Open AccessDOI
Green Synthesis of Silver Nanoparticles using Catharanthus roseus: Its Antioxidant and Antibacterial Properties
Anand Kumar Keshari,Atul Srivastava,Sandip Chowdhury,Ragini Srivastava +3 more
- Vol. 6, Iss: 1, pp 17-27
TLDR
In this article, the green synthesis of silver nanoparticles using C. roseus extract and its antioxidant, free radicals scavenging and antibacterial activities was shown. But the results of the analysis were limited to the zone of inhibition and MIC value of CrAgNPs.Abstract:
ObjectiveThe present work shows the green synthesis of silver nanoparticles using C. roseus extract and its antioxidant, free radicals scavenging and antibacterial activities. Methods The C. roseus extract synthesized silver nanoparticles (CrAgNPs) were characterized by X-ray diffractometry, Scanning Electron Microscopy, Transmission Electron Microscopy and Fourier Transform Infra Red spectroscopy. The antioxidant, hydrogen peroxide scavenging, hydroxyl radicals scavenging, superoxide scavenging and reducing power activity of CrAgNPs were determined by DPPH, hydrogen peroxide scavenging, hydroxyl radicals scavenging, superoxide scavenging and reducing power assay methods. The antibacterial activity of CrAgNPs was analyzed by Agar dilution, Minimum Inhibitory Concentration methods. ResultsThe CrAgNPs were synthesized by C. roseus extract and silvernitrate. The synthesis of silver nanoparticles was confirmed by color changes and UV-visible spectrophotometer analysis. The CrAgNPs were crystalline, variable size, elemental and spherical shape. The C. roseus extract and CrAgNPs have antioxidant, hydrogen peroxide scavenging, hydroxyl radicals scavenging, superoxide scavenging and reducing power activity. The zone of inhibition and MIC value of CrAgNPs confirmed the antibacterial activity. The CrAgNPs have greater antibacterial activity than C. roseus extract against the S. Typhi and P. vulgaris. The MIC results of CrAgNPs confirmed that CrAgNPs was highly effective against the S. Typhi and P. vulgaris bacteria. Conclusion Phenols and flavonoids of C. roseus extract reduced the silvernitrate into silver nanoparticles. The CrAgNPs were crystalline, spherical shape, variable particles size and elemental. The C. roseus extract and CrAgNPs have antioxidant, hydrogen peroxide scavenging, hydroxyl radicals scavenging, superoxide scavenging, reducing power activity and antibacterial activity.read more
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Peer Review
Biogenic Synthesis of Silver Nanoparticles, Characterization and Their Applications—A Review
TL;DR: In this article , a review outlines the wide plant diversity that may be used to prepare a rapid and single-step procedure with a green path over the traditional ones, as well as their antifungal activity.
Journal ArticleDOI
Potency of phytosynthesized silver nanoparticles from Lathraea squamaria as anticandidal agent and wheat seeds germination enhancer
Book ChapterDOI
Syzygium cumini Mediated Green Synthesis of Silver Nanoparticles for Reduction of 4-Nitrophenol and Assessment of its Antibacterial Activity
TL;DR: In this paper, the synthesis of silver nanoparticles from the plant extract of Syzygium cumini and evaluation of its antibacterial and chemocatalytic potential was carried out by using aqueous silver nitrate.
Journal ArticleDOI
Environmentally benign silver bio-nanomaterials as potent antioxidant, antibacterial, and antidiabetic agents: Green synthesis using Salacia oblonga root extract
Guru Kumar Dugganaboyana,Chethan Kumar Mukunda,Anisha S. Jain,Raghavendra Mandya Kantharaju,Rani R. Nithya,Divya Ninganna,Rathi Muthaiyan Ahalliya,Ali A. Shati,Mohammad Y. Alfaifi,Serag Eldin I. Elbehairi,E. O. Silina,V. Stupin,Gopalakrishnan Velliyur Kanniappan,Raghu Ram Achar,Chandan Shivamallu,Shiva Prasad Kollur +15 more
TL;DR: In this paper , Salacia oblonga root extract (SOR-AgNPs) was used as a capping agent for green synthesis of silver nanoparticles, which showed significant antioxidant properties like DPPH (80.64 μg/mL), reducing power capacity (81.09 ± SEM), nitric oxide (96.58 μg/L), and hydroxyl (58.38 μg/M) radical scavenging activities.
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