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Your search keyword '"Yogeswari, B."' showing total 14 results
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14 results on '"Yogeswari, B."'

1. Graphene and Fullerene in Energy Storage Devices: A Comprehensive Review

Author

Yogeswari, B., Varatharaj, M., Deivanayaki, S., Malini, T., Anbarasu, P., Prakash, D., Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Bindhu, V., editor, Tavares, João Manuel R. S., editor, and Vuppalapati, Chandrasekar, editor

Published
2023
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4. Structural and spectral insights of doped and undoped L-alanine crystals.

Author

Delcy, V. Regina, Umadevi, V., Yogeswari, B., Banu, A. Sajitha, and Deivanayaki, S.

Subjects
CRYSTAL growth, SPATIAL arrangement, CRYSTAL structure, CRYSTAL lattices, MOLECULAR structure
Abstract

This research focuses on the structural and spectral insights of unadulterated and doped L-alanine crystals. Barium chloride is considered as the dopant in this study. The various crystals under study are synthesized using slow evaporation technique. The harvested crystals underwent comprehensive characterization through various analyses. The paper primarily delves into the structural and spectral characteristics of the developed crystals. The crystal structure was established utilizing X-ray diffraction (XRD) method which provides details of the spatial arrangement of atoms within the crystal lattice. Additionally, Fourier Transform Infrared (FTIR) Spectroscopy played a crucial role in identifying functional units, internal molecular structures, and the nature of chemical bonds present in the compound. The combination of these techniques contributes to a comprehensive under-standing of the physical and chemical properties of the Barium chloride-doped L-alanine crystals. This research offers valuable insights into crystal growth processes, doping effects, and the fundamental characteristics of the synthesized material. [ABSTRACT FROM AUTHOR]

Published
2024
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11. Growth of Non-enzymatic Cholesterol Biosensor using TiO2 Decorated Graphene Oxide with Bare GCE and PPy-GCE.

Author

DEIVANAYAKI, S., JAYAMURUGAN, P., ASHOKAN, S., KRISHNAN, V. GOPALA, and YOGESWARI, B.

Subjects
GRAPHENE oxide, CARBON electrodes, BIOSENSORS, CYCLIC voltammetry, DETECTION limit, CHOLESTEROL
Abstract

The cholesterol level determination is a significant clinical diagnostic solution for heart and, thrombosis problems. In this work, we examined a novel non-enzymatic cholesterol biosensor using cholesterol oxidase (ChOx) enzyme immobilized on TiO2 nanoparticles influenced by reduced graphene oxide (rGO) - polypyrrole (PPy) (rGO-TiO2/PPy-GCE) nanocomposite was developed on a glassy carbon electrode (GCE) and the higher sensing response with lower detection limits were observed. The electrochemical properties of GCE modified PPy (PPy-GCE) were studied using CV (Cyclic Voltammetry) and DPV (Differential Pulse Voltammetry). The reported sensor exhibited piecewise linearity in the range of 0.1 µM to 1 µM and 1 µM to 600 µM with the sensing response of 61.665 and 0.1466 (2 µA µMxcm) respectively. The detection limits of the sensor were found to be 32 nm. The results were repeatable and reproducible and this sensor can be applied to determine the cholesterol at real sample with satisfactory results. [ABSTRACT FROM AUTHOR]

Published
2021
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13. Growth of non-enzymatic cholesterol biosensor using TiO2decorated graphene oxide with bare GCE and PPy-GCE

Author

Deivanayaki, S., Jayamurugan, P., Ashokan, S., Gopala Krishnan, V., Yogeswari, B., Ubaidullah, Mohd, pandit, Bidhan, Sarma, G.V.S.S., and Narsetti, Hemanth Kumar

Abstract

In this work, we report an electrochemical cholesterol biosensor based on cholesterol oxidase(ChOx) enzyme immobilized on TiO2- nanoparticles – reduced graphene oxide(rGO) – polypyrrole (PPy) nanocomposite modified electrode.The electrochemical properties of GCE modified PPy (PPy-GCE) were studied using CV (Cyclic Voltammetry) and DPV (Differential Pulse Voltammetry). The developed sensor exhibited piecewise linearity from 0.1 μM to 1 μM and from 1 μM to 600 μM with the sensitivity of 61.665 and 0.1466 (2mA mM×cm) respectively. The limit of detection of the sensor was found to be 32 nm.

Published
2023
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14. Microsolvation and hydrogen bond interactions in Glycine Dipeptide: molecular dynamics and density functional theory studies.

Author

Yogeswari B, Kanakaraju R, Boopathi S, and Kolandaivel P

Subjects
Algorithms, Amino Acid Motifs, Hydrogen Bonding, Quantum Theory, Thermodynamics, Dipeptides chemistry, Glycine chemistry, Molecular Dynamics Simulation, Solvents chemistry, Water chemistry
Abstract

Molecular dynamics (MD) simulations were carried out to study the conformational characteristics of Glycine Dipeptide (GD) in the presence of explicit water molecules for over 10 ns with a MD time step of 2 fs. The density functional theory (DFT) methods with 6-311G** basis set have been employed to study the effects of microsolvation on the conformations of GD with 5-10 water molecules. The interaction energy with BSSE corrections and the strength of the intermolecular hydrogen bond interactions have been analyzed. The Bader's Atoms in Molecules (AIM) theory has been employed to investigate H-bonding patterns in water interacting complexes. The natural bond orbital (NBO) analysis has been carried out to analyze the charge transfer between proton acceptor to the antibonding orbital of the XH bond in the hydrated complexes. NMR calculations have been carried out at B3LYP/6-311G (2d, 2p) level of theory to analyse the changes in structure and hydrogen bonding environment that occur upon solvation., (Copyright © 2012 Elsevier Inc. All rights reserved.)

Published
2012
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