Green synthesis of La2O3–LaPO4 nanocomposites using Charybdis natator for DNA binding, cytotoxic, catalytic, and luminescence applications

A one-step biosynthetic pathway for the fabrication of La –LaPO nanocomposites (NCs) was developed, employing . The structure and phase changes of the NCs were confirmed, and their diverse applications were explored. The peaks at 206, 332, and 442 nm in UV-DRS studies confirmed the formation of La –...

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Bibliographic Details
Published in:Green processing and synthesis 2024-10, Vol.13 (1), p.e6044-92
Main Authors: Sivaraman, Rajendran Muthukumar, Gracia, Kirubaharan Daphne Jacinth, Thavamani, Seth Sheeba, Amaladhas, Thomas Peter, Devanesan, Sandhanasamy, AlSalhi, Mohamad Saleh
Format: Article
Language:English
Subjects:
Biocompatibility
Charybdis natator
Chemical synthesis
Cytotoxicity
Diffraction patterns
DNA binding
DNA biosynthesis
Dyes
Electrons
Fabrication
Fourier analysis
Fourier transforms
Hexagonal phase
Infrared analysis
la2o3–lapo4 nanocomposites
Lanthanum
Lanthanum oxides
LaPO
Luminescence
methyl orange degradation
Nanocomposites
Photoelectron spectroscopy
Photoelectrons
Spectral analysis
Spectrum analysis
Ultraviolet radiation
X ray photoelectron spectroscopy
X-ray diffraction
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Summary:A one-step biosynthetic pathway for the fabrication of La –LaPO nanocomposites (NCs) was developed, employing . The structure and phase changes of the NCs were confirmed, and their diverse applications were explored. The peaks at 206, 332, and 442 nm in UV-DRS studies confirmed the formation of La –LaPO NCs. Fourier transform infrared spectral analysis revealed La–O stretching at 716 cm and the presence of bands at 532, 560, 578, and 618 cm . X-ray diffraction patterns showed a hexagonal phase of La with peaks at 2 11.04 and 28.57 and monoclinic LaPO phases at 2 = 18.79 and 41.88. X-ray photoelectron spectroscopy data showed binding energy peaks at 836.04 and 852.77 eV, corresponding to 3d and 3d of the lanthanum. The average particle size from HR-TEM analysis was 28.95 nm after annealing at 800°C and SAED patterns confirmed their crystalline nature. The high affinity of the NCs towards ctDNA was established by a binding constant value of 2.08 (mg·mL . Under UV exposure, 96% degradation efficiency for methyl orange within 120 min at pH 4 was displayed, with a rate constant of 2.72 × 10 min affirming their photocatalytic potential. Their biocompatibility was assessed through MTT assay and luminescence characteristics were evaluated.
ISSN:2191-9542
2191-9550
DOI:10.1515/gps-2024-0092