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Mugundan S, Praveen P, Sridhar S, Prabu S, Lawrence Mary K, Ubaidullah M, Shaikh SF, Kanagesan S. Sol-gel synthesized barium doped TiO2 nanoparticles for solar photocatalytic application. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109340] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Balaji J, Srinivasan P, Prabu S, George M, Sajan D. Growth and dielectric studies of toluidine tartrate single crystals:A novel organic NLO material. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127750] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Arasu MV, Madankumar A, Theerthagiri J, Salla S, Prabu S, Kim HS, Al-Dhabi NA, Arokiyaraj S, Duraipandiyan V. Synthesis and characterization of ZnO nanoflakes anchored carbon nanoplates for antioxidant and anticancer activity in MCF7 cell lines. Materials Science and Engineering: C 2019; 102:536-540. [DOI: 10.1016/j.msec.2019.04.068] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 04/01/2019] [Accepted: 04/20/2019] [Indexed: 01/20/2023]
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Venkatesan R, Prabu S. Hyperspectral Image Features Classification Using Deep Learning Recurrent Neural Networks. J Med Syst 2019; 43:216. [DOI: 10.1007/s10916-019-1347-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Accepted: 05/20/2019] [Indexed: 11/28/2022]
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Abstract
Being a rare clinical entity, discal cyst presents indistinguishably from other causes of lower back pain and radiculopathy. It is an extremely rare pathology with unclear pathogenesis, indeterminate natural history with no consensus on the ideal management of the condition. We report a rare case of discal cyst in a patient who presented to our centre with localised low back pain and subsequently left sided radicular pain. With the aid of MRI and with clear surgical indication we proceeded with endoscopic removal of the cyst and intraoperatively confirmed its origin from the adjacent disc. The patient had immediate relief of his symptoms and no postoperative complications. We recommend that endoscopic surgery can be an effective alternative to conventional open surgery for discal cyst of the lumbar spine.
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Affiliation(s)
- R Sanjeevan
- Department of Orthopaedics, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - S Prabu
- Department of Orthopaedics, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - A Azizul
- Department of Orthopaedics, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - Y Abdul-Halim
- Department of Orthopaedics, Universiti Sains Malaysia, Kubang Kerian, Malaysia
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Prabu S, Aarthy S. Tri-texture feature extraction and region growing-level set segmentation in breast cancer diagnosis. IJBET 2018. [DOI: 10.1504/ijbet.2018.10011134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Sasikala V, Sajan D, Joseph L, Balaji J, Prabu S, Srinivasan P. Spectroscopic and DFT-based computational studies on the molecular electronic structural characteristics and the third-order nonlinear property of an organic NLO crystal: ( E )- N ′-(4-chlorobenzylidene)-4-methylbenzenesulfonohydrazide. Chem Phys Lett 2017. [DOI: 10.1016/j.cplett.2017.02.039] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Prabu S, Sivakumar K, Nayaki SK, Rajamohan R. Host-guest interaction of cytidine in β-cyclodextrin microcavity: Characterization and docking study. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.04.017] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Balaji J, Prabu S, Srinivasan P, Srinivasan T, Velmurugan D. Studies on the growth and characterization of a non linear optical crystal: 3 Hydroxy Pyridinium Tartrate Mono Hydrate (3HPTMH). Spectrochim Acta A Mol Biomol Spectrosc 2015; 144:139-147. [PMID: 25754389 DOI: 10.1016/j.saa.2015.01.091] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Revised: 12/19/2014] [Accepted: 01/29/2015] [Indexed: 06/04/2023]
Abstract
Single crystals of 3 Hydroxy Pyridinium Tartrate Mono Hydrate (3HPTMH) was synthesised and successfully grown in mixed solvent of ethanol and water by slow evaporation technique at room temperature. 3HPTMH belongs to the orthorhombic crystal system with space group P212121. The lattice parameters of 3HPTMH are a=7.4597(2)Å, b=8.7012(3)Å, c=17.8786(5)Å, V=1160.47(6)Å(3), obtained by single crystal X ray diffraction studies. Hyperpolarizability and HOMO-LUMO analysis were performed for grown crystal using DFT calculations using Gaussian 03 software. Functional groups were identified by FT-IR studies. The lower cut-off wavelength of the 3HPTMH has been identified by UV-Vis study. The thermal behavior has been studied by thermal gravimetric analysis and differential thermal analysis. The powder second harmonic generation efficiency of 3HPTMH was compared with KDP.
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Affiliation(s)
- J Balaji
- Department of Physics, University College of Engineering: Panruti (A Constituent College of Anna University Chennai), Panruti 607 106, India
| | - S Prabu
- Department of Physics, University College of Engineering: Panruti (A Constituent College of Anna University Chennai), Panruti 607 106, India
| | - P Srinivasan
- Department of Physics, University College of Engineering: Panruti (A Constituent College of Anna University Chennai), Panruti 607 106, India.
| | - T Srinivasan
- CAS in Crystallography and BioPhysics, University of Madras, Chennai 600 025, India
| | - D Velmurugan
- CAS in Crystallography and BioPhysics, University of Madras, Chennai 600 025, India
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Balaji J, Prabu S, Xavier JJF, Srinivasan P. Crystal structure of N'-[(E)-(4-chloro-phen-yl)(phen-yl)methyl-idene]-4-methyl-benzene-sulfono-hydrazide. Acta Crystallogr E Crystallogr Commun 2015; 71:o45-o46. [PMID: 25705499 PMCID: PMC4331850 DOI: 10.1107/s2056989014026723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Accepted: 12/05/2014] [Indexed: 06/04/2023]
Abstract
The title compound, C20H17ClN2O2S, was obtained by a condensation reaction between 4-chloro-benzo-phenone and tosyl hydrazide. The plane of the methyl-substituted benzene ring forms dihedral angles of 20.12 (12) and 78.43 (13)° with those of the chlorine-substituted benzene ring and the benzene ring, respectively, with the last two rings forming a dihedral angle of 67.81 (13)°. The chlorine substituent was also found to be 0.868 (2):0.132 (2) disordered over these two rings. In the crystal, mol-ecules are linked through pairs of N-H⋯O hydrogen bonds, giving centrosymmetric cyclic dimers [graph set R 2 (2)(8)], which are linked by weak C-H⋯O and C-H⋯Cl inter-actions into a chain structure which extends along the a-axis direction.
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Affiliation(s)
- J. Balaji
- Department of Physics, UCEP, Panruti 607 106, TamilNadu, India
| | - S. Prabu
- Department of Physics, UCEP, Panruti 607 106, TamilNadu, India
| | - J. J. F. Xavier
- Department of Chemistry, UCEP, Panruti 607 106, TamilNadu, India
| | - P. Srinivasan
- Department of Physics, UCEP, Panruti 607 106, TamilNadu, India
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Balaji J, John Francis Xavier J, Prabu S, Srinivasan P. Crystal structure of (E)-N'-(4-chloro-benzyl-idene)-4-methyl-benzene-sulfono-hydrazide: a hexa-gonal polymorph. Acta Crystallogr Sect E Struct Rep Online 2014; 70:o1250-o1251. [PMID: 25553026 PMCID: PMC4257446 DOI: 10.1107/s1600536814023721] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Accepted: 10/28/2014] [Indexed: 06/04/2023]
Abstract
The title compound, C14H13ClN2O2S, crystallized in the enanti-omorphic defining hexa-gonal space group P61 [Flack parameter = -0.02 (7)]. The partially hydrated form of the same compound, crystallizing in the triclinic space group P-1, has been reported previously [Kia et al. (2009b). Acta Cryst. E65, o1119], as has the crystal structure of the bromo derivative, also crystallizing in the space group P-1 [Kia et al. (2009a). Acta Cryst. E65, o821]. The title mol-ecule is non-planar with the planes of the benzene rings being inclined to one another by 76.62 (13)°, and has an E conformation about the C=N bond. In the crystal, mol-ecules are linked via N-H⋯O hydrogen bonds forming 61 helical chains running along [001]. The chains are linked via C-H⋯O hydrogen bonds, C-H⋯π inter-actions and short Cl⋯O [3.015 (3) Å] inter-actions, forming a three-dimensional structure.
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Affiliation(s)
- J. Balaji
- Department of Physics, University College of Engineering Panruti, Tamil Nadu 607 106, India
| | - J. John Francis Xavier
- Department of Chemistry, University College of Engineering Panruti, Tamil Nadu 607 106, India
| | - S. Prabu
- Department of Physics, University College of Engineering Panruti, Tamil Nadu 607 106, India
| | - P. Srinivasan
- Department of Physics, University College of Engineering Panruti, Tamil Nadu 607 106, India
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Prabu S, Nagalakshmi R, Balaji J, Srinivasan P. Investigations on the vibrational modes and non-linear optical properties of 4-Fluoro Chalcone crystal. Spectrochim Acta A Mol Biomol Spectrosc 2014; 129:114-120. [PMID: 24727169 DOI: 10.1016/j.saa.2014.03.030] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Revised: 03/03/2014] [Accepted: 03/18/2014] [Indexed: 06/03/2023]
Abstract
Organic Nonlinear Optical (NLO) crystals of 4-fluorochalcone (4FC) were synthesized and grown by slow evaporation solution growth method. The grown crystals have been characterised by powder X-ray diffraction, factor group analysis, FTIR, FT-Raman, UV-Vis Spectroscopy, powder SHG and Vickers microhardness tests. Theoretical quantum chemical analysis were performed to determine the first order hyperpolarizability (β) and HOMO-LUMO analysis of the title compound were computed by GAUSSIAN 03 package.
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Affiliation(s)
- S Prabu
- University College of Engineering Panruti, Panruti 607 106, India(1)
| | - R Nagalakshmi
- Department of Physics, National Institute of Technology, Tiruchirappalli, India
| | - J Balaji
- University College of Engineering Panruti, Panruti 607 106, India(1)
| | - P Srinivasan
- University College of Engineering Panruti, Panruti 607 106, India(1).
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Prabu S, Nagalakshmi R, Srinivasan P. Investigations on the physico chemical properties of 4-bromochalcone single crystals for nonlinear optical applications. Spectrochim Acta A Mol Biomol Spectrosc 2013; 103:45-52. [PMID: 23257329 DOI: 10.1016/j.saa.2012.10.073] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2012] [Revised: 10/25/2012] [Accepted: 10/30/2012] [Indexed: 06/01/2023]
Abstract
Good quality yellow transparent single crystals of 4-bromochalcone (4BC) crystal have been synthesized and grown by slow evaporation solution growth method. The UV-Vis spectra was recorded for the grown crystal. The thermal behavior of the title crystal was studied. Fourier transform infrared and Raman spectral studies were performed for analyzing and assigning the vibrations and to identify the functional groups. The relative SHG efficiency of the material was investigated to explore the NLO characteristics for the first time in the literature. The SHG efficiency of the material is found to be 1.14 times greater than urea. Hyperpolarizability and HOMO-LUMO analysis of 4-bromochalcone (4BC) were performed with the help of Density Functional Theory (DFT) calculations using Gaussian 03 software.
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Affiliation(s)
- S Prabu
- Department of Physics, Anna University-Panruti Campus, Panruti 607 106, India
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