Antimicrobial activities of silver nanoparticles bio-synthesized from diatom Amphora sp.
A biological method was employed to synthesize silver nanoparticles through marine diatom Amphora sp. Antimicrobial efficacy test against different pathogenic bacteria were performed through synthesized silver nanoparticles. The physio-chemical properties of synthesized silver nanoparticles were stu...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
RMP Publications
2017
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/66686/ http://irep.iium.edu.my/66686/ http://irep.iium.edu.my/66686/ http://irep.iium.edu.my/66686/1/Tevan%20PhD%20Publication%202.pdf |
| Summary: | A biological method was employed to synthesize silver nanoparticles through marine diatom Amphora sp. Antimicrobial efficacy test against different pathogenic bacteria were performed through synthesized silver nanoparticles. The physio-chemical properties of synthesized silver nanoparticles were studied using analytical techniques such as UV-Vis spectrophotometer, Field Emission Scanning Electron Microscopy (FESEM), Energy- Dispersive X-ray Spectroscopy (EDX) and Fourier Transform Infrared Spectroscopy (FTIR) and X-ray Powder Diffraction (XRD). UV-Vis color intensity study and higher magnification of the Field Emission Scanning Electron Microscopy image showed the synthesized silver nanoparticles were rod shaped with a size range from 42 nm to 46 nm. The synthesized nanoparticles exhibited antibacterial activities in varying magnitudes. About 10 mg/ml of silver nanoparticles were able to inhibit the growth of gram-negative bacteria while gram-positive bacteria were resistant towards similar concentrations of silver nanoparticles. |
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