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      • Record: found
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      Correction: Ha, Y. et al. Hemispherical Microelectrode Array for Ex Vivo Retinal Neural Recording. Micromachines 2020, 11, 538

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      Author(s): 1 , 1 , 2 , 1 , 3 , *
      Publication date (Electronic):
      Journal: Micromachines
      Publisher: MDPI

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          Abstract

          The authors would like to make the following changes to the published paper [1]: the ethic code in the last line of Section 2.8.1 (page 8) should be “IACUC 19-025”: “The experimental procedures and the care of the animals were approved by the Institutional Animal Care and Use Committee (IACUC) of EwhaWomans University (IACUC 19-025).” The change does not affect the scientific results. The manuscript will be updated and the original version will remain online on the article webpage with a reference to this correction.

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          Hemispherical Microelectrode Array for Ex Vivo Retinal Neural Recording

          Yoonhee P Ha, Hyun-Ji Yoo, Soowon Shin … (2020)
          To investigate the neuronal visual encoding process in the retina, researchers have performed in vitro and ex vivo electrophysiological experiments using animal retinal tissues. The microelectrode array (MEA) has become a key component in retinal experiments because it enables simultaneous neural recording from a population of retinal neurons. However, in most retinal experiments, it is inevitable that the retinal tissue is flattened on the planar MEA, becoming deformed from the original hemispherical shape. During the tissue deforming process, the retina is subjected to mechanical stress, which can induce abnormal physiological conditions. To overcome this problem, in this study, we propose a hemispherical MEA with a curvature that allows retinal tissues to adhere closely to electrodes without tissue deformation. The electrode array is fabricated by stretching a thin, flexible polydimethylsiloxane (PDMS) electrode layer onto a hemispherical substrate. To form micro patterns of electrodes, laser processing is employed instead of conventional thin-film microfabrication processes. The feasibility for neural recording from retinal tissues using this array is shown by conducting ex vivo retinal experiments. We anticipate that the proposed techniques for hemispherical MEAs can be utilized not only for ex vivo retinal studies but also for various flexible electronics.
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            Author and article information

            Journal
            Journal ID (nlm-ta): Micromachines (Basel)
            Journal ID (iso-abbrev): Micromachines (Basel)
            Journal ID (publisher-id): micromachines
            Title: Micromachines
            Publisher: MDPI
            ISSN (Electronic): 2072-666X
            Publication date (Electronic): 24 July 2020
            Publication date Collection: August 2020
            Publication date PMC-release: 24 July 2020
            Volume: 11
            Issue: 8
            Electronic Location Identifier: 720
            Affiliations
            [1 ]Department of Electronic and Electrical Engineering, Ewha Womans University, Seoul 03760, Korea; yoonhee0127@ 123456gmail.com (Y.H.); dibbe@ 123456ewhain.net (H.-J.Y.)
            [2 ]Department of Bioengineering, TODOC Co., Ltd., Seoul 08394, Korea; swshin@ 123456to-doc.com
            [3 ]Department of Brain and Cognitive Sciences, Ewha Womans University, Seoul 03760, Korea
            Author notes
            [* ]Correspondence: juns@ 123456ewha.ac.kr ; Tel.: +82-2-3277-3892
            Author information
            https://orcid.org/0000-0003-3912-250X
            Article
            Publisher ID: micromachines-11-00720
            DOI: 10.3390/mi11080720
            PMC ID: 7464979
            PubMed ID: 32722193
            SO-VID: a761a794-c5d9-425c-b639-db0f26beedd5
            Copyright © © 2020 by the authors.
            License:

            Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license ( http://creativecommons.org/licenses/by/4.0/).

            History
            Date received : 14 July 2020
            Date accepted : 21 July 2020
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            Subject: Correction

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