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Photos from the same conferences of 2010
In Collaboration with the
WSEAS
PROGRAM
COMMITTEE:
(under confirmation)
H. Mandery, Belgium
L. M?dler, Denmark
P. A. Tanguy, France
M. V. Landau, Israel
J. ?t?p?nek, Czech Republic
M. Wichert, Denmark
J. P?idal, Czech Republic
W. B. Krantz, USA
Jinghai Li, China
J. Ba?dyga, Poland
J. P. Meyer, South Africa
R. Costa, Portugal
D. G. Wood, Australia
Y. Matsumura, Japan
A. Cornell, Sweden
G. H. Kelsall, UK
K. Sundmacher, Denmark
M. Gehrig, Denmark
P. Mougin, France
J. I. Siepmann, USA
M. Ei?, Canada
J. W. Thybaut, Belgium
K. Jones, USA
C. Kennes, Spain
E. N. Lightfoot, USA
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Plenary Lecture
Droplet-based Micro Continuous-Flow Synthesis and
Combinatorial Optimization of Composed Nanoparticles
Professor Michael Kohler
Technical University Ilmenau
Institute of Micro- and Nanotechnologies
Institute for Physics
Ilmenau, Germany
E-mail:
michael.koehler@tu-ilmenau.de
Abstract:
A droplet-based synthesis concept offers several unique
advantages for nanoparticle synthesis in comparison with the
synthesis in homogeneous fluids, as constant residence times,
suppression of undesired interactions between reactants,
particles and the wall, support of efficient mixing and heat
transfer by segment-internal convection. The possibility of
precise control of changes of process conditions is of
particular importance for multi step processes as nucleation,
particle growth, particle aggregation and formation of shells.
So, for example, different size, shape and optical properties
of plasmonic Au/Ag particles can be addressed by tuning the
conditions of microfluidic synthesis.
In addition, the micro segmented flow allows an efficient
screening of large sets of reaction conditions by the
definition of individual parameter sets in single nanoliter
fluid segments. Two- three-, four- and five-dimensional
concentration spaces are addressed by the application of
computer-controlled syringe pumps for combinatorial
experiments with several thousands single reaction volumes.
The individual micro fluid segments with special reaction
mixtures can be distinguished by their number in the segment
sequence. The complete sets of synthesized colloidal solutions
of nanoparticles were characterized by micro flow-through
photometry and spectrophotometry. Selected products were
further investigated by SEM, TEM, AFM and centrifugal
sedimentation spectrometry. In result, homogeneous core/shell
nanoparticles, double and triple shell nanoparticles as well
as single crystal nanoparticles are synthesized under micro
fluidic conditions.
Brief Biography of the Speaker:
J. Michael Kohler (born 1956) studied chemistry at the
universities of Halle/S. and Jena. After dissertation on
electrochemical effects in microfabrication (1986), he lead
projects on submicron photolithography at the Institute of
Physical Technology in Jena. During a research stay 1991 in
Dortmund (MPG) he dealt with chemical waves in gels. He get
the habilitation for general and physical chemistry of the
university of Jena in 1992. In the same year, he become the
head of the microfabrication department, in 1994 the head of
the microsystem department of the Institute of Physical High
Technology in Jena. Since 2001, he is a full professor for
Physical Chemistry and Micro Reaction Technology at the
Technical University of Ilmenau. His research activities are
focussed on the connection between chip reactors, cell
screening in microfluidic systems, biomolecular technologies,
nanomaterials and nanotechnology.
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European Conference of 
