1
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Salvigni L, Nayak PD, Koklu A, Arcangeli D, Uribe J, Hama A, Silva R, Hidalgo Castillo TC, Griggs S, Marks A, McCulloch I, Inal S. Reconfiguration of organic electrochemical transistors for high-accuracy potentiometric sensing. Nat Commun 2024; 15:6499. [PMID: 39090103 PMCID: PMC11294360 DOI: 10.1038/s41467-024-50792-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Accepted: 07/16/2024] [Indexed: 08/04/2024] Open
Abstract
Organic electrochemical transistors have emerged as a promising alternative to traditional 2/3 electrode setups for sensing applications, offering in-situ transduction, electrochemical amplification, and noise reduction. Several of these devices are designed to detect potentiometric-derived signals. However, potentiometric sensing should be performed under open circuit potential conditions, allowing the system to reach thermodynamic equilibrium. This criterion is not met by conventional organic electrochemical transistors, where voltages or currents are directly applied to the sensing interface, that is, the gate electrode. In this work, we introduce an organic electrochemical transistor sensing configuration called the potentiometric‑OECT (pOECT), which maintains the sensing electrode under open circuit potential conditions. The pOECT exhibits a higher response than the 2-electrode setup and offers greater accuracy, response, and stability compared to conventional organic electrochemical transistors. Additionally, it allows for the implementation of high-impedance electrodes as gate/sensing surfaces, all without compromising the overall device size.
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Affiliation(s)
- Luca Salvigni
- Organic Bioelectronics Laboratory, Biological and Environmental Science and Engineering Division, KAUST, Thuwal, Saudi Arabia
| | - Prem Depan Nayak
- Organic Bioelectronics Laboratory, Biological and Environmental Science and Engineering Division, KAUST, Thuwal, Saudi Arabia
| | - Anil Koklu
- Organic Bioelectronics Laboratory, Biological and Environmental Science and Engineering Division, KAUST, Thuwal, Saudi Arabia
| | - Danilo Arcangeli
- Organic Bioelectronics Laboratory, Biological and Environmental Science and Engineering Division, KAUST, Thuwal, Saudi Arabia
| | - Johana Uribe
- Organic Bioelectronics Laboratory, Biological and Environmental Science and Engineering Division, KAUST, Thuwal, Saudi Arabia
| | - Adel Hama
- Organic Bioelectronics Laboratory, Biological and Environmental Science and Engineering Division, KAUST, Thuwal, Saudi Arabia
| | - Raphaela Silva
- Organic Bioelectronics Laboratory, Biological and Environmental Science and Engineering Division, KAUST, Thuwal, Saudi Arabia
| | - Tania Cecilia Hidalgo Castillo
- Organic Bioelectronics Laboratory, Biological and Environmental Science and Engineering Division, KAUST, Thuwal, Saudi Arabia
| | - Sophie Griggs
- University of Oxford, Department of Chemistry, Oxford, UK
| | - Adam Marks
- University of Oxford, Department of Chemistry, Oxford, UK
| | - Iain McCulloch
- University of Oxford, Department of Chemistry, Oxford, UK
| | - Sahika Inal
- Organic Bioelectronics Laboratory, Biological and Environmental Science and Engineering Division, KAUST, Thuwal, Saudi Arabia.
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2
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Bisquert J, Ilyassov B, Tessler N. Switching Response in Organic Electrochemical Transistors by Ionic Diffusion and Electronic Transport. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2404182. [PMID: 39052878 DOI: 10.1002/advs.202404182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 06/24/2024] [Indexed: 07/27/2024]
Abstract
The switching response in organic electrochemical transistors (OECT) is a basic effect in which a transient current occurs in response to a voltage perturbation. This phenomenon has an important impact on different aspects of the application of OECT, such as the equilibration times, the hysteresis dependence on scan rates, and the synaptic properties for neuromorphic applications. Here we establish a model that unites vertical ion diffusion and horizontal electronic transport for the analysis of the time-dependent current response of OECTs. We use a combination of tools consisting of a physical analytical model; advanced 2D drift-diffusion simulation; and the experimental measurement of a poly(3-hexylthiophene) (P3HT) OECT. We show the reduction of the general model to simple time-dependent equations for the average ionic/hole concentration inside the organic film, which produces a Bernards-Malliaras conservation equation coupled with a diffusion equation. We provide a basic classification of the transient response to a voltage pulse, and the correspondent hysteresis effects of the transfer curves. The shape of transients is basically related to the main control phenomenon, either the vertical diffusion of ions during doping and dedoping, or the equilibration of electronic current along the channel length.
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Affiliation(s)
- Juan Bisquert
- Instituto de Tecnología Química (Universitat Politècnica de València-Agencia Estatal Consejo Superior de Investigaciones Científicas), Av. dels Tarongers, València, 46022, Spain
- Institute of Advanced Materials (INAM), Universitat Jaume I, Castelló, 12006, Spain
| | - Baurzhan Ilyassov
- Astana IT University, Mangilik El 55/11, EXPO C1, Astana, 010000, Kazakhstan
| | - Nir Tessler
- Andrew & Erna Viterbi Department of Electrical and Computer Engineering, Technion-Israel Institute of Technology, Haifa, 32000, Israel
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3
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Gu M, Travaglini L, Ta D, Hopkins J, Lauto A, Wagner P, Wagner K, Officer DL, Mawad D. A PEDOT based graft copolymer with enhanced electronic stability. MATERIALS HORIZONS 2024. [PMID: 39041229 DOI: 10.1039/d4mh00654b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/24/2024]
Abstract
Poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) remains the most investigated conjugated polymer in bioelectronics, due to its biocompatibility, high conductivity, and commercial availability. Despite these advantages, it suffers from structural and electronic instability, associated with the PSS component. Here, a graft copolymer based on ionised sulfonic modified PEDOT, poly(EDOTS-g-EDOT), was electrochemically synthesised with demonstrated structural and electronic stability and enhanced electrochemical performance. The graft copolymer was insoluble in water without crosslinking, and exhibited enhanced ion diffusion upon electrochemical switching, as revealed by its volumetric capacitance (159 ± 8 F cm-3), which was significantly higher than that of spin-coated PEDOT:PSS films (41 ± 5 F cm-3). Similarly, its performance as an active channel material in organic electrochemical transistors (OECTs) was superior to the spin-coated PEDOT:PSS, as shown for instance by its high normalised transconductance (273 ± 79 S cm-1) and a significantly high ION/IOFF ratio (19 345 ± 1205). Its short- and long-term electronic stability were also confirmed with no drop in its output drain current, despite its high swelling degree. In contrast, the spin-coated PEDOT:PSS experienced a significant deterioration in its performance over the same operational time. The facile synthesis and improved performance of poly(EDOTS-g-EDOT) highlight the importance of innovative material design in overcoming existing operational shortcomings in electronic devices.
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Affiliation(s)
- Modi Gu
- School of Materials Science and Engineering, UNSW Sydney, Sydney, New South Wales 2052, Australia.
| | - Lorenzo Travaglini
- School of Materials Science and Engineering, UNSW Sydney, Sydney, New South Wales 2052, Australia.
| | - Daniel Ta
- School of Science, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia
| | - Jonathan Hopkins
- School of Materials Science and Engineering, UNSW Sydney, Sydney, New South Wales 2052, Australia.
| | - Antonio Lauto
- School of Science, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia
| | - Pawel Wagner
- Intelligent Polymer Research Institute and ARC Centre of Excellence for Electromaterials Science, University of Wollongong, Wollongong, New South Wales 2522, Australia
| | - Klaudia Wagner
- Intelligent Polymer Research Institute and ARC Centre of Excellence for Electromaterials Science, University of Wollongong, Wollongong, New South Wales 2522, Australia
| | - David L Officer
- Intelligent Polymer Research Institute and ARC Centre of Excellence for Electromaterials Science, University of Wollongong, Wollongong, New South Wales 2522, Australia
| | - Damia Mawad
- School of Materials Science and Engineering, UNSW Sydney, Sydney, New South Wales 2052, Australia.
- Australian Centre for NanoMedicine, UNSW Sydney, Sydney, New South Wales 2052, Australia
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4
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Bonafè F, Dong C, Malliaras GG, Cramer T, Fraboni B. Subsurface Profiling of Ion Migration and Swelling in Conducting Polymer Actuators with Modulated Electrochemical Atomic Force Microscopy. ACS APPLIED MATERIALS & INTERFACES 2024; 16:36727-36734. [PMID: 38972069 DOI: 10.1021/acsami.4c08459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/09/2024]
Abstract
Understanding the dynamics of ion migration and volume change is crucial to studying the functionality and long-term stability of soft polymeric materials operating at liquid interfaces, but the subsurface characterization of swelling processes in these systems remains elusive. In this work, we address the issue using modulated electrochemical atomic force microscopy as a depth-sensitive technique to study electroswelling effects in the high-performance actuator material polypyrrole doped with dodecylbenzenesulfonate (Ppy:DBS). We perform multidimensional measurements combining local electroswelling and electrochemical impedance spectroscopies on microstructured Ppy:DBS actuators. We interpret charge accumulation in the polymeric matrix with a quantitative model, giving access to both the spatiotemporal dynamics of ion migration and the distribution of electroswelling in the electroactive polymer layer. The findings demonstrate a nonuniform distribution of the effective ionic volume in the Ppy:DBS layer depending on the film morphology and redox state. Our findings indicate that the highly efficient actuation performance of Ppy:DBS is caused by rearrangements of the polymer microstructure induced by charge accumulation in the soft polymeric matrix, increasing the effective ionic volume in the bulk of the electroactive film for up to two times the value measured in free water.
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Affiliation(s)
- Filippo Bonafè
- Department of Physics and Astronomy, University of Bologna, Viale Berti Pichat 6/2, 40127 Bologna, Italy
| | - Chaoqun Dong
- Electrical Engineering Division, Department of Engineering, University of Cambridge, Cambridge CB3 0FA, U.K
| | - George G Malliaras
- Electrical Engineering Division, Department of Engineering, University of Cambridge, Cambridge CB3 0FA, U.K
| | - Tobias Cramer
- Department of Physics and Astronomy, University of Bologna, Viale Berti Pichat 6/2, 40127 Bologna, Italy
| | - Beatrice Fraboni
- Department of Physics and Astronomy, University of Bologna, Viale Berti Pichat 6/2, 40127 Bologna, Italy
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5
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Li N, Wang Y, Zhao W, Chen Z, Liu P, Zhou W, Jiang F, Liu C, Xu J. Effect of Aggregation Structure on Capacitive Energy Storage in Conducting Polymer Films. Chemphyschem 2024; 25:e202400103. [PMID: 38606697 DOI: 10.1002/cphc.202400103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 04/10/2024] [Accepted: 04/11/2024] [Indexed: 04/13/2024]
Abstract
Conducting polymers (CPs), a significant class of electrochemical capacitor electrode materials, exhibit exceptional capacitive energy storage performance in aqueous electrolytes. Current research primarily concentrates on enhancing the electrical conductivity and capacitive performance of CPs via molecular design and structural control. However, the absence of a comprehensive understanding of the impact of molecular chain spatial order on ion/electron transport and capacitive performance impedes the development and optimization of advanced electrode materials. Here, a solvent treatment strategy is employed to modulate the molecular chain spatial order of PEDOT : PSS films. The results of electrochemical performance tests and Grazing Incidence Wide Angle X-ray Scattering (GIWAXS) show that Poly(3,4-ethylenedioxythiophene) : poly(styrenesulfonic acid) (PEDOT : PSS) films with both face-on and edge-on orientations exhibit exceptional electronic conductivity and ion diffusion efficiency, with capacitive performance 1.33 times higher than that of PEDOT : PSS films with only edge-on orientation. Consequently, molecular chain orientations conducive to charge transport not only enhance inter-chain coupling, but also effectively reduce ion transport resistance, enabling efficient capacitive energy storage. This research provides novel insights for the design and development of higher performance CPs-based electrode materials.
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Affiliation(s)
- Na Li
- Flexible Electronics Innovation Institute (FEII) to the Jiangxi Province Key Laboratory of Flexible Electronics (2024SSY03021), Jiangxi Science and Technology Normal University, Nanchang, 330013, P. R. China
- School of Chemistry and Chemical Engineering, department of chemistry, Jiangxi Science and Technology Normal University, Nanchang, 330013, P. R. China
| | - Yeye Wang
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Wendi Zhao
- Flexible Electronics Innovation Institute (FEII) to the Jiangxi Province Key Laboratory of Flexible Electronics (2024SSY03021), Jiangxi Science and Technology Normal University, Nanchang, 330013, P. R. China
- School of Chemistry and Chemical Engineering, department of chemistry, Jiangxi Science and Technology Normal University, Nanchang, 330013, P. R. China
| | - Zhihong Chen
- Flexible Electronics Innovation Institute (FEII) to the Jiangxi Province Key Laboratory of Flexible Electronics (2024SSY03021), Jiangxi Science and Technology Normal University, Nanchang, 330013, P. R. China
- School of Chemistry and Chemical Engineering, department of chemistry, Jiangxi Science and Technology Normal University, Nanchang, 330013, P. R. China
| | - Peipei Liu
- Flexible Electronics Innovation Institute (FEII) to the Jiangxi Province Key Laboratory of Flexible Electronics (2024SSY03021), Jiangxi Science and Technology Normal University, Nanchang, 330013, P. R. China
| | - Weiqiang Zhou
- Flexible Electronics Innovation Institute (FEII) to the Jiangxi Province Key Laboratory of Flexible Electronics (2024SSY03021), Jiangxi Science and Technology Normal University, Nanchang, 330013, P. R. China
| | - Fengxing Jiang
- Flexible Electronics Innovation Institute (FEII) to the Jiangxi Province Key Laboratory of Flexible Electronics (2024SSY03021), Jiangxi Science and Technology Normal University, Nanchang, 330013, P. R. China
| | - Congcong Liu
- Flexible Electronics Innovation Institute (FEII) to the Jiangxi Province Key Laboratory of Flexible Electronics (2024SSY03021), Jiangxi Science and Technology Normal University, Nanchang, 330013, P. R. China
| | - Jingkun Xu
- Flexible Electronics Innovation Institute (FEII) to the Jiangxi Province Key Laboratory of Flexible Electronics (2024SSY03021), Jiangxi Science and Technology Normal University, Nanchang, 330013, P. R. China
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6
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Zhao C, Yang J, Ma W. Transient Response and Ionic Dynamics in Organic Electrochemical Transistors. NANO-MICRO LETTERS 2024; 16:233. [PMID: 38954272 PMCID: PMC11219702 DOI: 10.1007/s40820-024-01452-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Accepted: 06/05/2024] [Indexed: 07/04/2024]
Abstract
The rapid development of organic electrochemical transistors (OECTs) has ushered in a new era in organic electronics, distinguishing itself through its application in a variety of domains, from high-speed logic circuits to sensitive biosensors, and neuromorphic devices like artificial synapses and organic electrochemical random-access memories. Despite recent strides in enhancing OECT performance, driven by the demand for superior transient response capabilities, a comprehensive understanding of the complex interplay between charge and ion transport, alongside electron-ion interactions, as well as the optimization strategies, remains elusive. This review aims to bridge this gap by providing a systematic overview on the fundamental working principles of OECT transient responses, emphasizing advancements in device physics and optimization approaches. We review the critical aspect of transient ion dynamics in both volatile and non-volatile applications, as well as the impact of materials, morphology, device structure strategies on optimizing transient responses. This paper not only offers a detailed overview of the current state of the art, but also identifies promising avenues for future research, aiming to drive future performance advancements in diversified applications.
