health monitoring, smart robotics, future wearable devices, and cyber physical/human systems. To understand better the issues in these interfaces, a cyber–physiochemical interface (CPI) that is capable of extracting biophysical and biochemical signals, and closely relating them to electronic, communication, and computing technology, to provide the core for aforementioned applications, is proposed. The scientific and technical progress in CPI is summarized, and the challenges to and strategies for building stable interfaces, including materials, sensor development, system integration, and data processing techniques are discussed. It is hoped that this will result in an unprecedented multi‐disciplinary network of scientific collaboration in CPI to explore much uncharted territory for progress, providing technical inspiration—to the development of the next‐generation personal healthcare technology, smart sports‐technology, adaptive prosthetics and augmentation of human capability, etc.

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“…The most frequently used PEDOT derivative is PEDOT doped with poly(styrene‐sulfonate) (PSS)—PEDOT:PSS—an optically transparent polymer with an electrical conductivity that can go as high as 4600 S cm −1 149. Even though, PEDOT:PSS films can be stretched up to ≈60%, the electrical conductivity in such strain regimes is highly compromised, and ultimately can present a great hindrance for the utilization of PEDOT:PSS in flexible electronics 150. Recently, this grand challenge has been tackled by incorporating ionic additives and various electrical conductivity enhancers to generate highly conductive and stretchable PEDOT:PSS films 151.…”

Section: Polymeric Conductors and Semiconductorsmentioning

confidence: 99%

Blending Electronics with the Human Body: A Pathway toward a Cybernetic Future

et al. 2018

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At the crossroads of chemistry, electronics, mechanical engineering, polymer science, biology, tissue engineering, computer science, and materials science, electrical devices are currently being engineered that blend directly within organs and tissues. These sophisticated devices are mediators, recorders, and stimulators of electricity with the capacity to monitor important electrophysiological events, replace disabled body parts, or even stimulate tissues to overcome their current limitations. They are therefore capable of leading humanity forward into the age of cyborgs, a time in which human biology can be hacked at will to yield beings with abilities beyond their natural capabilities. The resulting advances have been made possible by the emergence of conformal and soft electronic materials that can readily integrate with the curvilinear, dynamic, delicate, and flexible human body. This article discusses the recent rapid pace of development in the field of cybernetics with special emphasis on the important role that flexible and electrically active materials have played therein.

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Deformable conductors for human–machine interface

Cited by 166 publications

References 124 publications

Local Stiffness Effect on Ferromagnetic Response of Nanostructure Arrays in Stretchable Systems

Local Stiffness Effect on Ferromagnetic Response of Nanostructure Arrays in Stretchable Systems

Cyber–Physiochemical Interfaces

Blending Electronics with the Human Body: A Pathway toward a Cybernetic Future

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