Self-healing, stretchable, and highly adhesive hydrogels for epidermal patch electrodes

Zhou, Xin; Rajeev, Ashna; Subramanian, Arunprabaharan; Li, Yang; Rossetti, Nicolò; Natale, Giovanniantonio; Lodygensky, Gregory A.; Cicoira, Fabio

doi:10.1016/j.actbio.2021.07.069

Cited by 69 publications

(67 citation statements)

References 35 publications

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“…As patch electrodes, these hydrogels showed comparable quality of electrocardiogram (ECG) and electromyography (EMG) recording with respect to commercial Ag/AgCl gel electrodes. [ 175 ]…”

Section: Self‐healing Electronic Materials Based On Conducting Polyme...mentioning

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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“…As patch electrodes, these hydrogels showed comparable quality of electrocardiogram (ECG) and electromyography (EMG) recording with respect to commercial Ag/AgCl gel electrodes. [ 175 ]…”

Section: Self‐healing Electronic Materials Based On Conducting Polyme...mentioning

confidence: 99%

Recent Progress on Self‐Healable Conducting Polymers

Zhou

Sarkar

et al. 2022

Advanced Materials

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“…For hydrogel electrodes, different electrically conductive fillers, such as conducting polymers, carbonbased materials, or metals are added into the hydrogel matrix or surface to enhance the conductivity, thus lowering the impedance. [111][112][113] Majidi et al incorporated micrometer-sized silver flakes into polyacrylamide-alginate (PAAm-alginate) hydrogel matrix, obtaining a high electrical conductivity (4350 S cm À1 ) after going through a partial dehydration process, due to the formation of silver flakes percolating networks. 114 Li et al developed a highly stretchable, selfhealing, and degradable multifunctional epidermal sensor assembled from the conductive MXene/amorphous calcium carbonate (ACC)/PAA hydrogels (Fig.…”

Section: Figure Of Merit In Hydrogel Eeg Electrodesmentioning

confidence: 99%

Design of hydrogel-based wearable EEG electrodes for medical applications

Hsieh

Wang

et al. 2022

J. Mater. Chem. B

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“…Other interesting topics related to conducting polymers not covered in this section can be found in recently published reports and reviews. 167–173…”

Section: Advancement From Non-autonomous Healing Toward Autonomous Se...mentioning

confidence: 99%

“…Other interesting topics related to conducting polymers not covered in this section can be found in recently published reports and reviews. [167][168][169][170][171][172][173] To the best of our knowledge, Bao's group was the first to successfully fabricate magnificent intrinsically stretchable and self-healable semiconducting polymers in TFT devices by utilizing hydrogen-bonding moieties, 23 wherein the nano-size cracks formed by external mechanical stress were found to heal with the assistance of solvent vapour and thermal annealing. The design concept applied was through a backbone engineering approach by synthesizing and incorporating a non-covalent crosslinking moiety of 2,3-pyridine dicarboxamide (PDCA) as a conjugation-break spacer in DPP-based conjugated polymers, namely P(DPP-TVT-X).…”

Section: Advancement From Non-autonomous Healing Toward Autonomous Se...mentioning

confidence: 99%