Makromolekyl- og kolloidvitenskapelig
høstmøte 2009
Lectures - Abstracts
The lectures are sorted alphabetically
Conjugated
polymers – from a Nobel Prize winning mistake to commercial
products
Mats
Andersson
Chalmers
Tekniska
högskola, Göteborg
Conjugated
polymers, i.e. polymers with alternating single and double bonds along
the
backbone, can be used as the active material in different electronic
devices.
After oxidation they are electrically conducting and can be used as
antistatic
coatings or electrode material. They are semi conducting in their
neutral form
and are as such used in, for example, polymer light-emitting diodes,
field-effect transistors and solar cells. An important driving force
behind the
research is the potentially very low manufacturing cost which at the
end would
make the techniques available to more users. Commercial products made
from
conjugated polymers will be presented as well as an overview of our
research.
Monosized
Magnetic Beads in different Applications
Ann-Kristin
Honerud
Invitrogen Dynal AS, P. O. Box
228, N-2001 Lillestrøm, Norway
Dynal revolutionized the separation of biological materials in the
1980s by the launch of magnetic beads. Today Dynabeads® are
used in countless scientific applications and cited in thousands of
published articles.
Monosized polymer beads, made by the Ugelstad two-step swelling
process, are made superparamagnetic by the introduction of iron oxides.
The main use is for capturing target substances in blood samples, e.g.
diagnostic tests for HIV virus. The second important area is separation
and purification of pure cell populations and the use of these cells
for expansion and therapy, e.g. cancer and HIV clinical cell therapy.
The third area is within cellular and biomolecule research. Dynal
provide solutions for isolating and handling whole cells, proteins,
peptides, nucleic acids and other molecules in applications related to
the research market.
Driven by the growing needs of today’s biology, Dynal is
continuously developing new beads to fulfil the demands of new
applications.
This lecture will show some applications of monosized beads.
Thermoresponsive
amphiphilic polymers on gold nanoparticles
Wilhelm
Glomm
Ugelstad Laboratoriet,
Institutt for Kjemisk Prosessteknologi,
NTNU,
Trondheim.
Nanoparticles made from noble metals such as gold and silver have
distinctive optical properties in the visible due to a collective
excitation of the conduction electrons known as a localized surface
plasmon resonance (LSPR) when irradiated by incident light. Depending
on the size, shape, extent of aggregation and the dielectric function
on the particle surface, the optical and electronic properties of the
nanoparticles can be tuned considerably. In the case of gold
nanoparticles, the absorption maximum wavelength of the LSPR, λ
LSPR,
in UV-vis spectra can be shifted by hundreds of nanometers and particle
charging energies can be altered by hundreds of millivolts by adjusting
particle size, shape or surface properties.
In this presentation, the possibility of using the optical properties
of plasmonic nanoparticles to detect stimuli-induced changes in
adsorbed macromolecules and concomitantly the colloidal constructs is
described for two types of adsorbed species – amphiphilic
block copolymers based on poly(N-isopropylacrylamide) (PNIPAAM) and
Immunoglobulin G (IgG).
Engineering of efficient biocatalysts by the sol-gel
method
Andrzej
Jarzebski
Dept of
Chemical Engineering, Silesian University of Technology, Gliwice,
Polen
Abstract
missing
Hybrid materials based on hyperbranched polymers and functionalised
cellulose
Eva
Malmström Jonsson
Avdelningen
för Fiber- och Polymerteknologi, Kungliga Tekniska
Högskolan, KTH, i Stockholm
Abstract missing