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M MADHUKARA NAIK
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Volume 44 All articles Published: 3 February 2021 Article ID 0006
M GIRIDHAR H S BHOJYA NAIK M C PRABHAKAR M MADHUKARA NAIK N BALLESH M C MAHESH
Capped and uncapped zinc sulphide (ZnS) nanoparticles (NPs) were successfully synthesized from used Zn–C battery, while surface was modified with capping agent 1-(carboxymethyl)-4-[(E)-2-(1,2-oxazol-3-yl)ethenyl]pyridin-1-ium. The structural properties of synthesized NPs were investigated using scanning electron microscope, energydispersive X-ray spectroscopy, powder X-ray diffraction (XRD), Fourier transform infrared and UV–visible spectroscopy.From XRD studies, cubic zinc blend structure for all the NPs was confirmed, and the crystallite size for uncapped and dyecapped NPs were calculated as 18.1 and 15.2 nm from Scherrer’s equation. Quantum espresso software was used to carryout the density functional theory calculations of dye. These dye-capped ZnS NPs proved to be excellent antibacterial agents and the minimum concentrations of pure ZnS and dye-capped ZnS NPs, which restrain the growth of bacteria, werefound to be 0.312 and 0.156 mg ml$^{-1}$ for
S. typhi and 1.25 and 0.625 mg ml$^{-1}$ forB. subtilis , respectively. The bioactivitydata suggest that these organic–inorganic hybrid NPs appeared to be a new class of antibacterial agents.
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Bulletin of Materials Science
Volume 46, 2023
All articles
Continuous Article Publishing mode
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Bulletin of Materials Science | News
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Dr Shanti Swarup Bhatnagar for Science and Technology
Posted on October 12, 2020Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
Chemical Sciences 2020Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
Physical Sciences 2020 -
Editorial Note on Continuous Article Publication
Posted on July 25, 2019Click here for Editorial Note on CAP Mode
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