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Whole-Cell Detectors of Aromatic Hydrocarbon Contaminants Constructed by Immobilization of Bioreporters on Special Optical Fiber Elements

Identifikátory výsledku

  • Kód výsledku v IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21460%2F20%3A00345266" target="_blank" >RIV/68407700:21460/20:00345266 - isvavai.cz</a>

  • Výsledek na webu

  • DOI - Digital Object Identifier

Alternativní jazyky

  • Jazyk výsledku

    angličtina

  • Název v původním jazyce

    Whole-Cell Detectors of Aromatic Hydrocarbon Contaminants Constructed by Immobilization of Bioreporters on Special Optical Fiber Elements

  • Popis výsledku v původním jazyce

    Whole-cell fiber-optic sensor of toluene was prepared by adsorption of Pseudomonas putida TVA8 bioluminescent bioreporter onto a tapered optical fiber element (OFE). Bioreporter immobilization was facilitated by (3-Aminopropyl)triethoxysilane treatment of the OFE. Repeatability of preparation and response of the active part of biosensor was demonstrated in five trials with different OFE geometries, possessing transmittances up to 5.0%, in which the bioluminescence was induced with toluene solution (26.5 mg L-1) for the period of 2 weeks. Longevity of inductions of the biosensor was tested in over 135 days trial, in which the biosensor was induced 68 times with toluene solution (26.5 mg L-1 ). The intensities of bioluminescence gradually decreased due to release of the adsorbed cells but were significantly higher than background noise of the detector. The intensities of bioluminescence induced with contaminated ground water were lower than in mineral medium with the same content of toluene. Ideal shape of OFE, which maximizes the detected signal, was calculated to be a Frustrum cone. The developed sensor layered with positively induced P. putida TVA8 bioreporters was a reliable detector of toluene. Further experiments also immobilized constitutively bioluminescent cells of Escherichia coli 652T7 on OFEs with polyethyleneimine, repetitively induced with Lauria-Bertani medium.

  • Název v anglickém jazyce

    Whole-Cell Detectors of Aromatic Hydrocarbon Contaminants Constructed by Immobilization of Bioreporters on Special Optical Fiber Elements

  • Popis výsledku anglicky

    Whole-cell fiber-optic sensor of toluene was prepared by adsorption of Pseudomonas putida TVA8 bioluminescent bioreporter onto a tapered optical fiber element (OFE). Bioreporter immobilization was facilitated by (3-Aminopropyl)triethoxysilane treatment of the OFE. Repeatability of preparation and response of the active part of biosensor was demonstrated in five trials with different OFE geometries, possessing transmittances up to 5.0%, in which the bioluminescence was induced with toluene solution (26.5 mg L-1) for the period of 2 weeks. Longevity of inductions of the biosensor was tested in over 135 days trial, in which the biosensor was induced 68 times with toluene solution (26.5 mg L-1 ). The intensities of bioluminescence gradually decreased due to release of the adsorbed cells but were significantly higher than background noise of the detector. The intensities of bioluminescence induced with contaminated ground water were lower than in mineral medium with the same content of toluene. Ideal shape of OFE, which maximizes the detected signal, was calculated to be a Frustrum cone. The developed sensor layered with positively induced P. putida TVA8 bioreporters was a reliable detector of toluene. Further experiments also immobilized constitutively bioluminescent cells of Escherichia coli 652T7 on OFEs with polyethyleneimine, repetitively induced with Lauria-Bertani medium.

Klasifikace

  • Druh

    D - Stať ve sborníku

  • CEP obor

  • OECD FORD obor

    20802 - Bioremediation, diagnostic biotechnologies (DNA chips and biosensing devices) in environmental management

Návaznosti výsledku

  • Projekt

  • Návaznosti

    N - Vyzkumna aktivita podporovana z neverejnych zdroju

Ostatní

  • Rok uplatnění

    2020

  • Kód důvěrnosti údajů

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Údaje specifické pro druh výsledku

  • Název statě ve sborníku

    Instruments and Methods for Biology and Medicine 2020

  • ISBN

    9788001067963

  • ISSN

  • e-ISSN

  • Počet stran výsledku

    7

  • Strana od-do

    10-16

  • Název nakladatele

    České vysoké učení technické v Praze

  • Místo vydání

    Praha

  • Místo konání akce

    Kladno

  • Datum konání akce

    8. 10. 2020

  • Typ akce podle státní příslušnosti

    WRD - Celosvětová akce

  • Kód UT WoS článku