1
|
Shaik FA, Ihida S, Ikeuchi Y, Tixier-Mita A, Toshiyoshi H. TFT sensor array for real-time cellular characterization, stimulation, impedance measurement and optical imaging of in-vitro neural cells. Biosens Bioelectron 2020; 169:112546. [PMID: 32911315 DOI: 10.1016/j.bios.2020.112546] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [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: 06/09/2020] [Revised: 08/20/2020] [Accepted: 08/22/2020] [Indexed: 12/14/2022]
Abstract
Real-time in-vitro multi-modality characterization of neuronal cell ensemble involves highly complex interdependent phenomena and processes. Although a variety of microelectrode arrays (MEAs) have been reported, diagnosis techniques are limited in term of sensing area, optical transparency, resolution and number of modalities. This paper presents an optically transparent thin-film-transistor (TFT) array biosensor chip for neuronal ensemble investigation, in which TFT electrodes are used for six modalities including extracellular voltage recording of both action potential (AP) and local field potential (LFP), current or voltage stimulation, chemical stimulation, electrical impedance measurement, and optical imaging. The sensor incorporates a large sensing area (15.6 mm × 15.6 mm) with a 200 × 150 array of indium-tin-oxide (ITO) electrodes placed at a 50 μm or 100 μm pixel pitch and with 10 ms temporal resolution; these performances are comparable to the state-of-the-art MEA devices. The TFT electrode array is designed based on the switch matrix architecture. The reliability and stability of TFTs are examined by measuring their electrical characteristics. Impedance spectroscopy function is verified by mapping the neuron position and the status (cells alive or dead, contamination) on the electrodes, which facilitates the biochemical studies in electrical domain that adds quantitative views to visual observation of cells through the optical microscopy. An in-vitro neuron culture is studied using electrophysiological, electrochemical, and optical characterization. Detailed signal analysis is demonstrated to prove the capability of bioassay.
Collapse
Affiliation(s)
- Faruk Azam Shaik
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro, Tokyo, 153-8505, Japan; UMR 8161, Faculty of Medicine, University of Lille, France.
| | - Satoshi Ihida
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro, Tokyo, 153-8505, Japan; Sharp Corporation, 1-2-3 Shibaura, Minato, Tokyo, 105-0023, Japan
| | - Yoshiho Ikeuchi
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro, Tokyo, 153-8505, Japan
| | - Agnès Tixier-Mita
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro, Tokyo, 153-8505, Japan
| | - Hiroshi Toshiyoshi
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro, Tokyo, 153-8505, Japan
| |
Collapse
|
2
|
Cathcart GA, Tixier-Mita A, Ihida S, Eiler AC, Toshiyoshi H. Non-Mutative Cell Viability Measurement on an IGZO Transparent Thin Film Transistor Electrode Array. ACTA ACUST UNITED AC 2020. [DOI: 10.1541/ieejsmas.140.193] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Grant A. Cathcart
- Research Center for Advanced Science and Technology (RCAST), The University of Tokyo
| | - Agnes Tixier-Mita
- Research Center for Advanced Science and Technology (RCAST), The University of Tokyo
- Institute of Industrial Science (IIS), The University of Tokyo
| | - Satoshi Ihida
- Institute of Industrial Science (IIS), The University of Tokyo
| | - Anne-Claire Eiler
- Research Center for Advanced Science and Technology (RCAST), The University of Tokyo
| | | |
Collapse
|
3
|
Leclerc E, Duval JL, Egles C, Ihida S, Toshiyoshi H, Tixier-Mita A. In vitro cyto-biocompatibility study of thin-film transistors substrates using an organotypic culture method. J Mater Sci Mater Med 2017; 28:4. [PMID: 27878736 DOI: 10.1007/s10856-016-5815-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Accepted: 11/14/2016] [Indexed: 06/06/2023]
Abstract
Thin-Film-Transistors Liquid-Crystal Display has become a standard in the field of displays. However, the structure of these devices presents interest not only in that field, but also for biomedical applications. One of the key components, called here TFT substrate, is a glass substrate with a dense and large array of thousands of transparent micro-electrodes that can be considered as a large scale multi-electrode array(s). Multi-electrode array(s) are widely used for in vitro electrical investigations on neurons and brain, allowing excitation, registration, and recording of their activity. However, the range of application of conventional multi-electrode array(s) is usually limited to some tens of cells in a homogeneous cell culture, because of a small area, small number and a low density of the micro-electrodes. TFT substrates do not have these limitations and the authors are currently studying the possibility to use TFT substrates as new tools for in vitro electrical investigation on tissues and organoids. In this respect, experiments to determine the cyto-biocompatibility of TFT substrates with tissues were conducted and are presented in this study. The investigation was performed using an organotypic culture method with explants of brain and liver tissues of chick embryos. The results in term of morphology, cell migration, cell density and adhesion were compared with the results from Thermanox®, a conventional plastic for cell culture, and with polydimethylsiloxane, a hydrophobic silicone. The results with TFT substrates showed similar results as for the Thermanox®, despite the TFT hydrophobicity. TFT substrates have a weak cell adhesion and promote cell migration similarly to Thermanox®. It could be concluded that the TFT substrates are cyto-biocompatible with the two studied organs.
Collapse
Affiliation(s)
- Eric Leclerc
- Sorbonne universités, Université de Technologie de Compiègne, CNRS, UMR 7338, Biomécanique et Bioingénierie, Centre de recherche Royallieu, CS 60319, Compiègne cedex, 60203, France
- Laboratory for Integrated Micro Mechatronic Systems, Institute of Industrial Sciences, University of Tokyo, CNRS UMI 2820, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505, Japan
| | - Jean-Luc Duval
- Sorbonne universités, Université de Technologie de Compiègne, CNRS, UMR 7338, Biomécanique et Bioingénierie, Centre de recherche Royallieu, CS 60319, Compiègne cedex, 60203, France
| | - Christophe Egles
- Sorbonne universités, Université de Technologie de Compiègne, CNRS, UMR 7338, Biomécanique et Bioingénierie, Centre de recherche Royallieu, CS 60319, Compiègne cedex, 60203, France
- Department of Oral and Maxillofacial Pathology, Tufts University, School of Dental Medicine, Boston, MA, USA
| | - Satoshi Ihida
- Institute of Industrial Sciences, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505, Japan
| | - Hiroshi Toshiyoshi
- Laboratory for Integrated Micro Mechatronic Systems, Institute of Industrial Sciences, University of Tokyo, CNRS UMI 2820, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505, Japan
- Institute of Industrial Sciences, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505, Japan
| | - Agnès Tixier-Mita
- Laboratory for Integrated Micro Mechatronic Systems, Institute of Industrial Sciences, University of Tokyo, CNRS UMI 2820, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505, Japan.
- Institute of Industrial Sciences, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505, Japan.
| |
Collapse
|