1
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Rochford AE, Carnicer-Lombarte A, Kawan M, Jin A, Hilton S, Curto VF, Rutz AL, Moreau T, Kotter MR, Malliaras GG, Barone DG. Functional neurological restoration of amputated peripheral nerve using biohybrid regenerative bioelectronics. Sci Adv 2023; 9:eadd8162. [PMID: 36947608 PMCID: PMC10032597 DOI: 10.1126/sciadv.add8162] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 02/16/2023] [Indexed: 06/18/2023]
Abstract
The development of neural interfaces with superior biocompatibility and improved tissue integration is vital for treating and restoring neurological functions in the nervous system. A critical factor is to increase the resolution for mapping neuronal inputs onto implants. For this purpose, we have developed a new category of neural interface comprising induced pluripotent stem cell (iPSC)-derived myocytes as biological targets for peripheral nerve inputs that are grafted onto a flexible electrode arrays. We show long-term survival and functional integration of a biohybrid device carrying human iPSC-derived cells with the forearm nerve bundle of freely moving rats, following 4 weeks of implantation. By improving the tissue-electronics interface with an intermediate cell layer, we have demonstrated enhanced resolution and electrical recording in vivo as a first step toward restorative therapies using regenerative bioelectronics.
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Affiliation(s)
- Amy E. Rochford
- Electrical Engineering Division, Department of Engineering, University of Cambridge, Cambridge, UK
| | | | - Malak Kawan
- Electrical Engineering Division, Department of Engineering, University of Cambridge, Cambridge, UK
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | - Amy Jin
- Electrical Engineering Division, Department of Engineering, University of Cambridge, Cambridge, UK
| | - Sam Hilton
- Electrical Engineering Division, Department of Engineering, University of Cambridge, Cambridge, UK
| | - Vincenzo F. Curto
- Electrical Engineering Division, Department of Engineering, University of Cambridge, Cambridge, UK
| | - Alexandra L. Rutz
- Electrical Engineering Division, Department of Engineering, University of Cambridge, Cambridge, UK
| | | | - Mark R. N. Kotter
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
- Bit Bio, Cambridge, UK
| | - George G. Malliaras
- Electrical Engineering Division, Department of Engineering, University of Cambridge, Cambridge, UK
| | - Damiano G. Barone
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
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2
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Gurke J, Naegele TE, Hilton S, Pezone R, Curto VF, Barone DG, List-Kratochvil EJW, Carnicer-Lombarte A, Malliaras GG. Hybrid fabrication of multimodal intracranial implants for electrophysiology and local drug delivery. Mater Horiz 2022; 9:1727-1734. [PMID: 35474130 PMCID: PMC9169700 DOI: 10.1039/d1mh01855h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 04/21/2022] [Indexed: 05/31/2023]
Abstract
New fabrication approaches for mechanically flexible implants hold the key to advancing the applications of neuroengineering in fundamental neuroscience and clinic. By combining the high precision of thin film microfabrication with the versatility of additive manufacturing, we demonstrate a straight-forward approach for the prototyping of intracranial implants with electrode arrays and microfluidic channels. We show that the implant can modulate neuronal activity in the hippocampus through localized drug delivery, while simultaneously recording brain activity by its electrodes. Moreover, good implant stability and minimal tissue response are seen one-week post-implantation. Our work shows the potential of hybrid fabrication combining different manufacturing techniques in neurotechnology and paves the way for a new approach to the development of multimodal implants.
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Affiliation(s)
- Johannes Gurke
- University of Cambridge, Electrical Engineering Division, 9 JJ Thomson Ave, Cambridge, CB3 0FA, UK.
| | - Tobias E Naegele
- University of Cambridge, Electrical Engineering Division, 9 JJ Thomson Ave, Cambridge, CB3 0FA, UK.
| | - Sam Hilton
- University of Cambridge, Electrical Engineering Division, 9 JJ Thomson Ave, Cambridge, CB3 0FA, UK.
| | - Roberto Pezone
- University of Cambridge, Electrical Engineering Division, 9 JJ Thomson Ave, Cambridge, CB3 0FA, UK.
| | - Vincenzo F Curto
- University of Cambridge, Electrical Engineering Division, 9 JJ Thomson Ave, Cambridge, CB3 0FA, UK.
| | - Damiano G Barone
- University of Cambridge, Electrical Engineering Division, 9 JJ Thomson Ave, Cambridge, CB3 0FA, UK.
