Publications by authors named "Sakkarapani Sudhahar"

Heavy metal ion pollution harms human health and the environment and continues to worsen. Here, we report the synthesis of boron (B), phosphorous (P), nitrogen (N), and sulfur (S) co-doped carbon dots (BP/NS-CDs) by a one-step facile hydrothermal process. The optimum synthetic parameters are of 180 °C temperature, 12 h reaction time and 15% of PBA mass.

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Heteroatom-doped photoluminescent (PL) carbon dots (CDs) have recently gained attention as optical sensors due to their excellent tunable properties. In this work, we propose a one-pot hydrothermal synthesis of PL nitrogen (N), sulfur (S), and phosphorus (P) co-doped carbon dots (NSP-CDs) using glutathione and phosphoric acid (HPO) as precursors. The synthesized NSP-CDs were characterized using different spectroscopic and microscopic techniques, including ultraviolet-visible (UV-Vis) spectroscopy, fluorescence spectroscopy, Fourier-transform infrared (FTIR), X-ray powder diffraction (XRD), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS) analysis.

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Article Synopsis
  • Hydrogel nanocomposites, particularly those incorporating silver nanoparticles (AgNPs) in a carrageenan-sodium alginate (CGN-SA) matrix, are gaining attention in biology due to their unique properties.
  • The study investigates the creation and analysis of these nanocomposites, confirming AgNPs' presence and dispersion through various spectroscopy and microscopy techniques, with a particle size of about 30 nm.
  • Results show low silver ion release from the hydrogel, high antibacterial effectiveness (over 89%) against both gram-positive and gram-negative bacteria, and good biocompatibility, suggesting these materials have potential for biomedical use.
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In this report, ZnO nanoparticles were biosynthesized using Paspalum scrobiculatum grains extract for the first time. GC-MS analysis explicated that diethyl phthalate was the major phytocompound with 94.09% in aqueous extract.

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