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题名: Characterisation of the Chemical Composition and Structural Features of Novel Antimicrobial Nanoparticles
作者: 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
通讯作者: Ren, GG (reprint author), Univ Hertfordshire, Sch Engn & Technol, Hatfield AL10 9AB, Herts, England.
发表日期: 2017-7-1
学科主题: Nanoscience & Nanotechnology;  Materials Science, Multidisciplinary
关键词: antimicrobial;  antiviral;  antibacterial;  nanoparticles;  tungsten;  carbide;  Raman;  XRD;  SS-NMR;  XPS
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.
资助者: EPSRC [EP/N034228/1]
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.
部门归属: [Cheong, Yuen-Ki;  Ren, Guogang] Univ Hertfordshire, Sch Engn & Technol, Hatfield AL10 9AB, Herts, England;  [Calvo-Castro, Jesus] Univ Hertfordshire, Sch Life & Med Sci, Hatfield AL10 9AB, Herts, England;  [Ciric, Lena] UCL, Dept Civil Environm & Geomat Engn, London WC1E 7JE, England;  [Edirisinghe, Mohan;  Illangakoon, Upulitha Eranka;  Mahalingam, Suntharavathanan;  Matharu, Rupy Kaur] UCL, Dept Mech Engn, London WC1E 7JE, England;  [Cloutman-Green, Elaine] Great Ormond St Hosp NHS Fdn Trust, Dept Microbiol Virol & Infect Prevent Control, London WCIN 3JH, England;  [Kang, Qiang] Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China;  [Wilson, Rory M.] Queen Mary Univ London, Mat Res Inst, London E1 4NS, England
刊名: MDPI AG
收录类别: SCI
内容类型: 期刊论文
URI标识: http://ir.imr.ac.cn/handle/321006/79182
ISSN号: 2079-4991
语种: 英语
Appears in Collections:中国科学院金属研究所_期刊论文

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Recommended Citation:
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):-.

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