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Affiliation(s)
- Chao Zhao
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
| | - Jintao Yang
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
| | - Wei Ma
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China.
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7
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He Q, Ning J, Chen H, Jiang Z, Wang J, Chen D, Zhao C, Liu Z, Perepichka IF, Meng H, Huang W. Achievements, challenges, and perspectives in the design of polymer binders for advanced lithium-ion batteries. Chem Soc Rev 2024; 53:7091-7157. [PMID: 38845536 DOI: 10.1039/d4cs00366g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
Energy storage devices with high power and energy density are in demand owing to the rapidly growing population, and lithium-ion batteries (LIBs) are promising rechargeable energy storage devices. However, there are many issues associated with the development of electrode materials with a high theoretical capacity, which need to be addressed before their commercialization. Extensive research has focused on the modification and structural design of electrode materials, which are usually expensive and sophisticated. Besides, polymer binders are pivotal components for maintaining the structural integrity and stability of electrodes in LIBs. Polyvinylidene difluoride (PVDF) is a commercial binder with superior electrochemical stability, but its poor adhesion, insufficient mechanical properties, and low electronic and ionic conductivity hinder its wide application as a high-capacity electrode material. In this review, we highlight the recent progress in developing different polymeric materials (based on natural polymers and synthetic non-conductive and electronically conductive polymers) as binders for the anodes and cathodes in LIBs. The influence of the mechanical, adhesion, and self-healing properties as well as electronic and ionic conductivity of polymers on the capacity, capacity retention, rate performance and cycling life of batteries is discussed. Firstly, we analyze the failure mechanisms of binders based on the operation principle of lithium-ion batteries, introducing two models of "interface failure" and "degradation failure". More importantly, we propose several binder parameters applicable to most lithium-ion batteries and systematically consider and summarize the relationships between the chemical structure and properties of the binder at the molecular level. Subsequently, we select silicon and sulfur active electrode materials as examples to discuss the design principles of the binder from a molecular structure point of view. Finally, we present our perspectives on the development directions of binders for next-generation high-energy-density lithium-ion batteries. We hope that this review will guide researchers in the further design of novel efficient binders for lithium-ion batteries at the molecular level, especially for high energy density electrode materials.
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Affiliation(s)
- Qiang He
- School of Advanced Materials, Peking University Shenzhen Graduate School, 2199 Lishui Road, Nanshan district, Shenzhen 518055, China.
- Frontiers Science Center for Flexible Electronics, Institute of Flexible Electronics (IFE), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an 710072, China.
| | - Jiaoyi Ning
- Multi-scale Porous Materials Center, Institute of Advanced Interdisciplinary Studies & School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Hongming Chen
- College of Materials Science and Engineering, Fuzhou University, Fuzhou 350116, P. R. China
| | - Zhixiang Jiang
- Frontiers Science Center for Flexible Electronics, Institute of Flexible Electronics (IFE), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an 710072, China.
| | - Jianing Wang
- Frontiers Science Center for Flexible Electronics, Institute of Flexible Electronics (IFE), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an 710072, China.
| | - Dinghui Chen
- Frontiers Science Center for Flexible Electronics, Institute of Flexible Electronics (IFE), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an 710072, China.
| | - Changbin Zhao
- School of Advanced Materials, Peking University Shenzhen Graduate School, 2199 Lishui Road, Nanshan district, Shenzhen 518055, China.
| | - Zhenguo Liu
- Frontiers Science Center for Flexible Electronics, Institute of Flexible Electronics (IFE), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an 710072, China.
| | - Igor F Perepichka
- Frontiers Science Center for Flexible Electronics, Institute of Flexible Electronics (IFE), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an 710072, China.
- Department of Physical Chemistry and Technology of Polymers, Faculty of Chemistry, Silesian University of Technology, M. Strzody Street 9, Gliwice 44-100, Poland
- Centre for Organic and Nanohybrid Electronics (CONE), Silesian University of Technology, S. Konarskiego Street 22b, Gliwice 44-100, Poland
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montréal, Québec H3A 0B8, Canada
| | - Hong Meng
- School of Advanced Materials, Peking University Shenzhen Graduate School, 2199 Lishui Road, Nanshan district, Shenzhen 518055, China.
- Frontiers Science Center for Flexible Electronics, Institute of Flexible Electronics (IFE), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an 710072, China.
| | - Wei Huang
- Frontiers Science Center for Flexible Electronics, Institute of Flexible Electronics (IFE), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an 710072, China.
- Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
- Key Laboratory for Organic Electronics and Information Displays, Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing 210023, China
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8
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Roshanbinfar K, Schiffer M, Carls E, Angeloni M, Koleśnik-Gray M, Schruefer S, Schubert DW, Ferrazzi F, Krstić V, Fleischmann BK, Roell W, Engel FB. Electrically Conductive Collagen-PEDOT:PSS Hydrogel Prevents Post-Infarct Cardiac Arrhythmia and Supports hiPSC-Cardiomyocyte Function. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2403642. [PMID: 38653478 DOI: 10.1002/adma.202403642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Indexed: 04/25/2024]
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 deaths (SCD). The most effective therapy for SCD prevention is implantable cardioverter defibrillators (ICDs). However, ICDs contribute to adverse remodeling and disease progression and 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) and can be combined with human induced pluripotent stem cell (hiPSC)-cardiomyocytes to promote partial cardiac remuscularization. PEDOT:PSS improves collagen gel formation, micromorphology, and conductivity. hiPSC-cardiomyocytes in collagen-PEDOT:PSS hydrogels exhibit near-adult sarcomeric length, improved contractility, enhanced calcium handling, and conduction velocity. RNA-sequencing data indicate enhanced maturation and improved cell-matrix interactions. Injecting collagen-PEDOT:PSS hydrogels in infarcted mouse hearts decreases VT to the levels of healthy hearts. Collectively, collagen-PEDOT:PSS hydrogels offer a versatile platform for treating cardiac injuries.
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Affiliation(s)
- Kaveh Roshanbinfar
- Experimental Renal and Cardiovascular Research, Department of Nephropathology, Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054, Erlangen, Germany
| | - Miriam Schiffer
- Institute of Physiology I, Life and Brain Center, Medical Faculty, University of Bonn, Germany
| | - Esther Carls
- Department of Cardiac Surgery, UKB, University of Bonn, Germany
| | - Miriam Angeloni
- Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054, Erlangen, Germany
| | - Maria Koleśnik-Gray
- Department of Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Staudtstr. 7, 91058, Erlangen, Germany
| | - Stefan Schruefer
- Institute of Polymer Materials, Department of Materials Science and Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Martensstr. 7, 91058, Erlangen, Germany
| | - Dirk W Schubert
- Institute of Polymer Materials, Department of Materials Science and Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Martensstr. 7, 91058, Erlangen, Germany
| | - Fulvia Ferrazzi
- Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054, Erlangen, Germany
- Department of Nephropathology, Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Muscle Research Center Erlangen (MURCE), 91054, Erlangen, Germany
| | - Vojislav Krstić
- Department of Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Staudtstr. 7, 91058, Erlangen, Germany
| | - Bernd K Fleischmann
- Institute of Physiology I, Life and Brain Center, Medical Faculty, University of Bonn, Germany
| | - Wilhelm Roell
- Department of Cardiac Surgery, UKB, University of Bonn, Germany
| | - Felix B Engel
- Experimental Renal and Cardiovascular Research, Department of Nephropathology, Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054, Erlangen, Germany
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9
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Kim H, Won Y, Song HW, Kwon Y, Jun M, Oh JH. Organic Mixed Ionic-Electronic Conductors for Bioelectronic Sensors: Materials and Operation Mechanisms. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2306191. [PMID: 38148583 PMCID: PMC11251567 DOI: 10.1002/advs.202306191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 12/18/2023] [Indexed: 12/28/2023]
Abstract
The field of organic mixed ionic-electronic conductors (OMIECs) has gained significant attention due to their ability to transport both electrons and ions, making them promising candidates for various applications. Initially focused on inorganic materials, the exploration of mixed conduction has expanded to organic materials, especially polymers, owing to their advantages such as solution processability, flexibility, and property tunability. OMIECs, particularly in the form of polymers, possess both electronic and ionic transport functionalities. This review provides an overview of OMIECs in various aspects covering mechanisms of charge transport including electronic transport, ionic transport, and ionic-electronic coupling, as well as conducting/semiconducting conjugated polymers and their applications in organic bioelectronics, including (multi)sensors, neuromorphic devices, and electrochromic devices. OMIECs show promise in organic bioelectronics due to their compatibility with biological systems and the ability to modulate electronic conduction and ionic transport, resembling the principles of biological systems. Organic electrochemical transistors (OECTs) based on OMIECs offer significant potential for bioelectronic applications, responding to external stimuli through modulation of ionic transport. An in-depth review of recent research achievements in organic bioelectronic applications using OMIECs, categorized based on physical and chemical stimuli as well as neuromorphic devices and circuit applications, is presented.
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Affiliation(s)
- Hyunwook Kim
- School of Chemical and Biological EngineeringInstitute of Chemical ProcessesSeoul National University1 Gwanak‐roGwanak‐guSeoul08826Republic of Korea
| | - Yousang Won
- School of Chemical and Biological EngineeringInstitute of Chemical ProcessesSeoul National University1 Gwanak‐roGwanak‐guSeoul08826Republic of Korea
| | - Hyun Woo Song
- School of Chemical and Biological EngineeringInstitute of Chemical ProcessesSeoul National University1 Gwanak‐roGwanak‐guSeoul08826Republic of Korea
| | - Yejin Kwon
- School of Chemical and Biological EngineeringInstitute of Chemical ProcessesSeoul National University1 Gwanak‐roGwanak‐guSeoul08826Republic of Korea
| | - Minsang Jun
- School of Chemical and Biological EngineeringInstitute of Chemical ProcessesSeoul National University1 Gwanak‐roGwanak‐guSeoul08826Republic of Korea
| | - Joon Hak Oh
- School of Chemical and Biological EngineeringInstitute of Chemical ProcessesSeoul National University1 Gwanak‐roGwanak‐guSeoul08826Republic of Korea
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10
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Alessandri R, Li CH, Keating S, Mohanty KT, Peng A, Lutkenhaus JL, Rowan SJ, Tabor DP, de Pablo JJ. Structural, Ionic, and Electronic Properties of Solid-State Phthalimide-Containing Polymers for All-Organic Batteries. JACS AU 2024; 4:2300-2311. [PMID: 38938799 PMCID: PMC11200234 DOI: 10.1021/jacsau.4c00276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 05/13/2024] [Accepted: 05/17/2024] [Indexed: 06/29/2024]
Abstract
Redox-active polymers serving as the active materials in solid-state electrodes offer a promising path toward realizing all-organic batteries. While both cathodic and anodic redox-active polymers are needed, the diversity of the available anodic materials is limited. Here, we predict solid-state structural, ionic, and electronic properties of anodic, phthalimide-containing polymers using a multiscale approach that combines atomistic molecular dynamics, electronic structure calculations, and machine learning surrogate models. Importantly, by combining information from each of these scales, we are able to bridge the gap between bottom-up molecular characteristics and macroscopic properties such as apparent diffusion coefficients of electron transport (D app). We investigate the impact of different polymer backbones and of two critical factors during battery operation: state of charge and polymer swelling. Our findings reveal that the state of charge significantly influences solid-state packing and the thermophysical properties of the polymers, which, in turn, affect ionic and electronic transport. A combination of molecular-level properties (such as the reorganization energy) and condensed-phase properties (such as effective electron hopping distances) determine the predicted ranking of electron transport capabilities of the polymers. We predict D app for the phthalimide-based polymers and for a reference nitroxide radical-based polymer, finding a 3 orders of magnitude increase in D app (≈10-6 cm2 s-1) with respect to the reference. This study underscores the promise of phthalimide-containing polymers as highly capable redox-active polymers for anodic materials in all-organic batteries, due to their exceptional predicted electron transport capabilities.
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Affiliation(s)
- Riccardo Alessandri
- Pritzker
School of Molecular Engineering, University
of Chicago, Chicago, Illinois 60637, United States
| | - Cheng-Han Li
- Department
of Chemistry, Texas A&M University, College Station, Texas 77842, United States
| | - Sheila Keating
- Department
of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Khirabdhi T. Mohanty
- Artie
McFerrin Department of Chemical Engineering, Texas A&M University, College
Station, Texas 77843, United States
| | - Aaron Peng
- Pritzker
School of Molecular Engineering, University
of Chicago, Chicago, Illinois 60637, United States
| | - Jodie L. Lutkenhaus
- Artie
McFerrin Department of Chemical Engineering and Department of Materials
Science & Engineering, Texas A&M
University, College Station, Texas 77843, United States
| | - Stuart J. Rowan
- Pritzker
School of Molecular Engineering, University
of Chicago, Chicago, Illinois 60637, United States
- Department
of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Daniel P. Tabor
- Department
of Chemistry, Texas A&M University, College Station, Texas 77842, United States
| | - Juan J. de Pablo
- Pritzker
School of Molecular Engineering, University
of Chicago, Chicago, Illinois 60637, United States
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11
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Hackney HE, Perepichka DF. Dynamic Knoevenagel Condensation of p-Tolyl Carbenium Cations. Org Lett 2024; 26:5125-5129. [PMID: 38856013 DOI: 10.1021/acs.orglett.4c01548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
We report here that methyl-substituted hexamethoxytrityl (HMT) and the derived trioxatriangulene (TOTA) salts react with aldehydes, forming π-extended tristyryl-substituted HMT and TOTA dyes via a dynamic Knoevenagel condensation. These cations undergo a reversible electrochemical (or chemical) reduction, forming neutral radicals, including the first persistent TOTA radical. This reaction represents a promising platform to generate novel π-conjugated systems.
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Affiliation(s)
- Hannah E Hackney
- Department of Chemistry, McGill University, Montreal, Quebec H3A 0B8, Canada
| | - Dmytro F Perepichka
- Department of Chemistry, McGill University, Montreal, Quebec H3A 0B8, Canada
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12
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Blau R, Abdal A, Root N, Chen AX, Rafeedi T, Ramji R, Qie Y, Kim T, Navarro A, Chin J, Becerra LL, Edmunds SJ, Russman SM, Dayeh SA, Fenning DP, Rouw R, Lipomi DJ. Conductive block copolymer elastomers and psychophysical thresholding for accurate haptic effects. Sci Robot 2024; 9:eadk3925. [PMID: 38865475 DOI: 10.1126/scirobotics.adk3925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 05/16/2024] [Indexed: 06/14/2024]
Abstract
Electrotactile stimulus is a form of sensory substitution in which an electrical signal is perceived as a mechanical sensation. The electrotactile effect could, in principle, recapitulate a range of tactile experience by selective activation of nerve endings. However, the method has been plagued by inconsistency, galvanic reactions, pain and desensitization, and unwanted stimulation of nontactile nerves. Here, we describe how a soft conductive block copolymer, a stretchable layout, and concentric electrodes, along with psychophysical thresholding, can circumvent these shortcomings. These purpose-designed materials, device layouts, and calibration techniques make it possible to generate accurate and reproducible sensations across a cohort of 10 human participants and to do so at ultralow currents (≥6 microamperes) without pain or desensitization. This material, form factor, and psychophysical approach could be useful for haptic devices and as a tool for activation of the peripheral nervous system.
