scholarly journals Adansonia digitata leaf extract mediated synthesis of silver nanoparticles; characterization and antimicrobial studies

2015 ◽  
pp. 082-089 ◽  
Author(s):  
Chennareddy Marutikesavakumar ◽  
Pulicherla Yugandhar ◽  
Nataru Savithramma
Keyword(s):  
Silver Nanoparticles ◽  
Leaf Extract ◽  
Adansonia Digitata ◽  
Antimicrobial Studies ◽  
Nanoparticles Characterization

scholarly journals Biogenic silver nanoparticles using Rhinacanthus nasutus leaf extract: synthesis, spectral analysis, and antimicrobial studies

2013 ◽  
pp. 3355 ◽  
Author(s):  
Visweswara Rao Pasupuleti ◽  
TNVKV Prasad ◽  
Rayees Ahmad Sheikh ◽  
Satheesh Krishna Balam ◽  
Ganapathi Narasimhulu ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Spectral Analysis ◽  
Leaf Extract ◽  
Biogenic Silver Nanoparticles ◽  
Antimicrobial Studies ◽  
Rhinacanthus Nasutus

scholarly journals Biogenic Silver Nanoparticles Using Rhinacanthus Nasutus Leaf Extract: Synthesis, Spectral Analysis, and Antimicrobial Studies [Retraction]

2021 ◽  
Vol Volume 16 ◽  
pp. 8305-8306
Author(s):  
Visweswara Rao Pasupuleti ◽  
TNVKV Prasad ◽  
Rayees Ahmad Sheikh ◽  
Satheesh Krishna Balam ◽  
Ganapathi Narasimhulu ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Spectral Analysis ◽  
Leaf Extract ◽  
Biogenic Silver Nanoparticles ◽  
Antimicrobial Studies ◽  
Rhinacanthus Nasutus

Green Synthesis of Silver Nanoparticles by Allamanda cathartica L. Leaf Extract and Evaluation for Antimicrobial Activity

2013 ◽  
Vol 6 (4) ◽  
pp. 2260-2268
Author(s):  
M. Linga Rao ◽  
Bhumi G ◽  
Savithramma N
Keyword(s):  
Antimicrobial Activity ◽  
Silver Nanoparticles ◽  
Leaf Extract ◽  
Fusarium Species ◽  
Inhibition Zone ◽  
Fungal Species ◽  
Green Technology ◽  
Metallic Silver ◽  
Synthesis Of Nanoparticles ◽  
Aqueous Leaf Extract

Silver nanoparticles (SNPs) exhibit tremendous applications in medicine as antimicrobial agent.  The use of different parts of plants for the synthesis of nanoparticles is considered as a green technology as it does not involve any harmful chemicals.  In the present study, we report a rapid biosynthesis of silver nanoparticles from aqueous leaf extract of medicinal plant Allamanda cathartica.  The active phytochemicals present in the plant were responsible for the quick reduction of silver ion to metallic silver nanoparticles. The reduced silver nanoparticles were characterized by using UV-Vis spectrophotometry, Scanning Electron Microscope (SEM), Energy Dispersive Analysis of X-ray (EDAX) and Atomic Force Microscopy (AFM).  The spherical shaped silver nanoparticles were observed and it was found to 19-40 nm range of size.  These phytosynthesized SNPs were tested for their antimicrobial activity and it analyzed by measuring the inhibitory zone. A. cathartica aqueous leaf extract of SNPs showed highest toxicity to Pseudomonas followed by Klebsiella, Bacillus and E. coli and lowest toxicity towards Proteus. In fungal species, highest inhibition zone was noted against Rhizopus followed by Curvularia, Aspergillus flavus and Aspergillus niger and minimum inhibition zone was observed against Fusarium species.  These results suggest a promising potential of Indian plant-based green chemistry for production of SNPs for biomedical and nanotechnology applications.

Efficacy of Silver Nanoparticles Synthesized from Hymenocallis species (Spider Lilly) Leaf Extract as Antimicrobial Agents

2019 ◽  
Vol 12 (5) ◽  
pp. 4644-4647
Author(s):  
K.K. Gupta ◽  
Neha Kumari ◽  
Neha Sinha ◽  
Akruti Gupta
Keyword(s):  
Silver Nanoparticles ◽  
Leaf Extract ◽  
Antimicrobial Agents ◽  
Color Change ◽  
Bacterial Species ◽  
Antimicrobial Property ◽  
Biogenic Synthesis ◽  
E Coli ◽  
Light Yellow ◽  
Antibiotic Property

Biogenic synthesis of silver nanoparticles synthesized from Hymenocallis species (Spider Lilly) leaf extract was subjected for investigation of its antimicrobial property against four bacterial species (E. coli, Salmonella sp., Streptococcus sp. & Staphylococcus sp.). The results revealed that synthesized nanoparticles solution very much justify the color change property from initial light yellow to final reddish brown during the synthesis producing a characteristics absorption peak in the range of 434-466 nm. As antimicrobial agents, their efficacy was evaluated by analysis of variance in between the species and among the different concentration of AgNPs solution, which clearly showed that there was significant variation in the antibiotic property between the four different concentrations of AgNPs solution and also among four different species of bacteria taken under studies. However, silver nanoparticles solution of 1: 9 and 1:4 were proved comparatively more efficient as antimicrobial agents against four species of bacteria.

Sign in / Sign up

Export Citation Format

Share Document