- University of Cambridge, School of Clinical Medicine, Department of Clinical Neurosciences, Cambridge Biomedical Campus, Cambridge CB2 0QQ, UK
| | - Emil J W List-Kratochvil
- Humboldt-Universität zu Berlin, Department of Chemistry and of Physics and IRIS Adlershof, Hybrid Devices Group, Zum Großen Windkanal 2, 12489 Berlin, Germany
- Helmholtz-Zentrum für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | | | - George G Malliaras
- University of Cambridge, Electrical Engineering Division, 9 JJ Thomson Ave, Cambridge, CB3 0FA, UK.
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3
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Shor E, Herrero-Vidal P, Dewan A, Uguz I, Curto VF, Malliaras GG, Savin C, Bozza T, Rinberg D. Sensitive and robust chemical detection using an olfactory brain-computer interface. Biosens Bioelectron 2022; 195:113664. [PMID: 34624799 DOI: 10.1016/j.bios.2021.113664] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 08/09/2021] [Accepted: 09/20/2021] [Indexed: 12/13/2022]
Abstract
When it comes to detecting volatile chemicals, biological olfactory systems far outperform all artificial chemical detection devices in their versatility, speed, and specificity. Consequently, the use of trained animals for chemical detection in security, defense, healthcare, agriculture, and other applications has grown astronomically. However, the use of animals in this capacity requires extensive training and behavior-based communication. Here we propose an alternative strategy, a bio-electronic nose, that capitalizes on the superior capability of the mammalian olfactory system, but bypasses behavioral output by reading olfactory information directly from the brain. We engineered a brain-computer interface that captures neuronal signals from an early stage of olfactory processing in awake mice combined with machine learning techniques to form a sensitive and selective chemical detector. We chronically implanted a grid electrode array on the surface of the mouse olfactory bulb and systematically recorded responses to a large battery of odorants and odorant mixtures across a wide range of concentrations. The bio-electronic nose has a comparable sensitivity to the trained animal and can detect odors on a variable background. We also introduce a novel genetic engineering approach that modifies the relative abundance of particular olfactory receptors in order to improve the sensitivity of our bio-electronic nose for specific chemical targets. Our recordings were stable over months, providing evidence for robust and stable decoding over time. The system also works in freely moving animals, allowing chemical detection to occur in real-world environments. Our bio-electronic nose outperforms current methods in terms of its stability, specificity, and versatility, setting a new standard for chemical detection.
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Affiliation(s)
- Erez Shor
- Neuroscience Institute, New York University Langone Health, New York, NY, 10016, USA
| | - Pedro Herrero-Vidal
- Neuroscience Institute, New York University Langone Health, New York, NY, 10016, USA; Center for Neural Science, New York University, New York, NY, 10003, USA
| | - Adam Dewan
- Department of Neurobiology, Northwestern University, Evanston, IL, 60208, USA; Department of Psychology, Florida State University, Tallahassee, FL, 32306, USA
| | - Ilke Uguz
- Electrical Engineering, Columbia University, 5798 New York, NY, 10027, USA
| | - Vincenzo F Curto
- Division of Electrical Engineering, Department of Engineering, Cambridge University, Cambridge, UK
| | - George G Malliaras
- Division of Electrical Engineering, Department of Engineering, Cambridge University, Cambridge, UK
| | - Cristina Savin
- Neuroscience Institute, New York University Langone Health, New York, NY, 10016, USA; Center for Neural Science, New York University, New York, NY, 10003, USA; Center for Data Science, New York University, New York, NY, 10003, USA
| | - Thomas Bozza
- Department of Neurobiology, Northwestern University, Evanston, IL, 60208, USA
| | - Dmitry Rinberg
- Neuroscience Institute, New York University Langone Health, New York, NY, 10016, USA; Center for Neural Science, New York University, New York, NY, 10003, USA; Department of Physics, New York University, New York, NY 10003, USA.