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Affiliation(s)
- Rachel Blau
- Aiiso Yufeng Li Family Department of Chemical and Nano Engineering, University of California, San Diego, La Jolla, CA, USA
| | - Abdulhameed Abdal
- Aiiso Yufeng Li Family Department of Chemical and Nano Engineering, University of California, San Diego, La Jolla, CA, USA
- Department of Mechanical and Aerospace Engineering, University of California, San Diego, La Jolla, CA, USA
| | - Nicholas Root
- Brain and Cognition, Psychology Department, University of Amsterdam, Amsterdam, Netherlands
| | - Alexander X Chen
- Aiiso Yufeng Li Family Department of Chemical and Nano Engineering, University of California, San Diego, La Jolla, CA, USA
| | - Tarek Rafeedi
- Aiiso Yufeng Li Family Department of Chemical and Nano Engineering, University of California, San Diego, La Jolla, CA, USA
| | - Robert Ramji
- Aiiso Yufeng Li Family Department of Chemical and Nano Engineering, University of California, San Diego, La Jolla, CA, USA
| | - Yi Qie
- Aiiso Yufeng Li Family Department of Chemical and Nano Engineering, University of California, San Diego, La Jolla, CA, USA
| | - Taewoo Kim
- Aiiso Yufeng Li Family Department of Chemical and Nano Engineering, University of California, San Diego, La Jolla, CA, USA
| | - Anthony Navarro
- Aiiso Yufeng Li Family Department of Chemical and Nano Engineering, University of California, San Diego, La Jolla, CA, USA
| | - Jason Chin
- Aiiso Yufeng Li Family Department of Chemical and Nano Engineering, University of California, San Diego, La Jolla, CA, USA
| | - Laura L Becerra
- Department of Electrical and Computer Engineering, University of California, San Diego, La Jolla, CA, USA
| | - Samuel J Edmunds
- Department of Electrical and Computer Engineering, University of California, San Diego, La Jolla, CA, USA
| | - Samantha M Russman
- Department of Electrical and Computer Engineering, University of California, San Diego, La Jolla, CA, USA
| | - Shadi A Dayeh
- Department of Electrical and Computer Engineering, University of California, San Diego, La Jolla, CA, USA
| | - David P Fenning
- Aiiso Yufeng Li Family Department of Chemical and Nano Engineering, University of California, San Diego, La Jolla, CA, USA
| | - Romke Rouw
- Brain and Cognition, Psychology Department, University of Amsterdam, Amsterdam, Netherlands
| | - Darren J Lipomi
- Aiiso Yufeng Li Family Department of Chemical and Nano Engineering, University of California, San Diego, La Jolla, CA, USA
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13
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Jafari M, Pedersen JO, Barhemat S, Ederth T. In Situ Surface-Enhanced Raman Spectroscopy on Organic Mixed Ionic-Electronic Conductors: Tracking Dynamic Doping in Light-Emitting Electrochemical Cells. ACS APPLIED MATERIALS & INTERFACES 2024; 16:28938-28948. [PMID: 38780164 PMCID: PMC11163397 DOI: 10.1021/acsami.4c00684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 04/11/2024] [Accepted: 05/14/2024] [Indexed: 05/25/2024]
Abstract
In the domain of organic mixed ionic-electronic conductors (OMIECs), simultaneous transport and coupling of ionic and electronic charges are crucial for the function of electrochemical devices in organic electronics. Understanding conduction mechanisms and chemical reactions in operational devices is pivotal for performance enhancement and is necessary for the informed and systematic development of more promising materials. Surface-enhanced Raman spectroscopy (SERS) is a potent tool for monitoring electrochemical evolution and dynamic doping in operational devices, offering enhanced sensitivity to subtle spectral changes. We demonstrate the utility of SERS for in situ tracking of doping in OMIECs in an organic light-emitting electrochemical cell (LEC) containing a conjugated polymer (poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene]; MEH-PPV), a molecular anion (lithium triflate), and an electrolyte network (poly(ethylene oxide); PEO). SERS enhancement is achieved via an interleaved layer of gold particles formed by spontaneous breakup of a deposited thin gold film. The results successfully highlight the ability of SERS to unveil time-resolved MEH-PPV doping and polaron formation, elucidating the effects of triflate ion transfer in the operating device and validating the electrochemical doping model in LECs.
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Affiliation(s)
- Mohammad
Javad Jafari
- Division
of Biophysics and Bioengineering, IFM, Linköping
University, Linköping 581 83, Sweden
| | - Jonas Oshaug Pedersen
- Division
of Biophysics and Bioengineering, IFM, Linköping
University, Linköping 581 83, Sweden
| | - Samira Barhemat
- Department
of Vision Inspection, Mabema AB, Linköping 584 22, Sweden
| | - Thomas Ederth
- Division
of Biophysics and Bioengineering, IFM, Linköping
University, Linköping 581 83, Sweden
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14
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Wu J, Gu M, Travaglini L, Lauto A, Ta D, Wagner P, Wagner K, Zeglio E, Savva A, Officer D, Mawad D. Organic Mixed Ionic-Electronic Conductors Based on Tunable and Functional Poly(3,4-ethylenedioxythiophene) Copolymers. ACS APPLIED MATERIALS & INTERFACES 2024; 16:28969-28979. [PMID: 38778796 DOI: 10.1021/acsami.4c03229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
Organic mixed ionic-electronic conductors (OMIECs) are being explored in applications such as bioelectronics, biosensors, energy conversion and storage, and optoelectronics. OMIECs are largely composed of conjugated polymers that couple ionic and electronic transport in their structure as well as synthetic flexibility. Despite extensive research, previous studies have mainly focused on either enhancing ion conduction or enabling synthetic modification. This limited the number of OMIECs that excel in both domains. Here, a series of OMIECs based on functionalized poly(3,4-ethylenedioxythiophene) (PEDOT) copolymers that combine efficient ion/electron transport with the versatility of post-functionalization were developed. EDOT monomers bearing sulfonic (EDOTS) and carboxylic acid (EDOTCOOH) groups were electrochemically copolymerized in different ratios on oxygen plasma-treated conductive substrates. The plasma treatment enabled the synthesis of copolymers containing high ratios of EDOTS (up to 68%), otherwise not possible with untreated substrates. This flexibility in synthesis resulted in the fabrication of copolymers with tunable properties in terms of conductivity (2-0.0019 S/cm) and ion/electron transport, for example, as revealed by their volumetric capacitances (122-11 F/cm3). The importance of the organic nature of the OMIECs that are amenable to synthetic modification was also demonstrated. EDOTCOOH was successfully post-functionalized without influencing the ionic and electronic transport of the copolymers. This opens a new way to tailor the properties of the OMIECs to specific applications, especially in the field of bioelectronics.
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Affiliation(s)
- Jiaxin Wu
- School of Materials Science and Engineering, UNSW Sydney, Sydney, New South Wales 2052, Australia
| | - Modi Gu
- School of Materials Science and Engineering, UNSW Sydney, Sydney, New South Wales 2052, Australia
| | - Lorenzo Travaglini
- School of Materials Science and Engineering, UNSW Sydney, Sydney, New South Wales 2052, Australia
- School of Biotechnology and Biomolecular Sciences, UNSW Sydney, Sydney, New South Wales 2052, Australia
| | - Antonio Lauto
- School of Science, Western Sydney University, Locked Bag 1797, Penrith, New South Wales 2751, Australia
| | - Daniel Ta
- School of Science, Western Sydney University, Locked Bag 1797, Penrith, New South Wales 2751, Australia
| | - Pawel Wagner
- Intelligent Polymer Research Institute and ARC Centre of Excellence for Electromaterials Science, University of Wollongong, Wollongong, New South Wales 2522, Australia
| | - Klaudia Wagner
- Intelligent Polymer Research Institute and ARC Centre of Excellence for Electromaterials Science, University of Wollongong, Wollongong, New South Wales 2522, Australia
| | - Erica Zeglio
- Wallenberg Initiative Materials Science for Sustainability, Department of Materials and Environmental Chemistry, Stockholm University, 114 18 Stockholm, Sweden
- AIMES - Center for the Advancement of Integrated Medical and Engineering Sciences, Department of Neuroscience, Karolinska Institute, 17177 Stockholm, Sweden
- Digital Futures, Stockholm SE-100 44, Sweden
| | - Achilleas Savva
- Bioelectronics Section, Department of Microelectronics, Faculty of Electrical Engineering, Mathematics and Computer Science, Delft University of Technology, Mekelweg 4, Delft 2628 CD, The Netherlands
| | - David Officer
- Intelligent Polymer Research Institute and ARC Centre of Excellence for Electromaterials Science, University of Wollongong, Wollongong, New South Wales 2522, Australia
| | - Damia Mawad
- School of Materials Science and Engineering, UNSW Sydney, Sydney, New South Wales 2052, Australia
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15
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Nguyen-Dang T, Bao ST, Kaiyasuan C, Li K, Chae S, Yi A, Joy S, Harrison K, Kim JY, Pallini F, Beverina L, Graham KR, Nuckolls C, Nguyen TQ. Air-Stable Perylene Diimide Trimer Material for N-Type Organic Electrochemical Transistors. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2312254. [PMID: 38521992 DOI: 10.1002/adma.202312254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 03/18/2024] [Indexed: 03/25/2024]
Abstract
A new method is reported to make air-stable n-type organic mixed ionic-electronic conductor (OMIEC) films for organic electrochemical transistors (OECTs) using a solution-processable small molecule helical perylene diimide trimer, hPDI[3]-C11. Alkyl side chains are attached to the conjugated core for processability and film making, which are then cleaved via thermal annealing. After the sidechains are removed, the hPDI[3] film becomes less hydrophobic, more ordered, and has a deeper lowest unoccupied molecular orbital (LUMO). These features provide improved ionic transport, greater electronic mobility, and increased stability in air and in aqueous solution. Subsequently, hPDI[3]-H is used as the active material in OECTs and a device with a transconductance of 44 mS, volumetric capacitance of ≈250 F cm-3, µC* value of 1 F cm-1 V-1 s-1, and excellent stability (> 5 weeks) is demonstrated. As proof of their practical applications, a hPDI[3]-H-based OECTs as a glucose sensor and electrochemical inverter is utilized. The approach of side chain removal after film formation charts a path to a wide range of molecular semiconductors to be used as stable, mixed ionic-electronic conductors.
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Affiliation(s)
- Tung Nguyen-Dang
- Center for Polymers and Organic Solids, University of California at Santa Barbara, Santa Barbara, CA 93117, USA
- College of Engineering and Computer Science (CECS) and Center for Environmental Intelligence, VinUniversity, Gia-Lam, Hanoi, 12400, Vietnam
| | - Si Tong Bao
- Department of Chemistry, University of Columbia, New York, NY 10027, USA
| | - Chokchai Kaiyasuan
- Center for Polymers and Organic Solids, University of California at Santa Barbara, Santa Barbara, CA 93117, USA
| | - Kunyu Li
- Center for Polymers and Organic Solids, University of California at Santa Barbara, Santa Barbara, CA 93117, USA
| | - Sangmin Chae
- Center for Polymers and Organic Solids, University of California at Santa Barbara, Santa Barbara, CA 93117, USA
| | - Ahra Yi
- Center for Polymers and Organic Solids, University of California at Santa Barbara, Santa Barbara, CA 93117, USA
| | - Syed Joy
- Department of Chemistry, University of Kentucky, Lexington, KY, 40506, USA
| | - Kelsey Harrison
- Department of Chemistry, University of Columbia, New York, NY 10027, USA
| | - Jae Young Kim
- Center for Polymers and Organic Solids, University of California at Santa Barbara, Santa Barbara, CA 93117, USA
| | - Francesca Pallini
- Center for Polymers and Organic Solids, University of California at Santa Barbara, Santa Barbara, CA 93117, USA
- Department of Materials Science, State University of Milano-Bicocca, Via Cozzi 55, Milano, I-20126, Italy
| | - Luca Beverina
- Department of Materials Science, State University of Milano-Bicocca, Via Cozzi 55, Milano, I-20126, Italy
| | - Kenneth R Graham
- Department of Chemistry, University of Kentucky, Lexington, KY, 40506, USA
| | - Colin Nuckolls
- Department of Chemistry, University of Columbia, New York, NY 10027, USA
| | - Thuc-Quyen Nguyen
- Center for Polymers and Organic Solids, University of California at Santa Barbara, Santa Barbara, CA 93117, USA
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16
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Quek G, Ohayon D, Ng PR, Bazan GC. A Cross-linked n-Type Conjugated Polymer with Polar Side Chains Enables Ultrafast Pseudocapacitive Energy Storage. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2401395. [PMID: 38497830 DOI: 10.1002/smll.202401395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Indexed: 03/19/2024]
Abstract
Pseudocapacitors bridge the performance gap between batteries and electric double-layer capacitors by storing energy via a combination of fast surface/near-surface Faradaic redox processes and electrical double-layer capacitance. Organic semiconductors are an emerging class of pseudocapacitive materials that benefit from facile synthetic tunability and mixed ionic-electronic conduction. Reported examples are mostly limited to p-type (electron-donating) conjugated polymers, while n-type (electron-accepting) examples remain comparatively underexplored. This work introduces a new cross-linked n-type conjugated polymer, spiro-NDI-N, strategically designed with polar tertiary amine side chains. This molecular design aims to synergistically increase the electroactive surface area and boost ion transport for efficient ionic-electronic coupling. Spiro-NDI-N demonstrates excellent pseudocapacitive energy storage performance in pH-neutral aqueous electrolytes, with specific capacitance values of up to 532 F g-1 at 5 A g-1 and stable cycling over 5000 cycles. Moreover, it maintains a rate capability of 307 F g-1 at 350 A g-1. The superior pseudocapacitive performance of spiro-NDI-N, compared to strategically designed structural analogues lacking either the cross-linked backbone or polar side chains, validates the essential role of its molecular design elements. More broadly, the design and performance of spiro-NDI-N provide a novel strategy for developing high-performance organic pseudocapacitors.
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Affiliation(s)
- Glenn Quek
- Institute for Functional Intelligent Materials (I-FIM), National University of Singapore, Singapore, 117544, Singapore
- Departments of Chemistry and Chemical & Biomolecular Engineering, National University of Singapore, Singapore, 119077, Singapore
| | - David Ohayon
- Institute for Functional Intelligent Materials (I-FIM), National University of Singapore, Singapore, 117544, Singapore
- Departments of Chemistry and Chemical & Biomolecular Engineering, National University of Singapore, Singapore, 119077, Singapore
| | - Pei Rou Ng
- Institute for Functional Intelligent Materials (I-FIM), National University of Singapore, Singapore, 117544, Singapore
- Department of Materials Science & Engineering, National University of Singapore, Singapore, 117575, Singapore
| | - Guillermo C Bazan
- Institute for Functional Intelligent Materials (I-FIM), National University of Singapore, Singapore, 117544, Singapore
- Departments of Chemistry and Chemical & Biomolecular Engineering, National University of Singapore, Singapore, 119077, Singapore
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17
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Li J, Wang C, Su J, Liu Z, Fan H, Wang C, Li Y, He Y, Chen N, Cao J, Chen X. Observing Proton-Electron Mixed Conductivity in Graphdiyne. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2400950. [PMID: 38581284 DOI: 10.1002/adma.202400950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 03/22/2024] [Indexed: 04/08/2024]
Abstract
Mixed conducting materials with both ionic and electronic conductivities have gained prominence in emerging applications. However, exploring material with on-demand ionic and electronic conductivities remains challenging, primarily due to the lack of correlating macroscopic conductivity with atom-scale structure. Here, the correlation of proton-electron conductivity and atom-scale structure in graphdiyne is explored. Precisely adjusting the conjugated diynes and oxygenic functional groups in graphdiyne yields a tunable proton-electron conductivity on the order of 103. In addition, a wet-chemistry lithography technique for uniform preparation of graphdiyne on flexible substrates is provided. Utilizing the proton-electron conductivity and mechanical tolerance of graphdiyne, bimodal flexible devices serving as capacitive switches and resistive sensors are created. As a proof-of-concept, a breath-machine interface for sentence-based communication and self-nursing tasks with an accuracy of 98% is designed. This work represents an important step toward understanding the atom-scale structure-conductivity relationship and extending the applications of mixed conducting materials to assistive technology.
