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Antibacterial and antioxidant properties of biosynthesized zinc oxide nanoparticles from Ceropegia candelabrum L. - An endemic species.
Murali, M; Mahendra, C; Rajashekar, N; Sudarshana, M S; Raveesha, K A; Amruthesh, K N.
Afiliación
  • Murali M; Applied Plant Pathology Laboratory, Department of Studies in Botany, University of Mysore, Manasagangotri, Mysuru 570 006, Karnataka, India.
  • Mahendra C; Applied Plant Pathology Laboratory, Department of Studies in Botany, University of Mysore, Manasagangotri, Mysuru 570 006, Karnataka, India.
  • Nagabhushan; Centre for Innovative Studies in Herbal Drug Technology, Department of Studies in Botany, University of Mysore, Manasagangotri, Mysuru 570 006, Karnataka, India.
  • Rajashekar N; Department of Botany, F.M.K.M. Cariappa College, Madikeri 521201, Karnataka, India.
  • Sudarshana MS; Applied Plant Pathology Laboratory, Department of Studies in Botany, University of Mysore, Manasagangotri, Mysuru 570 006, Karnataka, India.
  • Raveesha KA; Centre for Innovative Studies in Herbal Drug Technology, Department of Studies in Botany, University of Mysore, Manasagangotri, Mysuru 570 006, Karnataka, India.
  • Amruthesh KN; Applied Plant Pathology Laboratory, Department of Studies in Botany, University of Mysore, Manasagangotri, Mysuru 570 006, Karnataka, India. Electronic address: dr.knamruthesh@botany.uni-mysore.ac.in.
Spectrochim Acta A Mol Biomol Spectrosc ; 179: 104-109, 2017 May 15.
Article en En | MEDLINE | ID: mdl-28236681
Zinc oxide nanoparticles (ZnO-NPs) were synthesized for the first time from any of the species of Ceropegia. Presently, ZnO-NPs were synthesized from the leaf extract of Ceropegia candelabrum with zinc nitrate using a simple hydrothermal process. The synthesized ZnO-NPs showed an absorption peak at 320nm which is one of the characteristic features of ZnO-NPs. The FT-IR characterization revealed a spectrum band at 551.93cm-1 corresponding to the functional group metal oxide. SEM images showed agglomeration of nanoparticles with a hexagonal shape. XRD results are in corroboration with SEM images as the synthesized particles were of hexagonal wurtzite shape and the size of the particles was in the range of 12-35nm calculated using Scherrer's formula. The elemental analysis using EDS confirmed high zinc content of 70.48% stating that the process of biosynthesis of nanoparticles was carried out in accordance. The biosynthesized ZnO-NPs offered significant antibacterial potential against S. aureus, B. subtilis, E. coli and S. typhi. The antioxidant results revealed significant (p≤0.05) RSA from 0% to 55.43% (IC50=95.09µgmL-1). The results affirm that biosynthesized ZnO-NPs can be used as an alternative to present-day chemical compounds.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Óxido de Zinc / Apocynaceae / Nanopartículas / Antibacterianos / Antioxidantes Idioma: En Revista: Spectrochim Acta A Mol Biomol Spectrosc Asunto de la revista: BIOLOGIA MOLECULAR Año: 2017 Tipo del documento: Article País de afiliación: India Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Óxido de Zinc / Apocynaceae / Nanopartículas / Antibacterianos / Antioxidantes Idioma: En Revista: Spectrochim Acta A Mol Biomol Spectrosc Asunto de la revista: BIOLOGIA MOLECULAR Año: 2017 Tipo del documento: Article País de afiliación: India Pais de publicación: Reino Unido