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4
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Middya S, Curto VF, Fernández‐Villegas A, Robbins M, Gurke J, Moonen EJM, Kaminski Schierle GS, Malliaras GG. Microelectrode Arrays for Simultaneous Electrophysiology and Advanced Optical Microscopy. Adv Sci (Weinh) 2021; 8:2004434. [PMID: 36246164 PMCID: PMC9539726 DOI: 10.1002/advs.202004434] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 03/01/2021] [Indexed: 05/09/2023]
Abstract
Advanced optical imaging techniques address important biological questions in neuroscience, where structures such as synapses are below the resolution limit of a conventional microscope. At the same time, microelectrode arrays (MEAs) are indispensable in understanding the language of neurons. Here, the authors show transparent MEAs capable of recording action potentials from neurons and compatible with advanced microscopy. The electrodes are made of the conducting polymer poly(3,4-ethylenedioxythiophene) doped with polystyrene sulfonate (PEDOT:PSS) and are patterned by optical lithography, ensuring scalable fabrication with good control over device parameters. A thickness of 380 nm ensures low enough impedance and >75% transparency throughout the visible part of the spectrum making them suitable for artefact-free recording in the presence of laser illumination. Using primary neuronal cells, the arrays record single units from multiple nearby sources with a signal-to-noise ratio of 7.7 (17.7 dB). Additionally, it is possible to perform calcium (Ca2+) imaging, a measure of neuronal activity, using the novel transparent electrodes. Different biomarkers are imaged through the electrodes using conventional and super-resolution microscopy (SRM), showing no qualitative differences compared to glass substrates. These transparent MEAs pave the way for harnessing the synergy between the superior temporal resolution of electrophysiology and the selectivity and high spatial resolution of optical imaging.
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Affiliation(s)
- Sagnik Middya
- Department of Chemical Engineering and BiotechnologyUniversity of CambridgeCambridgeCB3 0ASUK
- Electrical Engineering DivisionDepartment of EngineeringUniversity of CambridgeCambridgeCB3 0FFUK
| | - Vincenzo F. Curto
- Electrical Engineering DivisionDepartment of EngineeringUniversity of CambridgeCambridgeCB3 0FFUK
| | - Ana Fernández‐Villegas
- Department of Chemical Engineering and BiotechnologyUniversity of CambridgeCambridgeCB3 0ASUK
| | - Miranda Robbins
- Department of Chemical Engineering and BiotechnologyUniversity of CambridgeCambridgeCB3 0ASUK
| | - Johannes Gurke
- Electrical Engineering DivisionDepartment of EngineeringUniversity of CambridgeCambridgeCB3 0FFUK
| | - Emma J. M. Moonen
- Electrical Engineering DivisionDepartment of EngineeringUniversity of CambridgeCambridgeCB3 0FFUK
- Department of Mechanical EngineeringMicrosystemsEindhoven University of TechnologyEindhoven5600 MBthe Netherlands
| | | | - George G. Malliaras
- Electrical Engineering DivisionDepartment of EngineeringUniversity of CambridgeCambridgeCB3 0FFUK
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5
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Woodington BJ, Curto VF, Yu YL, Martínez-Domínguez H, Coles L, Malliaras GG, Proctor CM, Barone DG. Electronics with shape actuation for minimally invasive spinal cord stimulation. Sci Adv 2021; 7:7/26/eabg7833. [PMID: 34172452 PMCID: PMC8232905 DOI: 10.1126/sciadv.abg7833] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 05/13/2021] [Indexed: 05/18/2023]
Abstract
Spinal cord stimulation is one of the oldest and most established neuromodulation therapies. However, today, clinicians need to choose between bulky paddle-type devices, requiring invasive surgery under general anesthetic, and percutaneous lead-type devices, which can be implanted via simple needle puncture under local anesthetic but offer clinical drawbacks when compared with paddle devices. By applying photo- and soft lithography fabrication, we have developed a device that features thin, flexible electronics and integrated fluidic channels. This device can be rolled up into the shape of a standard percutaneous needle then implanted on the site of interest before being expanded in situ, unfurling into its paddle-type conformation. The device and implantation procedure have been validated in vitro and on human cadaver models. This device paves the way for shape-changing bioelectronic devices that offer a large footprint for sensing or stimulation but are implanted in patients percutaneously in a minimally invasive fashion.