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Affiliation(s)
- Jiaofu Li
- Innovative Centre for Flexible Devices (iFLEX), Max Planck-NTU Joint Lab for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Cong Wang
- Innovative Centre for Flexible Devices (iFLEX), Max Planck-NTU Joint Lab for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Jiangtao Su
- Innovative Centre for Flexible Devices (iFLEX), Max Planck-NTU Joint Lab for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Zhihua Liu
- Institute of Materials Research and Engineering (IMRE), The Agency for Science, Technology and Research, Singapore, 138634, Singapore
| | - Hangming Fan
- Innovative Centre for Flexible Devices (iFLEX), Max Planck-NTU Joint Lab for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Changxian Wang
- Innovative Centre for Flexible Devices (iFLEX), Max Planck-NTU Joint Lab for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Yanzhen Li
- Innovative Centre for Flexible Devices (iFLEX), Max Planck-NTU Joint Lab for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Yongli He
- Innovative Centre for Flexible Devices (iFLEX), Max Planck-NTU Joint Lab for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Nuan Chen
- Innovative Centre for Flexible Devices (iFLEX), Max Planck-NTU Joint Lab for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Jinwei Cao
- Innovative Centre for Flexible Devices (iFLEX), Max Planck-NTU Joint Lab for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Xiaodong Chen
- Innovative Centre for Flexible Devices (iFLEX), Max Planck-NTU Joint Lab for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
- Institute for Digital Molecular Analytics and Science (IDMxS), Nanyang Technological University, 59 Nanyang Drive, Singapore, 636921, Singapore
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18
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Lee KK, Celt N, Ardoña HAM. Looking both ways: Electroactive biomaterials with bidirectional implications for dynamic cell-material crosstalk. BIOPHYSICS REVIEWS 2024; 5:021303. [PMID: 38736681 PMCID: PMC11087870 DOI: 10.1063/5.0181222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 04/15/2024] [Indexed: 05/14/2024]
Abstract
Cells exist in natural, dynamic microenvironmental niches that facilitate biological responses to external physicochemical cues such as mechanical and electrical stimuli. For excitable cells, exogenous electrical cues are of interest due to their ability to stimulate or regulate cellular behavior via cascade signaling involving ion channels, gap junctions, and integrin receptors across the membrane. In recent years, conductive biomaterials have been demonstrated to influence or record these electrosensitive biological processes whereby the primary design criterion is to achieve seamless cell-material integration. As such, currently available bioelectronic materials are predominantly engineered toward achieving high-performing devices while maintaining the ability to recapitulate the local excitable cell/tissue microenvironment. However, such reports rarely address the dynamic signal coupling or exchange that occurs at the biotic-abiotic interface, as well as the distinction between the ionic transport involved in natural biological process and the electronic (or mixed ionic/electronic) conduction commonly responsible for bioelectronic systems. In this review, we highlight current literature reports that offer platforms capable of bidirectional signal exchange at the biotic-abiotic interface with excitable cell types, along with the design criteria for such biomaterials. Furthermore, insights on current materials not yet explored for biointerfacing or bioelectronics that have potential for bidirectional applications are also provided. Finally, we offer perspectives aimed at bringing attention to the coupling of the signals delivered by synthetic material to natural biological conduction mechanisms, areas of improvement regarding characterizing biotic-abiotic crosstalk, as well as the dynamic nature of this exchange, to be taken into consideration for material/device design consideration for next-generation bioelectronic systems.
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Affiliation(s)
- Kathryn Kwangja Lee
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, California 92697, USA
| | - Natalie Celt
- Department of Biomedical Engineering, University of California, Irvine, California 92697, USA
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19
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Pan T, Jiang X, van Doremaele ERW, Li J, van der Pol TPA, Yan C, Ye G, Liu J, Hong W, Chiechi RC, de Burgt YV, Zhang Y. Over 60 h of Stable Water-Operation for N-Type Organic Electrochemical Transistors with Fast Response and Ambipolarity. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2400872. [PMID: 38810112 DOI: 10.1002/advs.202400872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 03/28/2024] [Indexed: 05/31/2024]
Abstract
Organic electrochemical transistors (OECTs) are of great interest in low-power bioelectronics and neuromorphic computing, as they utilize organic mixed ionic-electronic conductors (OMIECs) to transduce ionic signals into electrical signals. However, the poor environmental stability of OMIEC materials significantly restricts the practical application of OECTs. Therefore, the non-fused planar naphthalenediimide (NDI)-dialkoxybithiazole (2Tz) copolymers are fine-tuned through varying ethylene glycol (EG) side chain lengths from tri(ethylene glycol) to hexa(ethylene glycol) (namely P-XO, X = 3-6) to achieve OECTs with high-stability and low threshold voltage. As a result, the NDI-2Tz copolymers exhibit ambipolarity, rapid response (<10 ms), and ultra-high n-type stability. Notably, the P-6O copolymers display a threshold voltage as low as 0.27 V. They can operate in n-type mode in an aqueous solution for over 60 h, maintaining an on-off ratio of over 105. This work sheds light on the design of exceptional n-type/ambipolar materials for OECTs. It demonstrates the potential of incorporating these ambipolar polymers into water-operational integrated circuits for long-term biosensing systems and energy-efficient brain-inspired computing.
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Affiliation(s)
- Tao Pan
- The Institute of Flexible Electronics (IFE, Future Technologies) & IKKEM & State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, P. R. China
| | - Xinnian Jiang
- The Institute of Flexible Electronics (IFE, Future Technologies) & IKKEM & State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, P. R. China
| | - Eveline R W van Doremaele
- Microsystems, Department of Mechanical Engineering & Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
| | - Junyu Li
- Sinopec Shanghai Research Institute of Petrochemical Technology, Shanghai, 201028, P. R. China
| | - Tom P A van der Pol
- Molecular Materials and Nanosystems & Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
| | - Chenshuai Yan
- The Institute of Flexible Electronics (IFE, Future Technologies) & IKKEM & State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, P. R. China
| | - Gang Ye
- Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Youyi Road 368, Wuhan, 430062, P. R. China
| | - Jian Liu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China
| | - Wenjing Hong
- The Institute of Flexible Electronics (IFE, Future Technologies) & IKKEM & State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, P. R. China
| | - Ryan C Chiechi
- Department of Chemistry & Organic and Carbon Electronics Cluster, North Carolina State University, Raleigh, NC, 27695-8204, USA
| | - Yoeri van de Burgt
- Microsystems, Department of Mechanical Engineering & Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
| | - Yanxi Zhang
- The Institute of Flexible Electronics (IFE, Future Technologies) & IKKEM & State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, P. R. China
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20
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Gregorio T, Mombrú D, Romero M, Faccio R, Mombrú ÁW. Exploring Mixed Ionic-Electronic-Conducting PVA/PEDOT:PSS Hydrogels as Channel Materials for Organic Electrochemical Transistors. Polymers (Basel) 2024; 16:1478. [PMID: 38891425 PMCID: PMC11174747 DOI: 10.3390/polym16111478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 05/16/2024] [Accepted: 05/20/2024] [Indexed: 06/21/2024] Open
Abstract
Here, we report the preparation and evaluation of PVA/PEDOT:PSS-conducting hydrogels working as channel materials for OECT applications, focusing on the understanding of their charge transport and transfer properties. Our conducting hydrogels are based on crosslinked PVA with PEDOT:PSS interacting via hydrogen bonding and exhibit an excellent swelling ratio of ~180-200% w/w. Our electrochemical impedance studies indicate that the charge transport and transfer processes at the channel material based on conducting hydrogels are not trivial compared to conducting polymeric films. The most relevant feature is that the ionic transport through the swollen hydrogel is clearly different from the transport through the solution, and the charge transfer and diffusion processes govern the low-frequency regime. In addition, we have performed in operando Raman spectroscopy analyses in the OECT devices supported by first-principle computational simulations corroborating the doping/de-doping processes under different applied gate voltages. The maximum transconductance (gm~1.05 μS) and maximum volumetric capacitance (C*~2.3 F.cm-3) values indicate that these conducting hydrogels can be promising candidates as channel materials for OECT devices.
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Affiliation(s)
| | - Dominique Mombrú
- Centro NanoMat & Área Física, Departamento de Experimentación y Teoría de la Estructura de la Materia y sus Aplicaciones (DETEMA), Facultad de Química, Universidad de la República, Montevideo 11800, Uruguay; (T.G.); (R.F.)
| | - Mariano Romero
- Centro NanoMat & Área Física, Departamento de Experimentación y Teoría de la Estructura de la Materia y sus Aplicaciones (DETEMA), Facultad de Química, Universidad de la República, Montevideo 11800, Uruguay; (T.G.); (R.F.)
| | | | - Álvaro W. Mombrú
- Centro NanoMat & Área Física, Departamento de Experimentación y Teoría de la Estructura de la Materia y sus Aplicaciones (DETEMA), Facultad de Química, Universidad de la República, Montevideo 11800, Uruguay; (T.G.); (R.F.)
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21
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Cuttaz EA, Bailey ZK, Chapman CAR, Goding JA, Green RA. Polymer Bioelectronics: A Solution for Both Stimulating and Recording Electrodes. Adv Healthc Mater 2024:e2304447. [PMID: 38775757 DOI: 10.1002/adhm.202304447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 03/31/2024] [Indexed: 06/01/2024]
Abstract
The advent of closed-loop bionics has created a demand for electrode materials that are ideal for both stimulating and recording applications. The growing complexity and diminishing size of implantable devices for neural interfaces have moved beyond what can be achieved with conventional metallic electrode materials. Polymeric electrode materials are a recent development based on polymer composites of organic conductors such as conductive polymers. These materials present exciting new opportunities in the design and fabrication of next-generation electrode arrays which can overcome the electrochemical and mechanical limitations of conventional electrode materials. This review will examine the recent developments in polymeric electrode materials, their application as stimulating and recording electrodes in bionic devices, and their impact on the development of soft, conformal, and high-density neural interfaces.
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Affiliation(s)
- Estelle A Cuttaz
- Department of Bioengineering, Imperial College London, London, SW7 2BX, UK
| | - Zachary K Bailey
- Department of Bioengineering, Imperial College London, London, SW7 2BX, UK
| | - Christopher A R Chapman
- Department of Bioengineering, Imperial College London, London, SW7 2BX, UK
- School of Engineering and Materials Science, Queen Mary University of London, London, E1 4NS, UK
| | - Josef A Goding
- Department of Bioengineering, Imperial College London, London, SW7 2BX, UK
| | - Rylie A Green
- Department of Bioengineering, Imperial College London, London, SW7 2BX, UK
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22
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Kimpel J, Kim Y, Asatryan J, Martín J, Kroon R, Müller C. High-mobility organic mixed conductors with a low synthetic complexity index via direct arylation polymerization. Chem Sci 2024; 15:7679-7688. [PMID: 38784738 PMCID: PMC11110131 DOI: 10.1039/d4sc01430h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 04/18/2024] [Indexed: 05/25/2024] Open
Abstract
Through direct arylation polymerization, a series of mixed ion-electron conducting polymers with a low synthetic complexity index is synthesized. A thieno[3,2-b]thiophene monomer with oligoether side chains is used in direct arylation polymerization together with a wide range of aryl bromides with varying electronic character from electron-donating thiophene to electron-accepting benzothiadiazole. The obtained polymers are less synthetically complex than other mixed ion-electron conducting polymers due to higher yield, fewer synthetic steps and less toxic reagents. Organic electrochemical transistors (OECTs) based on a newly synthesized copolymer comprising thieno[3,2-b]thiophene with oligoether side chains and bithiophene exhibit excellent device performance. A high charge-carrier mobility of up to μ = 1.8 cm2 V-1 s-1 was observed, obtained by dividing the figure of merit [μC*] from OECT measurements by the volumetric capacitance C* from electrochemical impedance spectroscopy, which reached a value of more than 215 F cm-3.
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Affiliation(s)
- Joost Kimpel
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology 412 96 Göteborg Sweden
| | - Youngseok Kim
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology 412 96 Göteborg Sweden
| | - Jesika Asatryan
- Universidade da Coruña, Campus Industrial de Ferrol, CITENI Esteiro 15403 Ferrol Spain
| | - Jaime Martín
- Universidade da Coruña, Campus Industrial de Ferrol, CITENI Esteiro 15403 Ferrol Spain
| | - Renee Kroon
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University Norrköping Sweden
- Wallenberg Initiative Materials Science for Sustainability, Department of Science and Technology, Linköping University Norrköping Sweden
| | - Christian Müller
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology 412 96 Göteborg Sweden
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23
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Gryszel M, Jakešová M, Vu XT, Ingebrandt S, Głowacki ED. Elevating Platinum to Volumetric Capacitance: High Surface Area Electrodes through Reactive Pt Sputtering. Adv Healthc Mater 2024:e2302400. [PMID: 38758352 DOI: 10.1002/adhm.202302400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 05/14/2024] [Indexed: 05/18/2024]
Abstract
Platinum is the most widespread electrode material used for implantable biomedical and neuroelectronic devices, motivating exploring ways to improve its performance and understand its fundamental properties. Using reactive magnetron sputtering, PtOx is prepared, which upon partial reduction yields a porous thin-film form of platinum with favorable properties, notably record-low impedance values outcompeting other reports for platinum-based electrodes. It is established that its high electrochemical capacitance scales with thickness, in the way of volumetric capacitor materials like IrOx and poly(3,4-ethylenedioxythiophene), PEDOT. Unlike these two well-known analogs, however, it is found that PtOx capacitance is not caused by reversible pseudofaradaic reactions but rather due to high surface area. In contrast to IrOx, PtOx is not a reversible valence-change oxide, but rather a porous form of platinum. The findings show that this oxygen-containing form of Pt can place Pt electrodes on a level competitive with IrOx and PEDOT. Due to its relatively low cost and ease of preparation, PtOx can be a good choice for microfabricated bioelectronic devices.
