A5065689706- Conducting polymers and applications
- Analytical Chemistry and Sensors
- Neuroscience and Neural Engineering
- Advanced Sensor and Energy Harvesting Materials
- Organic Electronics and Photovoltaics
- Plant and Biological Electrophysiology Studies
- Photoreceptor and optogenetics research
- Electrochemical sensors and biosensors
- Perovskite Materials and Applications
- Advanced Memory and Neural Computing
- Electrochemical Analysis and Applications
- Polydiacetylene-based materials and applications
- Supercapacitor Materials and Fabrication
- Advanced battery technologies research
- Electrospun Nanofibers in Biomedical Applications
- Microbial Metabolites in Food Biotechnology
- Electrowetting and Microfluidic Technologies
- Modular Robots and Swarm Intelligence
- Planarian Biology and Electrostimulation
- Plant responses to water stress
- Microbial Fuel Cells and Bioremediation
- Plant tissue culture and regeneration
- Fuel Cells and Related Materials
- Plant Molecular Biology Research
- 3D Printing in Biomedical Research
Linköping University
2015-2025
Wallenberg Wood Science Center
2019-2024
Umeå Plant Science Centre
2021-2024
Swedish University of Agricultural Sciences
2021-2024
Laboratoire de Synthèse Organique
2017-2020
Norrköping Hospital
2020
Imperial College London
2017
Mines Saint-Étienne
2011-2016
École Normale Supérieure - PSL
2013
Musée d'Orsay
2013
Abstract Poly(3,4-ethylenedioxythiophene) doped with poly(styrenesulfonate), PEDOT:PSS, has been utilized for over two decades as a stable, solution-processable hole conductor. While its transport properties have the subject of intense investigation, recent work turned to PEDOT:PSS mixed ionic/electronic conductor in applications including bioelectronics, energy storage and management, soft robotics. Conducting polymers can efficiently both holes ions when sufficiently hydrated, however,...
The development of transistors with high gain is essential for applications ranging from switching elements and drivers to transducers chemical biological sensing. Organic have become well-established based on their distinct advantages, including ease fabrication, synthetic freedom functionalization, the ability take unique form factors. These devices, however, are largely viewed as belonging low-end performance spectrum. Here we present organic electrochemical a transconductance in mS...
Using planar junctions between the conducting polymer PEDOT:PSS and various electrolytes, it is possible to inject common ions directly observe their transit through film. The 1D geometry of experiment allows a straightforward estimate ion drift mobilities.
A series of glycolated polythiophenes for use in organic electrochemical transistors (OECTs) is designed and synthesized, differing the distribution their ethylene glycol chains that are tethered to conjugated backbone. While side chain redistribution does not have a significant impact on optoelectronic properties polymers, this molecular engineering strategy strongly impacts water uptake achieved polymers. By careful optimization polymer films, OECTs with unprecedented steady-state...
Conjugated polymers have been increasingly considered for the design of conductive materials in field regenerative medicine. However, optimal scaffold properties addressing complexity desired tissue still need to be developed. The focus this study lies development and evaluation a bone engineering. In PEDOT:PSS scaffolds were designed evaluated vitro using MC3T3-E1 osteogenic precursor cells, cells assessed distinct differentiation stages expression an phenotype. Ice-templated presented high...
The roots, stems, leaves, and vascular circuitry of higher plants are responsible for conveying the chemical signals that regulate growth functions. From a certain perspective, these features analogous to contacts, interconnections, devices, wires discrete integrated electronic circuits. Although many attempts have been made augment plant function with electroactive materials, plants' "circuitry" has never directly merged electronics. We report analog digital organic circuits devices...
Abstract Future brain-machine interfaces, prosthetics, and intelligent soft robotics will require integrating artificial neuromorphic devices with biological systems. Due to their poor biocompatibility, circuit complexity, low energy efficiency, operating principles fundamentally different from the ion signal modulation of biology, traditional Silicon-based implementations have limited bio-integration potential. Here, we report first organic electrochemical neurons (OECNs) ion-modulated...
Abstract An evolvable organic electrochemical transistor (OECT), operating in the hybrid accumulation–depletion mode is reported, which exhibits short‐term and long‐term memory functionalities. The channel, formed by an electropolymerized conducting polymer, can be formed, modulated, obliterated situ under operation. Enduring changes channel conductance, analogous to potentiation depression, are attained electropolymerization overoxidation of material, respectively. Transient accomplished...
