Universität Wien

260014 VO Colloidal Soft Matter (2022S)

5.00 ECTS (3.00 SWS), SPL 26 - Physik
Moodle

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Details

Language: English

Examination dates

Lecturers

Classes (iCal) - next class is marked with N

  • Monday 07.03. 09:45 - 11:15 Seminarraum 9, Kolingasse 14-16, OG01
  • Tuesday 08.03. 09:45 - 10:30 Seminarraum 9, Kolingasse 14-16, OG01
  • Monday 14.03. 09:45 - 11:15 Seminarraum 9, Kolingasse 14-16, OG01
  • Tuesday 15.03. 09:45 - 10:30 Seminarraum 9, Kolingasse 14-16, OG01
  • Monday 21.03. 09:45 - 11:15 Seminarraum 9, Kolingasse 14-16, OG01
  • Tuesday 22.03. 09:45 - 10:30 Seminarraum 9, Kolingasse 14-16, OG01
  • Monday 28.03. 09:45 - 11:15 Seminarraum 9, Kolingasse 14-16, OG01
  • Tuesday 29.03. 09:45 - 10:30 Seminarraum 9, Kolingasse 14-16, OG01
  • Monday 04.04. 09:45 - 11:15 Seminarraum 9, Kolingasse 14-16, OG01
  • Tuesday 05.04. 09:45 - 10:30 Seminarraum 9, Kolingasse 14-16, OG01
  • Monday 25.04. 09:45 - 11:15 Seminarraum 9, Kolingasse 14-16, OG01
  • Tuesday 26.04. 09:45 - 10:30 Seminarraum 9, Kolingasse 14-16, OG01
  • Monday 02.05. 09:45 - 11:15 Seminarraum 9, Kolingasse 14-16, OG01
  • Tuesday 03.05. 09:45 - 10:30 Seminarraum 9, Kolingasse 14-16, OG01
  • Monday 09.05. 09:45 - 11:15 Seminarraum 9, Kolingasse 14-16, OG01
  • Tuesday 10.05. 09:45 - 10:30 Seminarraum 9, Kolingasse 14-16, OG01
  • Monday 16.05. 09:45 - 11:15 Seminarraum 9, Kolingasse 14-16, OG01
  • Tuesday 17.05. 09:45 - 10:30 Seminarraum 9, Kolingasse 14-16, OG01
  • Monday 23.05. 09:45 - 11:15 Seminarraum 9, Kolingasse 14-16, OG01
  • Tuesday 24.05. 09:45 - 10:30 Seminarraum 9, Kolingasse 14-16, OG01
  • Monday 30.05. 09:45 - 11:15 Seminarraum 9, Kolingasse 14-16, OG01
  • Tuesday 31.05. 09:45 - 10:30 Seminarraum 9, Kolingasse 14-16, OG01
  • Monday 13.06. 09:45 - 11:15 Seminarraum 9, Kolingasse 14-16, OG01
  • Tuesday 14.06. 09:45 - 10:30 Seminarraum 9, Kolingasse 14-16, OG01
  • Monday 20.06. 09:45 - 11:15 Seminarraum 9, Kolingasse 14-16, OG01
  • Tuesday 21.06. 09:45 - 10:30 Seminarraum 9, Kolingasse 14-16, OG01

Information

Aims, contents and method of the course

The course aims at providing advanced Master’s students, PhD students or interested postdoctoral researchers with a thorough exposure in the basic experimental and theoretical concepts of the Physics associated with the structure and dynamics of colloids and colloidal systems. On the theory side, emphasis will be put on models of macroscopic, rigid aggregates undergoing thermal fluctuations and being exposed to hydrodynamic interactions in a microscopic solvent. On the experimental side, emphasis will be put on modern techniques using cameras and image processing.

A syllabus of the Course is provided below.