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Affiliation(s)
- Maciej Gryszel
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Bredgatan 33, Norrköping, 60174, Sweden
| | - Marie Jakešová
- Bioelectronics Materials and Devices Laboratory, Central European Institute of Technology, Brno University of Technology, Purkyňova 123, Brno, 61200, Czech Republic
| | - Xuan Thang Vu
- Institute of Materials in Electrical Engineering 1, RWTH Aachen University, 52074, Aachen, Germany
| | - Sven Ingebrandt
- Institute of Materials in Electrical Engineering 1, RWTH Aachen University, 52074, Aachen, Germany
| | - Eric Daniel Głowacki
- Bioelectronics Materials and Devices Laboratory, Central European Institute of Technology, Brno University of Technology, Purkyňova 123, Brno, 61200, Czech Republic
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24
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Baek SW, Salamat CZ, Elizalde-Segovia R, Das P, Frajnkovič M, Zhou Y, Thompson BC, Narayan SR, Tolbert SH, Pilon L. Measuring Heat Dissipation and Entropic Potential in Battery Cathodes Made with Conjugated and Conventional Polymer Binders Using Operando Calorimetry. ACS APPLIED POLYMER MATERIALS 2024; 6:4954-4963. [PMID: 38752015 PMCID: PMC11091854 DOI: 10.1021/acsapm.3c02751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 04/09/2024] [Accepted: 04/15/2024] [Indexed: 05/18/2024]
Abstract
This study explores the influence of electronic and ionic conductivities on the behavior of conjugated polymer binders through the measurement of entropic potential and heat generation in an operating lithium-ion battery. Specifically, the traditional poly(vinylidene fluoride) (PVDF) binder in LiNi0.8Co0.15Al0.05O2 (NCA) cathode electrodes was replaced with semiconducting polymer binders based on poly(3,4-propylenedioxythiophene). Two conjugated polymers were explored: one is a homopolymer with all aliphatic side chains, and the other is a copolymer with both aliphatic and ethylene oxide side chains. We have shown previously that both polymers have high electronic conductivity in the potential range of NCA redox, but the copolymer has a higher ionic conductivity and a slightly lower electronic conductivity. Entropic potential measurements during battery cycling revealed consistent trends during delithiation for all of the binders, indicating that the binders did not modify the expected NCA solid solution deintercalation process. The entropic signature of polymer doping to form the conductive state could be clearly observed at potentials below NCA oxidation, however. Operando isothermal calorimetric measurements showed that the conductive binders resulted in less Joule heating compared to PVDF and that the net electrical energy was entirely dissipated as heat. In a comparison of the two conjugated polymer binders, the heat dissipation was lower for the homopolymer binder at lower C-rates, suggesting that electronic conductivity rather than ionic conductivity was the most important for reducing Joule heating at lower rates, but that ionic conductivity became more important at higher rates.
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Affiliation(s)
- Sun Woong Baek
- Mechanical
and Aerospace Engineering Department, Henry Samueli School of Engineering
and Applied Science, University of California,
Los Angeles, Los Angeles, California 90095, United States
| | - Charlene Z. Salamat
- Department
of Chemistry and Biochemistry, University
of California, Los Angeles, Los
Angeles, California 90095, United States
| | - Rodrigo Elizalde-Segovia
- Department
of Chemistry and Loker Hydrocarbon Research Institute, University of Southern California, Los Angeles, California 90089, United States
| | - Pratyusha Das
- Department
of Chemistry and Loker Hydrocarbon Research Institute, University of Southern California, Los Angeles, California 90089, United States
| | - Matevž Frajnkovič
- Mechanical
and Aerospace Engineering Department, Henry Samueli School of Engineering
and Applied Science, University of California,
Los Angeles, Los Angeles, California 90095, United States
| | - Yucheng Zhou
- Mechanical
and Aerospace Engineering Department, Henry Samueli School of Engineering
and Applied Science, University of California,
Los Angeles, Los Angeles, California 90095, United States
| | - Barry C. Thompson
- Department
of Chemistry and Loker Hydrocarbon Research Institute, University of Southern California, Los Angeles, California 90089, United States
| | - Sri R. Narayan
- Department
of Chemistry and Loker Hydrocarbon Research Institute, University of Southern California, Los Angeles, California 90089, United States
| | - Sarah H. Tolbert
- Department
of Chemistry and Biochemistry, University
of California, Los Angeles, Los
Angeles, California 90095, United States
- Department
of Materials Science and Engineering, University
of California, Los Angeles, Los
Angeles, California 90095, United States
- California
NanoSystems Institute, University of California,
Los Angeles, Los Angeles, California 90095, United States
| | - Laurent Pilon
- Mechanical
and Aerospace Engineering Department, Henry Samueli School of Engineering
and Applied Science, University of California,
Los Angeles, Los Angeles, California 90095, United States
- California
NanoSystems Institute, University of California,
Los Angeles, Los Angeles, California 90095, United States
- Institute
of the Environment and Sustainability, University
of California, Los Angeles, Los
Angeles, California 90095, United States
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25
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Nandi AK. A Review on Self-Assembly Driven Optoelectronic Properties of Polythiophene-Peptide and Polythiophene-Polymer Conjugates. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:9385-9405. [PMID: 38682339 DOI: 10.1021/acs.langmuir.4c00713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
Polythiophene (PT) is an important conducting polymer for its outstanding optoelectronic properties. Here, we delineate the self-assembly-driven optoelectronic properties of PT-peptide and PT-polymer conjugates, taking examples from recent literature reports. PT-peptide conjugates made by both covalent and noncovalent approaches are discussed. Poly(3-thiophene acetic acid) (P3TAA) covalently coupled with Gly-Gly-His tripeptide, C-protected and deprotected tripeptide H2N-F-F-V-OMe, etc. exhibits self-assembly-driven absorbance, fluorescence, photocurrent, and electronic properties. Noncovalent PT-peptide conjugates produced via ionic, H-bonding, and π-stacking interactions show tunable morphology and optoelectronic properties by varying the composition of a component. PT conjugated with Alzheimer's disease peptide (KLVFFAE, Aβ16-22) shows enhanced photocatalytic water splitting, cationic PT(CPT-I)-perylene bisimide-appended dipeptide (PBI-DY), and anionic PT-perylene diimide-appended cationic peptide (PBI-NH3+) conjugates and exhibits self-assembly-driven enhanced photoswitching and organic mixed electronic and ionic conductivity (OMEIC) properties. In the PT-polymer conjugates, self-assembly-driven optoelectronic properties of covalently produced PT-random copolymers, PT-block copolymers, PT-graft-random copolymers, and PT-graft-block copolymer conjugates are discussed. The HOMO-LUMO levels of hyperbranched polymers are optimized to obtain better power conversion efficiency (PCE) in the bulk heterojunction (BHJ) solar cell than in linear polymers, and P3TAA-ran-P3HT (43 mol % P3TAA) conjugated with MAPbI3 perovskite exhibits higher PCE (10%) than that with only P3TAA hole-transporting material. In the ampholytic polythiophene (APT), on increasing pH, the morphology changes from the vesicle to fibrillar network for the dethreading of the PT chain, resulting in a red shift of the absorbance peak, an enormous increase in PL intensity, lowering of the charge transfer resistance, and an induction of Warburg impedance for the release of quencher I- ions. The PT-g-(PDMAEMA-co-PGLU-HEM) graft copolymer self-assembles with Con-A lectin, causing fluorescence quenching, and acts as a sensor for Con-A with a LOD of 57 mg/L. Varying sequences of the block copolymer containing pH-responsive PDMAEMA and temperature-responsive PDEGMEM grafted to the PT backbone shows different self-assembly, optical, electronic, and photocurrent properties depending on the proximity and preponderance of the block sequence on the PT backbone.
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Affiliation(s)
- Arun K Nandi
- Polymer Science Unit, School of Materials Science, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
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26
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Guo J, Chen SE, Giridharagopal R, Bischak CG, Onorato JW, Yan K, Shen Z, Li CZ, Luscombe CK, Ginger DS. Understanding asymmetric switching times in accumulation mode organic electrochemical transistors. NATURE MATERIALS 2024; 23:656-663. [PMID: 38632374 DOI: 10.1038/s41563-024-01875-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 03/19/2024] [Indexed: 04/19/2024]
Abstract
Understanding the factors underpinning device switching times is crucial for the implementation of organic electrochemical transistors in neuromorphic computing, bioelectronics and real-time sensing applications. Existing models of device operation cannot explain the experimental observations that turn-off times are generally much faster than turn-on times in accumulation mode organic electrochemical transistors. Here, using operando optical microscopy, we image the local doping level of the transistor channel and show that turn-on occurs in two stages-propagation of a doping front, followed by uniform doping-while turn-off occurs in one stage. We attribute the faster turn-off to a combination of engineering as well as physical and chemical factors including channel geometry, differences in doping and dedoping kinetics and the phenomena of carrier-density-dependent mobility. We show that ion transport limits the operation speed in our devices. Our study provides insights into the kinetics of organic electrochemical transistors and guidelines for engineering faster organic electrochemical transistors.
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Affiliation(s)
- Jiajie Guo
- Molecular Engineering and Sciences Institute, University of Washington, Seattle, WA, USA
| | - Shinya E Chen
- Molecular Engineering and Sciences Institute, University of Washington, Seattle, WA, USA
| | | | - Connor G Bischak
- Department of Chemistry, University of Washington, Seattle, WA, USA
| | - Jonathan W Onorato
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, USA
| | - Kangrong Yan
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, P. R. China
| | - Ziqiu Shen
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, P. R. China
| | - Chang-Zhi Li
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, P. R. China
| | - Christine K Luscombe
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, USA
- pi-Conjugated Polymers Unit, Okinawa Institute of Science and Technology Graduate University, Onna-son, Japan
| | - David S Ginger
- Department of Chemistry, University of Washington, Seattle, WA, USA.
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27
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Dominguez-Alfaro A, Casado N, Fernandez M, Garcia-Esnaola A, Calvo J, Mantione D, Calvo MR, Cortajarena AL. Engineering Proteins for PEDOT Dispersions: A New Horizon for Highly Mixed Ionic-Electronic Biocompatible Conducting Materials. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2307536. [PMID: 38126666 DOI: 10.1002/smll.202307536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 11/28/2023] [Indexed: 12/23/2023]
Abstract
Poly (3,4-ethylenedioxythiophene) (PEDOT) doped with polystyrene sulfonate (PSS) is the most used conducting polymer from energy to biomedical applications. Despite its exceptional properties, there is a need for developing new materials that can improve some of its inherent limitations, e.g., biocompatibility. In this context, doping PEDOT is propose with a robust recombinant protein with tunable properties, the consensus tetratricopeptide repeated protein (CTPR). The doping consists of an oxidative polymerization, where the PEDOT chains are stabilized by the negative charges of the CTPR protein. CTPR proteins are evaluated with three different lengths (3, 10, and 20 identical CTPR units) and optimized varied synthetic conditions. These findings revealed higher doping rate and oxidized state of the PEDOT chains when doped with the smallest scaffold (CTPR3). These PEDOT:CTPR hybrids possess ionic and electronic conductivity. Notably, PEDOT:CTPR3 displayed an electronic conductivity of 0.016 S cm-1, higher than any other reported protein-doped PEDOT. This result places PEDOT:CTPR3 at the level of PEDOT-biopolymer hybrids, and brings it closer in performance to PEDOT:PSS gold standard. Furthermore, PEDOT:CTPR3 dispersion is successfully optimized for inkjet printing, preserving its electroactivity properties after printing. This approach opens the door to the use of these novel hybrids for bioelectronics.
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Affiliation(s)
- Antonio Dominguez-Alfaro
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramón 194, Donostia-San Sebastián, 20014, Spain
| | - Nerea Casado
- POLYMAT, University of the Basque Country UPV/EHU, Donostia-San Sebastian, 20018, Spain
- Ikerbasque, Basque Foundation for Science, Bilbao, 48009, Spain
| | - Maxence Fernandez
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramón 194, Donostia-San Sebastián, 20014, Spain
| | - Andrea Garcia-Esnaola
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramón 194, Donostia-San Sebastián, 20014, Spain
| | - Javier Calvo
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramón 194, Donostia-San Sebastián, 20014, Spain
| | - Daniele Mantione
- POLYMAT, University of the Basque Country UPV/EHU, Donostia-San Sebastian, 20018, Spain
- Ikerbasque, Basque Foundation for Science, Bilbao, 48009, Spain
| | - Maria Reyes Calvo
- Departamento de Física Aplicada, Universidad de Alicante, Alicante, 03690, Spain
- Instituto Universitario de Materiales de Alicante (IUMA), Universidad de Alicante, Alicante, 03690, Spain
| | - Aitziber L Cortajarena
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramón 194, Donostia-San Sebastián, 20014, Spain
- Ikerbasque, Basque Foundation for Science, Bilbao, 48009, Spain
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28
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Yu H, Nelson J. Slow on, fast off. NATURE MATERIALS 2024; 23:585-586. [PMID: 38702547 DOI: 10.1038/s41563-024-01885-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2024]
Affiliation(s)
- Hang Yu
- Department of Physics and Centre for Processable Electronics, Imperial College London, London, UK
| | - Jenny Nelson
- Department of Physics and Centre for Processable Electronics, Imperial College London, London, UK.
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29
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Organic mixed ionic-electronic conductors progress at pace. NATURE MATERIALS 2024; 23:577. [PMID: 38702548 DOI: 10.1038/s41563-024-01902-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2024]
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30
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Song J, Liu H, Zhao Z, Lin P, Yan F. Flexible Organic Transistors for Biosensing: Devices and Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2300034. [PMID: 36853083 DOI: 10.1002/adma.202300034] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 02/20/2023] [Indexed: 06/18/2023]
Abstract
Flexible and stretchable biosensors can offer seamless and conformable biological-electronic interfaces for continuously acquiring high-fidelity signals, permitting numerous emerging applications. Organic thin film transistors (OTFTs) are ideal transducers for flexible and stretchable biosensing due to their soft nature, inherent amplification function, biocompatibility, ease of functionalization, low cost, and device diversity. In consideration of the rapid advances in flexible-OTFT-based biosensors and their broad applications, herein, a timely and comprehensive review is provided. It starts with a detailed introduction to the features of various OTFTs including organic field-effect transistors and organic electrochemical transistors, and the functionalization strategies for biosensing, with a highlight on the seminal work and up-to-date achievements. Then, the applications of flexible-OTFT-based biosensors in wearable, implantable, and portable electronics, as well as neuromorphic biointerfaces are detailed. Subsequently, special attention is paid to emerging stretchable organic transistors including planar and fibrous devices. The routes to impart stretchability, including structural engineering and material engineering, are discussed, and the implementations of stretchable organic transistors in e-skin and smart textiles are included. Finally, the remaining challenges and the future opportunities in this field are summarized.
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Affiliation(s)
- Jiajun Song
- Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, 999077, P. R. China
| | - Hong Liu
- Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, 999077, P. R. China
| | - Zeyu Zhao
- Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, 999077, P. R. China
| | - Peng Lin
- Shenzhen Key Laboratory of Special Functional Materials and Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Feng Yan
- Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, 999077, P. R. China
- Research Institute of Intelligent Wearable Systems, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, 999077, P. R. China
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31
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Wu R, Meli D, Strzalka J, Narayanan S, Zhang Q, Paulsen BD, Rivnay J, Takacs CJ. Bridging length scales in organic mixed ionic-electronic conductors through internal strain and mesoscale dynamics. NATURE MATERIALS 2024; 23:648-655. [PMID: 38409601 DOI: 10.1038/s41563-024-01813-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 01/18/2024] [Indexed: 02/28/2024]
Abstract
Understanding the structural and dynamic properties of disordered systems at the mesoscale is crucial. This is particularly important in organic mixed ionic-electronic conductors (OMIECs), which undergo significant and complex structural changes when operated in an electrolyte. In this study, we investigate the mesoscale strain, reversibility and dynamics of a model OMIEC material under external electrochemical potential using operando X-ray photon correlation spectroscopy. Our results reveal that strain and structural hysteresis depend on the sample's cycling history, establishing a comprehensive kinetic sequence bridging the macroscopic and microscopic behaviours of OMIECs. Furthermore, we uncover the equilibrium and non-equilibrium dynamics of charge carriers and material-doping states, highlighting the unexpected coupling between charge carrier dynamics and mesoscale order. These findings advance our understanding of the structure-dynamics-function relationships in OMIECs, opening pathways for designing and engineering materials with improved performance and functionality in non-equilibrium states during device operation.
