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Development of antibacterial polymer composite films from cassava starch and silver vein graphite composite

Authors:

M. A. S. R. Senevirathna ,

Uva Wellassa University, Passara Road, Badulla, LK
About M. A. S. R.
Department of Science and Technology, Faculty of Applied Sciences
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V. M. R. Swarnamali,

Uva Wellassa University, Badulla, LK
About V. M. R.
Department of Applied Earth Sciences, Faculty of Applied Sciences
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M. N. A. Naseef,

Uva Wellassa University, Passara Road, Badulla, LK
About M. N. A.
Department of Science and Technology, Faculty of Applied Sciences
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T. H. N. G. Amaraweera,

Uva Wellassa University, Badulla, LK
About T. H. N. G.
Department of Applied Earth Sciences, Faculty of Applied Sciences
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M. M. S. N. Premathilake

Uva Wellassa University, Passara Road, Badulla, LK
About M. M. S. N.
Department of Science and Technology, Faculty of Applied Sciences
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Abstract

Nowadays starch based natural polymers have been received tremendous attention owing to their non-toxicity, biodegradability, and biocompatibility. However, the applications of starch-based films are restricted due to water sensitivity and bacterial contaminations. To overcome these issues, a polymer composite film was produced by solution casting using cassava starch and silver vein graphite composite. The incorporation of silver vein graphite composite into cassava starch showed a reduction in water absorption capacity of the film. Polymer composite film from cassava starch and SVG (SVG/C.St film) showed excellent antibacterial activity against Staphylococcus aureus (diameter of the inhibition zone, ±22 mm; positive control, ±24 mm) and moderate activity against Escherichia coli (diameter of the inhibition zone, ±8 mm; positive control, ±23 mm). Inhibition zones were not observed for any of those bacteria species when C.St films were used. Therefore, SVG/C.St film could be a promising material for many antibacterial applications.

How to Cite: Senevirathna, M. A. S. R., Swarnamali, V. M. R., Naseef, M. N. A., Amaraweera, T. H. N. G., & Premathilake, M. M. S. N. (2022). Development of antibacterial polymer composite films from cassava starch and silver vein graphite composite. Ceylon Journal of Science, 51(3), 277–284. DOI: http://doi.org/10.4038/cjs.v51i3.8035
Published on 21 Sep 2022.
Peer Reviewed

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