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Affiliation(s)
- Ben J Woodington
- Department of Engineering, University of Cambridge, Trumpington Street, Cambridge, UK
| | - Vincenzo F Curto
- Department of Engineering, University of Cambridge, Trumpington Street, Cambridge, UK
| | - Yi-Lin Yu
- Department of Clinical Neurosciences, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK
- Department of Neurological Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | | | - Lawrence Coles
- Department of Engineering, University of Cambridge, Trumpington Street, Cambridge, UK
| | - George G Malliaras
- Department of Engineering, University of Cambridge, Trumpington Street, Cambridge, UK.
| | - Christopher M Proctor
- Department of Engineering, University of Cambridge, Trumpington Street, Cambridge, UK.
| | - Damiano G Barone
- Department of Engineering, University of Cambridge, Trumpington Street, Cambridge, UK.
- Department of Clinical Neurosciences, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK
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6
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Rochford AE, Carnicer-Lombarte A, Curto VF, Malliaras GG, Barone DG. When Bio Meets Technology: Biohybrid Neural Interfaces. Adv Mater 2020; 32:e1903182. [PMID: 31517403 DOI: 10.1002/adma.201903182] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Revised: 07/06/2019] [Indexed: 06/10/2023]
Abstract
The development of electronics capable of interfacing with the nervous system is a rapidly advancing field with applications in basic science and clinical translation. Devices containing arrays of electrodes can be used in the study of cells grown in culture or can be implanted into damaged or dysfunctional tissue to restore normal function. While devices are typically designed and used exclusively for one of these two purposes, there have been increasing efforts in developing implantable electrode arrays capable of housing cultured cells, referred to as biohybrid implants. Once implanted, the cells within these implants integrate into the tissue, serving as a mediator of the electrode-tissue interface. This biological component offers unique advantages to these implant designs, providing better tissue integration and potentially long-term stability. Herein, an overview of current research into biohybrid devices, as well as the historical background that led to their development are provided, based on the host anatomical location for which they are designed (CNS, PNS, or special senses). Finally, a summary of the key challenges of this technology and potential future research directions are presented.
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Affiliation(s)
- Amy E Rochford
- Electrical Engineering Division, Department of Engineering, University of Cambridge, Cambridge, CB3 0FA, UK
| | | | - Vincenzo F Curto
- Electrical Engineering Division, Department of Engineering, University of Cambridge, Cambridge, CB3 0FA, UK
| | - George G Malliaras
- Electrical Engineering Division, Department of Engineering, University of Cambridge, Cambridge, CB3 0FA, UK
| | - Damiano G Barone
- Electrical Engineering Division, Department of Engineering, University of Cambridge, Cambridge, CB3 0FA, UK
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, CB2 0QQ, UK
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7
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Pas J, Rutz AL, Quilichini PP, Slézia A, Ghestem A, Kaszas A, Donahue MJ, Curto VF, O’Connor RP, Bernard C, Williamson A, Malliaras GG. A bilayered PVA/PLGA-bioresorbable shuttle to improve the implantation of flexible neural probes. J Neural Eng 2018; 15:065001. [DOI: 10.1088/1741-2552/aadc1d] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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8
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Parlak O, Keene ST, Marais A, Curto VF, Salleo A. Molecularly selective nanoporous membrane-based wearable organic electrochemical device for noninvasive cortisol sensing. Sci Adv 2018; 4:eaar2904. [PMID: 30035216 PMCID: PMC6054510 DOI: 10.1126/sciadv.aar2904] [Citation(s) in RCA: 241] [Impact Index Per Article: 40.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 06/04/2018] [Indexed: 05/18/2023]
Abstract
Wearable biosensors have emerged as an alternative evolutionary development in the field of healthcare technology due to their potential to change conventional medical diagnostics and health monitoring. However, a number of critical technological challenges including selectivity, stability of (bio)recognition, efficient sample handling, invasiveness, and mechanical compliance to increase user comfort must still be overcome to successfully bring devices closer to commercial applications. We introduce the integration of an electrochemical transistor and a tailor-made synthetic and biomimetic polymeric membrane, which acts as a molecular memory layer facilitating the stable and selective molecular recognition of the human stress hormone cortisol. The sensor and a laser-patterned microcapillary channel array are integrated in a wearable sweat diagnostics platform, providing accurate sweat acquisition and precise sample delivery to the sensor interface. The integrated devices were successfully used with both ex situ methods using skin-like microfluidics and on human subjects with on-body real-sample analysis using a wearable sensor assembly.
