Antibacterial Activity of Silver Deposited Vein Graphite against Waterborne Pathogenic Escherichia coil

Simple item page
dc.contributor.authorKumar, K.K.A.D.
dc.contributor.authorAmaraweera, T.H.N.G.
dc.contributor.authorPremetilake, M.M.S.N.
dc.contributor.authorWijayasinghe, H.W.M.A.C.
dc.date.accessioned2019-08-15T10:22:06Z
dc.date.available2019-08-15T10:22:06Z
dc.date.issued2018
dc.description.abstractThe microbial contamination of drinking water is a major health problem in the world which requires an effective treatment. Silver ion (Ag+2) is used as nonspecific antibacterial factor and it acts against a very broad spectrum of bacterial species. In this study, antibacterial efficiency of Ag deposited vein graphite were studied using Escherichia coli strain. Ag was deposited on the graphite surface by reduction of Ag+2 in silver nitrate solution using reducing agent. Scanning electron microphotographs of the Ag deposited graphite reveal that the deposited silver particles are highly agglomerated or spongy voids. Although the size of silver particle agglomerates are relatively coarse, the average size of individual silver nanoparticle is around 75 nm. Antibacterial efficacy of the synthesized sample was investigated using waterborne pathogenic E. coli strain. The antibacterial test was done using prepared composite samples and samples of E. coli, using shake flask method. A commercial antibiotic (Ofloxin-200 mg) was used as the positive control. The samples were drawn periodically (1, 1.5, 2, 2.5 and 3 hours) from the flask and tested against E. coli by plate count method using standard procedures. There was a significant E. coli removal efficiency by the synthesized Ag Graphite composite compared to purified graphite and positive control (One-way ANOVA, p-value=0.00). Therefore, this study suggests that Ag- vein graphite composite could be used as an effective material in water purification, especially in removing of E. coli.en_US
dc.identifier.isbn9789550481194
dc.identifier.urihttp://erepo.lib.uwu.ac.lk/bitstream/handle/123456789/1705/388-2018-Antibacterial%20Activity%20of%20Silver%20Deposited%20Vein%20Graphite%20against%20.pdf?sequence=1&isAllowed=y
dc.language.isoenen_US
dc.publisherUva Wellassa University of Sri Lankaen_US
dc.subjectMaterial Sciencesen_US
dc.subjectMineral Sciencesen_US
dc.titleAntibacterial Activity of Silver Deposited Vein Graphite against Waterborne Pathogenic Escherichia coilen_US
dc.title.alternativeInternational Research Conference 2018en_US
dc.typeOtheren_US
Files
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
388-2018-Antibacterial Activity of Silver Deposited Vein Graphite against .pdf
Size:
115.04 KB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
International Research Symposium of UWU-2018