Electrically Conductive Collagen‐PEDOT:PSS Hydrogel Prevents Post‐Infarct Cardiac Arrhythmia and Supports hiPSC‐Cardiomyocyte Function

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(28)

Published: April 23, 2024

Abstract Myocardial infarction (MI) causes cell death, disrupts electrical activity, triggers arrhythmia, and results in heart failure, whereby 50–60% of MI‐associated deaths manifest as sudden cardiac (SCD). The most effective therapy for SCD prevention is implantable cardioverter defibrillators (ICDs). However, ICDs contribute to adverse remodeling disease progression do not prevent arrhythmia. This work develops an injectable collagen‐PEDOT:PSS (poly(3,4‐ethylenedioxythiophene) polystyrene sulfonate) hydrogel that protects infarcted hearts against ventricular tachycardia (VT) can be combined with human induced pluripotent stem (hiPSC)‐cardiomyocytes promote partial remuscularization. PEDOT:PSS improves collagen gel formation, micromorphology, conductivity. hiPSC‐cardiomyocytes hydrogels exhibit near‐adult sarcomeric length, improved contractility, enhanced calcium handling, conduction velocity. RNA‐sequencing data indicate maturation cell‐matrix interactions. Injecting mouse decreases VT the levels healthy hearts. Collectively, offer a versatile platform treating injuries.

Language: Английский

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Stretchable, adhesive and self-healing conductive hydrogels based on PEDOT:PSS-stabilized liquid metals for human motion detection

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 494, P. 152971 - 152971

Published: June 11, 2024

Language: Английский

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PEDOT:Nafion for Highly Efficient Supercapacitors

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

Published: April 23, 2024

Supercapacitors offer notable properties as energy storage devices, providing high power density and fast charging discharging while maintaining a long cycling lifetime. Although poly(3,4-ethylenedioxythiophene) doped with poly(4-styrenesulfonate) (PEDOT/PSS) has become gold standard among organic electronics materials, researchers are still investigating ways to further improve its capacitive characteristics. In this work, we introduced Nafion an alternative polymeric counterion PSS form highly PEDOT/Nafion; advantageous supercapacitive were improved by treatment either dimethyl sulfoxide or ethylene glycol. Accordingly, electrochemical characterization of PEDOT/Nafion films revealed their areal capacitance (22 mF cm–2 at 10 mV/s) low charge transfer resistance (∼380 Ω), together excellent volumetric (74 F cm–3), Coulombic efficiency (99%), 23.1 ± 1.5 mWh cm–3 0.5 W cm–3, resulting from more effective ion diffusion inside the conductive film, confirmed results spectroscopic studies. A proof-of-concept symmetric supercapacitor based on was characterized specific approximately 15.7 g–1 impressive long-term stability (Coulombic ∼99% ∼98.7% after 1000 charging/discharging cycles), overperforming device PEDOT/PSS.

Language: Английский

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PEDOT-molecular bridging foam-hydrogel based wearable triboelectric nanogenerator for energy harvesting and sensing

Nano Energy, Journal Year: 2024, Volume and Issue: 134, P. 110572 - 110572

Published: Dec. 11, 2024

Language: Английский

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The Rising of Flexible Organic Electrochemical Transistors in Sensors and Intelligent Circuits

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 20, 2025

Flexible electronic devices in biomedicine, environmental monitoring, and brain-like computing have garnered significant attention. Among these, organic electrochemical transistors (OECTs) been spotlighted flexible sensors neuromorphic circuits for their low power consumption, high signal amplification, excellent biocompatibility, chemical stability, stretchability, flexibility. However, OECTs will also face some challenges on the way to commercialized applications, including need improved long-term enhanced performance of N-type materials, integration with existing technologies, cost-effective manufacturing processes. This review presents device physics detail, evaluation various properties introduction different configurations aforementioned OECTs. Subsequently, components this roles are explained depth, main ways design fabricate summarized. Following this, we summarize analyze principles applications electrophysiological sensing, biosensing, sensor arrays. In addition, concepts OECT-based digital presented. Finally, paper summarizes opportunities electronics.

Language: Английский

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Advances and Outlooks for Carbon Nanotube‐Based Thermoelectric Materials and Devices

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 16, 2025

Abstract The unique structure of carbon nanotubes (CNTs) endows them with exceptional electrical and mechanical properties, along a high surface area, making highly beneficial for use as flexible, high‐performing thermoelectric materials. As result, the application CNTs in field has become increasingly widespread. Considering rapid advancements this field, review offers timely overview most recent progress on CNT‐based materials devices over past five years. This begins by introducing fundamental concepts mechanisms Then new strategies are explored to enhance their performance, focusing doping composites, while emphasizing importance CNT stability key research area. Additionally, latest design expanded scenarios flexible wearable CNTs‐based summarized. Finally, current challenges addressed future directions development discussed.

Language: Английский

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Silk Fibroin-Based Antifreezing and Highly Conductive Hydrogel for Sensing at Ultralow Temperature

ACS Sensors, Journal Year: 2025, Volume and Issue: unknown

Published: March 3, 2025

Hydrogels with a combination of mechanical flexibility and good electrical conductivity hold significant potential for various applications. Nonetheless, it is inevitable that water-based conductive hydrogels lose their elasticity at extremely low temperatures, severely limiting utilization in ultralow temperature environments, such as those Arctic/Antarctic exploration. In this study, we developed hydrogel based on double network cross-linking strategy incorporated silk fibroin (SF) poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) within lithium bromide (LiBr) solution, which shows exceptional antifreezing (-108 °C freezing point) excellent (16.33 S m-1). The obtained SF/PEDOT:PSS/LiBr (SPL) stable reliable response to wide range deformations (compression: 0.5-60%; tensile: 1.0-100%), short response/recovery time approximately 70 ms. More importantly, the displays well-maintained conductivity, robust properties, dependable sensing capabilities, even under temperatures -80 °C. For proof concept, demonstrated applications SPL detecting body movements, monitoring climate conditions, ensuring information security environments. results indicate promising candidate fabricating flexible sensors, particularly well-suited use challenging scenarios.

Language: Английский

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Stretchable organic electrochemical transistors for sustained high-fidelity electrophysiology and deep learning-assisted sleep monitoring

Matter, Journal Year: 2025, Volume and Issue: unknown, P. 102086 - 102086

Published: March 1, 2025

Language: Английский

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A direct written strain-insensitive temperature sensor based on a multi-polygonal structure for human temperature monitoring

Nano Energy, Journal Year: 2024, Volume and Issue: 131, P. 110199 - 110199

Published: Sept. 4, 2024

Language: Английский

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Multifunctional Highly Conductive Cellulose Nanopaper with Ordered PEDOT:PSS Alignment Enabled by External Surface Area-Promoted Phase Separation

Composites Part B Engineering, Journal Year: 2024, Volume and Issue: unknown, P. 111919 - 111919

Published: Oct. 1, 2024

Language: Английский

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