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Affiliation(s)
- Ruiheng Wu
- Department of Chemistry, Northwestern University, Evanston, IL, USA
| | - Dilara Meli
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, USA
| | - Joseph Strzalka
- X-ray Science Division, Argonne National Laboratory, Lemont, IL, USA
| | - Suresh Narayanan
- X-ray Science Division, Argonne National Laboratory, Lemont, IL, USA
| | - Qingteng Zhang
- X-ray Science Division, Argonne National Laboratory, Lemont, IL, USA
| | - Bryan D Paulsen
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, USA
| | - Jonathan Rivnay
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, USA.
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, USA.
| | - Christopher J Takacs
- Hard X-ray Material Science Division, Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, USA.
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32
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Bonafè F, Decataldo F, Cramer T, Fraboni B. Ionic Solvent Shell Drives Electroactuation in Organic Mixed Ionic-Electronic Conductors. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2308746. [PMID: 38429898 PMCID: PMC11095215 DOI: 10.1002/advs.202308746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 02/07/2024] [Indexed: 03/03/2024]
Abstract
The conversion of electrochemical processes into mechanical deformation in organic mixed ionic-electronic conductors (OMIECs) enables artificial muscle-like actuators but is also critical for degradation processes affecting OMIEC-based devices. To provide a microscopic understanding of electroactuation, the modulated electrochemical atomic force microscopy (mEC-AFM) is introduced here as a novel in-operando characterization method for electroactive materials. The technique enables multidimensional spectroscopic investigations of local electroactuation and charge uptake giving access to the electroactuation transfer function. For poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) based microelectrodes, the spectroscopic measurements are combined with multichannel mEC-AFM imaging, providing maps of local electroactuation amplitude and phase as well as surface morphology. The results demonstrate that the amplitude and timescales of electroactuation are governed by the drift motion of hydrated ions. Accordingly, slower water diffusion processes are not limiting, and the results illustrate how OMIEC microactuators can operate at sub-millisecond timescales.
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Affiliation(s)
- Filippo Bonafè
- Department of Physics and AstronomyUniversity of BolognaViale Berti Pichat 6/2Bologna40127Italy
| | - Francesco Decataldo
- Department of Physics and AstronomyUniversity of BolognaViale Berti Pichat 6/2Bologna40127Italy
| | - Tobias Cramer
- Department of Physics and AstronomyUniversity of BolognaViale Berti Pichat 6/2Bologna40127Italy
| | - Beatrice Fraboni
- Department of Physics and AstronomyUniversity of BolognaViale Berti Pichat 6/2Bologna40127Italy
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33
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Wu R, Ji X, Ma Q, Paulsen BD, Tropp J, Rivnay J. Direct quantification of ion composition and mobility in organic mixed ionic-electronic conductors. SCIENCE ADVANCES 2024; 10:eadn8628. [PMID: 38657078 PMCID: PMC11042751 DOI: 10.1126/sciadv.adn8628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 03/19/2024] [Indexed: 04/26/2024]
Abstract
Ion transport in organic mixed ionic-electronic conductors (OMIECs) is crucial due to its direct impact on device response time and operating mechanisms but is often assessed indirectly or necessitates extra assumptions. Operando x-ray fluorescence (XRF) is a powerful, direct probe for elemental characterization of bulk OMIECs and was used to directly quantify ion composition and mobility in a model OMIEC, poly(3,4-ethylenedioxythiophene)-poly(styrene sulfonate) (PEDOT:PSS), during device operation. The first cycle revealed slow electrowetting and cation-proton exchange. Subsequent cycles showed rapid response with minor cation fluctuation (~5%). Comparison with optical-tracked electrochromic fronts revealed mesoscale structure-dependent proton transport. The calculated effective ion mobility demonstrated thickness-dependent behavior, emphasizing an interfacial ion transport pathway with a higher mobile ion density. The decoupling of interfacial effects on bulk ion mobility and the decoupling of cation and proton migration elucidate ion transport in conventional and emerging OMIEC-based devices and has broader implications for other ionic conductors writ large.
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Affiliation(s)
- Ruiheng Wu
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Xudong Ji
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Qing Ma
- DND-CAT, Synchrotron Research Center, Northwestern University, Evanston, IL 60208, USA
| | - Bryan D. Paulsen
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Joshua Tropp
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Jonathan Rivnay
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Material Science and Engineering, Northwestern University, Evanston, IL 60611, USA
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34
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Abdel Aziz I, Gladisch J, Musumeci C, Moser M, Griggs S, Kousseff CJ, Berggren M, McCulloch I, Stavrinidou E. Electrochemical modulation of mechanical properties of glycolated polythiophenes. MATERIALS HORIZONS 2024; 11:2021-2031. [PMID: 38372393 DOI: 10.1039/d3mh01827j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
Electrochemical doping of organic mixed ionic-electronic conductors is key for modulating their conductivity, charge storage and volume enabling high performing bioelectronic devices such as recording and stimulating electrodes, transistors-based sensors and actuators. However, electrochemical doping has not been explored to the same extent for modulating the mechanical properties of OMIECs on demand. Here, we report a qualitative and quantitative study on how the mechanical properties of a glycolated polythiophene, p(g3T2), change in situ during electrochemical doping and de-doping. The Young's modulus of p(g3T2) changes from 69 MPa in the dry state to less than 10 MPa in the hydrated state and then further decreases down to 0.4 MPa when electrochemically doped. With electrochemical doping-dedoping the Young's modulus of p(g3T2) changes by more than one order of magnitude reversibly, representing the largest modulation reported for an OMIEC. Furthermore, we show that the electrolyte concentration affects the magnitude of the change, demonstrating that in less concentrated electrolytes more water is driven into the film due to osmosis and therefore the film becomes softer. Finally, we find that the oligo ethylene glycol side chain functionality, specifically the length and asymmetry, affects the extent of modulation. Our findings show that glycolated polythiophenes are promising materials for mechanical actuators with a tunable modulus similar to the range of biological tissues, thus opening a pathway for new mechanostimulation devices.
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Affiliation(s)
- Ilaria Abdel Aziz
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping 601 74, Sweden.
- POLYMAT, University of the Basque Country UPV/EHU, Avenida Tolosa 72, Donostia-San Sebastian, Gipuzkoa 20018, Spain
| | - Johannes Gladisch
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping 601 74, Sweden.
| | - Chiara Musumeci
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping 601 74, Sweden.
| | | | - Sophie Griggs
- Department of Chemistry, Oxford University, Oxford, UK
| | | | - Magnus Berggren
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping 601 74, Sweden.
- Wallenberg Initiative Materials Science for Sustainability, Department of Science and Technology, Linköping University, Norrköping 601 74, Sweden
| | | | - Eleni Stavrinidou
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping 601 74, Sweden.
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35
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Bai J, Liu D, Tian X, Wang Y, Cui B, Yang Y, Dai S, Lin W, Zhu J, Wang J, Xu A, Gu Z, Zhang S. Coin-sized, fully integrated, and minimally invasive continuous glucose monitoring system based on organic electrochemical transistors. SCIENCE ADVANCES 2024; 10:eadl1856. [PMID: 38640241 PMCID: PMC11029813 DOI: 10.1126/sciadv.adl1856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 03/19/2024] [Indexed: 04/21/2024]
Abstract
Continuous glucose monitoring systems (CGMs) are critical toward closed-loop diabetes management. The field's progress urges next-generation CGMs with enhanced antinoise ability, reliability, and wearability. Here, we propose a coin-sized, fully integrated, and wearable CGM, achieved by holistically synergizing state-of-the-art interdisciplinary technologies of biosensors, minimally invasive tools, and hydrogels. The proposed CGM consists of three major parts: (i) an emerging biochemical signal amplifier, the organic electrochemical transistor (OECT), improving the signal-to-noise ratio (SNR) beyond traditional electrochemical sensors; (ii) a microneedle array to facilitate subcutaneous glucose sampling with minimized pain; and (iii) a soft hydrogel to stabilize the skin-device interface. Compared to conventional CGMs, the OECT-CGM offers a high antinoise ability, tunable sensitivity and resolution, and comfort wearability, enabling personalized glucose sensing for future precision diabetes health care. Last, we discuss how OECT technology can help push the limit of detection of current wearable electrochemical biosensors, especially when operating in complicated conditions.
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Affiliation(s)
- Jing Bai
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Dingyao Liu
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Xinyu Tian
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Yan Wang
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Binbin Cui
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Yilin Yang
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Shilei Dai
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Wensheng Lin
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
- School of Biomedical Engineering, Guangzhou Medical University, Guangzhou, China
| | - Jixiang Zhu
- School of Biomedical Engineering, Guangzhou Medical University, Guangzhou, China
| | - Jinqiang Wang
- State Key Laboratory of Advanced Drug Delivery Systems, Key Laboratory of Advanced Drug Delivery Systems of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Aimin Xu
- State Key Laboratory of Pharmaceutical Biotechnology, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Zhen Gu
- State Key Laboratory of Advanced Drug Delivery Systems, Key Laboratory of Advanced Drug Delivery Systems of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
- Jinhua Institute of Zhejiang University, Jinhua, China
| | - Shiming Zhang
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
- State Key Laboratory of Pharmaceutical Biotechnology, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
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36
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Matrone GM, van Doremaele ERW, Surendran A, Laswick Z, Griggs S, Ye G, McCulloch I, Santoro F, Rivnay J, van de Burgt Y. A modular organic neuromorphic spiking circuit for retina-inspired sensory coding and neurotransmitter-mediated neural pathways. Nat Commun 2024; 15:2868. [PMID: 38570478 PMCID: PMC10991258 DOI: 10.1038/s41467-024-47226-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Accepted: 03/25/2024] [Indexed: 04/05/2024] Open
Abstract
Signal communication mechanisms within the human body rely on the transmission and modulation of action potentials. Replicating the interdependent functions of receptors, neurons and synapses with organic artificial neurons and biohybrid synapses is an essential first step towards merging neuromorphic circuits and biological systems, crucial for computing at the biological interface. However, most organic neuromorphic systems are based on simple circuits which exhibit limited adaptability to both external and internal biological cues, and are restricted to emulate only specific the functions of an individual neuron/synapse. Here, we present a modular neuromorphic system which combines organic spiking neurons and biohybrid synapses to replicate a neural pathway. The spiking neuron mimics the sensory coding function of afferent neurons from light stimuli, while the neuromodulatory activity of interneurons is emulated by neurotransmitters-mediated biohybrid synapses. Combining these functions, we create a modular connection between multiple neurons to establish a pre-processing retinal pathway primitive.
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Affiliation(s)
- Giovanni Maria Matrone
- Microsystems, Institute for Complex Molecular Systems, Eindhoven University of Technology, 5612AJ, Eindhoven, The Netherlands.
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, USA.
| | - Eveline R W van Doremaele
- Microsystems, Institute for Complex Molecular Systems, Eindhoven University of Technology, 5612AJ, Eindhoven, The Netherlands
| | - Abhijith Surendran
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Zachary Laswick
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Sophie Griggs
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Oxford, OX1 3TA, UK
| | - Gang Ye
- Center for Biomedical Optics and Photonics (CBOP) & College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems, Shenzhen University, Shenzhen, 518060, PR China
| | - Iain McCulloch
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Oxford, OX1 3TA, UK
- King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Thuwal, 23955-6900, Saudi Arabia
| | - Francesca Santoro
- Tissue Electronics, Istituto Italiano di Tecnologia, Naples, 80125, Italy
- Institute of Biological Information Processing IBI-3 Bioelectronics, Forschungszentrum Juelich, 52428, Juelich, Germany
- Neuroelectronic Interfaces, Faculty of Electrical Engineering and IT, RWTH Aachen, 52074, Aachen, Germany
| | - Jonathan Rivnay
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Yoeri van de Burgt
- Microsystems, Institute for Complex Molecular Systems, Eindhoven University of Technology, 5612AJ, Eindhoven, The Netherlands.
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37
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Quill TJ, LeCroy G, Marks A, Hesse SA, Thiburce Q, McCulloch I, Tassone CJ, Takacs CJ, Giovannitti A, Salleo A. Charge Carrier Induced Structural Ordering And Disordering in Organic Mixed Ionic Electronic Conductors. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2310157. [PMID: 38198654 DOI: 10.1002/adma.202310157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 12/11/2023] [Indexed: 01/12/2024]
Abstract
Operational stability underpins the successful application of organic mixed ionic-electronic conductors (OMIECs) in a wide range of fields, including biosensing, neuromorphic computing, and wearable electronics. In this work, both the operation and stability of a p-type OMIEC material of various molecular weights are investigated. Electrochemical transistor measurements reveal that device operation is very stable for at least 300 charging/discharging cycles independent of molecular weight, provided the charge density is kept below the threshold where strong charge-charge interactions become likely. When electrochemically charged to higher charge densities, an increase in device hysteresis and a decrease in conductivity due to a drop in the hole mobility arising from long-range microstructural disruptions are observed. By employing operando X-ray scattering techniques, two regimes of polaron-induced structural changes are found: 1) polaron-induced structural ordering at low carrier densities, and 2) irreversible structural disordering that disrupts charge transport at high carrier densities, where charge-charge interactions are significant. These operando measurements also reveal that the transfer curve hysteresis at high carrier densities is accompanied by an analogous structural hysteresis, providing a microstructural basis for such instabilities. This work provides a mechanistic understanding of the structural dynamics and material instabilities of OMIEC materials during device operation.
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Affiliation(s)
- Tyler J Quill
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Garrett LeCroy
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Adam Marks
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Sarah A Hesse
- Stanford Synchrotron Radiation Lightsource SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
| | - Quentin Thiburce
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Iain McCulloch
- Department of Chemistry University of Oxford, Oxford, OX1 3TA, UK
| | - Christopher J Tassone
- Stanford Synchrotron Radiation Lightsource SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
| | - Christopher J Takacs
- Stanford Synchrotron Radiation Lightsource SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
| | - Alexander Giovannitti
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Göteborg, SE-412 96, Sweden
| | - Alberto Salleo
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
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38
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Catacchio M, Caputo M, Sarcina L, Scandurra C, Tricase A, Marchianò V, Macchia E, Bollella P, Torsi L. Spiers Memorial Lecture: Challenges and prospects in organic photonics and electronics. Faraday Discuss 2024; 250:9-42. [PMID: 38380468 DOI: 10.1039/d3fd00152k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
While a substantial amount of research activity has been conducted in fields related to organic photonics and electronics, including the development of devices such as organic field-effect transistors, organic photovoltaics, and organic light-emitting diodes for applications encompassing organic thermoelectrics, organic batteries, excitonic organic materials for photochemical and optoelectronic applications, and organic thermoelectrics, this perspective review will primarily concentrate on the emerging and rapidly expanding domain of organic bioelectronics and neuromorphics. Here we present the most recent research findings on organic transistors capable of sensing biological biomarkers down at the single-molecule level (i.e., oncoproteins, genomes, etc.) for the early diagnosis of pathological states and to mimic biological synapses, paving the way to neuromorphic applications that surpass the limitations of the traditional von Neumann computing architecture. Both organic bioelectronics and neuromorphics exhibit several challenges but will revolutionize human life, considering the development of artificial synapses to counteract neurodegenerative disorders and the development of ultrasensitive biosensors for the early diagnosis of cancer to prevent its development. Moreover, organic bioelectronics for sensing applications have also triggered the development of several wearable, flexible and stretchable biodevices for continuous biomarker monitoring.
