Dielectric properties of DNA oligonucleotides on the surface of silicon nanostructures
- Authors: Bagraev N.T.1,2, Chernev A.L.3, Klyachkin L.E.1,2, Malyarenko A.M.2, Emel’yanov A.K.3, Dubina M.V.3
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Affiliations:
- St. Petersburg Polytechnic University
- Ioffe Physical–Technical Institute
- St. Petersburg Academic University—Nanotechnology Research and Education Center
- Issue: Vol 50, No 10 (2016)
- Pages: 1333-1337
- Section: Semiconductor Structures, Low-Dimensional Systems, and Quantum Phenomena
- URL: https://journals.rcsi.science/1063-7826/article/view/198053
- DOI: https://doi.org/10.1134/S1063782616100079
- ID: 198053
Cite item
Abstract
Planar silicon nanostructures that are formed as a very narrow silicon quantum well confined by δ barriers heavily doped with boron are used to study the dielectric properties of DNA oligonucleotides deposited onto the surface of the nanostructures. The capacitance characteristics of the silicon nanostructures with oligonucleotides deposited onto their surface are determined by recording the local tunneling current–voltage characteristics by means of scanning tunneling microscopy. The results show the possibility of identifying the local dielectric properties of DNA oligonucleotide segments consisting of repeating G–C pairs. These properties apparently give grounds to correlate the segments with polymer molecules exhibiting the properties of multiferroics.
About the authors
N. T. Bagraev
St. Petersburg Polytechnic University; Ioffe Physical–Technical Institute
Author for correspondence.
Email: bagraev@mail.ioffe.ru
Russian Federation, St. Petersburg, 195251; St. Petersburg, 194021
A. L. Chernev
St. Petersburg Academic University—Nanotechnology Research and Education Center
Email: bagraev@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021
L. E. Klyachkin
St. Petersburg Polytechnic University; Ioffe Physical–Technical Institute
Email: bagraev@mail.ioffe.ru
Russian Federation, St. Petersburg, 195251; St. Petersburg, 194021
A. M. Malyarenko
Ioffe Physical–Technical Institute
Email: bagraev@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021
A. K. Emel’yanov
St. Petersburg Academic University—Nanotechnology Research and Education Center
Email: bagraev@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021
M. V. Dubina
St. Petersburg Academic University—Nanotechnology Research and Education Center
Email: bagraev@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021