Evidence map›Paper›PMID 34937934›Full record

ArticleNature nanotechnology2022

Full-bandwidth electrophysiology of seizures and epileptiform activity enabled by flexible graphene microtransistor depth neural probes.

Andrea Bonaccini Calia, Eduard Masvidal-Codina, Trevor M Smith, Nathan Schäfer, Daman Rathore, Elisa Rodríguez-Lucas, Xavi Illa, Jose M De la Cruz, Elena Del Corro, Elisabet Prats-Alfonso and 18 more

Open access · greenAbstract read
PubMed Publisher
In one paragraph

Article in Nature nanotechnology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed
7.5field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

49 citing papers in PubMed, 108 citations in OpenAlex.

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  7. "Tone-Arm" Neuromodulation MEMS Microcoil for In Vivo Imaging.Small (Weinheim an der Bergstrasse, Germany) · 2026
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  9. Multimodal Layer-Crossing Interrogation of Brain Circuits Enabled by Microfluidic Axialtrodes.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

28 authors at 8 institutions in 3 countries.

Andrea Bonaccini CaliaCatalan Institute of Nanoscience and Nanotechnology, CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, Spain.
Eduard Masvidal-CodinaInstitut de Microelectrònica de Barcelona, IMB-CNM (CSIC), Bellaterra, Spain.
Trevor M SmithDepartment of Clinical and Experimental Epilepsy, Queen Square Institute of Neurology, University College London, London, UK.ORCID http://orcid.org/0000-0002-5495-8906
Nathan SchäferCatalan Institute of Nanoscience and Nanotechnology, CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, Spain.
Daman RathoreDepartment of Clinical and Experimental Epilepsy, Queen Square Institute of Neurology, University College London, London, UK.ORCID http://orcid.org/0000-0002-6301-9927
Elisa Rodríguez-LucasCatalan Institute of Nanoscience and Nanotechnology, CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, Spain.
Xavi IllaInstitut de Microelectrònica de Barcelona, IMB-CNM (CSIC), Bellaterra, Spain.ORCID http://orcid.org/0000-0002-3212-1128
Jose M De la CruzCatalan Institute of Nanoscience and Nanotechnology, CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, Spain.
Elena Del CorroCatalan Institute of Nanoscience and Nanotechnology, CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, Spain.ORCID http://orcid.org/0000-0001-6452-9139
Elisabet Prats-AlfonsoInstitut de Microelectrònica de Barcelona, IMB-CNM (CSIC), Bellaterra, Spain.ORCID http://orcid.org/0000-0002-7320-1896
Damià VianaCatalan Institute of Nanoscience and Nanotechnology, CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, Spain.
Jessica BousquetCatalan Institute of Nanoscience and Nanotechnology, CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, Spain.
Clement HébertCatalan Institute of Nanoscience and Nanotechnology, CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, Spain.
Javier Martínez-AguilarInstitut de Microelectrònica de Barcelona, IMB-CNM (CSIC), Bellaterra, Spain.
Justin R SperlingCatalan Institute of Nanoscience and Nanotechnology, CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, Spain.ORCID http://orcid.org/0000-0002-1708-2474
Matthew DrummondNanomedicine Lab, National Graphene Institute and Faculty of Biology Medicine and Health, University of Manchester, Manchester, UK.ORCID http://orcid.org/0000-0001-6804-1333
Arnab HalderNanomedicine Lab, National Graphene Institute and Faculty of Biology Medicine and Health, University of Manchester, Manchester, UK.ORCID http://orcid.org/0000-0003-3606-3532
Abbie DoddNanomedicine Lab, National Graphene Institute and Faculty of Biology Medicine and Health, University of Manchester, Manchester, UK.
Katharine BarrNanomedicine Lab, National Graphene Institute and Faculty of Biology Medicine and Health, University of Manchester, Manchester, UK.
Sinead SavageNanomedicine Lab, National Graphene Institute and Faculty of Biology Medicine and Health, University of Manchester, Manchester, UK.
Jordina FornellDepartament de Fisica, Universitat Autonoma de Barcelona, Barcelona, Spain.
Jordi SortDepartament de Fisica, Universitat Autonoma de Barcelona, Barcelona, Spain.
Christoph Gugerg.tec medical engineering, Guger Technologies, Schiedlberg, Austria.ORCID http://orcid.org/0000-0001-6468-8500
Rosa VillaInstitut de Microelectrònica de Barcelona, IMB-CNM (CSIC), Bellaterra, Spain.ORCID http://orcid.org/0000-0003-2735-3204
Kostas KostarelosCatalan Institute of Nanoscience and Nanotechnology, CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, Spain.ORCID http://orcid.org/0000-0002-2224-6672
Rob C WykesDepartment of Clinical and Experimental Epilepsy, Queen Square Institute of Neurology, University College London, London, UK. r.wykes@ucl.ac.uk.ORCID http://orcid.org/0000-0002-6141-6822
Anton Guimerà-BrunetInstitut de Microelectrònica de Barcelona, IMB-CNM (CSIC), Bellaterra, Spain. anton.guimera@imb-cnm.csic.es.ORCID http://orcid.org/0000-0003-1768-3293
Jose A GarridoCatalan Institute of Nanoscience and Nanotechnology, CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, Spain. joseantonio.garrido@icn2.cat.ORCID http://orcid.org/0000-0001-5621-1067
Institut Català de Nanociència i Nanotecnologia · ESBiomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine · ESUniversity of Manchester · GBInstitució Catalana de Recerca i Estudis Avançats · ESNational Hospital for Neurology and Neurosurgery · GBGuger Technologies (Austria) · ATManchester Academic Health Science Centre · GBUniversitat Autònoma de Barcelona · ES

Funding

Biotechnology and Biological Sciences Research Council
6 · The paper itself

Abstract

Mapping the entire frequency bandwidth of brain electrophysiological signals is of paramount importance for understanding physiological and pathological states. The ability to record simultaneously DC-shifts, infraslow oscillations (<0.1 Hz), typical local field potentials (0.1-80 Hz) and higher frequencies (80-600 Hz) using the same recording site would particularly benefit preclinical epilepsy research and could provide clinical biomarkers for improved seizure onset zone delineation. However, commonly used metal microelectrode technology suffers from instabilities that hamper the high fidelity of DC-coupled recordings, which are needed to access signals of very low frequency. In this study we used flexible graphene depth neural probes (gDNPs), consisting of a linear array of graphene microtransistors, to concurrently record DC-shifts and high-frequency neuronal activity in awake rodents. We show here that gDNPs can reliably record and map with high spatial resolution seizures, pre-ictal DC-shifts and seizure-associated spreading depolarizations together with higher frequencies through the cortical laminae to the hippocampus in a mouse model of chemically induced seizures. Moreover, we demonstrate the functionality of chronically implanted devices over 10 weeks by recording with high fidelity spontaneous spike-wave discharges and associated infraslow oscillations in a rat model of absence epilepsy. Altogether, our work highlights the suitability of this technology for in vivo electrophysiology research, and in particular epilepsy research, by allowing stable and chronic DC-coupled recordings.

Indexed as

EpilepsyGraphiteAnimalsElectroencephalographyMiceMicroelectrodesRatsSeizuresGraphite

Identifiers

PMID34937934
OpenAlexW4220856163

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.