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Affiliation(s)
- Michele Catacchio
- Dipartimento di Farmacia-Scienze del Farmaco, Università degli Studi di Bari "Aldo Moro", 70125 Bari, Italy
| | - Mariapia Caputo
- Dipartimento di Farmacia-Scienze del Farmaco, Università degli Studi di Bari "Aldo Moro", 70125 Bari, Italy
| | - Lucia Sarcina
- Dipartimento di Chimica and Centre for Colloid and Surface Science, Università degli Studi di Bari Aldo Moro, 70125 Bari, Italy.
| | - Cecilia Scandurra
- Dipartimento di Chimica and Centre for Colloid and Surface Science, Università degli Studi di Bari Aldo Moro, 70125 Bari, Italy.
| | - Angelo Tricase
- Dipartimento di Farmacia-Scienze del Farmaco, Università degli Studi di Bari "Aldo Moro", 70125 Bari, Italy
| | - Verdiana Marchianò
- Dipartimento di Farmacia-Scienze del Farmaco, Università degli Studi di Bari "Aldo Moro", 70125 Bari, Italy
| | - Eleonora Macchia
- Dipartimento di Farmacia-Scienze del Farmaco, Università degli Studi di Bari "Aldo Moro", 70125 Bari, Italy
| | - Paolo Bollella
- Dipartimento di Chimica and Centre for Colloid and Surface Science, Università degli Studi di Bari Aldo Moro, 70125 Bari, Italy.
| | - Luisa Torsi
- Dipartimento di Chimica and Centre for Colloid and Surface Science, Università degli Studi di Bari Aldo Moro, 70125 Bari, Italy.
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39
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Zeglio E, Wang Y, Jain S, Lin Y, Avila Ramirez AE, Feng K, Guo X, Ose H, Mozolevskis G, Mawad D, Yue W, Hamedi MM, Herland A. Mixing Insulating Commodity Polymers with Semiconducting n-type Polymers Enables High-Performance Electrochemical Transistors. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2302624. [PMID: 38431796 DOI: 10.1002/adma.202302624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 02/08/2024] [Indexed: 03/05/2024]
Abstract
Diluting organic semiconductors with a host insulating polymer is used to increase the electronic mobility in organic electronic devices, such as thin film transistors, while considerably reducing material costs. In contrast to organic electronics, bioelectronic devices such as the organic electrochemical transistor (OECT) rely on both electronic and ionic mobility for efficient operation, making it challenging to integrate hydrophobic polymers as the predominant blend component. This work shows that diluting the n-type conjugated polymer p(N-T) with high molecular weight polystyrene (10 KDa) leads to OECTs with over three times better mobility-volumetric capacitance product (µC*) with respect to the pristine p(N-T) (from 4.3 to 13.4 F V-1 cm-1 s-1 ) while drastically decreasing the amount of conjugated polymer (six times less). This improvement in µC* is due to a dramatic increase in electronic mobility by two orders of magnitude, from 0.059 to 1.3 cm2 V-1 s-1 for p(N-T):Polystyrene 10 KDa 1:6. Moreover, devices made with this polymer blend show better stability, retaining 77% of the initial drain current after 60 minutes operation in contrast to 12% for pristine p(N-T). These results open a new generation of low-cost organic mixed ionic-electronic conductors where the bulk of the film is made by a commodity polymer.
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Affiliation(s)
- Erica Zeglio
- AIMES-Center for the Advancement of Integrated Medical and Engineering Sciences, Department of Neuroscience, Karolinska Institute, Solna, 171 77, Sweden
- Division of Nanobiotechnology, Department of Protein Science, Science for Life Laboratory, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Solna, 171 65, Sweden
- Wallenberg Initiative Materials Science for Sustainability, Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, 114 18, Sweden
- Digital Futures, Stockholm, SE-100 44, Sweden
| | - Yazhou Wang
- State Key Laboratory of Optoelectronic Materials and Technologies, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Guangzhou Key Laboratory of Flexible Electronic Materials and Wearable Devices, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Saumey Jain
- Division of Nanobiotechnology, Department of Protein Science, Science for Life Laboratory, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Solna, 171 65, Sweden
- Division of Micro and Nanosystems, Department of Intelligent Systems, School of Electrical Engineering and Computer Science, KTH Royal Institute of Technology, Stockholm, 100 44, Sweden
| | - Yunfan Lin
- Division of Nanobiotechnology, Department of Protein Science, Science for Life Laboratory, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Solna, 171 65, Sweden
| | - Alan Eduardo Avila Ramirez
- Division of Nanobiotechnology, Department of Protein Science, Science for Life Laboratory, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Solna, 171 65, Sweden
| | - Kui Feng
- Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong, 518055, China
- Department of Materials Science and Engineering, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong, 518055, China
| | - Xugang Guo
- Department of Materials Science and Engineering, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong, 518055, China
- Guangdong Provincial Key Laboratory of Functional Oxide Materials and Devices, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong, 518055, China
| | - Helena Ose
- Micro and nanodevices laboratory, Institute of Solid-State Physics, University of Latvia, 8 Kengaraga Str., Riga, LV-1063, Latvia
| | - Gatis Mozolevskis
- Micro and nanodevices laboratory, Institute of Solid-State Physics, University of Latvia, 8 Kengaraga Str., Riga, LV-1063, Latvia
| | - Damia Mawad
- School of Materials Science and Engineering, UNSW Sydney, Sydney, New South Wales, 2052, Australia
| | - Wan Yue
- Wallenberg Initiative Materials Science for Sustainability, Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, 114 18, Sweden
| | - Mahiar Max Hamedi
- Digital Futures, Stockholm, SE-100 44, Sweden
- Department of Fiber and Polymer Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Teknikringen 56, Stockholm, 100 44, Sweden
| | - Anna Herland
- AIMES-Center for the Advancement of Integrated Medical and Engineering Sciences, Department of Neuroscience, Karolinska Institute, Solna, 171 77, Sweden
- Division of Nanobiotechnology, Department of Protein Science, Science for Life Laboratory, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Solna, 171 65, Sweden
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40
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Verardo C, Mele LJ, Selmi L, Palestri P. Finite-element modeling of neuromodulation via controlled delivery of potassium ions using conductive polymer-coated microelectrodes. J Neural Eng 2024; 21:026002. [PMID: 38306702 DOI: 10.1088/1741-2552/ad2581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 02/02/2024] [Indexed: 02/04/2024]
Abstract
Objective. The controlled delivery of potassium is an interesting neuromodulation modality, being potassium ions involved in shaping neuron excitability, synaptic transmission, network synchronization, and playing a key role in pathological conditions like epilepsy and spreading depression. Despite many successful examples of pre-clinical devices able to influence the extracellular potassium concentration, computational frameworks capturing the corresponding impact on neuronal activity are still missing.Approach. We present a finite-element model describing a PEDOT:PSS-coated microelectrode (herein, simplyionic actuator) able to release potassium and thus modulate the activity of a cortical neuron in anin-vitro-like setting. The dynamics of ions in the ionic actuator, the neural membrane, and the cellular fluids are solved self-consistently.Main results. We showcase the capability of the model to describe on a physical basis the modulation of the intrinsic excitability of the cell and of the synaptic transmission following the electro-ionic stimulation produced by the actuator. We consider three case studies for the ionic actuator with different levels of selectivity to potassium: ideal selectivity, no selectivity, and selectivity achieved by embedding ionophores in the polymer.Significance. This work is the first step toward a comprehensive computational framework aimed to investigate novel neuromodulation devices targeting specific ionic species, as well as to optimize their design and performance, in terms of the induced modulation of neural activity.
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Affiliation(s)
- Claudio Verardo
- Polytechnic Department of Engineering and Architecture, Università degli Studi di Udine, Udine, Italy
- BioRobotics Institute and Department of Excellence in Robotics and AI, Scuola Superiore Sant'Anna, Pisa, Italy
| | - Leandro Julian Mele
- Polytechnic Department of Engineering and Architecture, Università degli Studi di Udine, Udine, Italy
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, United States of America
| | - Luca Selmi
- Department of Engineering "Enzo Ferrari", Università degli Studi di Modena e Reggio Emilia, Modena, Italy
| | - Pierpaolo Palestri
- Polytechnic Department of Engineering and Architecture, Università degli Studi di Udine, Udine, Italy
- Department of Engineering "Enzo Ferrari", Università degli Studi di Modena e Reggio Emilia, Modena, Italy
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41
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Trueman RP, Guillemot-Legris O, Lancashire HT, Mehta AS, Tropp J, Daso RE, Rivnay J, Tabor AB, Phillips JB, Schroeder BC. Aligned Bioelectronic Polypyrrole/Collagen Constructs for Peripheral Nerve Interfacing. ADVANCED ENGINEERING MATERIALS 2024; 26:2301488. [PMID: 39100393 PMCID: PMC11296654 DOI: 10.1002/adem.202301488] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Indexed: 08/06/2024]
Abstract
Electrical stimulation has shown promise in clinical studies to treat nerve injuries. This work is aimed to create an aligned bioelectronic construct that can be used to bridge a nerve gap, directly interfacing with the damaged nerve tissue to provide growth support. The conductive three-dimensional bioelectronic scaffolds described herein are composite materials, comprised of conductive polypyrrole (PPy) nanoparticles embedded in an aligned collagen hydrogel. The bioelectronic constructs are seeded with dorsal root ganglion derived primary rat neurons and electrically stimulated in vitro. The PPy loaded constructs support a 1.7-fold increase in neurite length in comparison to control collagen constructs. Furthermore, upon electrical stimulation of the PPy-collagen construct, a 1.8-fold increase in neurite length is shown. This work illustrates the potential of bioelectronic constructs in neural tissue engineering and lays the groundwork for the development of novel bioelectronic materials for neural interfacing applications.
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Affiliation(s)
- Ryan P. Trueman
- UCL Centre for Nerve Engineering, University College London, London WC1N 1AX, UK; Department of Pharmacology, UCL School of Pharmacy, University College London, London WC1N 1AX, UK
| | - Owein Guillemot-Legris
- UCL Centre for Nerve Engineering, University College London, London WC1N 1AX, UK, Department of Pharmacology, UCL School of Pharmacy, University College London, London WC1N 1AX, UK
| | - Henry T. Lancashire
- Department of Medical Physics and Biomedical Engineering, University College London, London WC1E 6BT, UK
| | - Abijeet S. Mehta
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Joshua Tropp
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Rachel E. Daso
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Jonathan Rivnay
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Alethea B. Tabor
- Department of Chemistry, University College London, London WC1H 0AJ, UK
| | - James B. Phillips
- UCL Centre for Nerve Engineering, University College London, London WC1N 1AX, UK, Department of Pharmacology, UCL School of Pharmacy, University College London, London WC1N 1AX, UK
| | - Bob C. Schroeder
- Department of Chemistry, University College London, London WC1H 0AJ, UK
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42
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Gao Y, Zhou Y, Ji X, Graham AJ, Dundas CM, Miniel Mahfoud IE, Tibbett BM, Tan B, Partipilo G, Dodabalapur A, Rivnay J, Keitz BK. A hybrid transistor with transcriptionally controlled computation and plasticity. Nat Commun 2024; 15:1598. [PMID: 38383505 PMCID: PMC10881478 DOI: 10.1038/s41467-024-45759-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 02/02/2024] [Indexed: 02/23/2024] Open
Abstract
Organic electrochemical transistors (OECTs) are ideal devices for translating biological signals into electrical readouts and have applications in bioelectronics, biosensing, and neuromorphic computing. Despite their potential, developing programmable and modular methods for living systems to interface with OECTs has proven challenging. Here we describe hybrid OECTs containing the model electroactive bacterium Shewanella oneidensis that enable the transduction of biological computations to electrical responses. Specifically, we fabricated planar p-type OECTs and demonstrated that channel de-doping is driven by extracellular electron transfer (EET) from S. oneidensis. Leveraging this mechanistic understanding and our ability to control EET flux via transcriptional regulation, we used plasmid-based Boolean logic gates to translate biological computation into current changes within the OECT. Finally, we demonstrated EET-driven changes to OECT synaptic plasticity. This work enables fundamental EET studies and OECT-based biosensing and biocomputing systems with genetically controllable and modular design elements.
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Affiliation(s)
- Yang Gao
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, TX, 78712, USA
| | - Yuchen Zhou
- Department of Electrical and Computer Engineering, University of Texas at Austin, Austin, TX, 78712, USA
- Microelectronics Research Center, University of Texas at Austin, Austin, TX, 78758, USA
| | - Xudong Ji
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, USA
- Simpson Querrey Institute, Northwestern University, Chicago, IL, 60611, USA
| | - Austin J Graham
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, TX, 78712, USA
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA, 94158, USA
| | - Christopher M Dundas
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, TX, 78712, USA
- Department of Biology, Stanford University, Stanford, CA, 94305, USA
| | - Ismar E Miniel Mahfoud
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, TX, 78712, USA
| | - Bailey M Tibbett
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, TX, 78712, USA
| | - Benjamin Tan
- Microelectronics Research Center, University of Texas at Austin, Austin, TX, 78758, USA
- Department of Chemistry, University of Texas at Austin, Austin, TX, 78712, USA
| | - Gina Partipilo
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, TX, 78712, USA
| | - Ananth Dodabalapur
- Department of Electrical and Computer Engineering, University of Texas at Austin, Austin, TX, 78712, USA
- Microelectronics Research Center, University of Texas at Austin, Austin, TX, 78758, USA
| | - Jonathan Rivnay
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, USA
- Simpson Querrey Institute, Northwestern University, Chicago, IL, 60611, USA
| | - Benjamin K Keitz
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, TX, 78712, USA.
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43
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Peñas-Núñez SJ, Mecerreyes D, Criado-Gonzalez M. Recent Advances and Developments in Injectable Conductive Polymer Gels for Bioelectronics. ACS APPLIED BIO MATERIALS 2024. [PMID: 38364213 DOI: 10.1021/acsabm.3c01224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2024]
Abstract
Soft matter bioelectronics represents an emerging and interdisciplinary research frontier aiming to harness the synergy between biology and electronics for advanced diagnostic and healthcare applications. In this context, a whole family of soft gels have been recently developed with self-healing ability and tunable biological mimetic features to act as a tissue-like space bridging the interface between the electronic device and dynamic biological fluids and body tissues. This review article provides a comprehensive overview of electroactive polymer gels, formed by noncovalent intermolecular interactions and dynamic covalent bonds, as injectable electroactive gels, covering their synthesis, characterization, and applications. First, hydrogels crafted from conducting polymers (poly(3,4-ethylene-dioxythiophene) (PEDOT), polyaniline (PANi), and polypyrrole (PPy))-based networks which are connected through physical interactions (e.g., hydrogen bonding, π-π stacking, hydrophobic interactions) or dynamic covalent bonds (e.g., imine bonds, Schiff-base, borate ester bonds) are addressed. Injectable hydrogels involving hybrid networks of polymers with conductive nanomaterials (i.e., graphene oxide, carbon nanotubes, metallic nanoparticles, etc.) are also discussed. Besides, it also delves into recent advancements in injectable ionic liquid-integrated gels (iongels) and deep eutectic solvent-integrated gels (eutectogels), which present promising avenues for future research. Finally, the current applications and future prospects of injectable electroactive polymer gels in cutting-edge bioelectronic applications ranging from tissue engineering to biosensing are outlined.