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Affiliation(s)
- Onur Parlak
- Department of Materials Science and Engineering, Stanford University, 450 Serra Mall, Stanford, CA 94305, USA
| | - Scott Tom Keene
- Department of Materials Science and Engineering, Stanford University, 450 Serra Mall, Stanford, CA 94305, USA
| | - Andrew Marais
- Department of Materials Science and Engineering, Stanford University, 450 Serra Mall, Stanford, CA 94305, USA
| | - Vincenzo F. Curto
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, Centre Microélectronique de Provence–École nationale supérieure des mines de Saint-Étienne, Center Microelectronics De Provence Georges Charpak, 880 Avenue de Mimet, Gardanne 13541, France
| | - Alberto Salleo
- Department of Materials Science and Engineering, Stanford University, 450 Serra Mall, Stanford, CA 94305, USA
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9
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Abstract
Three dimensional cell culture systems have witnessed rapid expansion in the fields of tissue engineering and drug testing owing to their inherent ability to mimic native tissue microenvironments. High throughput technologies have also facilitated rapid and reproducible generation of spheroids and subsequently their use as in vitro tissue models in drug screening platforms. However, drug screening technologies are in need of monitoring platforms to study these 3D culture models. In this work we present a novel platform to measure the electrical impedance of 3D spheroids, through the use of a planar organic electrochemical transistor (OECT) and a novel circular-shaped microtrap. A new strategy was generated to overcome incompatibility of the integration of polydimethylsiloxane (PDMS) microdevices with OECT fabrication. The impedance platform for 3D spheroids was tested by using spheroids formed from mono-cultures of fibroblast and epithelial cells, as well as co-culture of the two cell types. We validated the platform by showing its ability to measure the spheroid resistance (Rsph) of the 3D spheroids and differences in Rsph were found to be related to the ion permeability of the spheroid. Additionally, we showed the potential use of the platform for the on-line Rsph monitoring when a co-culture spheroid was exposed to a porogenic agent affecting the integrity of the cell membrane.
