Antibacterial activity of CTAB-modified zeolite NaY with different CTAB loading

Salim, Mashitah Mad; Malek, Nik Ahmad Nizam Nik; Ramli, Nur Isti’anah; Hanim, Siti Aishah Mohd; Hamdan, Salehhuddin

doi:10.11113/mjfas.v10n3.267

Cited by 6 publications

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“…Infections with E. coli can be the cause of diseases such as diarrhea, urinary tract infections, respiratory illness and pneumonia, septicemia, meningitis, and other infections [63,64]. Last, but not least, Candida albicans is an opportunistic fungal pathogen responsible for superficial mucosal infections and life-threatening systemic candidiasis [23,65,66]. All three genera are important etiological agents of implant-associated infections and orthopedic infections.…”

Section: Resultsmentioning

confidence: 99%

Nitrogen and Bromide Co-Doped Hydroxyapatite Thin Films with Antimicrobial Properties

et al. 2021

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Hydroxyapatite (Ca10(PO4)6(OH)2, HAp), due to its high biocompatibility, is widely used as biomaterial. Doping with various ions of hydroxyapatite is performed to acquire properties as close as possible to the biological apatite present in bones and teeth. In this research the results of a study performed on thin films of hydroxyapatite co-doped with nitrogen and bromine (NBrHAp) are presented for the first time. The NBrHAp suspension was obtained by performing the adapted co-precipitation method using cetyltrimethylammonium bromide (CTAB). The thin layers of NBrHAp were obtained by spin-coating. The stability of the NBrHAp suspension was examined by ultrasound measurements. The thin layers obtained by the spin-coating method were examined by scanning electron microscopy (SEM), optical microscopy (OM), and metallographic microscopy (MM). The presence of nitrogen and bromine were highlighted by energy-dispersive X-ray spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS) studies. Fourier transform infrared spectroscopy (FTIR) was used to highlight the chemical status of nitrogen and bromine. In addition, the powder obtained from the NBrHAp suspension was analyzed by XRD. Moreover, the in vitro antimicrobial activity of the NBrHAp suspensions and coatings was investigated using the reference microbial strains Staphylococcus aureus ATCC 25923, Escherichia coli ATCC 25922, and Candida albicans ATCC 10231. The results highlighted the successful obtainment of N and Br co-doped hydroxyapatite suspension for the first time by an adapted co-precipitation method. The obtained suspension was used to produce pure NBrHAp composite thin films with superior morphological properties. The NBrHAp suspensions and coatings exhibited in vitro antimicrobial activity against bacterial and fungal strains and revealed their good antimicrobial activity.

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Section: Resultsmentioning

confidence: 99%

Nitrogen and Bromide Co-Doped Hydroxyapatite Thin Films with Antimicrobial Properties

et al. 2021

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“…Comparing HDTMA-VMT with other used adsorbents from literature such as Kanaujia et al (2015), Hanumantharao et al (2011), Salim et al (2014, Rayappan et al (2014), andRani et al (2012) among others, it has low efficiency in fluoride removal in groundwater. Table 4 shows some of the reduction effects of competing anions on defluoridation from literature.…”

Section: Resultsmentioning

confidence: 99%

Defluoridation of groundwater from Siloam Village, Limpopo Province, South Africa, using vermiculite modified with hexadecyltrimethylammonium

et al. 2020

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South Africa is a water-scarce nation, and this has resulted to the use of groundwater as one of the alternative sources. Owing to the low socio-economic status of some communities in rural areas, where modern water purification equipment is not available, groundwater is consumed without prior treatment. Siloam Village, Limpopo Province, is one of such communities; however, the presence of excess fluoride in groundwater has led to the occurrence of fluorosis, which constitutes a health concern. Vermiculite which is a clay mineral is highly available in Limpopo Province and has not been exploited for defluoridation; thus, this study was aimed at the defluoridation of groundwater in Siloam Village using vermiculite ABOUT THE AUTHORS Ologundudu Tayo Oladipo, MSc, holds MSc. in Environmental Sciences. His research interests focus on groundwater including Hydrochemistry, Water Quality and Remediation among others. Durowoju Olatunde Samod*, PhD, holds PhD in Environmental Sciences with specialisation in Environmental geochemistry and Health. His research focus includes Hydrogeochemistry and Isotope hydrology, Environmental geochemistry and Health, Biogeochemistry and Ecohydrology, Water Quality and Remediation within environmental media. Odiyo John Ogony, PhD, holds PhD in Civil Engineering with specialisation in Water Engineering. His research focus includes hydrology, hydrogeology, environmental media including soils, air and water and wastewater resources and remediation, water quality and water treatment, water resources management and open channels hydraulics. Ekosse Georges-Ivo Ekosse PhD, DTech, FAAS, holds PhD in Soil Mineralogy and Doctor of Technology in Environmental Health and is Senior Professor of Applied Clay Mineralogy and Environmental Geology. His research covers clays and clay minerals, human and enzootic geophagia, extraction metallurgy, environmental geochemistry, natural and artificial porous materials, and reconstruction of paleoenvironments.

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“…The commercial zeolite NaY, purchased from the Zeolyst International (CBV 100), comprises these properties: SiO 2 /Al 2 O 3 mole ratio of 5.1, nominal cation in sodium form (Na 2 O weight (%): 13.0), unit cell size of 24.65Å and surface area of 900 m 2 /g. The external cation exchange capacity (ECEC) of zeolite NaY was 0.53 mequiv/g [9]. 3-aminopropyltriethoxysilane (APTES) and dichloromethane (DCM) were purchased from Aldrich and Qrec, respectively.…”

Section: Methodsmentioning

confidence: 99%

Antibacterial Activity of Amine-Functionalized Zeolite NaY against <i>Staphylococcus aureus</i> ATCC6538 and <i>Escherichia coli</i> ATCC11229

Hanim

Malek

Ibrahim

et al. 2015

AMM

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The antibacterial activity of functionalized zeolite NaY (CBV100) with different concentrations of 3-aminopropyltriethoxysilane (APTES) (0.01, 0.05, 0.20 and 0.40 M) was studied against Staphylococcus aureus ATCC 6538 (Gram positive) and Escherichia coli ATCC 11229 (Gram negative) through disc diffusion technique (DDT). The characterization of functionalized zeolite NaY with fourier transform infrared (FTIR) spectroscopy indicated the attachment of APTES on zeolite NaY. Through DDT, the inhibition zone of functionalized zeolite NaY increased proportionally to the amount of the amine-functional group attached onto zeolite NaY. Functionalized zeolite NaY showed higher antibacterial activity against Gram-positive compared to Gram-negative bacteria. It can be concluded from this study that amine-functionalized zeolite NaY shows evidence of antibacterial activities.

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Antibacterial activity of CTAB-modified zeolite NaY with different CTAB loading

Cited by 6 publications

References 0 publications

Nitrogen and Bromide Co-Doped Hydroxyapatite Thin Films with Antimicrobial Properties

Nitrogen and Bromide Co-Doped Hydroxyapatite Thin Films with Antimicrobial Properties

Defluoridation of groundwater from Siloam Village, Limpopo Province, South Africa, using vermiculite modified with hexadecyltrimethylammonium

Antibacterial Activity of Amine-Functionalized Zeolite NaY against <i>Staphylococcus aureus</i> ATCC6538 and <i>Escherichia coli</i> ATCC11229

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