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  1. Article ; Online: Synthesis, Spectroscopic, Optical, and Thermal Characterizations of Zinc (Tris)-Thiourea Sulfate: A Metal-Organic Crystal.

    Albert, Helen Merina / Jemima, T / Gonsago, C Alosious

    Journal of fluorescence

    2023  Volume 34, Issue 3, Page(s) 1057–1063

    Abstract: In the current research, Zinc (tris)-thiourea sulfate (ZTTS), a metal-organic crystal, has been synthesized using the slow solvent evaporation technique. Powder-X-ray diffraction (PXRD) analysis, Fourier transform infrared (FT-IR) spectroscopy, UV-Vis ... ...

    Abstract In the current research, Zinc (tris)-thiourea sulfate (ZTTS), a metal-organic crystal, has been synthesized using the slow solvent evaporation technique. Powder-X-ray diffraction (PXRD) analysis, Fourier transform infrared (FT-IR) spectroscopy, UV-Vis spectroscopy, photoluminescence (PL) spectroscopy, and thermal, and second harmonic generation measurements have all been applied to describe the as-synthesized ZTTS crystals. The synthesized samples crystallized in an orthorhombic structure, based on XRD analysis. The functional groups of ZTTS samples were validated by FT-IR analysis. The extensive transparency of ZTTS over the UV-visible spectral region has been confirmed by UV-Vis analysis and the band gap has been estimated as 4.43 eV. The photoluminescence spectra exhibit a prominent emission peak around the wavelength of 484 nm and significant emission peaks at 444 and 513 nm with an excitation wavelength of 250 nm. The SHG test illustrates the creation of second harmonic signals from the ZTTS samples. The thermal response of the as-synthesized ZTTS was shown by the TG/DTA measurements. The results suggest that as-synthesized ZTTS crystals could be used as a possible nonlinear optical substance.
    Language English
    Publishing date 2023-07-15
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2016892-5
    ISSN 1573-4994 ; 1053-0509
    ISSN (online) 1573-4994
    ISSN 1053-0509
    DOI 10.1007/s10895-023-03335-8
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Synthesis, Spectroscopic, and Antibacterial Characterizations of Cadmium-Based Nanoparticles.

    Rhoda, J Christina / Chellammal, S / Albert, Helen Merina / Ravichandran, K / Gonsago, C Alosious

    Journal of fluorescence

    2023  Volume 34, Issue 2, Page(s) 587–598

    Abstract: In the current study, the co-precipitation technique was employed for the synthesis of Cadmium oxide (CdO) and Copper‒doped Cadmium oxide (Cu‒CdO) nanoparticles. The synthesized samples were subjected to powder X-Ray diffraction (P-XRD), Field emission ... ...

    Abstract In the current study, the co-precipitation technique was employed for the synthesis of Cadmium oxide (CdO) and Copper‒doped Cadmium oxide (Cu‒CdO) nanoparticles. The synthesized samples were subjected to powder X-Ray diffraction (P-XRD), Field emission scanning electron microscopy (FE-SEM), Energy-dispersive X-ray (EDX), Fourier transforms Infrared (FT-IR), UV-Vis spectroscopy, photoluminescence (PL), laser-induced fluorescence spectroscopy and antibacterial investigations. According to the P-XRD analysis, both the samples were simple cubic in structure and have average grain sizes of 54 and 28 nm, respectively. FE-SEM was deployed to explore the surface textures of the samples. EDX technique was used to look at the elemental compositions of the samples. The technique of FT-IR was employed to identify the vibrational modes. UV-Vis spectra in diffuse reflectance mode were obtained and the optical bandgaps of the CdO and Cu‒CdO samples were obtained as 4.52 eV and 2.83 eV, respectively. The photoluminescence studies were conducted at an excitation wavelength of 300 nm and emission peaks were red-shifted in both samples. Fluorescence spectroscopy was applied to explore the lifetimes of synthesized nanoparticles. The technique of Agar-well diffusion was applied to assess the antibacterial performance of the generated nanoparticles against Micrococcus Luteus (gram-positive) and Escherichia coli (gram-negative) bacterium at variable concentrations. Both samples in the current study are significantly effective against both bacterial strains.
    Language English
    Publishing date 2023-06-16
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2016892-5
    ISSN 1573-4994 ; 1053-0509
    ISSN (online) 1573-4994
    ISSN 1053-0509
    DOI 10.1007/s10895-023-03290-4
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Synthesis, Structural, Spectroscopic, Fluorescence, and Dielectric Studies of Bis-(4-Aminopyridine)-Zinc(II) Acetate: A Metal-Organic Crystal.

    Albert, Helen Merina / Priya, R / Ahire, Bajirao Bhila / Devi, N S M P Latha / Sailaja, J Madhuri / Tabassum, S Raziya / Kumar, Nellore Manoj / Gonsago, C Alosious

    Journal of fluorescence

    2023  

    Abstract: The advancement of crystalline growth and characterization tools allows us to investigate novel nonlinear optical substances suitable for photonic applications. Bis-(4-aminopyridine)-zinc(II) acetate (B4AZA), a metal-organic crystal was produced in this ... ...

    Abstract The advancement of crystalline growth and characterization tools allows us to investigate novel nonlinear optical substances suitable for photonic applications. Bis-(4-aminopyridine)-zinc(II) acetate (B4AZA), a metal-organic crystal was produced in this study using the slow evaporation procedure at room temperature. Analytical studies such as X-ray crystallography, Fourier transform infrared (FT-IR), UV-visible (UV-Vis), fluorescence, second harmonic generation (SHG), and dielectric tests were used to characterize the as-grown B4AZA crystals. According to the solubility data, the sample has a positive temperature coefficient of solubility. The crystallographic findings show that the B4AZA crystallized in a monoclinic structure with the P2
    Language English
    Publishing date 2023-09-26
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2016892-5
    ISSN 1573-4994 ; 1053-0509
    ISSN (online) 1573-4994
    ISSN 1053-0509
    DOI 10.1007/s10895-023-03429-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

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    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

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