Development and antibacterial application of nanocomposites

Effects of molar ratio on Ag2O–CuO nanocomposite synthesised via the microwave-assisted route

A. Rajabi, Mariyam Jameelah Ghazali, E. Mahmoudi, S. Azizkhani, N. H. Sulaiman, Abdul Wahab Mohammad, N. M. Mustafah, Ohnmar Htwe, Amaramalar Selvi Naicker

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A rapid and simple method for Ag2O–CuO nanocomposite synthesis is developed via the microwave-assisted reduction of Ag and Cu ions in an aqueous solution at different molar ratios of precursor. This study aimed to determine the effects of the chemical composition on the microstructure and antibacterial properties of the materials. X-ray diffraction confirmed the presence of the main phases (Ag2O and CuO) that were successfully synthesised in situ to form a nanocomposite. Field emission scanning electron microscopy and transmission electron microscopy verified that increased Cu ion concentration significantly affected the microstructure of the nanomaterials. The antibacterial activity of the synthesised materials was evaluated using Escherichia coli by estimating the diameter of inhibition zone. Results indicated that an increase in the Cu ion concentration was associated with increased strong antibacterial activity toward E. coli.

Original languageEnglish
Pages (from-to)21591-21598
Number of pages8
JournalCeramics International
Volume44
Issue number17
DOIs
Publication statusPublished - 1 Dec 2018

Fingerprint

Nanocomposites
Microwaves
Ions
Escherichia coli
Microstructure
Nanostructured materials
Field emission
Transmission electron microscopy
X ray diffraction
Scanning electron microscopy
Chemical analysis

Keywords

  • Inhibition zone
  • Microwave synthesis
  • Morphology
  • Nanocomposite
  • Wettability

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

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abstract = "A rapid and simple method for Ag2O–CuO nanocomposite synthesis is developed via the microwave-assisted reduction of Ag and Cu ions in an aqueous solution at different molar ratios of precursor. This study aimed to determine the effects of the chemical composition on the microstructure and antibacterial properties of the materials. X-ray diffraction confirmed the presence of the main phases (Ag2O and CuO) that were successfully synthesised in situ to form a nanocomposite. Field emission scanning electron microscopy and transmission electron microscopy verified that increased Cu ion concentration significantly affected the microstructure of the nanomaterials. The antibacterial activity of the synthesised materials was evaluated using Escherichia coli by estimating the diameter of inhibition zone. Results indicated that an increase in the Cu ion concentration was associated with increased strong antibacterial activity toward E. coli.",
keywords = "Inhibition zone, Microwave synthesis, Morphology, Nanocomposite, Wettability",
author = "A. Rajabi and Ghazali, {Mariyam Jameelah} and E. Mahmoudi and S. Azizkhani and Sulaiman, {N. H.} and Mohammad, {Abdul Wahab} and Mustafah, {N. M.} and Ohnmar Htwe and {Selvi Naicker}, Amaramalar",
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T2 - Effects of molar ratio on Ag2O–CuO nanocomposite synthesised via the microwave-assisted route

AU - Rajabi, A.

AU - Ghazali, Mariyam Jameelah

AU - Mahmoudi, E.

AU - Azizkhani, S.

AU - Sulaiman, N. H.

AU - Mohammad, Abdul Wahab

AU - Mustafah, N. M.

AU - Htwe, Ohnmar

AU - Selvi Naicker, Amaramalar

PY - 2018/12/1

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N2 - A rapid and simple method for Ag2O–CuO nanocomposite synthesis is developed via the microwave-assisted reduction of Ag and Cu ions in an aqueous solution at different molar ratios of precursor. This study aimed to determine the effects of the chemical composition on the microstructure and antibacterial properties of the materials. X-ray diffraction confirmed the presence of the main phases (Ag2O and CuO) that were successfully synthesised in situ to form a nanocomposite. Field emission scanning electron microscopy and transmission electron microscopy verified that increased Cu ion concentration significantly affected the microstructure of the nanomaterials. The antibacterial activity of the synthesised materials was evaluated using Escherichia coli by estimating the diameter of inhibition zone. Results indicated that an increase in the Cu ion concentration was associated with increased strong antibacterial activity toward E. coli.

AB - A rapid and simple method for Ag2O–CuO nanocomposite synthesis is developed via the microwave-assisted reduction of Ag and Cu ions in an aqueous solution at different molar ratios of precursor. This study aimed to determine the effects of the chemical composition on the microstructure and antibacterial properties of the materials. X-ray diffraction confirmed the presence of the main phases (Ag2O and CuO) that were successfully synthesised in situ to form a nanocomposite. Field emission scanning electron microscopy and transmission electron microscopy verified that increased Cu ion concentration significantly affected the microstructure of the nanomaterials. The antibacterial activity of the synthesised materials was evaluated using Escherichia coli by estimating the diameter of inhibition zone. Results indicated that an increase in the Cu ion concentration was associated with increased strong antibacterial activity toward E. coli.

KW - Inhibition zone

KW - Microwave synthesis

KW - Morphology

KW - Nanocomposite

KW - Wettability

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