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Affiliation(s)
- V F Curto
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 880 Avenue de Mimet, Gardanne 13541, France
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10
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Curto VF, Marchiori B, Hama A, Pappa AM, Ferro MP, Braendlein M, Rivnay J, Fiocchi M, Malliaras GG, Ramuz M, Owens RM. Organic transistor platform with integrated microfluidics for in-line multi-parametric in vitro cell monitoring. Microsyst Nanoeng 2017; 3:17028. [PMID: 31057869 PMCID: PMC6445009 DOI: 10.1038/micronano.2017.28] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 03/31/2017] [Accepted: 04/10/2017] [Indexed: 05/02/2023]
Abstract
Future drug discovery and toxicology testing could benefit significantly from more predictive and multi-parametric readouts from in vitro models. Despite the recent advances in the field of microfluidics, and more recently organ-on-a-chip technology, there is still a high demand for real-time monitoring systems that can be readily embedded with microfluidics. In addition, multi-parametric monitoring is essential to improve the predictive quality of the data used to inform clinical studies that follow. Here we present a microfluidic platform integrated with in-line electronic sensors based on the organic electrochemical transistor. Our goals are two-fold, first to generate a platform to host cells in a more physiologically relevant environment (using physiologically relevant fluid shear stress (FSS)) and second to show efficient integration of multiple different methods for assessing cell morphology, differentiation, and integrity. These include optical imaging, impedance monitoring, metabolite sensing, and a wound-healing assay. We illustrate the versatility of this multi-parametric monitoring in giving us increased confidence to validate the improved differentiation of cells toward a physiological profile under FSS, thus yielding more accurate data when used to assess the effect of drugs or toxins. Overall, this platform will enable high-content screening for in vitro drug discovery and toxicology testing and bridges the existing gap in the integration of in-line sensors in microfluidic devices.
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Affiliation(s)
- Vincenzo F. Curto
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 880 Avenue de Mimet, Gardanne 13541, France
| | - Bastien Marchiori
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 880 Avenue de Mimet, Gardanne 13541, France
- Flexible Electronics Department, Ecole Nationale Supérieure des Mines CMP-EMSE, MOC, 880 Avenue de Mimet, Gardanne 13541, France
| | - Adel Hama
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 880 Avenue de Mimet, Gardanne 13541, France
| | - Anna-Maria Pappa
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 880 Avenue de Mimet, Gardanne 13541, France
| | - Magali P. Ferro
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 880 Avenue de Mimet, Gardanne 13541, France
| | - Marcel Braendlein
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 880 Avenue de Mimet, Gardanne 13541, France
| | - Jonathan Rivnay
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 880 Avenue de Mimet, Gardanne 13541, France
| | - Michel Fiocchi
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 880 Avenue de Mimet, Gardanne 13541, France
| | - George G. Malliaras
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 880 Avenue de Mimet, Gardanne 13541, France
| | - Marc Ramuz
- Flexible Electronics Department, Ecole Nationale Supérieure des Mines CMP-EMSE, MOC, 880 Avenue de Mimet, Gardanne 13541, France
| | - Róisín M. Owens
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 880 Avenue de Mimet, Gardanne 13541, France
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11
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Uguz I, Proctor CM, Curto VF, Pappa AM, Donahue MJ, Ferro M, Owens RM, Khodagholy D, Inal S, Malliaras GG. A Microfluidic Ion Pump for In Vivo Drug Delivery. Adv Mater 2017; 29:1701217. [PMID: 28503731 DOI: 10.1002/adma.201701217] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 03/25/2017] [Indexed: 06/07/2023]
Abstract
Implantable devices offer an alternative to systemic delivery of drugs for the treatment of neurological disorders. A microfluidic ion pump (µFIP), capable of delivering a drug without the solvent through electrophoresis, is developed. The device is characterized in vitro by delivering γ-amino butyric acid to a target solution, and demonstrates low-voltage operation, high drug-delivery capacity, and high ON/OFF ratio. It is also demonstrated that the device is suitable for cortical delivery in vivo by manipulating the local ion concentration in an animal model and altering neural behavior. These results show that µFIPs represent a significant step forward toward the development of implantable drug-delivery systems.
