Soft Electronics Based on Stretchable and Conductive Nanocomposites for Biomedical Applications

Zambrano, Byron Llerena; Renz, Aline F.; Ruff, Tobias; Lienemann, Samuel; Tybrandt, Klas; Vörös, János; Lee, Jaehong

doi:10.1002/adhm.202001397

Cited by 46 publications

(41 citation statements)

References 173 publications

(340 reference statements)

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“…For example, the electrophysiological activity of tissue can be modulated by electrical stimulations. [ 220,221 ] Electrical stimulations, such as deep brain stimulation, cardiac resynchronization therapy, and spinal cord stimulation, have been used as medical treatments. However, mechanical mismatch between conventional rigid electrodes and tissue has led to several issues.…”

Section: Application Of Functionalized Elastomers In Soft Devicesmentioning

confidence: 99%

Functionalized Elastomers for Intrinsically Soft and Biointegrated Electronics

Shim

Sunwoo

Kim

et al. 2021

Adv Healthcare Materials

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Elastomers are suitable materials for constructing a conformal interface with soft and curvilinear biological tissue due to their intrinsically deformable mechanical properties. Intrinsically soft electronic devices whose mechanical properties are comparable to human tissue can be fabricated using suitably functionalized elastomers. This article reviews recent progress in functionalized elastomers and their application to intrinsically soft and biointegrated electronics. Elastomers can be functionalized by adding appropriate fillers, either nanoscale materials or polymers. Conducting or semiconducting elastomers synthesized and/or processed with these materials can be applied to the fabrication of soft biointegrated electronic devices. For facile integration of soft electronics with the human body, additional functionalization strategies can be employed to improve adhesive or autonomous healing properties. Recently, device components for intrinsically soft and biointegrated electronics, including sensors, stimulators, power supply devices, displays, and transistors, have been developed. Herein, representative examples of these fully elastomeric device components are discussed. Finally, the remaining challenges and future outlooks for the field are presented.

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Section: Application Of Functionalized Elastomers In Soft Devicesmentioning

confidence: 99%

Functionalized Elastomers for Intrinsically Soft and Biointegrated Electronics

Shim

Sunwoo

Kim

et al. 2021

Adv Healthcare Materials

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“…Tunable electrical conductivity and mechanical properties, high stability in air and aqueous media, low cost, lightweight, flexibility, and, in some cases, biocompatibility make these materials attractive for numerous applications, such as energy harvesting devices, wearable and stretchable electronics, energy storage, electronic skin, and implantable devices ( Figure ). [ 39–43 ]…”

Section: Introductionmentioning

confidence: 99%

Recent Progress on Self‐Healable Conducting Polymers

Zhou

Sarkar

et al. 2022

Advanced Materials

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Materials able to regenerate after damage have been the object of investigation since the ancient times. For instance, self‐healing concretes, able to resist earthquakes, aging, weather, and seawater have been known since the times of ancient Rome and are still the object of research. During the last decade, there has been an increasing interest in self‐healing electronic materials, for applications in electronic skin (E‐skin) for health monitoring, wearable and stretchable sensors, actuators, transistors, energy harvesting, and storage devices. Self‐healing materials based on conducting polymers are particularly attractive due to their tunable high conductivity, good stability, intrinsic flexibility, excellent processability and biocompatibility. Here recent developments are reviewed in the field of self‐healing electronic materials based on conducting polymers, such as poly 3,4‐ethylenedioxythiophene (PEDOT), polypyrrole (PPy), and polyaniline (PANI). The different types of healing, the strategies adopted to optimize electrical and mechanical properties, and the various possible healing mechanisms are introduced. Finally, the main challenges and perspectives in the field are discussed.

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“…This is typically achieved by creating a conductive network in an elastic polymer matrix, exploiting potential synergistic effects between the polymer matrix and conductive network to achieve highly tunable electrical and mechanical properties. By selecting different polymers and designing conductive networks into different topologies and microstructures, it is possible to tailor the conductive properties of the composite materials to suit different applications including wearable sensors, stretchable conductors and electrodes, and flexible energy-harvesting and -storage devices. − The most commonly studied elastic polymer matrix include silicon rubbers (polydimethylsiloxane (PDMS) and Ecoflex), styrene-ethylene-butylene-styrene (SEBS), and thermoplastic polyurethane (TPU), while conductive nanofillers include carbon nanomaterials (graphene, carbon nanotubes, carbon nanofibers, and carbon blacks), metal nanowires (silver nanowires, copper nanowires, and gold nanowires), liquid metals, and conductive polymers and their derivatives.…”

Section: Introductionmentioning

confidence: 99%

Conductive Polymer Nanocomposites for Stretchable Electronics: Material Selection, Design, and Applications

Peng

et al. 2021

ACS Appl. Mater. Interfaces

111

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Stretchable electronics that can elongate elastically as well as flex are crucial to a wide range of emerging technologies, such as wearable medical devices, electronic skin, and soft robotics. Critical to stretchable electronics is their ability to withstand large mechanical strain without failure while retaining their electrical conduction properties, a feat significantly beyond traditional metals and silicon-based semiconductors. Herein, we present a review of the recent advances in stretchable conductive polymer nanocomposites with exceptional stretchability and electrical properties, which have the potential to transform a wide range of applications, including wearable sensors for biophysical signals, stretchable conductors and electrodes, and deformable energy-harvesting and -storage devices. Critical to achieving these stretching properties are the judicious selection and hybridization of nanomaterials, novel microstructure designs, and facile fabrication processes, which are the focus of this Review. To highlight the potentials of conductive nanocomposites, a summary of some recent important applications is presented, including COVID-19 remote monitoring, connected health, electronic skin for augmented intelligence, and soft robotics. Finally, perspectives on future challenges and new research opportunities are also presented and discussed.

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Soft Electronics Based on Stretchable and Conductive Nanocomposites for Biomedical Applications

Cited by 46 publications

References 173 publications

Functionalized Elastomers for Intrinsically Soft and Biointegrated Electronics

Functionalized Elastomers for Intrinsically Soft and Biointegrated Electronics

Recent Progress on Self‐Healable Conducting Polymers

Conductive Polymer Nanocomposites for Stretchable Electronics: Material Selection, Design, and Applications

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