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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Zhang Y, van Doremaele ERW, Ye G, Stevens T, Song J, Chiechi RC, van de Burgt Y. Adaptive Biosensing and Neuromorphic Classification Based on an Ambipolar Organic Mixed Ionic-Electronic Conductor. Adv Mater 2022; 34:e2200393. [PMID: 35334499 DOI: 10.1002/adma.202200393] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [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: 01/13/2022] [Revised: 03/15/2022] [Indexed: 06/14/2023]
Abstract
Organic mixed ionic-electronic conductors (OMIECs) are central to bioelectronic applications such as biosensors, health-monitoring devices, and neural interfaces, and have facilitated efficient next-generation brain-inspired computing and biohybrid systems. Despite these examples, smart and adaptive circuits that can locally process and optimize biosignals have not yet been realized. Here, a tunable sensing circuit is shown that can locally modulate biologically relevant signals like electromyograms (EMGs) and electrocardiograms (ECGs), that is based on a complementary logic inverter combined with a neuromorphic memory element, and that is constructed from a single polymer mixed conductor. It is demonstrated that a small neuromorphic array based on this material effects high classification accuracy in heartbeat anomaly detection. This high-performance material allows for straightforward monolithic integration, which reduces fabrication complexity while also achieving high on/off ratios with excellent ambient p- and n-type stability in transistor performance. This material opens a route toward simple and straightforward fabrication and integration of more sophisticated adaptive circuits for future smart bioelectronics.
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Affiliation(s)
- Yanxi Zhang
- Microsystems, Department of Mechanical Engineering and Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, MB, 5600, The Netherlands
| | - Eveline R W van Doremaele
- Microsystems, Department of Mechanical Engineering and Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, MB, 5600, The Netherlands
| | - 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, P. R. China
- Stratingh Institute for Chemistry, University of Groningen, 9747 AG Groningen, The Netherlands
| | - Tim Stevens
- Microsystems, Department of Mechanical Engineering and Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, MB, 5600, The Netherlands
| | - Jun Song
- Center for Biomedical Optics and Photonics (CBOP) & College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Ryan C Chiechi
- Stratingh Institute for Chemistry, University of Groningen, 9747 AG Groningen, The Netherlands
- Department of Chemistry, North Carolina State University, Raleigh, NC, 27695, USA
| | - Yoeri van de Burgt
- Microsystems, Department of Mechanical Engineering and Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, MB, 5600, The Netherlands
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