Title: Synthesis, characterisation and antimicrobial activity of nano sized hematite (α-Fe2O3) using bio and organic templates
Authors: Malu Somaraj; Nancy John; Nisha J. Tharayil
Addresses: Department of Physics, Sree Narayana College, Kollam, Kerala, India ' Department of Physics, Sree Narayana College, Kollam, Kerala, India ' Department of Physics, Sree Narayana College for Women, Kollam, Kerala, India
Abstract: Hematite nanoparticles were synthesised by chemical co-precipitation method using biomaterials, DNA and STARCH as templates. Structural characterisation was carried out using XRD. The samples were also characterised by TEM. Colour changes are observed in the samples with variation of templates. The hematite nanoparticles were tested for antibacterial activity against some bacterial species. Antimicrobial test showed the inhibition against Escherichia coli, Salmonella typhimurium, Shigella flexneri and Candida albicans with significant antagonistic activity. The results were also compared with hematite nanoparticles prepared using organic templates (EDTA and CTAB) and found some significant changes in many aspects.
Keywords: hematite nanoparticles; chemical co-precipitation; biotemplates; antibacterial activity; synthesis; characterisation; organic templates; nanotechnology; biomaterials; DNA; STARCH; colour changes; antimicrobial testing; Escherichia coli; E coli; Salmonella typhimurium; Shigella flexneri; Candida albicans.
International Journal of Nano and Biomaterials, 2016 Vol.6 No.2, pp.127 - 136
Received: 19 Nov 2015
Accepted: 28 Jun 2016
Published online: 09 Oct 2016 *