Please use this identifier to cite or link to this item: http://archive.cmb.ac.lk:8080/xmlui/handle/70130/6410
Full metadata record
DC FieldValueLanguage
dc.contributor.authorFernando, M.S.-
dc.contributor.authorWimalasiri, A.K.D.V.K.-
dc.contributor.authorGayashan, M.K.-
dc.contributor.authorde Silva, Rohini.M.-
dc.contributor.authorde Silva, K.M. Nalin-
dc.contributor.authorDissanayake, D.P.-
dc.date.accessioned2022-01-28T07:36:15Z-
dc.date.available2022-01-28T07:36:15Z-
dc.date.issued2020-
dc.identifier.citationFernando M.S.;Wimalasiri A.K.D.V.K.; Gayashan M.K.; de Silva Rohini.M.; de Silva K.M. Nalin; Dissanayake D.P.(2020),Multifunctional HAP nanocomposites for antimicrobial activity, Proceedings of the Annual Research Symposium,2020,University of Colombo,22en_US
dc.identifier.urihttp://archive.cmb.ac.lk:8080/xmlui/handle/70130/6410-
dc.description.abstractContamination of water bodies by chemical and biological pollutants has resulted in shortage of clean and safe drinking water all over the world. Hydroxyapatite based nanocomposites have been identified as promising materials which can be used in water purification as adsorbents due to their versatile adsorption properties. In addition, these materials have a great potential to act as antimicrobial agents. In this work different HAP based nanocomposites which were identified as promising adsorbents in our previous and ongoing work were considered to evaluate and compare their antimicrobial properties. Nanocomposites of HAP were prepared with four biopolymers, (chitosan (CTS), carboxymethylcellulose (CMC), alginate (ALG) and gelatin (GEL)), montmorillonite (MMT) as a nano clay and titanium dioxide (TiO2) as a nontoxic metal oxide and they were named as HAP-CTS, HAP-CMC, HAP-ALG, HAP-GEL, HAP-MMT and HAP-TiO2 respectively. All the synthesized materials were characterized using Fourier-Transformed Infrared Spectroscopy (FTIR), Scanning Electron microscopy (SEM) and X-ray Diffractometry (XRD). Antimicrobial activity of these composites were compared using E.coli as a gram negative bacteria and S. aureus as a gram positive bacteria by measuring the optical density (OD) at 600 nm in the presence of the bacterial samples with 20 mg of each composite in 50 ml of fresh LB broth, for 10 h in 30 minutes time intervals. According to results, antimicrobial properties were amply exhibited by all nanocomposites compared to the control. Of all composites, HAP-TiO2 showed the highest activity and its activity for E. coli and S. aureus were 58.9% and 71.1% respectively. Therefore, HAP-TiO2 was identified as the best HAP based nanocomposites to remove both E. coli and S. aureus from water.en_US
dc.language.isoenen_US
dc.publisherUniversity of Colomboen_US
dc.subjectAntimicrobial propertiesen_US
dc.subjectbiopolymersen_US
dc.subjecthydroxyapatiteen_US
dc.subjectnanocompositesen_US
dc.subjecttitanium dioxideen_US
dc.titleMultifunctional HAP nanocomposites for antimicrobial activityen_US
dc.typeArticleen_US
Appears in Collections:Department of Chemistry

Files in This Item:
File Description SizeFormat 
Multifunctional HAP nanocomposites for antimicrobial activity.pdf244.51 kBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.