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Affiliation(s)
- Ilke Uguz
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 13541, Gardanne, France
| | - Christopher M Proctor
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 13541, Gardanne, France
| | - Vincenzo F Curto
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 13541, Gardanne, France
| | - Anna-Maria Pappa
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 13541, Gardanne, France
| | - Mary J Donahue
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 13541, Gardanne, France
| | - Magali Ferro
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 13541, Gardanne, France
| | - Róisín M Owens
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 13541, Gardanne, France
| | - Dion Khodagholy
- Department of Electrical Engineering, Columbia University, NY, 10027, USA
| | - Sahika Inal
- Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - George G Malliaras
- Department of Bioelectronics, Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC, 13541, Gardanne, France
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12
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Pappa AM, Curto VF, Braendlein M, Strakosas X, Donahue MJ, Fiocchi M, Malliaras GG, Owens RM. Organic Transistor Arrays Integrated with Finger-Powered Microfluidics for Multianalyte Saliva Testing. Adv Healthc Mater 2016; 5:2295-302. [PMID: 27385673 DOI: 10.1002/adhm.201600494] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Revised: 05/31/2016] [Indexed: 12/28/2022]
Abstract
A compact multianalyte biosensing platform is reported, composed of an organic electrochemical transistor (OECT) microarray integrated with a pumpless "finger-powered" microfluidic, for quantitative screening of glucose, lactate, and cholesterol levels. A biofunctionalization method is designed, which provides selectivity towards specific metabolites as well as minimization of any background interference. In addition, a simple method is developed to facilitate multi-analyte sensing and avoid electrical crosstalk between the different transistors by electrically isolating the individual devices. The resulting biosensing platform, verified using human samples, offers the possibility to be used in easy-to-obtain biofluids with low abundance metabolites, such as saliva. Based on our proposed method, other types of enzymatic biosensors can be integrated into the array to achieve multiplexed, noninvasive, personalized point-of-care diagnostics.
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Affiliation(s)
- Anna-Maria Pappa
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines; CMP-EMSE; MOC 13541 Gardanne France
| | - Vincenzo F. Curto
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines; CMP-EMSE; MOC 13541 Gardanne France
| | - Marcel Braendlein
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines; CMP-EMSE; MOC 13541 Gardanne France
| | - Xenofon Strakosas
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines; CMP-EMSE; MOC 13541 Gardanne France
- Department of Electrical Engineering; University of California; Santa Cruz CA 95064 USA
| | - Mary J. Donahue
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines; CMP-EMSE; MOC 13541 Gardanne France
| | - Michel Fiocchi
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines; CMP-EMSE; MOC 13541 Gardanne France
| | - George G. Malliaras
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines; CMP-EMSE; MOC 13541 Gardanne France
| | - Roisin M. Owens
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines; CMP-EMSE; MOC 13541 Gardanne France
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13
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Gowers SAN, Curto VF, Seneci CA, Wang C, Anastasova S, Vadgama P, Yang GZ, Boutelle MG. 3D Printed Microfluidic Device with Integrated Biosensors for Online Analysis of Subcutaneous Human Microdialysate. Anal Chem 2015; 87:7763-70. [PMID: 26070023 PMCID: PMC4526885 DOI: 10.1021/acs.analchem.5b01353] [Citation(s) in RCA: 130] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
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This
work presents the design, fabrication, and characterization
of a robust 3D printed microfluidic analysis system that integrates
with FDA-approved clinical microdialysis probes for continuous monitoring
of human tissue metabolite levels. The microfluidic device incorporates
removable needle type integrated biosensors for glucose and lactate,
which are optimized for high tissue concentrations, housed in novel
3D printed electrode holders. A soft compressible 3D printed elastomer
at the base of the holder ensures a good seal with the microfluidic
chip. Optimization of the channel size significantly improves the
response time of the sensor. As a proof-of-concept study, our microfluidic
device was coupled to lab-built wireless potentiostats and used to
monitor real-time subcutaneous glucose and lactate levels in cyclists
undergoing a training regime.
