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Colloquia of the SFB/TRR 102

Past Events


09.07.15 in Halle

@ Gustav-Mie auditorium of the Institute of Physics, Theodor-Lieser-Str.9, 5.00 pm

Prof. Dr. Kookheon Char

The National Creative Research Initiative Center for
Intelligent Hybrids School of Chemical & Biological Engineering, Seoul National University, Seoul, South Korea

"Natural and Synthetic Polymeric Systems under


Controlling the response of polymeric materials against surrounding environment holds promise to engineer novel nanostructured materials. Particularly, constraints imposed by nanometer-scale confinement lead to significant changes in the bulk equilibrium behavior of chained molecules, breaking the symmetry in the assembled structure....

Char_090715_KolloquiumSFB.pdf (196.5 KB)  vom 21.04.2015

11.06.2015 in Leipzig

@ auditorium of the Institute of Theoretical Physics Linnéstr. 5, 5.00 pm

Prof. Dr. Bernd Stühn


Experimentelle Physik kondensierter Materie, Physik weicher Materie, Technische Universität Darmstadt

"Multiscale dynamics in a complex liquid"


The three component system of water, oil and surfactant forms a  nanostructured liquid called a microemulsion. In a range of compositions  it consists of spherical droplets of one phase, covered by a surfactant  layer and embedded in the other phase. ...

Stuehn_110615_KolloquiumSFB_L.pdf (189.2 KB)  vom 21.04.2015

21.05.15 in Halle

@ Gustav-Mie auditorium of the Institute of Physics, Theodor-Lieser-Str.9, 4.00 pm

Prof. Dr. Christian Holm

Institute for Computational Physics
Universität Stuttgart

"Investigating Magnetic Soft Matter"


Ferrogels are hydrogels that additionally contain magnetic single-domain  particles and whose properties can be controlled by using external  magnetic fields. We will present recent results on the microstructure,  the magnetic behavior, and the mechanical and viscoelastic properties of  2D and 3D magnetic gels on the basis of 2 microscopic particle models.  In the first model the nano-magnets are part of the chain monomers,  whereas in the second model the magnetic particles are restricted to the  network nodes....

Holm_210515_KolloquiumSFB.pdf (187.5 KB)  vom 12.05.2015

07.05.2015 in Leipzig

@ auditorium of the Institute of Theoretical Physics Linnéstr. 5, 5.00 pm

Prof. Dr. Sanjay Kumar

Department of Physics, Banaras Hindu University,Varanasi 221 005, India

"DNA under force: New insights from simulations"


Separation of a double stranded DNA (dsDNA) is prerequisite for  the essential cellular processes, such as, replication and  transcription. It is now well known that DNA is stabilized by inter- and  intra- molecular interactions. Single Molecular Force Spectroscopy  (SMFS) techniques, e.g. optical tweezers, magnetic tweezers and atomic  force microscopy, have emerged as powerful tools to investigate these  interactions. These experiments have provided various insights and  understanding of biological processes at the molecular level....

Kumar_070515_KolloquiumSFB_L.pdf (202 KB)  vom 30.04.2015

30.04.2015 in Leipzig

@ auditorium of the Institute of Theoretical Physics Linnéstr. 5, 5.00 pm

Prof. Dr. Michael Vogel

Institut für Festkörperphysik, Technische Universität Darmstadt

"Experimental and Computational Studies on the Dynamics of Confined Water"


Water in confinements of nanoscopic size and in mixtures with various molecules, ranging from alcohols to proteins, is of great relevance in many fields, from biology to geology. For these systems, the water properties can be strongly affected by finite-size effects and specific interface interactions. To gain fundamental insights, we combine nuclear magnetic resonance (NMR) and broadband dielectric spectroscopy (BDS) with molecular dynamics (MD) simulations...

Vogel_300415_KolloquiumSFB_L.pdf (191.9 KB)  vom 05.03.2015


Special Event
19.12.2014 in Halle

@ Hörsaal 1.23, Von-Seckendorff-Platz 1, 06120 Halle

Prof. Kazuyuki Akasaka, Humbold Fellow

Institute of Advanced Technology, Kinki University, Japan

" Pressure and the hidden dynamism of proteins "


Prof. Akasaka is one of the leading scientists of protein NMR spectroscopy in Japan. He is interested in the structure and conformational fluctuations of biopolymers. He pioneered high pressure NMR to study protein folding and protein dynamics. In his talk he will discuss spectroscopic applications under high pressure to explore the energy landscape of proteins including examples from the fields of amyloid and prion proteins, deep-sea biology and food science.

