Characterisation of chemical composition and structural features of novel antimicrobial nanoparticles

Guogang Ren, Jesus Calvo-Castro, Lena Ciric, Mohan Edirisinghe, Elaine Cloutman-Green, Upulitha Eranka Illangakoon, Qiang Kang, Suntharavathanan Mahalingam, Rupy Kaur Matharu, Rory M Wilson, Yuen Ki Cheong

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)
124 Downloads (Pure)


Three antimicrobial nanoparticle types (AMNP0, AMNP1 and AMNP2) produced using the TesimaTM thermal plasma technology were investigated and their compositions determined using a combination of analytical methods. Scanning electron micrograph provided the morphology of these particles with observed sizes ranging from 10 – 50 nm. Whilst FTIR spectra confirmed the absence of polar bonds and organic impurities, strong Raman active vibrational bands at ca. 1604 and 1311 cm-1 ascribed to C-C vibrational motions were observed. Carbon signals resonated at δC126 ppm in solid state NMR spectra confirmed sp2 hybridised carbons were present in high concentration in two of the nanoparticle types (AMNP1 and AMNP2). X-ray powder diffraction suggested AMNP0 contains single phase WC in a high state of purity and multiple phases of WC/WC1-x were identified in both AMNP1 and AMNP2. Finally, XPS surface analyses revealed and quantified the elemental ratios in these composite formulations.
Original languageEnglish
Article number152
Number of pages16
Issue number7
Publication statusPublished - 23 Jun 2017


  • antimicrobial
  • antiviral
  • antibacterial
  • nanopartciles
  • tungsten
  • carbide
  • Raman
  • XRD
  • SS-NMR
  • XPS


Dive into the research topics of 'Characterisation of chemical composition and structural features of novel antimicrobial nanoparticles'. Together they form a unique fingerprint.

Cite this