Boron-Enhanced Growth of Micron-Scale Carbon-Based Nanowalls: A Route toward High Rates of Electrochemical Biosensing - Publication - Bridge of Knowledge

Search

Boron-Enhanced Growth of Micron-Scale Carbon-Based Nanowalls: A Route toward High Rates of Electrochemical Biosensing

Abstract

In this study, we have demonstrated the fabrication of novel materials called boron-doped carbon nanowalls (B:CNWs), which are characterized by remarkable electrochemical properties such as high standard rate constant (k°), low peak-to-peak separation value (ΔE) for the oxidation and reduction processes of the [Fe(CN)6]3–/4– redox system, and low surface resistivity. The B:CNW samples were deposited by the microwave plasma-assisted chemical vapor deposition (CVD) using a gas mixture of H2/CH4/B2H6 and N2. Growth results in sharp-edged, flat, and long CNWs rich in sp2 as well as sp3 hybridized phases. The achieved high values of k° (1.1 × 10–2 cm s–1) and ΔE (85 mV) are much lower compared to those of the glassy carbon or undoped CNWs. The enhanced electrochemical performance of the B:CNW electrode facilitates the simultaneous detection of DNA purine bases: adenine and guanine. Both separated oxidation peaks for the independent determination of guanine and adenine were observed by means of cyclic voltammetry or differential pulse voltammetry. It is worth noting that the determined sensitivities and the current densities were about 1 order of magnitude higher than those registered by other electrodes.

Citations

  • 7 5

    CrossRef

  • 0

    Web of Science

  • 7 1

    Scopus

Cite as

Full text

download paper
downloaded 6 times
Publication version
Accepted or Published Version
DOI:
Digital Object Identifier (open in new tab) 10.1021/acsami.6b16860
License
Copyright (2017 American Chemical Society)

Keywords

Details

Category:
Articles
Type:
artykuł w czasopiśmie wyróżnionym w JCR
Published in:
ACS Applied Materials & Interfaces no. 9, edition 15, pages 1 - 10,
ISSN: 1944-8244
Language:
English
Publication year:
2017
Bibliographic description:
Siuzdak K., Ficek M., Sobaszek M., Ryl J., Gnyba M., Niedziałkowski P., Malinowska N., Karczewski J., Bogdanowicz R.: Boron-Enhanced Growth of Micron-Scale Carbon-Based Nanowalls: A Route toward High Rates of Electrochemical Biosensing// ACS Applied Materials & Interfaces. -Vol. 9, iss. 15 (2017), s.1-10
DOI:
Digital Object Identifier (open in new tab) 10.1021/acsami.6b16860
Verified by:
Gdańsk University of Technology

seen 183 times

Recommended for you

Meta Tags