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

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	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.
刊名	MDPI AG
	2017-07-01
卷号	7 期号:7 页码:-
关键词	Antimicrobial Antiviral Antibacterial Nanoparticles Tungsten Carbide Raman Xrd Ss-nmr Xps
ISSN号	2079-4991
英文摘要	Three antimicrobial nanoparticle types (AMNP0, AMNP1, and AMNP2) produced using the TesimaTM 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 delta(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/WC1-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.; Three antimicrobial nanoparticle types (AMNP0, AMNP1, and AMNP2) produced using the TesimaTM 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 delta(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/WC1-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.
学科主题	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
语种	英语
资助机构	EPSRC [EP/N034228/1]
公开日期	2018-01-10
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79182]
专题	金属研究所_中国科学院金属研究所
通讯作者	Ren, GG (reprint author), Univ Hertfordshire, Sch Engn & Technol, Hatfield AL10 9AB, Herts, England.
推荐引用方式 GB/T 7714	Cheong, Yuen-Ki,Calvo-Castro, Jesus,Ciric, Lena,et al. Characterisation of the Chemical Composition and Structural Features of Novel Antimicrobial Nanoparticles[J]. MDPI AG,2017,7(7):-.
APA	Cheong, Yuen-Ki.,Calvo-Castro, Jesus.,Ciric, Lena.,Edirisinghe, Mohan.,Cloutman-Green, Elaine.,...&Ren, GG .(2017).Characterisation of the Chemical Composition and Structural Features of Novel Antimicrobial Nanoparticles.MDPI AG,7(7),-.
MLA	Cheong, Yuen-Ki,et al."Characterisation of the Chemical Composition and Structural Features of Novel Antimicrobial Nanoparticles".MDPI AG 7.7(2017):-.