Akasaka_191214_KolloquiumSFB.pdf (178.7 KB)  vom 17.12.2014

18.12.2014 in Halle

@ Gustav-Mie auditorium of the Institute of Physics, Theodor-Lieser-Str.9

Prof. Guenther Reiter

Physikalisches Institut, Fakultät für Mathematik und Physik
Albert-Ludwigs-Universität Freiburg

"Correlating Polymer Crystals via SelfInduced Nucleation"


Crystallizable polymers often form multiple stacks of uniquely oriented lamellae, which have good registry despite being separated by amorphous fold surfaces. These correlations require multiple synchronized, yet unidentified, nucleation events. Here, we demonstrate that in thin films of isotactic polystyrene, the probability of generating correlated lamellae is controlled by the branched morphology of a single primary lamella...

Reiter_181214_KolloquiumSFB.pdf (397.6 KB)  vom 13.10.2014

11.12.2014 in Leipzig

@ auditorium of the Institute of Theoretical Physics Linnéstr. 5

Prof. Walter Richtering

Institut für Physikalische Chemie ,
RWTH Aachen University

"Are complex microgels special?"


Multi-sensitive, “smart” microgels display a variety of properties that distinguish them from rigid colloidal particles. The swelling of the soft particles can be controlled via the chemical composition as well as the morphology of the particle. Due to the chemical structure of the microgels, their size can respond to variations, e.g., of temperature, pH, pressure or solvent composition. The porosity of the microgels further allows for the uptake and release of guest species, which can be controlled by external stimuli...

Richtering_111214_KolloquiumSFB_L.pdf (163.7 KB)  vom 14.10.2014

06.11.2014 in Leipzig

@ auditorium of the Institute of Theoretical Physics Linnéstr. 5

Prof. Christine Papadakis

TU München

"Kinetics of collapse and aggregation in thermoresponsive micellar block copolymer solutions"

Thermoresponsive, polymeric hydrogels respond in a controlled and  reversible way with a volume change to a small change of temperature  across the cloud point. These switchable and nanostructured materials  are of great interest for controlled molecular ultrafiltration. A widely  used thermoresponsive polymer is poly(N-isopropylacrylamide) (PNIPAM) which exhibits a cloud point at 32 °C. We investigate self-assembled,  physically crosslinked thermoresponsive hydrogels formed by  amphiphilic, symmetric triblock copolymers having short, fully  deuterated polystyrene (P(S-d8)) end blocks and a large (PNIPAM) middle block.

Papadakis_061114_KolloquiumSFB_L.pdf (169.1 KB)  vom 26.05.2014

23.10.2014 in Halle

Prof. Dieter Willbold

Forschungszentrum Jülich GmbH, Institute of Complex Systems, ICS-6 Strukturbiochemie, 52425 Jülich

“Aβ-oligomer targeted therapy and diagnosis of Alzheimer's disease.”


Alzheimer’s disease (AD) is a progressive neurodegenerative disorder. Several lines of evidence suggest a central role of amyloid-β-peptide (Aβ) in the pathogenesis of AD. More than Aβ fibrils, small soluble and prion-like Aβ oligomers are suspected to be the major toxic species responsible for disease development and progression. Therefore, these oligomers should be our major target for therapy and used as the most direct biomarker for diagnosis and therapy monitoring...

Willbold_231014_KolloquiumSFB.pdf (200.8 KB)  vom 16.10.2014

10.07.2014 in Halle

@ Gustav-Mie auditorium of the Institute of Physics, Theodor-Lieser-Str.9

Prof. Dr. Tanja Schilling

Theory of Soft Condensed Matter, Universite du Luxembourg  

"Crystal Nucleation in Alkanes"

Although the crystallization process in alkanes has been studied  intensively for decades, molecular details of crystal nucleation events  have not been accessible until very recently. We present a  computer simulation study of crystallization from sheared as well as  quiescent undercooled melts of C20 and C150 and analyse the crystal  nucleation process...

Schilling_100714_KolloquiumSFB.pdf (71.9 KB)  vom 21.03.2014

05.06.2014 in Leipzig

@ auditorium of the Institute of Theoretical Physics Linnéstr. 5

Dr. Daniele Cangialosi

Centro de Física de Materiales (CSIC-UPV/EHU), Paseo Manuel de Lardizabal 5, 20018 San Sebastián, Spain

"Dynamics and thermodynamics of glasses in bulk and under confinement"


Glass-forming systems have been the  subject of intense research in the last decades. Within this context  the following topics have been recently debated: i) the glassy dynamics  in nanoscale confinement, with special attention to thin polymer films;  and ii) the fate dynamics and thermodynamics below the laboratory glass  transition temperature (Tg), namely  that obtained at cooling rates of several kelvin per minute. In this  seminar, first of all I critically discuss the recent advancements in  the understanding of glassy dynamics in confinement...

Cangialosi_050614_KolloquiumSFB_L.pdf (137.7 KB)  vom 05.05.2014

22.05.2014 in Leipzig

@ little auditorium, Linnéstr. 5

Prof. Dr. Ulrich S. Schubert

Laboratory of Organic and Macromolecular Chemistry (IOMC) and  Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena,  Jena

"Nanochemistry: Applications in surface functionalization, self-assembly and nanofabrication"


The availability of new materials, i.e., graphene, carbon  nanotubes or inorganic plasmonic nanoparticles, opened up appealing  possibilities to access novel material properties. While the resulting  properties offer tremendous potential for applications, in many cases  the handling and implementation of these materials into devices and  functional materials sometimes imposes challenges to allow for the  utilization of these materials. Frequently, chemical derivatization,  surface coatings as well as the availability of novel synthesis  strategies can help to solve these problems...

Schubert_220514_KolloquiumSFB_L.pdf (71.9 KB)  vom 05.05.2014

10.04.2014 in Halle

@ Gustav-Mie auditorium of the Institute of Physics, Theodor-Lieser-Str.9

Prof. Dr. Mischa Bonn

Molecular Spectroscopy Group,
Max Planck Institute for Polymer Research, Mainz

"Ultrafast Carrier Dynamics in Graphene and Graphene Nanostructures"

Graphene is an attractive candidate for many optoelectronic applications because of its vanishing bandgap and high carrier mobility. An essential process for such applications is the dissipation of the energy of photoexcited charge carriers in the material. Two competing energy relaxation mechanisms for optically excited carriers exist: They can (i) thermalize with intrinsic carriers near the Fermi level, heating them to higher energy states through the process of ‘hot carrier multiplication’; or , ...

Bonn_100414_KolloquiumSFB.pdf (125.4 KB)  vom 25.03.2014

30.01.2014 in Leipzig

@ auditorium of the Institute of Theoretical Physics Linnéstr. 5

Prof. Dr. Jörg Baschnagel

Institut Charles Sadron
23 rue du Loess - BP 84047,67034 Strasbourg Cedex 2, France

"Corrections to Chain Ideality in Polymer Melts: Bulk, Thin Films and Pores"


An important concept in polymer physics is the Flory ideality hypothesis. This hypothesis states that polymer chains in a melt have random-walk-like conformations. However, theoretical [14] and numerical results [3,5] suggest that this view is an oversimplification. There are noticeable deviations from chain ideality,...

Baschnagel_300114_KolloquiumSFB_L.pdf (139.3 KB)  vom 19.11.2013

16.01.2014 in Halle

@ Gustav-Mie auditorium of the Institute of Physics, Theodor-Lieser-Str.9

Prof. Dr. Jürgen Rühe

Laboratory for Chemistry and Physics of Interfaces, Department of Microsystems Engineering (IMTEK), University of Freiburg

"Tailormade Polymer Monolayers and Networks for Microsystems and Engineered Biointerfaces"


All interactions of materials with their  respective environments are controlled by the topography and chemical  composition of their surfaces. Examples are the adhesion between  different objects, wetting of surfaces by contacting liquids and the  adsorption of molecules from the surrounding medium. Accordingly it is  important to develop chemical tools which allow the attachment of  tailor-mode polymer molecules to surfaces of different chemical  composition. In the presentation a new strategy will be presented which  allows to generate novel, micropatterned polymer coatings with tailor-made  properties with high spatial resolution on a variety of different  substrates, ranging from typical oxides to polymers and biological  materials [1-5]...

Ruehe_160114_KolloquiumSFB.pdf (141.5 KB)  vom 19.12.2013

09.01.2014 in Halle

@ Gustav-Mie auditorium of the Institute of Physics, Theodor-Lieser-Str.9

Prof. Dr. Dieter Richter

Forschungszentrum Jülich,Institute of Complex Systems (ICS-1)
52425 Jülich, Germany

"Polymer Dynamics in Nano Composites and under Confinement"


After summarizing neutron spin echo (NSE) results on the polymer dynamics in non-interacting  nano composites, I will present NSE investigations on polymers  interacting attractively with nanoparticles or confining surfaces.  Polyethylene-oxide (PEO) was filled with neat SiO2 nanoparticles up to 15 vol%. Investigating a short chain matrix we realised that...

