laser generated metal nanoparticle colloids

laser generated metal nanoparticle colloids - from left to right:
gold, silvber, copper, titanium

Views: 295


You need to be a member of The International NanoScience Community to add comments!

Join The International NanoScience Community

Full member
Comment by MAJID DARROUDI on June 22, 2010 at 8:45am
Dear Stephan,

Thank you for your nice answer


Full member
Comment by Dr. Stephan Barcikowski on June 22, 2010 at 1:41am
Dear Majid,
as you correctly mentioned, all plasmon resonant materials show size-dependent colour, especially with sizes above 20 nm; clearly visible for sizes above 40 nm. In the case of Cu and Ti, it is more complicated, since oxide shell contributes to the colour (e.g., Ti in Acetone is gray, whereas blue in water).
Regards, Stephan

Full member
Comment by MAJID DARROUDI on June 19, 2010 at 12:04am
Dear Stephan,

This difference between colours of Au, Ag, Cu, and Ti solutions is only depend to their size or nature of metals?
because some times one metal nanoparticles e.g. Au show different colour at different size.

Thank you,

Latest Activity

Welcome - about us

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.

There is only one important assumption: you have to be interested in nano!

Nanopaprika is always looking for new partners, if you have any idea, contact me at

Dr. András Paszternák, founder of Nanopaprika

Publications by A. Paszternák:

Smartphone-Based Extension of the Curcumin/Cellophane pH Sensing Method

Pd/Ni Synergestic Activity for Hydrogen Oxidation Reaction in Alkaline Conditions

The potential use of cellophane test strips for the quick determination of food colours

pH and CO2 Sensing by Curcumin-Coloured Cellophane Test Strip

Polymeric Honeycombs Decorated by Nickel Nanoparticles

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

Surface analytical characterization of passive iron surface modified by alkyl-phosphonic acid layers

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

Next partner events of TINC

We are Media Partner of: