3d Printed Pedot:Pss-Based Conducting and Patternable Eutectogel Electrodes for Machine Learning on Textiles DOI
Ruben Ruiz‐Mateos Serrano, Ana Aguzin,

Eleni Mitoudi‐Vagourdi

и другие.

Опубликована: Янв. 1, 2024

The proliferation of medical wearables necessitates the development novel electrodes for cutaneous electrophysiology. In this work, poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) is combined with a deep eutectic solvent (DES) and polyethylene glycol acrylate (PEGDA) to develop printable biocompatible long-term electrophysiology recordings. impact printing parameters on conducting properties, morphological characteristics, mechanical stability biocompatibility material were investigated. optimised eutectogel formulations fabricated in four different patterns —flat, pyramidal, striped wavy— explore influence electrode geometry skin conformability contact. These employed impedance forearm EMG measurements. Furthermore, arrays twenty embedded into textile used generate body surface potential maps (BSPMs) forearm, where finger movements recorded analysed. Finally, BSPMs three letters (B, I, O) sign-language train logistic regressor classifier able reliably identify each letter. This fabrication approach offers new opportunities electrophysiological recordings, online translation brain-machine interfaces.

Язык: Английский

3D printing of stimuli-responsive hydrogel materials: Literature review and emerging applications DOI Creative Commons
Zia Ullah Arif, Muhammad Yasir Khalid, Ali Tariq

и другие.

Giant, Год журнала: 2023, Номер 17, С. 100209 - 100209

Опубликована: Ноя. 15, 2023

Additive manufacturing (AM) aka three-dimensional (3D) printing has been a well-established and unparalleled technology, which is expanding the boundaries of materials science exhibiting an enormous potential to fabricate intricate geometries for healthcare, electronics, construction sectors. In contemporary era, combination AM technology stimuli-responsive hydrogels (SRHs) helps create dynamic functional structures with extreme accuracy, are capable changing their shape, functional, or mechanical properties in response environmental cues such as humidity, heat, light, pH, magnetic field, electric etc. 3D SRHs permits creation on-demand dynamically controllable shapes excellent control over various self-repair, self-assembly, multi-functionality, These accelerate researchers think unthinkable applications. Additively manufactured objects have shown applications like tissue engineering, drug delivery, soft robots, sensors, other biomedical devices. The current review provides recent progress SRHs, more focus on techniques, stimuli mechanisms, shape morphing behaviors, Finally, trends future roadmap additively smart different also presented, will be helpful research. This holds great promise providing fundamental knowledge about diverse

Язык: Английский

Процитировано

73

Conducting polymer hydrogels based on supramolecular strategies for wearable sensors DOI Creative Commons
Zhiyuan Sun, Qingdong Ou, Chao Dong

и другие.

Exploration, Год журнала: 2024, Номер 4(5)

Опубликована: Март 14, 2024

Abstract Conductive polymer hydrogels (CPHs) are gaining considerable attention in developing wearable electronics due to their unique combination of high conductivity and softness. However, the absence interactions, incompatibility between hydrophobic conductive polymers (CPs) hydrophilic networks gives rise inadequate bonding CPs hydrogel matrices, thereby significantly impairing mechanical electrical properties CPHs constraining utility electronic sensors. Therefore, endow with good performance, it is necessary ensure a stable robust network CPs. Encouragingly, recent research has demonstrated that incorporating supramolecular interactions into enhances interaction, improving overall CPH performance. comprehensive review focusing on (SCPH) for sensing applications currently lacking. This provides summary typical strategies employed development high‐performance elucidates SCPHs closely associated Moreover, discusses fabrication methods classification SCPH sensors, while also exploring latest application scenarios Finally, challenges sensors offers suggestions future advancements.

Язык: Английский

Процитировано

24

PNIPAM/PEDOT:PSS Hydrogels for Multifunctional Organic Electrochemical Transistors DOI Creative Commons
Naroa Lopez‐Larrea, Shofarul Wustoni, Mario Iván Peñas

и другие.

Advanced Functional Materials, Год журнала: 2024, Номер 34(40)

Опубликована: Апрель 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.

Язык: Английский

Процитировано

20

Light‐Based 3D Multi‐Material Printing of Micro‐Structured Bio‐Shaped, Conducting and Dry Adhesive Electrodes for Bioelectronics DOI Creative Commons
Antonio Dominguez‐Alfaro,

Eleni Mitoudi‐Vagourdi,

Ivan B. Dimov

и другие.

Advanced Science, Год журнала: 2024, Номер 11(27)

Опубликована: Янв. 22, 2024

Abstract In this work, a new method of multi‐material printing in one‐go using commercially available 3D printer is presented. The approach simple and versatile, allowing the manufacturing layered or same layer. To best knowledge, it first time that printed Poly(3,4‐ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) micro‐patterns combining different materials are reported, overcoming mechanical stability issues. Moreover, conducting ink engineered to obtain stable in‐time while retaining sub‐100 µm resolution. Micro‐structured bio‐shaped protuberances designed as electrodes for electrophysiology. these microstructures combined with polymerizable deep eutectic solvents (polyDES) functional additives, gaining adhesion ionic conductivity. As result novel electrodes, low skin impedance values showed suitable performance electromyography recording on forearm. Finally, concluded use polyDES conferred over time, usability electrode 90 days after fabrication without losing its performance. All all, demonstrated very easy‐to‐make procedure allows PEDOT:PSS soft, hard, and/or flexible substrates, opening up paradigm multi‐functional field bioelectronics wearables.

Язык: Английский

Процитировано

19

Advances in conducting nanocomposite hydrogels for wearable biomonitoring DOI
Arpita Roy, Ronak Afshari, Saumya Jain

и другие.

Chemical Society Reviews, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Recent advancements in wearable biosensors and bioelectronics highlight biocompatible conducting nanocomposite hydrogels as key components for personalized health devices soft electronics.

Язык: Английский

Процитировано

3

Photocuring 3D Printing of Hydrogels: Techniques, Materials, and Applications in Tissue Engineering and Flexible Devices DOI

Guoqiang Lu,

Ruifen Tang, Jun Nie

и другие.

Macromolecular Rapid Communications, Год журнала: 2024, Номер 45(7)

Опубликована: Янв. 25, 2024

Photocuring 3D printing of hydrogels, with sophisticated, delicate structures and biocompatibility, attracts significant attention by researchers possesses promising application in the fields tissue engineering flexible devices. After years development, photocuring technologies hydrogel inks make great progress. Herein, techniques including direct ink writing (DIW), stereolithography (SLA), digital light processing (DLP), continuous liquid interface production (CLIP), volumetric additive manufacturing (VAM), two photon polymerization (TPP) are reviewed. Further, raw materials for (photocurable polymers, monomers, photoinitiators, additives) applications devices also At last, current challenges future perspectives hydrogels discussed.

Язык: Английский

Процитировано

16

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

Shixia Lan,

Yongyun Mao, Bingpu Zhou

и другие.

Nano Energy, Год журнала: 2024, Номер 134, С. 110572 - 110572

Опубликована: Дек. 11, 2024

Язык: Английский

Процитировано

13

Three-Dimensional Printing of Hydrogels for Flexible Sensors: A Review DOI Creative Commons
Suhail Ayoub Khan, Hamza Ahmad, Guoyin Zhu

и другие.

Gels, Год журнала: 2024, Номер 10(3), С. 187 - 187

Опубликована: Март 8, 2024

The remarkable flexibility and heightened sensitivity of flexible sensors have drawn significant attention, setting them apart from traditional sensor technology. Within this domain, hydrogels—3D crosslinked networks hydrophilic polymers—emerge as a leading material for the new generation sensors, thanks to their unique properties. These include structural versatility, which imparts traits like adhesiveness self-healing capabilities. Traditional templating-based methods fall short tailor-made applications in crafting sensors. In contrast, 3D printing technology stands out with its superior fabrication precision, cost-effectiveness, satisfactory production efficiency, making it more suitable approach than strategies. This review spotlights latest hydrogel-based developed through printing. It begins by categorizing hydrogels outlining various 3D-printing techniques. then focuses on range sensors—including those strain, pressure, pH, temperature, biosensors—detailing applications. Furthermore, explores sensing mechanisms concludes an analysis existing challenges prospects future research breakthroughs field.

Язык: Английский

Процитировано

11

3D printed PEDOT:PSS-based conducting and patternable eutectogel electrodes for machine learning on textiles DOI Creative Commons
Ruben Ruiz‐Mateos Serrano, Ana Aguzin,

Eleni Mitoudi‐Vagourdi

и другие.

Biomaterials, Год журнала: 2024, Номер 310, С. 122624 - 122624

Опубликована: Май 24, 2024

The proliferation of medical wearables necessitates the development novel electrodes for cutaneous electrophysiology. In this work, poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) is combined with a deep eutectic solvent (DES) and polyethylene glycol diacrylate (PEGDA) to develop printable biocompatible long-term electrophysiology recordings. impact printing parameters on conducting properties, morphological characteristics, mechanical stability biocompatibility material were investigated. optimised eutectogel formulations fabricated in four different patterns —flat, pyramidal, striped wavy— explore influence electrode geometry skin conformability contact. These employed impedance forearm EMG measurements. Furthermore, arrays twenty embedded into textile used generate body surface potential maps (BSPMs) forearm, where finger movements recorded analysed. Finally, BSPMs three letters (B, I, O) sign-language train logistic regressor classifier able reliably identify each letter. This fabrication approach offers new opportunities electrophysiological recordings, online translation brain-machine interfaces.

Язык: Английский

Процитировано

11

4D Printing of Physical Stimuli-Responsive Hydrogels for Localized Drug Delivery and Tissue Engineering DOI

Alireza Sadraei,

Seyed Morteza Naghib

Polymer Reviews, Год журнала: 2024, Номер unknown, С. 1 - 65

Опубликована: Ноя. 20, 2024

The biomedical industry has witnessed a transformative evolution with the advent of 3D printing technology. However, inherent limitations, such as inability to produce dynamic human tissues due absence temporal dimension, have persisted, resulting in static and inanimate printed products. To address this challenge enable creation living constructs, concept 4D emerged, marking paradigm shift additive manufacturing. In printing, time becomes fourth breathing life into previously creations. This review paper explores journey from pivotal role manufacturing process. Specifically, it highlights integration time-dependent responsive materials, focusing on stimuli-responsive hydrogels, cornerstone advancements. These materials exhibit remarkable ability adapt respond various stimuli, encompassing physical, chemical, biological signals. delves recent publications synergy between these stimuli shedding light their intricate interactions potential applications. One primary areas interest lies medical applications, notably tissue engineering, where holds immense promise. utilization creating biomimetic scaffolds that can dynamically complex environments. Furthermore, discusses technical considerations prospects technology, emphasizing its revolutionize landscape. amalgamation opens new avenues for personalized medicine, localized drug delivery, regenerative therapies, bridging gap requirements modern healthcare. present offers complete examination evolution, challenges, paving way innovations field.

Язык: Английский

Процитировано

11