Navigation Links
Silver nanoparticle synthesis using strawberry tree leaf
Date:7/11/2012

A team of researchers from Greece and Spain have managed to synthesize silver nanoparticles, which are of great interest thanks to their application in biotechnology, by using strawberry tree leaf extract. The new technology is ecological, simple, cheap and very fast.

Strawberry tree leaf (Arbutus unedo) and silver nitrate (AgNO3). With just these two ingredients scientists can now produce silver nanoparticles, a material that is used in advanced technologies from compounds for distributing medicines through to electronic devices, catalysts, contaminant solvents.

The technique has been developed by scientists at the Aristotle University of Thessaloniki (Greece) and Madrid's Carlos III University (UC3M) and consists of adding an extract of the leaf to a silver nitrate aqueous solution. Silver nanoparticles form immediately after stirring the mixture for some minutes.

"There are other methods for producing them but this process is the most simple, low cost and easy to implement given that a non-toxic plant is used at a temperature of between 25C and 80C", outlines Sophia Tsipas, UC3M researcher and coauthor of the study, which is published on the Materials Letters journal.

Tsipas adds that "the innovation of this method lies in the fact that it allows us to control the parameters for obtaining nanoparticles of a known size (from 5 to 40 nm) and geometry (spheres, pyramids, cubes). The nanoparticles produced remained stable over long periods of time of up to 6 months."

Strawberry tree leaves facilitate such stability as they form an organic layer of various nanometres around the silver particles. What is more, the extract acts as a reducing agent and stabilizer for the entire product.

The nanoparticles obtained have been characterised and verified with various techniques (transmission electron microscopy, ultraviolet spectroscopy and FTIR). As well as optimising the process, the team is currently studying how to produce similar nanometric sized particles with other metals like gold and copper.


'/>"/>
Contact: SINC
info@agenciasinc.es
34-914-251-820
FECYT - Spanish Foundation for Science and Technology
Source:Eurekalert  

Related biology news :

1. Are silver nanoparticles harmful?
2. Paints and coatings containing bactericidal agent nanoparticles combat marine fouling
3. Palladium-gold nanoparticles clean TCE a billion times faster than iron filings
4. From pomegranate peel to nanoparticles
5. NIST/UMass study finds evidence nanoparticles may increase plant DNA damage
6. Hybrid copper-gold nanoparticles convert CO2
7. Rensselaer scientists unlock some key secrets of photosynthesis
8. Progress of arachidonic acid biosynthesis in microorganisms
9. Bangladeshi women prefer pollution-causing cookstoves
10. Faster, cheaper gas and liquid separation using custom designed and built mesoscopic structures
11. Using graphene, scientists develop a less toxic way to rust-proof steel
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Silver nanoparticle synthesis using strawberry tree leaf
(Date:4/19/2017)... 2017 The global military biometrics ... marked by the presence of several large global players. ... five major players - 3M Cogent, NEC Corporation, M2SYS ... nearly 61% of the global military biometric market in ... global military biometrics market boast global presence, which has ...
(Date:4/11/2017)... Fla. , April 11, 2017 ... and secure authentication solutions, today announced that it ... Intelligence Advanced Research Projects Activity (IARPA) to develop ... Thor program. "Innovation has been a ... IARPA,s Thor program will allow us to innovate ...
(Date:4/5/2017)... Allen Institute for Cell Science today announces the launch ... dynamic digital window into the human cell. The website ... deep learning to create predictive models of cell organization, ... suite of powerful tools. The Allen Cell Explorer will ... resources created and shared by the Allen Institute for ...
Breaking Biology News(10 mins):
(Date:8/10/2017)... ... August 10, 2017 , ... CNA Finance Chief ... initiated coverage on Next Group Holdings, Inc. and see's significant opportunity in the ... those that cannot engage in traditional banking services. According to industry estimates, approximately ...
(Date:8/10/2017)... BioLife Solutions , Inc. (NASDAQ: BLFS ), ... grade cell and tissue hypothermic storage and ... today reported operational highlights and financial results for the ... Revenue from biopreservation media product sales reached a ... of 2017, an increase of 29% over the same ...
(Date:8/8/2017)... ... August 08, 2017 , ... ... Trade Show Virtual Event, will discuss Phase Analysis Light Scattering (PALS) and ... method can be used to assess vaccine product quality and consistency regarding particle ...
(Date:8/8/2017)... ... ... Myoderm , a global clinical trial drug supply specialist, today announced the ... heels of the opening of Myoderm’s European warehouse facility earlier this year. As the ... establishing operations to support its customers around the world. , Andy Shepard joins ...
Breaking Biology Technology: