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Choi JS, Doo HM, Kim B, Lee SH, Sung SK, Go G, Suarez A, Kim Y, Weon BM, Choi BO, Kim HJ, Kim DH. NanoIEA: A Nanopatterned Interdigitated Electrode Array-Based Impedance Assay for Real-Time Measurement of Aligned Endothelial Cell Barrier Functions. Adv Healthc Mater 2024; 13:e2301124. [PMID: 37820720 PMCID: PMC10841753 DOI: 10.1002/adhm.202301124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 09/18/2023] [Indexed: 10/13/2023]
Abstract
A nanopatterned interdigitated electrode array (nanoIEA)-based impedance assay is developed for quantitative real-time measurement of aligned endothelial cell (EC) barrier functions in vitro. A bioinspired poly(3,4-dihydroxy-L-phenylalanine) (poly (l-DOPA)) coating is applied to improve the human brain EC adhesion onto the Nafion nanopatterned surfaces. It is found that a poly (l-DOPA)-coated Nafion grooved nanopattern makes the human brain ECs orient along the nanopattern direction. Aligned human brain ECs on Nafion nanopatterns exhibit increased expression of genes encoding tight and adherens junction proteins. Aligned human brain ECs also have enhanced impedance and resistance versus unaligned ones. Treatment with a glycogen synthase kinase-3 inhibitor (GSK3i) further increases impedance and resistance, suggesting synergistic effects occur on the cell-cell tightness of in vitro human brain ECs via a combination of anisotropic matrix nanotopography and GSK3i treatment. It is found that this enhanced cell-cell tightness of the combined approach is accompanied by increased expression of claudin protein. These data demonstrate that the proposed nanoIEA assay integrated with poly (l-DOPA)-coated Nafion nanopatterns and interdigitated electrode arrays can make not only biomimetic aligned ECs, but also enable real-time measurement of the enhanced barrier functions of aligned ECs via tighter cell-cell junctions.
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Affiliation(s)
- Jong Seob Choi
- Department of Biomedical Engineering, Center for Microphysiological Systems, Johns Hopkins University, Baltimore, MD, 21205, USA
- Division of Advanced Materials Engineering, Kongju National University, Cheonan, Chungnam, 31080, South Korea
| | - Hyun Myung Doo
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, 06351, South Korea
- Department of Biomedical Research Center, Korea University Guro Hospital, Seoul, 08308, South Korea
- Division of Medical Oncology, Department of Internal Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, 08308, South Korea
| | - Byunggik Kim
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - Su Han Lee
- Digital Health Care Research Center, Gumi Electronics and Information Technology Research Institute (GERI), Gumi, Gyeongbuk, 39253, South Korea
| | - Sang-Keun Sung
- Digital Health Care Research Center, Gumi Electronics and Information Technology Research Institute (GERI), Gumi, Gyeongbuk, 39253, South Korea
| | - Gwangjun Go
- Department of Biomedical Engineering, Center for Microphysiological Systems, Johns Hopkins University, Baltimore, MD, 21205, USA
- Department of Mechanical Engineering, Chosun University, Gwangju, 61452, South Korea
| | - Allister Suarez
- Department of Biomedical Engineering, Center for Microphysiological Systems, Johns Hopkins University, Baltimore, MD, 21205, USA
| | - Yeseul Kim
- SKKU Advanced Institute of Nanotechnology (SAINT), School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, 16419, South Korea
| | - Byung Mook Weon
- SKKU Advanced Institute of Nanotechnology (SAINT), School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, 16419, South Korea
| | - Byung-Ok Choi
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, 06351, South Korea
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, 06351, South Korea
| | - Hyung Jin Kim
- School of Electrical and Electronic Engineering, Ulsan College, Ulsan, 44610, South Korea
| | - Deok-Ho Kim
- Department of Biomedical Engineering, Center for Microphysiological Systems, Johns Hopkins University, Baltimore, MD, 21205, USA
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
- Institute for Nanobiotechnology, Johns Hopkins University, Baltimore, MD, 21218, USA
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Bunkin NF, Bolotskova PN, Bondarchuk EV, Gryaznov VG, Kozlov VA, Okuneva MA, Ovchinnikov OV, Smoliy OP, Turkanov IF, Galkina CA, Dmitriev AS, Seliverstov AF. Stochastic Ultralow-Frequency Oscillations of the Luminescence Intensity from the Surface of a Polymer Membrane Swelling in Aqueous Salt Solutions. Polymers (Basel) 2022; 14:polym14040688. [PMID: 35215601 PMCID: PMC8874797 DOI: 10.3390/polym14040688] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Revised: 02/03/2022] [Accepted: 02/08/2022] [Indexed: 02/04/2023] Open
Abstract
Photoluminescence from the surface of a Nafion polymer membrane upon swelling in isotonic aqueous solutions and Milli-Q water has been studied. Liquid samples were preliminarily processed by electric pulses with a duration of 1 μs and an amplitude of 0.1 V using an antenna in the form of a flat capacitor; experiments on photoluminescent spectroscopy were carried out 20 min after this treatment. A typical dependence of the luminescence intensity, I, on the swelling time, t, obeys an exponentially decaying function. The characteristic decay time of these functions and the stationary level of luminescence intensity depend on the repetition rate of electrical pulses, and the obtained dependences are well reproduced. It transpired that, at certain pulse repetition rates, the dependence, I(t), is a random function, and there is no reproducibility. Stochastic effects are associated with a random external force of an electromagnetic nature that acts on a polymer membrane during swelling. The source of this random force, in our opinion, is low-frequency pulsations of neutron stars or white dwarfs.
