Influence of the type of substrate on the properties of carbon nanotubes layer studied by Raman spectroscopy

Anna Kołodziej; Aleksandra Wesełucha-Birczyńska; Elżbieta Długoń; Maciej Sitarz; Marta Błażewicz

doi:10.1016/j.saa.2022.122306

Influence of the type of substrate on the properties of carbon nanotubes layer studied by Raman spectroscopy

Spectrochim Acta A Mol Biomol Spectrosc. 2023 Apr 5:290:122306. doi: 10.1016/j.saa.2022.122306. Epub 2022 Dec 31.

Authors

Anna Kołodziej¹, Aleksandra Wesełucha-Birczyńska², Elżbieta Długoń³, Maciej Sitarz³, Marta Błażewicz³

Affiliations

¹ Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland.
² Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland. Electronic address: birczyns@chemia.uj.edu.pl.
³ Faculty of Materials Science and Ceramics, AGH - University of Science and Technology, Mickiewicza 30, 30-059 Kraków, Poland.

PMID: 36603281
DOI: 10.1016/j.saa.2022.122306

Abstract

The development of nanomaterials technology allows to design a novel medical strategies, and could also be useful in the field of regenerative medicine. The paper presents a study on the functionalized multi-walled carbon nanotubes (MWCNTs-f) layers deposited by electrophoretic method (EPD) on the surfaces of two types of substrates: titanium (Ti) and stainless steel. SEM and EDS analyses confirm that incubation in a simulated body fluid (SBF) caused a formation of hydroxyapatite on the surface of the Ti/MWCNTs-f. Raman micro-spectroscopy was a method of choice to study presented materials. The MWCNTs-f layer on the surface of the titanium plate shows better layer order than the corresponding layer deposited on the stainless steel. The structure and ordering of the nanocarbon layer play a key role in the biological activity of the materials. This was confirmed by the incubation of the plates with deposited layer of carbon nanotubes in SBF. A titanium substrate with a MWCNTs-f layer supports the deposition of some components from the environment, while a stainless steel substrate promotes the formation of a carbon film that inhibits the deposition of certain components from the environment. A two-trace two-dimensional (2T2D) analysis confirmed a different effect of SBF on the MWCNTs-f layer depending on the type of substrate. The MWCNTs-f layer on titanium substrate seems to represent an interesting proposition for novel bioactive strategies.

Keywords: Electrophoretic deposition (EPD); Multi-walled carbon nanotubes (MWCNTs); Multi-wavelength Raman Micro-spectroscopy; Simulated body fluid (SBF); Two-trace two-dimensional (2T2D) correlation.