Biogenic synthesis of stable silver nanoparticles via Asparagus racemosus root extract and their antibacterial efficacy towards human and fish bacterial pathogens

2019 ◽  
Vol 6 (10) ◽  
pp. 104008 ◽  
Author(s):  
P P N Vijay Kumar ◽  
R L Kalyani ◽  
Sarath Chandra Veerla ◽  
Pratap Kollu ◽  
U Shameem ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Bacterial Pathogens ◽  
Root Extract ◽  
Asparagus Racemosus ◽  
Antibacterial Efficacy ◽  
Biogenic Synthesis

scholarly journals Biogenic Synthesis of Silver Nanoparticles Using Scenedesmus abundans and Evaluation of Their Antibacterial Activity

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Nafe Aziz ◽  
Tasneem Fatma ◽  
Ajit Varma ◽  
Ram Prasad
Keyword(s):  
Silver Nanoparticles ◽  
Pathogenic Bacteria ◽  
Visible Spectrum ◽  
Potential Candidate ◽  
Gradual Change ◽  
Antibacterial Efficacy ◽  
Silver Particles ◽  
Biogenic Synthesis ◽  
E Coli ◽  
Uv Visible

Silver nanoparticle (AgNP) was synthesized using the cell free extract of Scenedesmus abundans with AgNO3. The synthesized silver nanoparticles were characterized by UV-visible spectroscopy, dynamic light scattering (DLS), scanning electron microscopy (SEM), and Photoluminescence. Bioreduction of Ag+ ions showed a gradual change in the colour of the extract and nanoparticles were synthesized having the range of 420–440 nm under UV-visible spectrum. The antibacterial efficacy was assessed against pathogenic bacteria E. coli, Klebsiella pneumoniae, and Aeromonas hydrophila. The present study revealed that the AgNPs prepared from Scenedesmus abundans show antibacterial efficacy against the test pathogens. The bioaccumulation of silver particles makes the organism potential candidate for ecofriendly silver biorecovery system and S. abundans can be used as a source of silver nanoparticles.

scholarly journals Biosynthesized Silver Nanoparticles Using an Aqueous Root Extract of Iris germanica as a Reducing Agent and Its Antibacterial Efficacy

2020 ◽  
pp. 1-10
Author(s):  
Vaghela Hiral ◽  
Shah Rahul ◽  
Vajapara Shailesh ◽  
Pathan Amanullakhan
Keyword(s):  
Silver Nanoparticles ◽  
Research Area ◽  
Reduction Reaction ◽  
Reducing Agent ◽  
Biomedical Science ◽  
Root Extract ◽  
Antibacterial Efficacy ◽  
Bacterial Strains ◽  
Iris Germanica ◽  
Aqueous Root Extract

Biosynthesized silver nanoparticles (AgNPs) are environment friendly, cost-effective, bio-compatible and expanding research area due to their potential applications in medical domain. The present study focuses on biologically synthesized of AgNPs using aqueous root extract of  Iris germanica as reducing agent as well as capping agent and examined their potential antibacterial efficacy. In reduction reaction it was observed that silver (Ag+1) ions associate in root extract and reduced in solution (Ag0) leads to formation of stable formation of spherical AgNPs. Biosynthesized AgNPs showed an effective and rapid antibacterial activity against both bacterial strain (gram+ve and gram-ve). Results exhibited that AgNPs were extremely toxic towards Bacillus subtilis and Escherichia coli pathogenic bacterial strains and can be utilized for the applications in biomedical science.

Evaluation of antibacterial efficacy of phyto fabricated silver nanoparticles using Mukia scabrella (Musumusukkai) against drug resistance nosocomial gram negative bacterial pathogens

2013 ◽  
Vol 104 ◽  
pp. 282-288 ◽  
Author(s):  
Kandasamy Prabakar ◽  
Periyasamy Sivalingam ◽  
Siyed Ibrahim Mohamed Rabeek ◽  
Manickam Muthuselvam ◽  
Naresh Devarajan ◽  
...  
Keyword(s):  
Drug Resistance ◽  
Silver Nanoparticles ◽  
Bacterial Pathogens ◽  
Antibacterial Efficacy ◽  
Gram Negative

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