A5084168528- Advancements in Solid Oxide Fuel Cells
- Electronic and Structural Properties of Oxides
- Advanced Nanomaterials in Catalysis
- Catalytic Processes in Materials Science
- ZnO doping and properties
- Copper-based nanomaterials and applications
- Magnetic and transport properties of perovskites and related materials
- Synthesis and biological activity
- Fuel Cells and Related Materials
- Electrocatalysts for Energy Conversion
- Nanocluster Synthesis and Applications
- Quantum Dots Synthesis And Properties
- Nanoparticles: synthesis and applications
- Advanced Photocatalysis Techniques
- Phytochemistry and Bioactive Compounds
- Synthesis of Organic Compounds
- Advanced biosensing and bioanalysis techniques
- Plant-derived Lignans Synthesis and Bioactivity
- High-Temperature Coating Behaviors
- Nanomaterials for catalytic reactions
- Bioactive Compounds and Antitumor Agents
- Phytochemical compounds biological activities
- Chalcogenide Semiconductor Thin Films
- Multicomponent Synthesis of Heterocycles
- Carbon and Quantum Dots Applications
Pondicherry University
2015-2024
National Archives and Records Administration
2024
Sri Sivasubramaniya Nadar College of Engineering
2024
Lincoln University College
2021-2023
Acharya Nagarjuna University
2014-2022
Indian Institute of Chemical Technology
2009-2021
Andhra University
2021
Green Technology
2015-2020
Portsmouth Hospitals NHS Trust
2017-2020
University College London
2019
Enhancing the optical emission of cerium oxide nanoparticles is essential for potential biomedical applications. In present work, we report a simple chemical precipitation technique to synthesize europium-doped nanostructures enhance properties. Structural and properties showed an acute dependence on concentration oxygen ion vacancy trivalent cerium, which, in turn, could be modified by dopant annealing temperature. Results from X-ray photoelectron spectroscopy increase tetravalent 85% at...
Ceria nanoparticles with 20 and 40 at.% RE (RE = Y, Sm, Gd, Yb) dopants were synthesized through a microemulsion method. Independently of the dopant nature concentration, nearly monodispersed size 3–5 nm observed in high resolution transmission electron microscopic analysis. The ceria lattice either expands or contracts depending on cation ionic radii, as indicated by x-ray diffraction studies. X-ray photoelectron Raman spectroscopic studies used to quantify cerium oxidation state oxygen...
Hydrogen is an environmentally friendly alternative to conventional fossil fuels and considered as a renewable energy carrier for meeting the ever-increasing demand. Although hydrogen abundant on earth in form of compounds such water, producing molecular demands large amount energy. A solid oxide electrolysis cell (SOEC) electrochemical device which generates from various sources. An SOEC uses high temperature (>800°C) electrolyse water with efficiency assisted by thermodynamically...
Cytocompatible, co-doped cerium oxide nanoparticles exhibited strong upconversion properties that were found to kill lung cancer cells by inducing apoptosis thereby demonstrating the potential be used as clinical contrast agents for imaging and therapeutic treatment of cancer.
Nanoceria has shown excellent biomedical properties for potential use in treatment of diseases caused by reactive oxygen species (ROS). In the present work, synthesis and redox chemistry nanoceria presence polyhydroxyl groups such as glucose dextran are reported. The effect both acidic basic medium on oxidation state stability absence buffer was examined using UV−vis spectroscopy transmission electron microscopy. mediums show a difference terms size structure without interfering with...
Porous silica coatings were prepared by acid- and base-catalyzed sol−gel method. Surface morphology studies atomic force microscopy showed smooth surface for acid-catalyzed while base catalysis resulted in coarse particle morphology. On increasing the tetraethyl orthosilicate to molar ratio from 1:1 1:3, mean size of coating shifted 30 100 nm pore varied 4.7 14 nm. Infrared spectral analysis exhibited a change integrated peak intensities Si−O−Si Si−OH acid-and coatings. Textural an increase...
Nanoparticles have shown tremendous potential for effective drug delivery due to their tiny size and cell membrane penetration capabilities. Cellular targeting with nanoparticles is often achieved by surface modifications followed ligand conjugation. However, the efficiency of reaching target cells getting internalized depends on stability ligands chemical nature nanoparticle binding. Recent advancements in nanobiomaterials research proven superoxide dismutase (SOD) mimetic activity cerium...
Background: Cerium oxide nanoparticles (CeO 2 ) have been shown to be a novel therapeutic in many biomedical applications. Gold (Au) also attracted widespread interest due their chemical stability and unique optical properties. Thus, decorating Au on CeO would potential for exploitation the field. Methods: In present work, synthesized by combustion method were supported with 3.5% (Au/CeO deposition-precipitation method. The as-synthesized Au, , Au/CeO evaluated antibacterial activity...
In the present work, we focus on development of CePO4-CeO2 composite nanorods with peroxidase mimetic activity for sensitive detection hydrogen peroxide and glucose. The Ce3+/PO43- molar ratio (CP10:1, CP5:1, CP2:1) in hydrothermal reaction controlled formation pure CePO4, nanozymes different percentages CeO2, its crystal structure. A higher (CP10:1 or CP5:1) was required to obtain nanostructure, while a lower (CP2:1) sufficient fabricate CePO4 nanorods. presence peroxide, prepared catalyze...
The antioxidant activity of cerium oxide nanoparticles (CNPs) depends on the concentration oxygen vacancies and Ce3+ active sites. In present work, we report impact 5 mol % trivalent rare-earth-doped (RE3+ = Eu3+, Nd3+, Pr3+, La3+) CNPs oxidation state modulation property with respect to ionic radii. An increase in lattice parameter, strain, vacancy was observed as a function Among various dopants CNPs, La3+ higher radii having smaller crystallite size (7.9 nm) displayed better peroxidase,...
Absorption spectra recorded using UV-visible spectrometer during the reduction process of 4-nitrophenol to 4-aminophenol in presence reducing agent (NaBH<sub>4</sub>) and catalyst (Ni(NO<sub>3</sub>)<sub>2</sub>/CeO<sub>2</sub>).
Chrysin and its analogues, belongs to flavonoid family possess potential anti-tumour activity. The aim of this study is determine the molecular mechanism by which chrysin controls cell growth induce apoptosis in A375 cells. Effect analogues on viability cycle analysis was determined MTT assay flowcytometry. A series Western blots performed effect important regulatory proteins (Cdk2, cyclin D1, p53, p21, p27). fluorimetry calorimetry based assays conducted for characterization as HDAC...
Improved enzymatic activity and concentration-dependent selective activation of peroxidase oxidase combustion-synthesized nanoceria.
Iron-catalyzed dehydrogenative cross-coupling of carbonyl compounds with aliphatic peroxide was developed under mild conditions. A library linear alkylated and arylated peroxides are synthesized in good to excellent yield. This method is highly selective general for a range biologically important derivatives 2-oxindole, barbituric acid, 4-hydroxy coumarin functional group tolerance without the cleavage bond. peroxidation reaction upscalable grams also synthesizable continuous flow increased...