Analysis of the microbial cell-Ab binding in buffer solution by the piezoelectric resonator.
Anal Biochem
; 554: 53-60, 2018 08 01.
Article
em En
| MEDLINE
| ID: mdl-29870693
ABSTRACT
The possibility of the registration of the interaction of the cells Azospirillum lipoferum Sp59b with the specific antibodies directly in the conducting suspensions by using an acoustic sensor was shown. The main element of the sensor is a piezoelectric resonator with a lateral electric field. The analysis is based on a comparison of the resonator's electrical impedance before and after the specific biological interaction between the cells and antibodies. By using this sensor one can detect and identify the bacterial cells directly in the buffer solution with the conductivity between 2.4 and 20⯵S/cm. The minimum detectable concentration of the bacterial cells turned out to be â¼103â¯cells/ml and for a short time (less than 10â¯min). Also the possibility of the detection of the cells in the presence of the extraneous microflora was shown. The results provide the opportunities for the development of a new class of the methods for the analysis of the microbial cells in real-time directly in the buffer solution.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Técnicas Biossensoriais
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Azospirillum lipoferum
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Anticorpos Antibacterianos
Idioma:
En
Revista:
Anal Biochem
Ano de publicação:
2018
Tipo de documento:
Article