SOI-nanowire biosensor for the detection of D-NFAT 1 protein

Biomedit︠s︡inskai︠a︡ khimii︠a︡
K A MalsagovaD A Nasimov

Abstract

The nanowire (NW) detection is one of fast-acting and high-sensitive methods allowing to reveal potentially relevant protein molecules. A NW biosensor based on the silicon-on-insulator (SOI)-structures was used for biospecific label-free detection of NFAT 1 (D-NFAT 1) oncomarker in real time. For this purpose, SOI-nanowires (NWs) were modified with aptamers against NFAT 1 used as molecular probes. It was shown that using this biosensor it is possible to reach the sensitivity of ~10(-15) M. This sensitivity was comparable with that of the NW biosensor with immobilized antibodies used as macromolecular probes. The results demonstrate promising approaches used to form the sensor elements for high-sensitive disease diagnostics.

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Citations

Jul 29, 2015·Biomedit︠s︡inskai︠a︡ khimii︠a︡·N S BukharinaA I Archakov

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