C 2005

Electrochemical immunosensor for detection of Francisella tularensis

SKLÁDAL, Petr, Yveta SYMERSKÁ, Miroslav POHANKA, Bohuslav ŠAFÁŘ, Aleš MACELA et. al.

Basic information

Original name

Electrochemical immunosensor for detection of Francisella tularensis

Name in Czech

Elektrochemický imunosensor pro detekci Francisella tularensis

Authors

SKLÁDAL, Petr (203 Czech Republic, guarantor), Yveta SYMERSKÁ (203 Czech Republic), Miroslav POHANKA (203 Czech Republic), Bohuslav ŠAFÁŘ (203 Czech Republic) and Aleš MACELA (203 Czech Republic)

Edition

1. vyd. Dordrecht, The Netherlands, Defense against bioterror, p. 221-232, 12 pp. NATO Security through science ser. B, 2005

Publisher

Springer

Other information

Language

English

Type of outcome

Kapitola resp. kapitoly v odborné knize

Field of Study

10600 1.6 Biological sciences

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

RIV identification code

RIV/00216224:14310/05:00015144

Organization unit

Faculty of Science

ISBN

1-4020-3385-0

UT WoS

000236493200017

Keywords in English

Biosensor; Biodetection; Biological agent
Změněno: 28/4/2006 12:47, prof. RNDr. Petr Skládal, CSc.

Abstract

V originále

The immunosensor for rapid and sensitive detection of Francisella tularensis (Ft) was developed using screen-printed sensors with multiple (4) Au working electrodes. The sensing zones were modified with a biolayer of anti-Ft polyclonal antibody attached through the covalently immobilized Protein A. The sandwich assay format was employed with anti-Ft IgG-peroxidase conjugate as tracer. For electrochemical measurements, an automated portable detector was developed; it consisted of a digitally controlled potentiostat and four embedded miniperistaltic pumps. The flow-through measurement involved sequential incubations with sample (10 min), tracer (10 min) and substrate mixture (iodide and hydrogen peroxide). The enzymatically-produced iodine was detected electrochemically at - 50 mV. The limit of detection was 100 Ft cells/ml; the response was significantly higher (3x) when using the living cells compared to the heat inactivated ones.

In Czech

Byl vyvinut elektrochemický imunosensor pro rychlou detekci bakterie Francisella tularensis, patřící mezi biologické bojové prostředky.

Links

MSM0021622413, plan (intention)
Name: Proteiny v metabolismu a při interakci organismů s prostředím
Investor: Ministry of Education, Youth and Sports of the CR, Proteins in metabolism and interaction of organisms with the environment