Interfacing electronics with neural tissue is crucial for understanding complex biological functions, but conventional bioelectronics consist of rigid electrodes fundamentally incompatible living systems. The difference between static solid-state and dynamic matter makes seamless integration the two challenging. To address this incompatibility, we developed a method to dynamically create soft substrate-free conducting materials within environment. We demonstrate in vivo electrode formation...
Significance Plants with integrated electronics, e -Plants, have been presented recently. Up to now the devices and circuits manufactured in localized regions of plant due limited distribution organic electronic material. Here we demonstrate synthesis application a conjugated oligomer that can be delivered every part vascular tissue cross through veins into apoplast leaves. The polymerizes vivo physicochemical environment plant. We long-range conducting wires supercapacitors along stem. Our...
Abstract Biosensors based on organic electrochemical transistors (OECT) are attractive devices for real‐time monitoring of biological processes. The direct coupling between the channel OECT and electrolyte enables intimate interfacing with environments at same time bringing signal amplification fast sensor response times. So far, these mainly applied to mammalian systems; cells or body fluids development diagnostics various health status technology. Yet, no detection biomolecules from...
Bioelectronic devices that convert biochemical signals to electronic readout enable biosensing with high spatiotemporal resolution. These technologies have been primarily applied in biomedicine while plants sensing is mainly based on invasive methods require tissue sampling, hindering in-vivo detection and having poor Here, we developed enzymatic biosensors organic electrochemical transistors (OECTs) for real-time monitoring of sugar fluctuations the vascular trees. The glucose sucrose...
In Arabidopsis thaliana, local wounding and herbivore feeding provoke leaf-to-leaf propagating Ca2+ waves that are dependent on the activity of members glutamate receptor-like channels (GLRs). systemic tissues, GLRs needed to sustain synthesis jasmonic acid (JA) with subsequent activation JA-dependent signaling response required for plant acclimation perceived stress. Even though role is well established, mechanism through which they activated remains unclear. Here, we report in vivo,...
A generic lithographic process is presented that allows the fabrication of high density organic electrochemical transistor arrays meant to interface with aqueous electrolytes. The channels transistors, which were 6 μm long, made conducting polymer poly(3,4-ethylenedioxythiophene) doped poly(styrene sulfonate) and in direct contact phosphate buffered saline. Source drain electrodes interconnects insulated by parylene C, a biocompatible material. transistors operated at low voltages showed...
Microbial electrochemical systems provide an environmentally-friendly means of energy conversion between chemical and electrical forms, with applications in wastewater treatment, bioelectronics, biosensing. However, a major challenge to further development, miniaturization, deployment bioelectronics biosensors is the limited thickness biofilms, necessitating large anodes achieve sufficient signal-to-noise ratios. Here we demonstrate method for embedding electroactive bacterium, Shewanella...
Abstract Conjugated polymers exhibit electrically driven volume changes when included in electrochemical devices via the exchange of ions and solvent. So far, this volumetric change is limited to 40% 100% for reversible irreversible systems, respectively, thus restricting potential applications technology. A conjugated polymer that reversibly expands by about 300% upon addressing, relative its previous contracted state, while first actuation can achieve values ranging from 1000–10 000%,...
Extracellular electron transfer (EET) denotes the process of microbial respiration with to extracellular acceptors and has been exploited in a range electrochemical systems (MESs). To further understand EET optimize performance MESs, better understanding dynamics at microscale is needed. However, real-time monitoring high spatiotemporal resolution would require sophisticated signal amplification. amplify local signals, miniaturized bioelectronic device, so-called organic transistor (OMECT),...
Abstract Electrochemically induced volume changes in organic mixed ionic‐electronic conductors (OMIECs) are particularly important for their use dynamic microfiltration systems, biomedical machinery, and electronic devices. Although significant advances have been made to maximize the dimensional that can be accomplished by OMIECs, there is currently limited understanding of how molecular structures impact underpinning fundamental processes performance Herein, a series ethylene glycol...
Next-generation implantable computational devices require long-term-stable electronic components capable of operating in, and interacting with, electrolytic surroundings without being damaged. Organic electrochemical transistors (OECTs) emerged as fitting candidates. However, while single feature impressive figures merit, integrated circuits (ICs) immersed in common electrolytes are hard to realize using transistors, there is no clear path forward for optimal top-down circuit design...
For the majority of biosensors or biomedical devices, immobilization biorecognition element is a critical step for device function. To achieve longer lifetime devices and controllable functionalization, covalent immobilisation techniques are preferred over passive adhesion electrostatic interactions. The rapidly emerging field organic bioelectronics uses conducting polymers (or small molecules) as active materials transduction biological signal to an electronic one. While number have been...