Piezoelektrický imunosensor pro detekci Franciselly tularensis použitím imunoglobulinu M v limitním ředění

Kód výsledku v IS VaVaI

RIV/00216224:14310/05:00013671 - isvavai.cz

Nalezeny alternativní kódy

RIV/00000493:G41__/05:25152

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Piezoelectric immunosensor for Francisella tularensis detection using immunoglobulin M in a limiting dilution

Popis výsledku v původním jazyce

Francisella tularensis is a pathogenic bacterium causing the serious disease tularemia and is potentially considered as a bioweapon agent. The piezoelectric immunosensor for F. tularensis (Ft) assay was developed using the quartz crystal microbalance (QCM) with covalently immobilized Ft antigen. Samples containing the bacterium were preincubated with a highly diluted anti-Ft IgM, and the mixture was injected to the flow cell containing the immunosensor. IgM alone as well as Ft cells alone were not giving any response, and therefore, it is assumed that the sensor responded to the IgM(x)-Ft(y) complex formed during the preincubation step. The effects of pH, time of preincubation, and IgM concentration were tested. This rapid method allowed us to detect 5(.) 10(6) Ft cells/mL. RSD of measurements was near 1%. The total time of one analysis was 35 min, and one sensor was used for more than 30 times without losing sensitivity.

Název v anglickém jazyce

Piezoelectric immunosensor for Francisella tularensis detection using immunoglobulin M in a limiting dilution

Popis výsledku anglicky

Francisella tularensis is a pathogenic bacterium causing the serious disease tularemia and is potentially considered as a bioweapon agent. The piezoelectric immunosensor for F. tularensis (Ft) assay was developed using the quartz crystal microbalance (QCM) with covalently immobilized Ft antigen. Samples containing the bacterium were preincubated with a highly diluted anti-Ft IgM, and the mixture was injected to the flow cell containing the immunosensor. IgM alone as well as Ft cells alone were not giving any response, and therefore, it is assumed that the sensor responded to the IgM(x)-Ft(y) complex formed during the preincubation step. The effects of pH, time of preincubation, and IgM concentration were tested. This rapid method allowed us to detect 5(.) 10(6) Ft cells/mL. RSD of measurements was near 1%. The total time of one analysis was 35 min, and one sensor was used for more than 30 times without losing sensitivity.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CE - Biochemie

OECD FORD obor

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Projekt

OBVTUO2003001: PROTILÁTKY 2 - Imunosenzory bojových chemických látek a bojových biologických prostředků

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2005

Kód důvěrnosti údajů

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

Název periodika

Analytical Letters

ISSN

0003-2719

e-ISSN

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Svazek periodika

38

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

12

Strana od-do

411-422

Kód UT WoS článku

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EID výsledku v databázi Scopus

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