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Affiliation(s)
| | | | | | | | - Salzitsa Anastasova
- §School of Engineering and Materials Science, Queen Mary, University of London, Mile End Road, London E1 4NS, United Kingdom
| | - Pankaj Vadgama
- §School of Engineering and Materials Science, Queen Mary, University of London, Mile End Road, London E1 4NS, United Kingdom
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14
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Benito-Lopez F, Antoñana-Díez M, Curto VF, Diamond D, Castro-López V. Modular microfluidic valve structures based on reversible thermoresponsive ionogel actuators. Lab Chip 2014; 14:3530-8. [PMID: 25019339 DOI: 10.1039/c4lc00568f] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
This paper reports for the first time the use of a cross-linked poly(N-isopropylacrylamide) ionogel encapsulating the ionic liquid 1-ethyl-3-methylimidazolium ethyl sulphate as a thermoresponsive and modular microfluidic valve. The ionogel presents superior actuation behaviour to its equivalent hydrogel. Ionogel swelling and shrinking mechanisms and kinetics are investigated as well as the performance of the ionogel when integrated as a valve in a microfluidic device. The modular microfluidic valve demonstrates fully a reversible on-off behaviour without failure for up to eight actuation cycles and a pressure resistance of 1100 mbar.
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15
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Lopez-Ruiz N, Curto VF, Erenas MM, Benito-Lopez F, Diamond D, Palma AJ, Capitan-Vallvey LF. Smartphone-Based Simultaneous pH and Nitrite Colorimetric Determination for Paper Microfluidic Devices. Anal Chem 2014; 86:9554-62. [DOI: 10.1021/ac5019205] [Citation(s) in RCA: 303] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Nuria Lopez-Ruiz
- ECsens-CITIC,
Department of Electronics and Computer Technology, ETSIIT, University of Granada, 18071, Granada, Spain
| | - Vincenzo F. Curto
- Insight:
Centre for Data Analytics, National Centre for Sensor Research, Dublin City University, Dublin Dublin 9, Ireland
| | - Miguel M. Erenas
- Department
of Analytical Chemistry, Campus Fuentenueva, Faculty of Sciences, University of Granada, 18071, Granada, Spain
| | - Fernando Benito-Lopez
- Insight:
Centre for Data Analytics, National Centre for Sensor Research, Dublin City University, Dublin Dublin 9, Ireland
- CIC MicroGUNE, Goiru Kalea
9 Polo Innovación Garaia, 20500, Arrasate-Mondragón, Spain
| | - Dermot Diamond
- Insight:
Centre for Data Analytics, National Centre for Sensor Research, Dublin City University, Dublin Dublin 9, Ireland
| | - Alberto J. Palma
- ECsens-CITIC,
Department of Electronics and Computer Technology, ETSIIT, University of Granada, 18071, Granada, Spain
| | - Luis F. Capitan-Vallvey
- Department
of Analytical Chemistry, Campus Fuentenueva, Faculty of Sciences, University of Granada, 18071, Granada, Spain
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16
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Curto VF, Scheuermann S, Owens RM, Ranganathan V, MacFarlane DR, Benito-Lopez F, Diamond D. Probing the specific ion effects of biocompatible hydrated choline ionic liquids on lactate oxidase biofunctionality in sensor applications. Phys Chem Chem Phys 2014; 16:1841-9. [DOI: 10.1039/c3cp52845f] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Curto VF, Lopez-Ruiz N, Capitan-Vallvey LF, Palma AJ, Benito-Lopez F, Diamond D. Fast prototyping of paper-based microfluidic devices by contact stamping using indelible ink. RSC Adv 2013. [DOI: 10.1039/c3ra43825b] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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18
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Khodagholy D, Curto VF, Fraser KJ, Gurfinkel M, Byrne R, Diamond D, Malliaras GG, Benito-Lopez F, Owens RM. Organic electrochemical transistor incorporating an ionogel as a solid state electrolyte for lactate sensing. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm15716k] [Citation(s) in RCA: 205] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Fraser KJ, Yang SY, Cicoira F, Curto VF, Byrne R, Benito-Lopez F, Khodagholy D, Owens RM, Malliaras GG, Diamond D. Electrochemical transistors with ionic liquids for enzymatic sensing. ACTA ACUST UNITED AC 2011. [DOI: 10.1117/12.894412] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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20
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Curto VF, Coyle S, Byrne R, Diamond D, Benito-Lopez F. Real-Time Sweat Analysis: Concept and Development of an Autonomous Wearable Micro-Fluidic Platform. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.proeng.2011.12.386] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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