Limits...
Biosynthesis of Gold Nanoparticles Using Fusarium oxysporum f. sp. cubense JT1, a Plant Pathogenic Fungus.

Thakker JN, Dalwadi P, Dhandhukia PC - ISRN Biotechnol (2012)

Bottom Line: Recently, reports are published on the extracellular as well as intracellular biosynthesis of gold nanoparticles using microorganisms.Incubation of FocJT1 mycelium with auric chloride solution produces gold nanoparticles in 60 min.Gold nanoparticles were characterized by UV-Vis spectroscopy, FTIR, and particle size analysis.

View Article: PubMed Central - PubMed

Affiliation: Department of Biotechnology, P. D. Patel Institute of Applied Science, Charotar University of Science & Technology, Education Campus Changa, Changa 388421, India.

ABSTRACT
The development of reliable processes for the synthesis of gold nanoparticles is an important aspect of current nanotechnology research. Recently, reports are published on the extracellular as well as intracellular biosynthesis of gold nanoparticles using microorganisms. However, these methods of synthesis are rather slow. In present study, rapid and extracellular synthesis of gold nanoparticles using a plant pathogenic fungus F. oxysporum f. sp. cubense JT1 (FocJT1) is reported. Incubation of FocJT1 mycelium with auric chloride solution produces gold nanoparticles in 60 min. Gold nanoparticles were characterized by UV-Vis spectroscopy, FTIR, and particle size analysis. The particles synthesized were of 22 nm sized, capped by proteins, and posed antimicrobial activity against Pseudomonas sp.

No MeSH data available.


Related in: MedlinePlus

Particle size distribution of the biosynthesized gold nanoparticles.
© Copyright Policy - open-access
Related In: Results  -  Collection


getmorefigures.php?uid=PMC4403611&req=5

fig4: Particle size distribution of the biosynthesized gold nanoparticles.

Mentions: Biosynthesized gold nanoparticles were found to be of 22 nm size using particle size analyzer (Figure 4). Extracellular reduction of the metal ions by Foc resulted in the rapid formation of the highly stable gold nanoparticles of 22 nm dimensions. The nanoparticles were not in direct contact within the aggregates, indicating stabilization of the nanoparticles by capping agents. The solution of gold nanoparticles synthesized by the reaction of Au3+ ions with FocJT1 was exceptionally stable.


Biosynthesis of Gold Nanoparticles Using Fusarium oxysporum f. sp. cubense JT1, a Plant Pathogenic Fungus.

Thakker JN, Dalwadi P, Dhandhukia PC - ISRN Biotechnol (2012)

Particle size distribution of the biosynthesized gold nanoparticles.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4403611&req=5

fig4: Particle size distribution of the biosynthesized gold nanoparticles.
Mentions: Biosynthesized gold nanoparticles were found to be of 22 nm size using particle size analyzer (Figure 4). Extracellular reduction of the metal ions by Foc resulted in the rapid formation of the highly stable gold nanoparticles of 22 nm dimensions. The nanoparticles were not in direct contact within the aggregates, indicating stabilization of the nanoparticles by capping agents. The solution of gold nanoparticles synthesized by the reaction of Au3+ ions with FocJT1 was exceptionally stable.

Bottom Line: Recently, reports are published on the extracellular as well as intracellular biosynthesis of gold nanoparticles using microorganisms.Incubation of FocJT1 mycelium with auric chloride solution produces gold nanoparticles in 60 min.Gold nanoparticles were characterized by UV-Vis spectroscopy, FTIR, and particle size analysis.

View Article: PubMed Central - PubMed

Affiliation: Department of Biotechnology, P. D. Patel Institute of Applied Science, Charotar University of Science & Technology, Education Campus Changa, Changa 388421, India.

ABSTRACT
The development of reliable processes for the synthesis of gold nanoparticles is an important aspect of current nanotechnology research. Recently, reports are published on the extracellular as well as intracellular biosynthesis of gold nanoparticles using microorganisms. However, these methods of synthesis are rather slow. In present study, rapid and extracellular synthesis of gold nanoparticles using a plant pathogenic fungus F. oxysporum f. sp. cubense JT1 (FocJT1) is reported. Incubation of FocJT1 mycelium with auric chloride solution produces gold nanoparticles in 60 min. Gold nanoparticles were characterized by UV-Vis spectroscopy, FTIR, and particle size analysis. The particles synthesized were of 22 nm sized, capped by proteins, and posed antimicrobial activity against Pseudomonas sp.

No MeSH data available.


Related in: MedlinePlus