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Your search keyword '"Thirumamagal, R."' showing total 2 results
Start Over Author "Thirumamagal, R." Topic cerium
2 results on '"Thirumamagal, R."'

1. Green chemical approach towards the synthesis of CeO 2 doped with seashell and its bacterial applications intermediated with fruit extracts.

Author

Arasu MV, Thirumamagal R, Srinivasan MP, Al-Dhabi NA, Ayeshamariam A, Saravana Kumar D, Punithavelan N, and Jayachandran M

Subjects
Animals, Anti-Bacterial Agents pharmacology, Fruit chemistry, Fruit metabolism, Gram-Negative Bacteria drug effects, Gram-Positive Bacteria drug effects, Green Chemistry Technology, Microbial Sensitivity Tests, Plant Extracts chemistry, Reactive Oxygen Species metabolism, Spectroscopy, Fourier Transform Infrared, X-Ray Diffraction, Animal Shells chemistry, Anti-Bacterial Agents chemical synthesis, Anti-Bacterial Agents chemistry, Cerium chemistry, Metal Nanoparticles chemistry
Abstract

Nanomaterials of CeO 2 with A. vera were synthesized by using simple chemical method. Grapes drops are used as an oxidizing agent. Structural and morphological studies of nanomaterials of cerium oxide (CeO 2 ), were studied for combustion method of preparation. The precursor solution was initialized by a hydrothermal reaction. Cerium hydroxyl carbonate precursors which involves cerium (III) nitrate Ce(NO 3 ) 3 . 6 H 2 O with (1.0M) of seashell powder, 3% A. vera, extracts, grapes and pomegranate drops and this complex solution was used to produce the CeO 2 powder particles. We have prepared another sample with 5% of Aloe vera extract and found that 3% Aloe vera extract has lesser grain size and enhanced band gap values, so the article explained the sample analysis of combination with 3% extract of Aloe vera. The product has the rod pattern which was the unusual features appear to originate from the unique crystal chemistry aspects. From the optical absorption spectrum, it has been shown that the CeO 2 rods have 3.847eV of direct band gap energy. The minimum inhibitory concentration (MIC) values of the synthesized compounds exhibited activity towards various microbial pathogens such as B. subtilis (15μg/mL), S. aureus (50μg/mL), S. epidermidis (20μg/mL), E. faecalis (25μg/mL) and towards E. coli (100μg/mL), K. pneumoniae (50μg/mL) and P. aeruginosa (75μg/mL) respectively. The tests on bacterial activities confirmed that the CeO 2 rods are suitable hand for the biological applications. The seashell structure and the phytochemical contents of A. vera might enhance its bacterial activities., (Copyright © 2017 Elsevier B.V. All rights reserved.)

Published
2017
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2. Green chemical approach towards the synthesis of CeO 2 doped with seashell and its bacterial applications intermediated with fruit extracts

Author

Mariadas Valan Arasu, D. Saravana Kumar, Naif Abdullah Al-Dhabi, A. Ayeshamariam, N. Punithavelan, Thirumamagal R, M. Jayachandran, and M. P. Srinivasan

Subjects
0301 basic medicine, Cerium oxide, Biophysics, chemistry.chemical_element, 02 engineering and technology, Aloe vera, Nanomaterials, 03 medical and health sciences, Minimum inhibitory concentration, Oxidizing agent, Botany, Seashell, Radiology, Nuclear Medicine and imaging, Radiation, Radiological and Ultrasound Technology, biology, Chemistry, 021001 nanoscience & nanotechnology, biology.organism_classification, Cerium, 030104 developmental biology, Phytochemical, visual_art, visual_art.visual_art_medium, 0210 nano-technology, Nuclear chemistry
Abstract

Nanomaterials of CeO2 with A. vera were synthesized by using simple chemical method. Grapes drops are used as an oxidizing agent. Structural and morphological studies of nanomaterials of cerium oxide (CeO2), were studied for combustion method of preparation. The precursor solution was initialized by a hydrothermal reaction. Cerium hydroxyl carbonate precursors which involves cerium (III) nitrate Ce(NO3)3. 6 H2O with (1.0M) of seashell powder, 3% A. vera, extracts, grapes and pomegranate drops and this complex solution was used to produce the CeO2 powder particles. We have prepared another sample with 5% of Aloe vera extract and found that 3% Aloe vera extract has lesser grain size and enhanced band gap values, so the article explained the sample analysis of combination with 3% extract of Aloe vera. The product has the rod pattern which was the unusual features appear to originate from the unique crystal chemistry aspects. From the optical absorption spectrum, it has been shown that the CeO2 rods have 3.847eV of direct band gap energy. The minimum inhibitory concentration (MIC) values of the synthesized compounds exhibited activity towards various microbial pathogens such as B. subtilis (15μg/mL), S. aureus (50μg/mL), S. epidermidis (20μg/mL), E. faecalis (25μg/mL) and towards E. coli (100μg/mL), K. pneumoniae (50μg/mL) and P. aeruginosa (75μg/mL) respectively. The tests on bacterial activities confirmed that the CeO2 rods are suitable hand for the biological applications. The seashell structure and the phytochemical contents of A. vera might enhance its bacterial activities.

Published
2017

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