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Characterisation of the Chemical Composition and Structural Features of Novel Antimicrobial Nanoparticles

Three antimicrobial nanoparticle types (AMNP0, AMNP1, and AMNP2) produced using the Tesima(TM) thermal plasma technology were investigated and their compositions were determined using a combination of analytical methods. Scanning electron micrographs provided the morphology of these particles with o...

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Autores principales: Cheong, Yuen-Ki, Calvo-Castro, Jesus, Ciric, Lena, Edirisinghe, Mohan, Cloutman-Green, Elaine, Illangakoon, Upulitha Eranka, Kang, Qiang, Mahalingam, Suntharavathanan, Matharu, Rupy Kaur, Wilson, Rory M., Ren, Guogang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5535218/
https://www.ncbi.nlm.nih.gov/pubmed/28644384
http://dx.doi.org/10.3390/nano7070152
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author Cheong, Yuen-Ki
Calvo-Castro, Jesus
Ciric, Lena
Edirisinghe, Mohan
Cloutman-Green, Elaine
Illangakoon, Upulitha Eranka
Kang, Qiang
Mahalingam, Suntharavathanan
Matharu, Rupy Kaur
Wilson, Rory M.
Ren, Guogang
author_facet Cheong, Yuen-Ki
Calvo-Castro, Jesus
Ciric, Lena
Edirisinghe, Mohan
Cloutman-Green, Elaine
Illangakoon, Upulitha Eranka
Kang, Qiang
Mahalingam, Suntharavathanan
Matharu, Rupy Kaur
Wilson, Rory M.
Ren, Guogang
author_sort Cheong, Yuen-Ki
collection PubMed
description Three antimicrobial nanoparticle types (AMNP0, AMNP1, and AMNP2) produced using the Tesima(TM) thermal plasma technology were investigated and their compositions were determined using a combination of analytical methods. Scanning electron micrographs provided the morphology of these particles with observed sizes ranging from 10 to 50 nm, whilst FTIR spectra confirmed the absence of polar bonds and organic impurities, and strong Raman active vibrational bands at ca. 1604 and 1311 cm(−1) ascribed to C–C vibrational motions were observed. Carbon signals that resonated at δ(C) 126 ppm in the solid state NMR spectra confirmed that sp(2) hybridised carbons were present in high concentration in two of the nanoparticle types (AMNP1 and AMNP2). X-ray powder diffraction suggested that AMNP0 contains single phase Tungsten carbide (WC) in a high state of purity and multiple phases of WC/WC(1-x) were identified in both AMNP1 and AMNP2. Finally, X-ray photoelectron spectral (XPS) analyses revealed and quantified the elemental ratios in these composite formulations.
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spelling pubmed-55352182017-08-04 Characterisation of the Chemical Composition and Structural Features of Novel Antimicrobial Nanoparticles Cheong, Yuen-Ki Calvo-Castro, Jesus Ciric, Lena Edirisinghe, Mohan Cloutman-Green, Elaine Illangakoon, Upulitha Eranka Kang, Qiang Mahalingam, Suntharavathanan Matharu, Rupy Kaur Wilson, Rory M. Ren, Guogang Nanomaterials (Basel) Article Three antimicrobial nanoparticle types (AMNP0, AMNP1, and AMNP2) produced using the Tesima(TM) thermal plasma technology were investigated and their compositions were determined using a combination of analytical methods. Scanning electron micrographs provided the morphology of these particles with observed sizes ranging from 10 to 50 nm, whilst FTIR spectra confirmed the absence of polar bonds and organic impurities, and strong Raman active vibrational bands at ca. 1604 and 1311 cm(−1) ascribed to C–C vibrational motions were observed. Carbon signals that resonated at δ(C) 126 ppm in the solid state NMR spectra confirmed that sp(2) hybridised carbons were present in high concentration in two of the nanoparticle types (AMNP1 and AMNP2). X-ray powder diffraction suggested that AMNP0 contains single phase Tungsten carbide (WC) in a high state of purity and multiple phases of WC/WC(1-x) were identified in both AMNP1 and AMNP2. Finally, X-ray photoelectron spectral (XPS) analyses revealed and quantified the elemental ratios in these composite formulations. MDPI 2017-06-23 /pmc/articles/PMC5535218/ /pubmed/28644384 http://dx.doi.org/10.3390/nano7070152 Text en © 2017 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
Cheong, Yuen-Ki
Calvo-Castro, Jesus
Ciric, Lena
Edirisinghe, Mohan
Cloutman-Green, Elaine
Illangakoon, Upulitha Eranka
Kang, Qiang
Mahalingam, Suntharavathanan
Matharu, Rupy Kaur
Wilson, Rory M.
Ren, Guogang
Characterisation of the Chemical Composition and Structural Features of Novel Antimicrobial Nanoparticles
title Characterisation of the Chemical Composition and Structural Features of Novel Antimicrobial Nanoparticles
title_full Characterisation of the Chemical Composition and Structural Features of Novel Antimicrobial Nanoparticles
title_fullStr Characterisation of the Chemical Composition and Structural Features of Novel Antimicrobial Nanoparticles
title_full_unstemmed Characterisation of the Chemical Composition and Structural Features of Novel Antimicrobial Nanoparticles
title_short Characterisation of the Chemical Composition and Structural Features of Novel Antimicrobial Nanoparticles
title_sort characterisation of the chemical composition and structural features of novel antimicrobial nanoparticles
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5535218/
https://www.ncbi.nlm.nih.gov/pubmed/28644384
http://dx.doi.org/10.3390/nano7070152
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