Antimicrobial activity of copper kaolinite and surfactant modified copper kaolinite against gram positive and gram negative bacteria
The aim of this research was to determine the antimicrobial activity of kaolinite modified with antimicrobial compounds against Gram positive and Gram negative bacteria. Copper kaolinite (Cu-kaolinite) was prepared by loading raw kaolinite with copper nitrate trihydrate (CuNO3) while surfactant modi...
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Online Access: | http://eprints.utm.my/id/eprint/71305/1/NorSyafawaniSarah2016_Antimicrobialactivityofcopperkaolinite.pdf http://eprints.utm.my/id/eprint/71305/ https://www.scopus.com/inward/record.uri?eid=2-s2.0-84962545530&doi=10.11113%2fjt.v78.7827&partnerID=40&md5=90e9422899bb6ad768511a38a1a77833 |
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my.utm.713052017-11-16T09:43:05Z http://eprints.utm.my/id/eprint/71305/ Antimicrobial activity of copper kaolinite and surfactant modified copper kaolinite against gram positive and gram negative bacteria Md. Saad, Nor Syafawani Sarah Nik Malek, Nik Ahmad Nizam Chong, Chun Shiong TA Engineering (General). Civil engineering (General) The aim of this research was to determine the antimicrobial activity of kaolinite modified with antimicrobial compounds against Gram positive and Gram negative bacteria. Copper kaolinite (Cu-kaolinite) was prepared by loading raw kaolinite with copper nitrate trihydrate (CuNO3) while surfactant modified Cu-kaolinite (SM-Cu-kaolinite) was prepared by adding cationic surfactants hexadecyltrimethyl ammonium (HDTMA) on Cu-Kaolinite. Samples was characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) analyzer. The antimicrobial activity of the samples was tested against Gram negative bacteria (Escherichia coli ATCC 11229 and Pseudomonas aeruginosa ATCC 15442), and Gram positive bacteria (Staphylococcus aureus ATCC 6538 and Enterococcus faecalis ATCC 29212) through disc diffusion technique (DDT) and minimum inhibition concentration (MIC). The results showed that the antimicrobial activity of Cu-kaolinite increased after modified with HDTMA due to the synergistic effects of Cu ions and HDTMA molecules on the kaolinite. The antimicrobial activity for surfactant modified Cu-kaolinite was greater for Gram positive bacteria compared to Gram negative bacteria. In conclusion, the attachment of HDTMA on Cu-kaolinite contributed to the enhanced antimicrobial activity against wide spectrum of bacteria (Gram positive and Gram negative bacteria). Penerbit UTM Press 2016 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/71305/1/NorSyafawaniSarah2016_Antimicrobialactivityofcopperkaolinite.pdf Md. Saad, Nor Syafawani Sarah and Nik Malek, Nik Ahmad Nizam and Chong, Chun Shiong (2016) Antimicrobial activity of copper kaolinite and surfactant modified copper kaolinite against gram positive and gram negative bacteria. Jurnal Teknologi, 78 (3-2). pp. 127-132. ISSN 0127-9696 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84962545530&doi=10.11113%2fjt.v78.7827&partnerID=40&md5=90e9422899bb6ad768511a38a1a77833 |
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TA Engineering (General). Civil engineering (General) Md. Saad, Nor Syafawani Sarah Nik Malek, Nik Ahmad Nizam Chong, Chun Shiong Antimicrobial activity of copper kaolinite and surfactant modified copper kaolinite against gram positive and gram negative bacteria |
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The aim of this research was to determine the antimicrobial activity of kaolinite modified with antimicrobial compounds against Gram positive and Gram negative bacteria. Copper kaolinite (Cu-kaolinite) was prepared by loading raw kaolinite with copper nitrate trihydrate (CuNO3) while surfactant modified Cu-kaolinite (SM-Cu-kaolinite) was prepared by adding cationic surfactants hexadecyltrimethyl ammonium (HDTMA) on Cu-Kaolinite. Samples was characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) analyzer. The antimicrobial activity of the samples was tested against Gram negative bacteria (Escherichia coli ATCC 11229 and Pseudomonas aeruginosa ATCC 15442), and Gram positive bacteria (Staphylococcus aureus ATCC 6538 and Enterococcus faecalis ATCC 29212) through disc diffusion technique (DDT) and minimum inhibition concentration (MIC). The results showed that the antimicrobial activity of Cu-kaolinite increased after modified with HDTMA due to the synergistic effects of Cu ions and HDTMA molecules on the kaolinite. The antimicrobial activity for surfactant modified Cu-kaolinite was greater for Gram positive bacteria compared to Gram negative bacteria. In conclusion, the attachment of HDTMA on Cu-kaolinite contributed to the enhanced antimicrobial activity against wide spectrum of bacteria (Gram positive and Gram negative bacteria). |
format |
Article |
author |
Md. Saad, Nor Syafawani Sarah Nik Malek, Nik Ahmad Nizam Chong, Chun Shiong |
author_facet |
Md. Saad, Nor Syafawani Sarah Nik Malek, Nik Ahmad Nizam Chong, Chun Shiong |
author_sort |
Md. Saad, Nor Syafawani Sarah |
title |
Antimicrobial activity of copper kaolinite and surfactant modified copper kaolinite against gram positive and gram negative bacteria |
title_short |
Antimicrobial activity of copper kaolinite and surfactant modified copper kaolinite against gram positive and gram negative bacteria |
title_full |
Antimicrobial activity of copper kaolinite and surfactant modified copper kaolinite against gram positive and gram negative bacteria |
title_fullStr |
Antimicrobial activity of copper kaolinite and surfactant modified copper kaolinite against gram positive and gram negative bacteria |
title_full_unstemmed |
Antimicrobial activity of copper kaolinite and surfactant modified copper kaolinite against gram positive and gram negative bacteria |
title_sort |
antimicrobial activity of copper kaolinite and surfactant modified copper kaolinite against gram positive and gram negative bacteria |
publisher |
Penerbit UTM Press |
publishDate |
2016 |
url |
http://eprints.utm.my/id/eprint/71305/1/NorSyafawaniSarah2016_Antimicrobialactivityofcopperkaolinite.pdf http://eprints.utm.my/id/eprint/71305/ https://www.scopus.com/inward/record.uri?eid=2-s2.0-84962545530&doi=10.11113%2fjt.v78.7827&partnerID=40&md5=90e9422899bb6ad768511a38a1a77833 |
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