Richter_090114_KolloquiumSFB.pdf (87.6 KB)  vom 19.11.2013


12.12.2013 in Leipzig

@ auditorium of the Institute of Theoretical Physics Linnéstr. 5

Prof. Jeppe C. Dyre

The Department of Science, Systems and Models
Universitetsvej 1, 27.1, DK-4000, Roskilde,Denmark

"What controls the relaxation time in glass-forming liquids and polymers? New insights from density scaling and the isomorph theory"


The relaxation time of a supercooled liquid increases dramatically upon lowering temperature or increasing density; the same applies for the alpha relaxation time of polymeric systems. In extreme cases a 1% temperature decrease leads to more than a factor of ten increase of the relaxation time. The relaxation time is typically probed as the inverse dielectric loss-peak frequency, but ...

Dyre_121213_KolloquiumSFB_L.pdf (78.6 KB)  vom 19.11.2013

21.11.2013 in Halle

Prof. Ben Schuler

Biochemisches Institut, Universität Zürich,Winterthurerstr. 190,
8057 Zürich, Switzerland

"Probing the polymer properties of unfolded and intrinsically disordered proteins with single-molecule spectroscopy"


Intrinsically disordered proteins (IDPs) lack a well-defined three-dimensional structure, but are involved in a wide range of biological functions. Single-molecule fluorescence spectroscopy can provide intramolecular distance distributions and reconfiguration times under a wide range of conditions, ...

Schuler_211113_KolloquiumSFB.pdf (146.3 KB)  vom 23.10.2013

18.07.2013 in Halle

Prof. Dr. Stephan Förster

Institut für Physikalische Chemie, Universität Bayreuth

"The perfect mix: making nanoparticles that like polymers."


Polymer nanocomposites have gathered substantial academic and industrial interest since the first reports in the early 1990s. Observations of large property changes at very low volume fractions of added nanoparticles, and the possibility to integrate nanoparticles with specific properties providing new functions have motivated an increasing number of investigations...

Förster_180713_KolloquiumSFB.pdf (73.2 KB)  vom 09.07.2013

27.06.2013 in Leipzig

Prof. Dr. R. Winter

TU Dortmund

"Fibrillogenesis of the Islet Amyloid Polypeptide - Effects of Membranes, Crowding, and Search for Inhibitors"

Using various physical-chemical tools and perturbation parameters, the effects of temperature, pressure, cosolvents as well as lipid interfaces and confining geometries on the various stages of the aggregation and fibrillation reaction of amyloidogenic peptides have been studied. First we show data on the experimentally derived static structure factor obtained for the protein insulin which has been analyzed with astatistical mechanical model based on the DLVO potential...

Kolloq_RWinter_270613.pdf (193.8 KB)  vom 19.02.2013

13.06.2013 in Halle

Prof. Dr. J.-U. Sommer

Leibniz Institute of Polymer Research Dresden e. V. "Polymer Crystallization: Ordered Structures in Complex Systems"Abstract:The  crystallization of long chain molecules requires two ordering processes  which take place simultaneously: Transition of each chain from the  randomly coiled state into the partially folded and extended state, and  the growth of many chains forming a regular crystalline structure. This  leads to complex crystallization and nucleation pathways which usually  result in non-equilibrium meta-stable states.

Sommer_130613_KolloquiumSFB.pdf (95.5 KB)  vom 03.06.2013

06.06.2013 in Leipzig

Prof. Dr. Martin Möller

RWTH Aachen

"From hierarchical selforganisation towards polymer systems with functional and active properties"

Polymer science focuses more than ever on mastering increasingly complex molecular structures and supramolecular assemblies for advanced functionalities such as nanoprogrammed structure formation, molecular recognition, meta- and multistability, adaptive structures, shape memory properties, self-healing properties, molecular motility, molecular energy conversion systems and replication.
The work presented here focuses on the spontaneous formation of functional monolayers...

