Banner St Andrews
Landscape: St A Town and Sea
SUPA
University of Edinburgh
Sapienza Universita di Roma
logo_Amity_University.gif
logo_University_of_Tokyo.gif
Logo-St_Andrews-Crest.jpg
PAscal (2009)
Dhanapriya Dhanapriya (2010)
Ewha Woman University (Seoul-Korea)
PbSe nanoParticles IFFT Pattern
EaStCHEM
Heriot Watt University
Queen's University Belfast
EaStCHEM
SUPA
EPSRC
Scottish Funding Council
CEA
PAscal (2007)
IMSaT
Organic Semiconductor Centre
HnC
St Andrews University
Location St A - UK map
View of St A and Towards the Sea
View of St A from West Sand
HnC Logo
Sea from St Andrews View of a Beach around St A
View of Castle Sand at St A
View of St A under the Sun
View of Market Street at St A
View of St A Cathedral
View of the Harbour of St A
Royal Society
Colloidal InN nanoTubes
PbSe nanoParticles Absorption Spectra
ZnO nanoRods
ZnO nanoRods
ZnO nanoRods
Colloidal CdSe nanoParticles Colloidal CdSe nanoParticles
Colloidal PbSe nanoParticles Colloidal PbSe nanoParticles
Colloidal PbSe nanoParticles Colloidal PbSe nanoParticles
PbSe nanoParticles
Silver nanoParticles
Silver nanoParticles
Silver nanoFibres
Colloidal Silver nanoParticles
Colloidal Silver nanoParticles
Colloidal Silver nanoParticles
Colloidal Silver Cubes-Pyramids-Rods
Micelles & Surfactants
Micelles for Colloidal Syntheses
POSS-vbp Dendrimer
POSS-vbp Dendrimer
POSS-vbp Dendrimer
POSS-vbp-N Dendrimer POSS-vbp-N Dendrimer
POSS-vbp-N Dendrimer POSS-vbp-N Dendrimer
Dendron Dendron
Dendron Dendron
Vinyl Biphenyl based Dendron
Vinyl Biphenyl based Dendron
Vinyl Biphenyl based Dendron
Inorganic Dendrimer Core Inorganic Dendrimer Core
Inorganic Dendrimer Core Inorganic Dendrimer Core
Inorganic Dendrimer Core Inorganic Dendrimer Core
Inorganic Dendrimer Core Inorganic Dendrimer Core
Inorganic Dendrimer Core Inorganic Dendrimer Core
Inorganic Dendrimer Core Inorganic Dendrimer Core
Inorganic Dendrimer Core Inorganic Dendrimer Core
Organic-Inorganic Hybrid Dendrimer
Shu (2008)
University of St Andrews
Colloidal Silver Cubes-Pyramids
University of Glasgow
Photonic4Life
P4L
Colloidal CdSe nanoParticles

Amphiphlic Media for nPs Syntheses

We carried out a detailed investigation of low temperature solution synthesis targeting homogenous composition of iron platinum nanocolloids (nCs).

The high magnetic anisotropy of FePt (107 J/m3 ) makes FePt an ideal candidate for technological applications ranging from ultra high density recording media to bio-medical applications. In contrast to more usual thermal decomposition protocol, room temperature syntheses offer an attractive pathway that could dramatically simplify nCs fabrication. However, a major hurdle is the inhomogeneous composition of the products.

In collaboration with Glasgow University, we have investigated the role of amphiphilic molecules, precursor ions and reducing agents in nC synthesis. Parameters that prevent the formation of chemically homogeneous nCs were identified by ICP-OES, XRD, TEM, nanometric EDX, and SQUID magnetometry. These limiting parameters were then tuned to successfully increase the insertion of the iron in the Fex Pt1-x nCs. The limiting parameters and strategy we highlight here should be applicable to other alloys fabricated by co-reduction protocol.

 
Micelles

Shematic of a water pool stabilized by amphiphilic molecules

Work carried out by:

Shu Chen,a,b Donald MacLaren,c Richard Baker,b John Chapman,c David Cole-Hamilton,b Stephen Lee,a Pascal André a*

a School of Physics & Astronomy (SUPA), University of St Andrews, Fife, KY16 9SS
b School of Chemistry (EaStChem), University of St Andrews, Fife, KY16 9ST
c Department of Physics & Astronomy (SUPA), University of Glasgow, Glasgow G12 8QQ