Synthesis of Schiff Base Encapsulated ZnS Nanoparticles : Characterization and Antibacterial Screening

Muhammad Saiful, Omar and Muhammad Nafis, M. N. M. Sanif and Nur Halilatul, Sadiqin Omar Ali and Malai Haniti, Sheikh Abdul Hamid and Hussein, Taha and Abdul Hanif, Mahadi and Ying, Woan Soon and Zainab, Ngaini and Mohd Yameany H., Rosli and Anwar, Usman (2020) Synthesis of Schiff Base Encapsulated ZnS Nanoparticles : Characterization and Antibacterial Screening. International Journal of Technology, 11 (7). pp. 1309-1318. ISSN 2087-2100

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In this study, Schiff bases containing salicylaldehyde moiety(namely salicylaldehyde2-methyl-3-thiosemicarbazone and salicylaldehyde triazole)were synthesized using the conventional refluxing method. The Schiff bases were utilized in the encapsulation of ZnS nanoparticles usingtheco-precipitation method. The nanoparticles were characterized using FTIR, UV-visible absorption spectroscopy, scanning electron microscopy, and energy dispersive X-ray analysis. X-ray diffraction analyses suggest that the Schiff base encapsulated ZnS particles form the cubic crystal phase of ZnS,with the average crystallite sizes being approximately between56 and 60 nm.The interaction between the Schiff bases and ZnS was also evaluated by photoluminescence spectroscopy. The antibacterial activities of the Schiff base encapsulated ZnS nanoparticles were screened against four different gram-positive and gram-negative bacterial strains (i.e.Escherichia coli, Bacillus subtilis, Pseudomonas aeruginosa,andStaphylococcus aureus)using the agar diffusion method. The antibacterial activities of the nanoparticles were compared withthose of their respective Schiff bases. Although in the current study the Schiff base encapsulated ZnSnanoparticles were found to be inactive against those bacteria, they could be applicable as multifunctional materials for fluorescence probes, photocatalysts, andother biological applications.

Item Type: Article
Uncontrolled Keywords: Antibacterial activity; Co-precipitation; Encapsulation; Schiff base; ZnS nanoparticles, unimas, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, ipta, education, research, Universiti Malaysia Sarawak
Subjects: Q Science > Q Science (General)
Divisions: Academic Faculties, Institutes and Centres > Faculty of Resource Science and Technology
Depositing User: Tuah
Date Deposited: 18 Dec 2020 02:33
Last Modified: 05 Apr 2021 01:59

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