We are proud to report for the first time of
biosynthesis of gold nanoparticles using marine sponge
Acanthella elongata
.


The growing trend of exploring bacteria, fungi, actinomycetes and plant materials for the biosynthesis of nanoparticles is considered as eco friendly and a green
technological approach. In this backdrop the present study reports the
synthesis of gold (Au) nanoparticles from gold precursor using the extract
derived from the marine sponge, Acanthella
elongata
(Dendy, 1905) belonging to the primitive phylum Porifera.
Water-soluble organics present in the marine sponge extract were mainly
responsible for the reduction of gold ions to nano-sized Au particles. UV
visible spectrum of the aqueous medium containing gold nanoparticles showed a
peak around 526 nm. Transmission electron microscopy (TEM) micrograph analysis
of the gold nanoparticles indicated that they were poly-dispersed and spherical
in shapes. Through Fourier transform infrared spectroscopy (FT-IR) analysis,
the reducing agent in the marine sponge extract was identified which is
attributed for the biosynthesis of gold colloids. The XRD analysis confirmed
the Bragg’s law and confirmed the crystalline nature of the gold nanoparticles.




For further information, see the link below:
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TFS-...

Views: 46

Tags: Gold, marine, nanoparticle, sponges

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Comment by Hábel Ervin on September 16, 2010 at 4:29pm
Wow! I think its amazing!

Full member
Comment by D. Geethalakshmi on September 16, 2010 at 10:16am
very good, a new information to me.

Full member
Comment by Tushar Chaudhari on September 10, 2010 at 9:47am
well and congrates
respected sir i am also doing work on silver and gold nps by microwave and sonochemical techniche
and interested for biosynthesis will yu help me

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Welcome! Nanopaprika was cooked up by Hungarian chemistry PhD student in 2007. The main idea was to create something more personal than the other nano networks already on the Internet. Community is open to everyone from post-doctorial researchers and professors to students everywhere.

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Publications by A. Paszternák:

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pH and CO2 Sensing by Curcumin-Coloured Cellophane Test Strip

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Directed Deposition of Nickel Nanoparticles Using Self-Assembled Organic Template,

Organometallic deposition of ultrasmooth nanoscale Ni film,

Zigzag-shaped nickel nanowires via organometallic template-free route

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Atomic Force Microscopy Studies of Alkyl-Phosphonate SAMs on Mica

Amorphous iron formation due to low energy heavy ion implantation in evaporated 57Fe thin films

Surface modification of passive iron by alkylphosphonic acid layers

Formation and structure of alkylphosphonic acid layers on passive iron

Structure of the nonionic surfactant triethoxy monooctylether C8E3 adsorbed at the free water surface, as seen from surface tension measurements and Monte Carlo simulations