KFU. Card publication. Impedimetric aptasensor for ochratoxin A determination based on Au nanoparticles stabilized with hyper-branched polymer

KAZAN
FEDERAL UNIVERSITY

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IMPEDIMETRIC APTASENSOR FOR OCHRATOXIN A DETERMINATION BASED ON AU NANOPARTICLES STABILIZED WITH HYPER-BRANCHED POLYMER

Form of presentation

Articles in international journals and collections

Year of publication

2013

Authors, employees of KFU

Gataulina Alfiya Rinatovna, author

Evtyugin Vladimir Gennadevich, author

Evtyugin Gennadiy Arturovich, author

Kutyreva Marianna Petrovna, author

Porfireva Anna Veniaminovna, author

Stepanova Veronika Borisovna, author

Ulakhovich Nikolay Alekseevich, author

Other authors

T.Khianik

Bibliographic description in the original language

Evtugyn, G. Impedimetric aptasensor for ochratoxin A determination based on Au nanoparticles stabilized with hyper-branched polymer [Text] / G.Evtugyn, A.Porfireva, V.Stepanova, M.Kutyreva, A.Gataulina, N.Ulakhovich, V.Evtugyn, T.Hianik // Sensors.- 2013.- V.12.- N13.- P.16129-16145.

Annotation

SENSORS-BASEL

Keywords

aptasensor; ochratoxin A; DNA aptamers; Au nanoparticles; hyper-branched polymer

The name of the journal

SENSORS-BASEL

URL

http://www.mdpi.com/1424-8220/13/12/16129

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=72970&p_lang=2

Resource files

File name	Size (MB)	Format
sensors_13_16129.pdf	1,40	pdf	show / download

Full metadata record

Field DC	Value	Language
dc.contributor.author	Gataulina Alfiya Rinatovna	ru_RU
dc.contributor.author	Evtyugin Vladimir Gennadevich	ru_RU
dc.contributor.author	Evtyugin Gennadiy Arturovich	ru_RU
dc.contributor.author	Kutyreva Marianna Petrovna	ru_RU
dc.contributor.author	Porfireva Anna Veniaminovna	ru_RU
dc.contributor.author	Stepanova Veronika Borisovna	ru_RU
dc.contributor.author	Ulakhovich Nikolay Alekseevich	ru_RU
dc.date.accessioned	2013-01-01T00:00:00Z	ru_RU
dc.date.available	2013-01-01T00:00:00Z	ru_RU
dc.date.issued	2013	ru_RU
dc.identifier.citation	Evtugyn, G. Impedimetric aptasensor for ochratoxin A determination based on Au nanoparticles stabilized with hyper-branched polymer [Text] / G.Evtugyn, A.Porfireva, V.Stepanova, M.Kutyreva, A.Gataulina, N.Ulakhovich, V.Evtugyn, T.Hianik // Sensors.- 2013.- V.12.- N13.- P.16129-16145.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=72970&p_lang=2	ru_RU
dc.description.abstract	SENSORS-BASEL	ru_RU
dc.description.abstract	SENSORS-BASEL	ru_RU
dc.description.abstract	An impedimetric aptasensor for ochratoxin A (OTA) detection has been developed on the base of a gold electrode covered with a new modifier consisting of electropolymerized Neutral Red and a mixture of Au nanoparticles suspended in the dendrimeric polymer Botlorn H30?. Thiolated aptamer specific to OTA was covalently attached to Au nanoparticles via Au-S bonding. The interaction of the aptamer with OTA induced the conformational switch of the aptamer from linear to guanine quadruplex form followed by consolidation of the surface layer and an increase of the charge transfer resistance. The aptasensor makes it possible to detect from 0.1 to 100 nM of OTA (limit of detection: 0.02 nM) in the presence of at least 50 fold excess of ochratoxin B. The applicability of the aptasensor for real sample assay was confirmed by testing spiked beer samples. The recovery of 2 nM OTA was found to be 70% for light beer and 78% for dark beer.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject		ru_RU
dc.title	Impedimetric aptasensor for ochratoxin A determination based on Au nanoparticles stabilized with hyper-branched polymer	ru_RU
dc.type	Articles in international journals and collections	ru_RU