Nanoribbon biosensor in the detection of miRNAs associated with colorectal cancer

Yuri D. Ivanov*, Kristina V. Goldaeva, Kristina A. Malsagova, Tatyana O. Pleshakova, Rafael A. Galiullin, Vladimir P. Popov, Nikolay E. Kushlinskii, Alexander A. Alferov, Dmitry V. Enikeev, Natalia V. Potoldykova, Alexander I. Archakov

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

A nanoribbon biosensor (NRBS) was developed to register synthetic DNAs that simulate and are analogous to miRNA-17-3p associated with colorectal cancer. Using this nanoribbon biosensor, the ability to detect miRNA-17-3p in the blood plasma of a patient diagnosed with colorectal cancer has been demonstrated. The sensing element of the NRBS was a nanochip based on a silicon-on-insulator (SOI) nanostructure. The nanochip included an array of 10 nanoribbons and was designed with the implementation of top-down technology. For biospecific recognition of miRNA-17-3p, the nanochip was modified with DNA probes specific for miRNA-17-3p. The performance of the nanochip was preliminarily tested on model DNA oligonucleotides, which are synthetic analogues of miRNA-17-3p, and a detection limit of ~10−17 M was achieved. The results of this work can be used in the development of serological diagnostic systems for early detection of colorectal cancer.

Original languageEnglish
Article number1581
JournalMicromachines
Volume12
Issue number12
DOIs
StatePublished - Dec 2021
Externally publishedYes

Funding

FundersFunder number
Ministry of Education and Science of the Russian Federation075-15-2020-913

    Keywords

    • Cancer
    • Colorectal cancer
    • MiRNA
    • Nanoribbon
    • Nanoribbon biosensor
    • Silicon-on-insulator

    Fingerprint

    Dive into the research topics of 'Nanoribbon biosensor in the detection of miRNAs associated with colorectal cancer'. Together they form a unique fingerprint.

    Cite this