2010
Development of an enzymatic fiber-optic biosensor for detection of halogenated hydrocarbons.
BIDMANOVÁ, Šárka; Radka CHALOUPKOVÁ; Jiří DAMBORSKÝ a Zbyněk PROKOPZákladní údaje
Originální název
Development of an enzymatic fiber-optic biosensor for detection of halogenated hydrocarbons.
Vydání
Analytical and Bioanalytical Chemistry, Springer-Verlag, 2010, 1618-2642
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10600 1.6 Biological sciences
Stát vydavatele
Německo
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 3.841
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14310/10:00040599
Organizační jednotka
Přírodovědecká fakulta
UT WoS
Klíčová slova česky
Enzyme-based biosensor; Haloalkán dehalogenáza; Halogenované uhlovodíky; Optické biosensory; pH indikátory
Klíčová slova anglicky
Enzyme-based biosensor; Haloalkane dehalogenase; Halogenated hydrocarbons; Optical biosensor; pH indicator
Změněno: 23. 3. 2012 10:58, prof. Mgr. Jiří Damborský, Dr.
Anotace
V originále
An enzyme-based biosensor was developed by co-immobilization of purified enzyme haloalkane dehalogenase (EC 3.8.1.5) and a fluorescence pH indicator on the tip of an optical fiber. Haloalkane dehalogenase catalyzes hydrolytic dehalogenation of halogenated aliphatic hydrocarbons, which is accompanied by a pH change influencing the fluorescence of the indicator. The pH sensitivity of several fluorescent dyes was evaluated. The selected indicator 5(6)-carboxyfluorescein was conjugated with bovine serum albumin and its reaction was tested under different immobilization conditions. The biosensor was prepared by cross-linking of the conjugate in tandem with haloalkane dehalogenase using glutaraldehyde vapor. The biosensor, stored for 24 h in 50 mM phosphate buffer (pH 7.5) prior to measurement, was used after 15 min of equilibration, the halogenated compound was added, and the response was monitored for 30 min. Calibration of the biosensor with 1,2-dibromoethane and 3-chloro-2-(chloromethyl)- 1-propene showed an excellent linear dependence, with detection limits of 0.133 and 0.014 mM, respectively. This biosensor provides a new tool for continuous in situ monitoring of halogenated environmental pollutants.
Návaznosti
| ED0001/01/01, projekt VaV |
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| IAA401630901, projekt VaV |
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| MSM0021622412, záměr |
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