Kolloq_MMoeller_060613.pdf (190 KB)  vom 12.03.2013

17.01.2013 in Leipzig

Prof. Dr. Dieter Neher
(University of Potsdam, Institute of Physics and Astronomy)

"Charge Carrier Generation and Transport in Organic Solar Cells"

17.01.2013 SFB TRR 102 Kolloquium Prof. D.Neher -Leipzig.pdf (113.6 KB)  vom 04.01.2013

10.01.2013 in Halle

Prof. Juan Colmenero de Leon
(Centro de Física de Materiales (CSIC, UPV/EHU) and Donostia International Physics Center, San Sebastián, Spain)

"Constrained Chain dynamics in un-entangled polymer blends with dynamic asymmetry. A generalized Langevin equation (GLE) formalism"

10.01.2013 SFB TRR 102 Kolloquium Prof. J. Colmenero.pdf (116.2 KB)  vom 04.01.2013


22.11.2012 in Leipzig

Hans-Jürgen Butt (MPI für Polymerforschung Mainz)

Dynamics at solid-liquid interfaces

Butt_221112_Kolloquium.pdf (614.1 KB)  vom 02.10.2012

01.11.2012 in Halle

Prof. Do Yoon (Department   of Chemical Engineering, Stanford University, Stanford, USA)

"Effects of Comonomers on Lamellar and Noncrystalline Microstructure of Ethylene Copolymers"

Yoon_01112_Kolloquium.pdf (105.3 KB)  vom 23.10.2012

18.10.2012 in Halle

Cédric Lorthioir (CNRS / University of Paris East)

Interfacial dynamics of polymer chains in nanocomposite hydrogels:
An intermediate state towards solid-state nanocomposites

Lorthioir_181012_Kolloquium.pdf (605.5 KB)  vom 02.10.2012

20.09.2012 in Halle

Prof. Klaus Schmidt-Rohr, (Ames, Iowa,USA)

Analysis of Chain Dynamics and Nanostructure in Polymer-based Materials

An analysis of chain dynamics and ordering, as well as the local morphology, will be presented for two nanostructured polymer-based materials, based on NMR and scattering data.  Nylon-6 in a nanocomposite with an inorganic glass is constrained to layers of thicknesses comparable to the crystallite dimensions. Selective NMR of the polymer near the organic-inorganic interface shows reduced crystallinity and mobility...

Invitation SFB Colloquium
20.09.2012 SFB TRR 102 Kolloquium Prof. K. Schmidt-Rohr.pdf (106 KB)  vom 13.09.2012

28.06.2012 in Leipzig

Prof. Matthias Ballauff
"Interaction of Proteins with Soft Polymeric Layers"

Einladung 28.06.2012 SFB TRR 102 Kolloquium Prof. Dr. Matthias Ballauff Leipzig.pdf (112 KB)  vom 18.06.2012


Prof. George Floudas,
"Discotic liquid crystals in motion"

Einladung 07.06.2012 SFB TRR 102 Kolloquium Prof. Dr. George Floudas Halle.pdf (34 KB)  vom 03.04.2012

24.05.2012 in Leipzig

Prof. Jürgen Rabe
"Molecularly defined soft nano-tubes and slit-pores -  how to make and how to use them"

Abstract to follow!!

Einladung 24.05.2012 SFB TRR 102 Kolloquium Prof. Dr. Jürgen Rabe Leipzig.pdf (84.4 KB)  vom 14.05.2012


Prof. Ian Manners
"Functional Nanomaterials via Crystallization-Driven “Living Self-Assembly""

Einladung 10.05.2012 SFB TRR 102 Kolloquium Prof. Dr. Ian Manners Halle.pdf (32.9 KB)  vom 03.04.2012


Prof. Peter Schurtenberger
"Concentrated protein solutions, or a physicist's view of cataract formation"

Joint colloquium of the Institute of Physiks and the SFB/TRR 102

Einladung 26.04.2012 SFB TRR 102 Kolloquium Prof. Dr. Peter Schurtenberger Halle.pdf (47.1 KB)  vom 03.04.2012

19.03.2012 2.00 pm

Prof. Virgil Percec
"Bioinspired Synthesis of Complex Systems"

Einladung Sondertermin Prof. Virgil Percec
Einladung 19.03.2012 SFB TRR 102 Kolloquium Prof. Dr. Virgil Percec Halle.pdf (31.9 KB)  vom 21.10.2013


Prof. Dr. Frédéric Laquai, MPI for Polymer Research, Mainz (Binder)
“Efficiency-limiting processes in bulk heterojunction organic solar cells”

The colloquium will start at 4.00 pm in Room 1.27, Von-Danckelmann-Platz 4, 06120 Halle (Campus Heide-Süd).
GDCh_SFB TRR 102_Einlad_15_02_2012.pdf (87.3 KB)  vom 10.02.2012