Caco-2 cell-derived biomimetic electrochemical biosensor for cholera toxin detection
Copyright © 2023 Elsevier B.V. All rights reserved..
Cholera is a highly contagious and lethal waterborne disease induced by an infection with Vibrio cholerae (V. cholerae) secreting cholera toxin (CTx). Cholera toxin subunit B (CTxB) from the CTx specifically binds with monosialo-tetra-hexosyl-ganglioside (GM1) found on the exterior cell membrane of an enterocyte. Bioinspired by the pathological process of CTx, we developed an electrochemical biosensor with GM1-expressing Caco-2 cell membrane (CCM) on the electrode surface. Briefly, the electrode surface was functionalized with CCM using the vesicle fusion method. We determined the CTxB detection performances of Caco-2 cell membrane-coated biosensor (CCB) using electrochemical impedance spectroscopy (EIS). the CCB had an excellent limit of detection of ∼11.46 nM and a detection range spanning 100 ng/mL - 1 mg/mL. In addition, the CCB showed high selectivity against various interfering molecules, including abundant constituents of intestinal fluid and various bacterial toxins. The long-term stability of the CCBs was also verified for 3 weeks using EIS. Overall, the CCB has excellent potential for practical use such as point-of-care and cost-effective testing for CTxB detection in developing countries.
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2023 |
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Erschienen: |
2023 |
Enthalten in: |
Zur Gesamtaufnahme - volume:226 |
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Enthalten in: |
Biosensors & bioelectronics - 226(2023) vom: 15. Apr., Seite 115105 |
Sprache: |
Englisch |
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Beteiligte Personen: |
Kim, Yonghwan [VerfasserIn] |
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Links: |
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Themen: |
37758-47-7 |
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Anmerkungen: |
Date Completed 24.02.2023 Date Revised 24.02.2023 published: Print-Electronic Citation Status MEDLINE |
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doi: |
10.1016/j.bios.2023.115105 |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
NLM352559950 |
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520 | |a Cholera is a highly contagious and lethal waterborne disease induced by an infection with Vibrio cholerae (V. cholerae) secreting cholera toxin (CTx). Cholera toxin subunit B (CTxB) from the CTx specifically binds with monosialo-tetra-hexosyl-ganglioside (GM1) found on the exterior cell membrane of an enterocyte. Bioinspired by the pathological process of CTx, we developed an electrochemical biosensor with GM1-expressing Caco-2 cell membrane (CCM) on the electrode surface. Briefly, the electrode surface was functionalized with CCM using the vesicle fusion method. We determined the CTxB detection performances of Caco-2 cell membrane-coated biosensor (CCB) using electrochemical impedance spectroscopy (EIS). the CCB had an excellent limit of detection of ∼11.46 nM and a detection range spanning 100 ng/mL - 1 mg/mL. In addition, the CCB showed high selectivity against various interfering molecules, including abundant constituents of intestinal fluid and various bacterial toxins. The long-term stability of the CCBs was also verified for 3 weeks using EIS. Overall, the CCB has excellent potential for practical use such as point-of-care and cost-effective testing for CTxB detection in developing countries | ||
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700 | 1 | |a Jung, Hyo Gi |e verfasserin |4 aut | |
700 | 1 | |a Jang, Jae Won |e verfasserin |4 aut | |
700 | 1 | |a Park, Dongsung |e verfasserin |4 aut | |
700 | 1 | |a Kim, Insu |e verfasserin |4 aut | |
700 | 1 | |a Kim, Jaeheung |e verfasserin |4 aut | |
700 | 1 | |a Lee, Gyudo |e verfasserin |4 aut | |
700 | 1 | |a Hwang, Kyo Seon |e verfasserin |4 aut | |
700 | 1 | |a Kim, Seung-Hyun |e verfasserin |4 aut | |
700 | 1 | |a Lee, Sang Won |e verfasserin |4 aut | |
700 | 1 | |a Lee, Jeong Hoon |e verfasserin |4 aut | |
700 | 1 | |a Yoon, Dae Sung |e verfasserin |4 aut | |
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