Highly stretchable, self-healing, and adhesive polymeric eutectogel enabled by hydrogen-bond networks for wearable strain sensor

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 449, P. 137878 - 137878

Published: July 2, 2022

Language: Английский

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Recent Advances and Developments in Injectable Conductive Polymer Gels for Bioelectronics

ACS Applied Bio Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Feb. 16, 2024

Soft matter bioelectronics represents an emerging and interdisciplinary research frontier aiming to harness the synergy between biology electronics for advanced diagnostic healthcare applications. In this context, a whole family of soft gels have been recently developed with self-healing ability tunable biological mimetic features act as tissue-like space bridging interface electronic device dynamic fluids body tissues. This review article provides comprehensive overview electroactive polymer gels, formed by noncovalent intermolecular interactions covalent bonds, injectable covering their synthesis, characterization, First, hydrogels crafted from conducting polymers (poly(3,4-ethylene-dioxythiophene) (PEDOT), polyaniline (PANi), polypyrrole (PPy))-based networks which are connected through physical (e.g., hydrogen bonding, π–π stacking, hydrophobic interactions) or bonds imine Schiff-base, borate ester bonds) addressed. Injectable involving hybrid conductive nanomaterials (i.e., graphene oxide, carbon nanotubes, metallic nanoparticles, etc.) also discussed. Besides, it delves into recent advancements in ionic liquid-integrated (iongels) deep eutectic solvent-integrated (eutectogels), present promising avenues future research. Finally, current applications prospects cutting-edge bioelectronic ranging tissue engineering biosensing outlined.

Language: Английский

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Stretchable ionic conductive gels for wearable human-activity detection

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 489, P. 151231 - 151231

Published: April 17, 2024

Language: Английский

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PNIPAM/PEDOT:PSS Hydrogels for Multifunctional Organic Electrochemical Transistors

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(40)

Published: April 26, 2024

Abstract The development of multifunctional organic materials represents a vibrant area research, with applications spanning from biosensing to drug delivery. This study shows the bioelectronic device suitable for prolonged temperature monitoring and delivery applications. relies on conducting thermo‐responsive hydrogel made poly(3,4‐ethylenedioxythiophene) doped poly(styrene sulfonate) (PEDOT:PSS) poly(N‐isopropylacrylamide) (PNIPAM). is 4D printable by Digital Light Processing (DLP) method exhibits optimal biocompatibility. features low critical solution (LCST) ≈35 °C, above which its resistance changes dramatically due shrinkage it undergoes temperature. integration PNIPAM/PEDOT into an electrochemical transistor (OECT) as gate electrode allows generate miniaturized reversible response variations between 25 45 along high sensitivity 0.05 °C −1 . Furthermore, demonstrates utility in delivery, achieving Insulin‐FITC release rate 82 ± 4% at 37 mimicking human body conditions. hydrogel's functionality store insulin does not compromise thermo‐responsivity overall performance OECT. OECT opens new avenues customizable personalized sensing drug‐delivery systems.

Language: Английский

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Bioadhesive eutectogels supporting drug nanocrystals for long-acting delivery to mucosal tissues

Materials Today Bio, Journal Year: 2022, Volume and Issue: 17, P. 100471 - 100471

Published: Oct. 25, 2022

Language: Английский

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Mixed Conductive, Injectable, and Fluorescent Supramolecular Eutectogel Composites

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(26)

Published: May 2, 2023

Eutectogels are an emerging family of soft ionic materials alternative to liquid gels and organogels, offering fresh perspectives for designing functional dynamic platforms in water-free environments. Herein, the first example mixed electronic conducting supramolecular eutectogel composites is reported. A fluorescent glutamic acid-derived low-molecular-weight gelator (LMWG) was found self-assemble into nanofibrillar networks deep eutectic solvents (DES)/poly(3,4-ethylenedioxythiophene) (PEDOT): chondroitin sulfate dispersions. These displayed excellent injectability self-healing properties, high conductivity (up 10-2 S cm-1 ), good biocompatibility, fluorescence imaging ability. This set features turns eutectogels promising adaptive bioimaging electrostimulation applications.