Introduction to soft matter (3h)
• Definition and overview of soft systems
• Length-, time-, and energy-scales
• Overview of theoretical and experimental approaches
• Colloids as prototypical soft matter systems
• Brownian motion and diffusion: the Stokes-Einstein relation and Fick’s laws

Isolated colloidal particles (6h)
• Math preliminaries: time and ensemble averages, fluctuations, correlation functions
• Brownian motion of a free particle: the Langevin description
• Brownian motion in direct space: imaging and particle tracking; the self-van Hove function
• Brownian motion in a harmonic potential: optical tweezers; microrheology

Dilute colloids: Non-interacting particles (9h)
• Osmotic pressure; van’t Hoff’s law
• Brownian motion in the gravity field: sedimentation equilibrium, the Perrin experiment; centrifugation
• Brownian motion in direct space II: Fluorescence Recovery After Photobleaching (FRAP) and Fluorescence Correlation Spectroscopy (FCS)
• Brownian motion in reciprocal space: the self-intermediate scattering function; Dynamic Light Scattering (DLS); Differential Dynamic Microscopy (DDM); Forced Rayleigh Scattering (FRS)
• Static scattering from independent particles: Rayleigh, Rayleigh-Gans, Mie

Dense colloids: Interacting particles
• Colloidal interactions, equations of state, virial coefficient
• Dispersion forces, colloidal stabilization (steric)
• Spatial correlations for interacting particles: g(r) and its experimental determination
• Scattering from interacting particles; the static and dynamic structure factor
• Diffusing Wave Spectroscopy (DWS)

Hard spheres
• Structure and dynamics of hard sphere suspensions
• Crystallization: close packing, the role of entropy, Density Functional Theory (DFT)
• Vitrification: in-cage dynamics, structural relaxation, dynamical heterogeneity, Mode Coupling Theory (MCT)

Sticky spheres
• Depletion interactions
• Liquid-gas coexistence
• Gelation of sticky spheres

Charged spheres
• Debye-Hückel theory of electrostatic repulsion
• The Derjaguin, Landau, Vervey, and Overbeek (DLVO) theory of electrostatic colloidal stabilization
• Fractal aggregation and fractal gels

Soft particles
• Shape, deformability and packing

Assessment and permitted materials

Assessment will be conducted via oral examination, which allows for a comprehensive view of your knowledge/abilities and gives a unique opportunity for interaction. A list of current topics in colloidal science with literature hints will be set at disposal of the participants and during the oral exam you will choose and briefly present the key paper(s) for a topic and answer questions on the paper(s) and on the corresponding course topic. You will then be asked at least one question about at least one topic different from the chosen one.

Minimum requirements and assessment criteria

Previous knowledge of Statistical Mechanics at the T4-level is required. The final grade will be determined by considering both the breadth and depth of the individual learning process, in terms of acquired knowledge and abilities, including the clarity and content of the presentation. Critical thinking skills will be also considered.

Examination topics

Exam topics include all the topics that are treated in the lectures. The lecture notes and the key papers are made available after each lecture on the Moodle page of the course.

Reading list

R. Borsali and R. Pecora, eds. Soft matter characterization. New York: Springer, 2008.

A. Fernandez-Nieves and A.M. Alberto, and Antonio Manuel Puertas, eds. Fluids, colloids, and soft materials: an introduction to soft matter physics. New York: Wiley, 2016.

J. K. G. Dhont, An Introduction to Dynamics of Colloids, (Elsevier, 1996).

M. Doi, Soft matter physics. Oxford University Press, 2013

J.-P. Hansen and I. R. McDonald, Theory of Simple Liquids with Applications to Soft Matter, 4th Edition (Academic Press, 2013).

J. Olafsen, ed. Experimental and Computational Techniques in Soft Condensed Matter Physics. Cambridge University Press, 2010.

W. B. Russel, D. A. Saville, and W. R. Schowalter, Colloidal Dispersions (Cambridge University Press, 1989).

M. Rubinstein and R. Colby, Polymer Physics (Oxford University Press , 2003)

D. C. Venerus and H. C. Öttinger, A Modern Course in Transport Phenomena (Cambridge University Press, 2018).

T.A. Witten and P.A. Pincus, Structured Fluids: Polymers, Colloids, Surfactants, (Oxford University Press, 2010)

Association in the course directory

M-VAF A 2, M-VAF B

Last modified: Th 25.08.2022 11:09