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Affiliation(s)
- Sergio J Peñas-Núñez
- POLYMAT, University of the Basque Country UPV/EHU, Avda. Tolosa 72, 20018 Donostia-San Sebastián, Spain
| | - David Mecerreyes
- POLYMAT, University of the Basque Country UPV/EHU, Avda. Tolosa 72, 20018 Donostia-San Sebastián, Spain
- Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
| | - Miryam Criado-Gonzalez
- POLYMAT, University of the Basque Country UPV/EHU, Avda. Tolosa 72, 20018 Donostia-San Sebastián, Spain
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Chen Y, Méhes G, Liu B, Gao L, Cui M, Lin C, Hirono-Hara Y, Hara KY, Mitome N, Miyake T. Proton Logic Gate Based on a Gramicidin-ATP Synthase Integrated Biotransducer. ACS APPLIED MATERIALS & INTERFACES 2024; 16:7480-7488. [PMID: 38295806 DOI: 10.1021/acsami.3c15251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
Ion channels are membrane proteins that allow ionic signals to pass through channel pores for biofunctional modulations. However, biodevices that integrate bidirectional biological signal transmission between a device and biological converter through supported lipid bilayers (SLBs) while simultaneously controlling the process are lacking. Therefore, in this study, we aimed to develop a hybrid biotransducer composed of ATP synthase and proton channel gramicidin A (gA), controlled by a sulfonated polyaniline (SPA) conducting polymer layer deposited on a microelectrode, and to simulate a model circuit for this system. We controlled proton transport across the gA channel using both electrical and chemical input signals by applying voltage to the SPA or introducing calcium ions (inhibitor) and ethylenediaminetetraacetic acid molecules (inhibitor remover). The insertion of gA and ATP synthase into SLBs on microelectrodes resulted in an integrated biotransducer, in which the proton current was controlled by the flux of adenosine diphosphate molecules and calcium ions. Lastly, we created an XOR logic gate as an enzymatic logic system where the output proton current was controlled by Input A (ATP synthase) and Input B (calcium ions), making use of the unidirectional and bidirectional transmission of protons in ATP synthase and gA, respectively. We combined gA, ATP synthase, and SPA as a hybrid bioiontronics system to control bidirectional or unidirectional ion transport across SLBs in biotransducers. Thus, our findings are potentially relevant for a range of advanced biological and medical applications.
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Affiliation(s)
- Yukun Chen
- Graduate School of Information, Production and Systems, Waseda University, 2-7 Hibikino, Wakamatu, Kitakyushu 808-0135, Fukuoka, Japan
| | - Gábor Méhes
- Graduate School of Information, Production and Systems, Waseda University, 2-7 Hibikino, Wakamatu, Kitakyushu 808-0135, Fukuoka, Japan
| | - Bingfu Liu
- Graduate School of Information, Production and Systems, Waseda University, 2-7 Hibikino, Wakamatu, Kitakyushu 808-0135, Fukuoka, Japan
| | - Liyun Gao
- Graduate School of Information, Production and Systems, Waseda University, 2-7 Hibikino, Wakamatu, Kitakyushu 808-0135, Fukuoka, Japan
| | - Mingyin Cui
- Graduate School of Information, Production and Systems, Waseda University, 2-7 Hibikino, Wakamatu, Kitakyushu 808-0135, Fukuoka, Japan
| | - Chenliang Lin
- Graduate School of Information, Production and Systems, Waseda University, 2-7 Hibikino, Wakamatu, Kitakyushu 808-0135, Fukuoka, Japan
| | - Yoko Hirono-Hara
- Department of Environmental and Life Sciences, School of Food and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Kiyotaka Y Hara
- Department of Environmental and Life Sciences, School of Food and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Noriyo Mitome
- Faculty of Education, Tokoha University, 6-1 Yayoicho, Suruga, Shizuoka 422-8581, Shizuoka, Japan
| | - Takeo Miyake
- Graduate School of Information, Production and Systems, Waseda University, 2-7 Hibikino, Wakamatu, Kitakyushu 808-0135, Fukuoka, Japan
- PRESTO, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi 332-0012, Saitama, Japan
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45
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Shakya J, Kang MA, Li J, VahidMohammadi A, Tian W, Zeglio E, Hamedi MM. 2D MXene electrochemical transistors. NANOSCALE 2024; 16:2883-2893. [PMID: 38259225 DOI: 10.1039/d3nr06540e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
The solid-state field-effect transistor, FET, and its theories were paramount in the discovery and studies of graphene. In the past two decades another transistor based on conducting polymers, called organic electrochemical transistor (ECT), has been developed and largely studied. The main difference between organic ECTs and FETs is the mode and extent of channel doping; while in FETs the channel only has surface doping through dipoles, the mixed ionic-electronic conductivity of the channel material in organic ECTs enables bulk electrochemical doping. As a result, organic ECTs maximize conductance modulation at the expense of speed. To date ECTs have been based on conducting polymers, but here we show that MXenes, a class of 2D materials beyond graphene, enable the realization of electrochemical transistors (ECTs). We show that the formulas for organic ECTs can be applied to these 2D ECTs and used to extract parameters like mobility. These MXene ECTs have high transconductance values but low on-off ratios. We further show that conductance switching data measured using ECT, in combination with other in situ-ex situ electrochemical measurements, is a powerful tool for correlating the change in conductance to that of the redox state, to our knowledge, this is the first report of this important correlation for MXene films. 2D ECTs can draw great inspiration and theoretical tools from the field of organic ECTs and have the potential to considerably extend the capabilities of transistors beyond those of conducting polymer ECTs, with added properties such as extreme heat resistance, tolerance for solvents, and higher conductivity for both electrons and ions than conducting polymers.
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Affiliation(s)
- Jyoti Shakya
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56, 10044 Stockholm, Sweden.
| | - Min-A Kang
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56, 10044 Stockholm, Sweden.
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Jian Li
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56, 10044 Stockholm, Sweden.
| | - Armin VahidMohammadi
- A. J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA 19104, USA
- Innovation Partnership Building, UConn Tech Park, University of Conneticut, Storrs, CT 06269, USA
| | - Weiqian Tian
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56, 10044 Stockholm, Sweden.
- School of Materials Science and Engineering, Ocean University of China, Qingdao, Shandong 266100, China
| | - Erica Zeglio
- Division of Nanobiotechnology, Department of Protein Science, Science for Life Laboratory, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology and Digital Futures, Solna, Sweden.
- AIMES - Center for the Advancement of Integrated Medical and Engineering Sciences, Department of Neuroscience, Karolinska Institute, Stockholm, 17177, Sweden
- Wallenberg Initiative Materials Science for Sustainability, Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, 114 18, Sweden
| | - Mahiar Max Hamedi
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56, 10044 Stockholm, Sweden.
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46
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Lee H, Cho J, Jin M, Lee JH, Lee C, Kim J, Lee J, Shin JC, Yoo J, Lee E, Kim YS. Electrochemical Analysis of Ion Effects on Electrolyte-Gated Synaptic Transistor Characteristics. ACS NANO 2024. [PMID: 38324887 DOI: 10.1021/acsnano.3c10082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Electrolyte-gated transistors (EGTs) are promising candidates as artificial synapses owing to their precise conductance controllability, quick response times, and especially their low operating voltages resulting from ion-assisted signal transmission. However, it is still vague how ion-related physiochemical elements and working mechanisms impact synaptic performance. Here, to address the unclear correlations, we suggest a methodical approach based on electrochemical analysis using poly(ethylene oxide) EGTs with three alkali ions: Li+, Na+, and K+. Cyclic voltammetry is employed to identify the kind of electrochemical reactions taking place at the channel/electrolyte interface, which determines the nonvolatile memory functionality of the EGTs. Additionally, using electrochemical impedance spectroscopy and qualitative analysis of electrolytes, we confirm that the intrinsic properties of electrolytes (such as crystallinity, solubility, and ion conductivity) and ion dynamics ultimately define the linearity/symmetricity of conductance modulation. Through simple but systematic electrochemical analysis, these results offer useful insights for the selection of components for high-performing artificial synapses.
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Affiliation(s)
- Haeyeon Lee
- Department of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Jinil Cho
- Program in Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Minho Jin
- Program in Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Jae Hak Lee
- Program in Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
- Samsung Display Company, Ltd., 1 Samsung-ro, Giheung-gu, Yongin-si, Gyeonggi-do 17113, Republic of Korea
| | - Chan Lee
- Department of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Jiyeon Kim
- Department of Applied Bioengineering, Graduate School of Convergence Science and Technology, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Jiho Lee
- Department of Applied Bioengineering, Graduate School of Convergence Science and Technology, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Jong Chan Shin
- Department of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Jeeyoung Yoo
- School of Energy Engineering, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Eungkyu Lee
- Department of Electronic Engineering, Kyung Hee University, Yongin-si, Gyeonggi-do 17104, Republic of Korea
| | - Youn Sang Kim
- Department of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
- Program in Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
- Department of Applied Bioengineering, Graduate School of Convergence Science and Technology, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
- Advanced Institutes of Convergence Technology, 145 Gwanggyo-ro, Yeongtong-gu, Suwon 16229, Republic of Korea
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Huang Z, Li P, Lei Y, Deng XY, Chen YN, Tian S, Pan X, Lei X, Song C, Zheng Y, Wang JY, Zhang Z, Lei T. Azonia-Naphthalene: A Cationic Hydrophilic Building Block for Stable N-Type Organic Mixed Ionic-Electronic Conductors. Angew Chem Int Ed Engl 2024; 63:e202313260. [PMID: 37938169 DOI: 10.1002/anie.202313260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 10/16/2023] [Accepted: 11/08/2023] [Indexed: 11/09/2023]
Abstract
Conjugated polymers that can efficiently transport both ionic and electronic charges have broad applications in next-generation optoelectronic, bioelectronic, and energy storage devices. To date, almost all the conjugated polymers have hydrophobic backbones, which impedes efficient ion diffusion/transport in aqueous media. Here, we design and synthesize a novel hydrophilic polymer building block, 4a-azonia-naphthalene (AN), drawing inspiration from biological systems. Because of the strong electron-withdrawing ability of AN, the AN-based polymers show typical n-type charge transport behaviors. We find that cationic aromatics exhibit strong cation-π interactions, leading to smaller π-π stacking distance, interesting ion diffusion behavior, and good morphology stability. Additionally, AN enhances the hydrophilicity and ionic-electronic coupling of the polymer, which can help to improve ion diffusion/injection speed, and operational stability of organic electrochemical transistors (OECTs). The integration of cationic building blocks will undoubtedly enrich the material library for high-performance n-type conjugated polymers.
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Affiliation(s)
- Zhen Huang
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, School of Materials Science and Engineering, Peking University, Beijing, 100871, China
- College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Peiyun Li
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, School of Materials Science and Engineering, Peking University, Beijing, 100871, China
| | - Yuqiu Lei
- College of Engineering, Peking University, Beijing, 100871, China
| | - Xin-Yu Deng
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, School of Materials Science and Engineering, Peking University, Beijing, 100871, China
| | - Yu-Nan Chen
- College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Shuangyan Tian
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, School of Materials Science and Engineering, Peking University, Beijing, 100871, China
| | - Xiran Pan
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, School of Materials Science and Engineering, Peking University, Beijing, 100871, China
| | - Xun Lei
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, School of Materials Science and Engineering, Peking University, Beijing, 100871, China
| | - Cheng Song
- College of Engineering, Peking University, Beijing, 100871, China
| | - Yuting Zheng
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, School of Materials Science and Engineering, Peking University, Beijing, 100871, China
| | - Jie-Yu Wang
- College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Zhi Zhang
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, School of Materials Science and Engineering, Peking University, Beijing, 100871, China
| | - Ting Lei
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, School of Materials Science and Engineering, Peking University, Beijing, 100871, China
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48
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Shao M, Liu H, He R, Li X, Wu L, Ma J, Ye C, Hu X, Zhao R, Zhong Z, Yu Y, Wan C, Yang Y, Nan CW, Bai X, Ren TL, Renshaw Wang X. Programmable Ferroelectricity in Hf 0.5Zr 0.5O 2 Enabled by Oxygen Defect Engineering. NANO LETTERS 2024; 24:1231-1237. [PMID: 38251914 DOI: 10.1021/acs.nanolett.3c04104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
Ferroelectricity, especially the Si-compatible type recently observed in hafnia-based materials, is technologically useful for modern memory and logic applications, but it is challenging to differentiate intrinsic ferroelectric polarization from the polar phase and oxygen vacancy. Here, we report electrically controllable ferroelectricity in a Hf0.5Zr0.5O2-based heterostructure with Sr-doped LaMnO3, a mixed ionic-electronic conductor, as an electrode. Electrically reversible extraction and insertion of an oxygen vacancy into Hf0.5Zr0.5O2 are macroscopically characterized and atomically imaged in situ. Utilizing this reversible process, we achieved multilevel polarization states modulated by the electric field. Our study demonstrates the usefulness of the mixed conductor to repair, create, manipulate, and utilize advanced ferroelectric functionality. Furthermore, the programmed ferroelectric heterostructures with Si-compatible doped hafnia are desirable for the development of future ferroelectric electronics.
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Affiliation(s)
- Minghao Shao
- Institute of Microelectronics and Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Houfang Liu
- Institute of Microelectronics and Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Ri He
- Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Xiaomei Li
- School of Integrated Circuits, East China Normal University, Shanghai 200241, China
| | - Liang Wu
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
- Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China
| | - Ji Ma
- Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China
| | - Chen Ye
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
| | - Xiangchen Hu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Ruiting Zhao
- Institute of Microelectronics and Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Zhicheng Zhong
- Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Yi Yu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Caihua Wan
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Yi Yang
- Institute of Microelectronics and Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Ce-Wen Nan
- School of Materials Science and Engineering, State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, China
| | - Xuedong Bai
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Tian-Ling Ren
- Institute of Microelectronics and Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - X Renshaw Wang
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798
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Ameer G, Keate R, Bury M, Mendez-Santos M, Gerena A, Goedegebuure M, Rivnay J, Sharma A. Cell-free biodegradable electroactive scaffold for urinary bladder regeneration. RESEARCH SQUARE 2024:rs.3.rs-3817836. [PMID: 38352487 PMCID: PMC10862962 DOI: 10.21203/rs.3.rs-3817836/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
Tissue engineering heavily relies on cell-seeded scaffolds to support the complex biological and mechanical requirements of a target organ. However, in addition to safety and efficacy, translation of tissue engineering technology will depend on manufacturability, affordability, and ease of adoption. Therefore, there is a need to develop scalable biomaterial scaffolds with sufficient bioactivity to eliminate the need for exogenous cell seeding. Herein, we describe synthesis, characterization, and implementation of an electroactive biodegradable elastomer for urinary bladder tissue engineering. To create an electrically conductive and mechanically robust scaffold to support bladder tissue regeneration, we developed a phase-compatible functionalization method wherein the hydrophobic conductive polymer poly(3,4-ethylenedioxythiophene) (PEDOT) was polymerized in situ within a similarly hydrophobic citrate-based elastomer poly(octamethylene-citrate-co-octanol) (POCO) film. We demonstrate the efficacy of this film as a scaffold for bladder augmentation in athymic rats, comparing PEDOT-POCO scaffolds to mesenchymal stromal cell-seeded POCO scaffolds. PEDOT-POCO recovered bladder function and anatomical structure comparably to the cell-seeded POCO scaffolds and significantly better than non-cell seeded POCO scaffolds. This manuscript reports: (1) a new phase-compatible functionalization method that confers electroactivity to a biodegradable elastic scaffold, and (2) the successful restoration of the anatomy and function of an organ using a cell-free electroactive scaffold.
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McLeod RR, Malliaras GG. Conducting polymers take control of the field. Proc Natl Acad Sci U S A 2024; 121:e2320855121. [PMID: 38232285 PMCID: PMC10823163 DOI: 10.1073/pnas.2320855121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2024] Open
Affiliation(s)
- Robert R. McLeod
- Department of Electrical, Computer and Energy Engineering and Materials Science and Engineering Program, University of Colorado, Boulder, CO80309-0425
| | - George G. Malliaras
- Electrical Engineering Division, Department of Engineering, University of Cambridge, CambridgeCB3 0FA, United Kingdom
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