Language: Английский

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An Eutectic Gel Based on Polymerizable Deep Eutectic Solvent with Self‐Adhesive, Self‐adaptive Cold and High Temperature Environments

Advanced Materials Technologies, Journal Year: 2023, Volume and Issue: 8(7)

Published: Jan. 25, 2023

Abstract Ionic conductors have a wide range of development prospects in the field flexible wearable electronics. The polymerizable deep eutectic solvent is more economical, resistant to extreme temperature, and less toxic than traditional hydrogels ionic liquids. In this paper, supramolecular gel prepared by introducing glycol/choline chloride into acrylamide/choline as “hydrogen bond cross‐linking density regulator”. Deep solvents give gels ability resist low (‐25 °C) high (60 temperatures. By 2‐acrylamido‐2‐methyl‐1‐propanesulfonic acid gel, adhesion on copper sheet can reach 90 kPa shows good reusability. Due complex hydrogen interaction it has mechanical properties (strain up 2300%, stress 0.21 MPa). addition, conductivity 0.22 ms cm −1 due presence choline chloride. since polymerization triggered quickly under UV light, allowed us print any shape surface. Such with self‐adhesion, intrinsic conductivity, excellent temperature resistance may applications motion sensors.

Language: Английский

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Direct ink writing of PEDOT eutectogels as substrate-free dry electrodes for electromyography

Materials Horizons, Journal Year: 2023, Volume and Issue: 10(7), P. 2516 - 2524

Published: Jan. 1, 2023

Deep Eutectic Solvents (DES) are a new class of ionic conductive compounds attracting significant attention as greener alternatives to costly liquids. Herein, we developed novel mixed ionic-electronic conducting materials by simple mixing poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT:PSS) and various DES additives. The addition induces the supramolecular assembly gelification PEDOT:PSS forming eutectogels triggered extensive hydrogen bonding charge stabilization. feature boosts conductivity up 368 S cm-1, unveiling great potential flexible bioelectronics. All PEDOT:PSS/DES gels showed shear-thinning behavior viscosity values ranging from 100 1000 Pa s. show good injectability with almost instantaneous elastic recovery, making them ideal for direct ink writing (DIW). As proof that, (choline chloride:lactic acid) was 3D printed in different patterns, annealed at high temperature, assembled into adhesive electrodes. This way tattoos-like electrodes, denoted Eutecta2 were fabricated placed vivo on forearm thumb human volunteers electromyography measurements. hexagonal patterns excellent conformability, their signal-to-noise ratio (SNR) higher than Ag/AgCl commercial electrodes motion Furthermore, measured after 14 days similar SNR, demonstrating long-term stability reusability. all, our findings revealed that could be used inexpensive safe additives self-assembly inks

Language: Английский

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Zwitterionic Eutectogel-Based Wearable Strain Sensor with Superior Stretchability, Self-Healing, Self-Adhesion, and Wide Temperature Tolerance

ACS Applied Materials & Interfaces, Journal Year: 2023, Volume and Issue: 15(28), P. 34055 - 34063

Published: July 6, 2023

Ionic conductive eutectogels have great application prospects in wearable strain sensors owing to their temperature tolerance, simplicity, and low cost. Eutectogels prepared by cross-linking polymers good tensile properties, strong self-healing capacities, excellent surface-adaptive adhesion. Herein, we emphasize for the first time potential of zwitterionic deep eutectic solvents (DESs), which betaine is a hydrogen bond acceptor. Polymeric were directly polymerizing acrylamide DESs. The obtained owned ionic conductivity (0.23 mS cm-1), superior stretchability (approximately 1400% elongation), (82.01%), self-adhesion, wide tolerance. Accordingly, eutectogel was successfully applied self-adhesive sensors, can adhere skins monitor body motions with high sensitivity cyclic stability over range (-80 80 °C). Moreover, this sensor an appealing sensing function on bidirectional monitoring. findings work pave way design soft materials versatility environmental adaptation.

Language: Английский

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3D printed mechanical robust cellulose derived liquid-free ionic conductive elastomer for multifunctional electronic devices

Carbohydrate Polymers, Journal Year: 2023, Volume and Issue: 324, P. 121496 - 121496

Published: Oct. 14, 2023

Language: Английский

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