Cargando…
The Influence of the Parameters of a Gold Nanoparticle Deposition Method on Titanium Dioxide Nanotubes, Their Electrochemical Response, and Protein Adsorption
The goal of this research was to find the best conditions to prepare titanium dioxide nanotubes (TNTs) modified with gold nanoparticles (AuNPs). This paper, for the first time, reports on the influence of the parameters of cyclic voltammetry process (CV) -based AuNP deposition, i.e., the number of c...
Autores principales: | , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6956335/ https://www.ncbi.nlm.nih.gov/pubmed/31756994 http://dx.doi.org/10.3390/bios9040138 |
_version_ | 1783487136128827392 |
---|---|
author | Paradowska, Ewa Arkusz, Katarzyna Pijanowska, Dorota G. |
author_facet | Paradowska, Ewa Arkusz, Katarzyna Pijanowska, Dorota G. |
author_sort | Paradowska, Ewa |
collection | PubMed |
description | The goal of this research was to find the best conditions to prepare titanium dioxide nanotubes (TNTs) modified with gold nanoparticles (AuNPs). This paper, for the first time, reports on the influence of the parameters of cyclic voltammetry process (CV) -based AuNP deposition, i.e., the number of cycles and the concentration of gold salt solution, on corrosion resistance and the capacitance of TNTs. Another innovation was to fabricate AuNPs with well-formed spherical geometry and uniform distribution on TNTs. The AuNPs/TNTs were characterized using scanning electron microscopy, X-ray photoelectron spectroscopy, electrochemical impedance spectroscopy, and open-circuit potential measurement. From the obtained results, the correlation between the deposition process parameters, the AuNP diameters, and the electrical conductivity of the TNTs was found in a range from 14.3 ± 1.8 to 182.3 ± 51.7 nm. The size and amount of the AuNPs could be controlled by the number of deposition cycles and the concentration of the gold salt solution. The modification of TNTs using AuNPs facilitated electron transfer, increased the corrosion resistance, and caused better adsorption properties for bovine serum albumin. |
format | Online Article Text |
id | pubmed-6956335 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-69563352020-01-23 The Influence of the Parameters of a Gold Nanoparticle Deposition Method on Titanium Dioxide Nanotubes, Their Electrochemical Response, and Protein Adsorption Paradowska, Ewa Arkusz, Katarzyna Pijanowska, Dorota G. Biosensors (Basel) Article The goal of this research was to find the best conditions to prepare titanium dioxide nanotubes (TNTs) modified with gold nanoparticles (AuNPs). This paper, for the first time, reports on the influence of the parameters of cyclic voltammetry process (CV) -based AuNP deposition, i.e., the number of cycles and the concentration of gold salt solution, on corrosion resistance and the capacitance of TNTs. Another innovation was to fabricate AuNPs with well-formed spherical geometry and uniform distribution on TNTs. The AuNPs/TNTs were characterized using scanning electron microscopy, X-ray photoelectron spectroscopy, electrochemical impedance spectroscopy, and open-circuit potential measurement. From the obtained results, the correlation between the deposition process parameters, the AuNP diameters, and the electrical conductivity of the TNTs was found in a range from 14.3 ± 1.8 to 182.3 ± 51.7 nm. The size and amount of the AuNPs could be controlled by the number of deposition cycles and the concentration of the gold salt solution. The modification of TNTs using AuNPs facilitated electron transfer, increased the corrosion resistance, and caused better adsorption properties for bovine serum albumin. MDPI 2019-11-20 /pmc/articles/PMC6956335/ /pubmed/31756994 http://dx.doi.org/10.3390/bios9040138 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Paradowska, Ewa Arkusz, Katarzyna Pijanowska, Dorota G. The Influence of the Parameters of a Gold Nanoparticle Deposition Method on Titanium Dioxide Nanotubes, Their Electrochemical Response, and Protein Adsorption |
title | The Influence of the Parameters of a Gold Nanoparticle Deposition Method on Titanium Dioxide Nanotubes, Their Electrochemical Response, and Protein Adsorption |
title_full | The Influence of the Parameters of a Gold Nanoparticle Deposition Method on Titanium Dioxide Nanotubes, Their Electrochemical Response, and Protein Adsorption |
title_fullStr | The Influence of the Parameters of a Gold Nanoparticle Deposition Method on Titanium Dioxide Nanotubes, Their Electrochemical Response, and Protein Adsorption |
title_full_unstemmed | The Influence of the Parameters of a Gold Nanoparticle Deposition Method on Titanium Dioxide Nanotubes, Their Electrochemical Response, and Protein Adsorption |
title_short | The Influence of the Parameters of a Gold Nanoparticle Deposition Method on Titanium Dioxide Nanotubes, Their Electrochemical Response, and Protein Adsorption |
title_sort | influence of the parameters of a gold nanoparticle deposition method on titanium dioxide nanotubes, their electrochemical response, and protein adsorption |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6956335/ https://www.ncbi.nlm.nih.gov/pubmed/31756994 http://dx.doi.org/10.3390/bios9040138 |
work_keys_str_mv | AT paradowskaewa theinfluenceoftheparametersofagoldnanoparticledepositionmethodontitaniumdioxidenanotubestheirelectrochemicalresponseandproteinadsorption AT arkuszkatarzyna theinfluenceoftheparametersofagoldnanoparticledepositionmethodontitaniumdioxidenanotubestheirelectrochemicalresponseandproteinadsorption AT pijanowskadorotag theinfluenceoftheparametersofagoldnanoparticledepositionmethodontitaniumdioxidenanotubestheirelectrochemicalresponseandproteinadsorption AT paradowskaewa influenceoftheparametersofagoldnanoparticledepositionmethodontitaniumdioxidenanotubestheirelectrochemicalresponseandproteinadsorption AT arkuszkatarzyna influenceoftheparametersofagoldnanoparticledepositionmethodontitaniumdioxidenanotubestheirelectrochemicalresponseandproteinadsorption AT pijanowskadorotag influenceoftheparametersofagoldnanoparticledepositionmethodontitaniumdioxidenanotubestheirelectrochemicalresponseandproteinadsorption |