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Affiliation(s)
- Nikolai F. Bunkin
- Department of Fundamental Sciences, Bauman Moscow State Technical University, 2nd Baumanskaya Str. 5, 105005 Moscow, Russia; (P.N.B.); (V.A.K.); (M.A.O.)
- Prokhorov General Physics Institute, Russian Academy of Sciences, Vavilova Str. 38, 119991 Moscow, Russia
- Correspondence:
| | - Polina N. Bolotskova
- Department of Fundamental Sciences, Bauman Moscow State Technical University, 2nd Baumanskaya Str. 5, 105005 Moscow, Russia; (P.N.B.); (V.A.K.); (M.A.O.)
- Prokhorov General Physics Institute, Russian Academy of Sciences, Vavilova Str. 38, 119991 Moscow, Russia
| | - Elena V. Bondarchuk
- “Concern GRANIT”, Gogolevsky Blvd., 31, 2, 119019 Moscow, Russia; (E.V.B.); (V.G.G.); (O.V.O.); (O.P.S.); (I.F.T.); (C.A.G.)
| | - Valery G. Gryaznov
- “Concern GRANIT”, Gogolevsky Blvd., 31, 2, 119019 Moscow, Russia; (E.V.B.); (V.G.G.); (O.V.O.); (O.P.S.); (I.F.T.); (C.A.G.)
| | - Valeriy A. Kozlov
- Department of Fundamental Sciences, Bauman Moscow State Technical University, 2nd Baumanskaya Str. 5, 105005 Moscow, Russia; (P.N.B.); (V.A.K.); (M.A.O.)
- Prokhorov General Physics Institute, Russian Academy of Sciences, Vavilova Str. 38, 119991 Moscow, Russia
| | - Maria A. Okuneva
- Department of Fundamental Sciences, Bauman Moscow State Technical University, 2nd Baumanskaya Str. 5, 105005 Moscow, Russia; (P.N.B.); (V.A.K.); (M.A.O.)
- Prokhorov General Physics Institute, Russian Academy of Sciences, Vavilova Str. 38, 119991 Moscow, Russia
| | - Oleg V. Ovchinnikov
- “Concern GRANIT”, Gogolevsky Blvd., 31, 2, 119019 Moscow, Russia; (E.V.B.); (V.G.G.); (O.V.O.); (O.P.S.); (I.F.T.); (C.A.G.)
| | - Oleg P. Smoliy
- “Concern GRANIT”, Gogolevsky Blvd., 31, 2, 119019 Moscow, Russia; (E.V.B.); (V.G.G.); (O.V.O.); (O.P.S.); (I.F.T.); (C.A.G.)
| | - Igor F. Turkanov
- “Concern GRANIT”, Gogolevsky Blvd., 31, 2, 119019 Moscow, Russia; (E.V.B.); (V.G.G.); (O.V.O.); (O.P.S.); (I.F.T.); (C.A.G.)
| | - Catherine A. Galkina
- “Concern GRANIT”, Gogolevsky Blvd., 31, 2, 119019 Moscow, Russia; (E.V.B.); (V.G.G.); (O.V.O.); (O.P.S.); (I.F.T.); (C.A.G.)
| | - Alexandr S. Dmitriev
- Kotelnikov Institute of Radio Engineering and Electronics of the Russian Academy of Sciences, Mokhovaya 11, 7, 125009 Moscow, Russia;
| | - Alexandr F. Seliverstov
- Frumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences, Leninsky Prospect 31, 4, 119071 Moscow, Russia;
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Choi JS, KIM BYUNGGIK, Go G, Kim DH. Sensitivity enhancement of impedance-based cellular biosensor by nanopatterned PEDOT:Nafion interface. Chem Commun (Camb) 2022; 58:10012-10015. [DOI: 10.1039/d2cc01703b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A nanopatterned PEDOT:Nafion composite layer integrated with interdigitated electrodes was developed to improve the device dynamic range and sensitivity for cellular impedance spectroscopy. The nanopattern fidelity to provide cellular alignment...
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