Header Bild

Institute of Physics

Gerhard Popovski

Wissenschaftlicher Mitarbeiter
gerhard.popovski(at)unileoben.ac.at
Durchwahl: 4625

Persönliche Daten

Gerhard Popovski, geb. Fritz
Geboren am 29. 05. 1973 in Schladming, Österreich
verheiratet, ein Kind

Studium

10.1991 - 07.1997 Chemiestudium an der Karl-Franzens Universität Graz und Diplomarbeit am Institut für Physikalische Chemie über " Charakterisierung fluider Systeme mit Streumethoden und komplementären Techniken“.
09.1997 - 08.09.2000 Dissertation am Institut für Chemie der Karl-Franzens Universität über " Auswertung von Streudaten wechselwirkender Systeme“.


Postdoktorale Forschung

10.2000 - 08.2001 Freier Mitarbeiter der BASF Aktiengesellschaft (Ludwigshafen, Deutschland) im Bereich Polymerphysik. Erforschung von elektrosterischer Stabilisierung kolloidaler Partikel mittels Hochfrequenzrheologie, klassischer Rheologie und Streumethoden.
09.2001 - 12.2002 Post-Doc an der University of Delaware, Chemical Engineering Department. Arbeit über die Bildung Multilamellarer Vesikel mittels Streuung unter Scherung.
01.2003–12.2004 Forschungsprojekt am Institut für Chemie der Karl-Franzens Universität über Weiterentwicklung von Röntgenkleinwinkel-Kameras, besonders in Hinblick auf Oberflächenstreuung (Reflekometrie und GISAXS).

Wissenschaftlicher Mitarbeiter

01.2005 - 11.2009 Assistent an der Karl-Franzens Universität, Graz
03.2009 Habilitation aus Physikalischer Chemie. Titel der Habilitationsschrift: “ Characterization of Liquids and Polymers by Scattering


Foschungsaufenthalte

  • Aufenthalt in J. Bibettes Labor, CNRS, Bordeaux um die Herstellung wohl definierter Emulsionen zu lernen (Frankreich) 1997
  • Besuch in E. Amis Labor in NIST, Gaitherburg, MD um die Generalisierteindirekte Fourier Transformation einzuführen, (USA) 1999
  • Besuch in N. Wagners Labor, University of Delaware, DE um die Generalisierte indirekte Fourier Transformation einzuführen (USA) 2000
  • Kooperationsbesuche in A. Jamniks Labor, Universität Ljubljana (Slowenien) 2003-2009

Nutzung von Großforschungseinrichtungen

  • Neutronen Kleinwinkelstreuung (SANS) an Instrument D22, ILL, Grenoble,Frankreich 1997, 1998 und 1999
  • Neutronen Kleinwinkelstreuung (SANS) an Instrument SANS, PSI, Villigen,Schweiz, 1999, und 2000
  • Neutronen Kleinwinkelstreuung unter Scherung (rheo-SANS) an InstrumentNG 3, NIST, Gaitherburg, MD, USA, 2002
  • Röntgenkleinwinkelstreuung unter schleifendem Strahleinfall (GISAXS)an Instrument BM 4, HASYLAB, Hamburg, Deutschland, 2006 und 2007
     

Publikationen

Bis zu meiner Hochzeit publizierte ich unter “Gerhard Fritz”. Danach nahm ich den Namen meiner Frau an, publizierte aber weiter unter dem Namen “Gerhard Fritz-Popovski”, um es leichter zu machen, alle meine Publikationen mir zuzuordnen. 

Beiträge in peer-review Journalen

1. D. Lehner, P. Worning, G. Fritz, L. Øgendal, R. Bauer, and O. Glatter
Characterization of Enzymatically Induced Aggregation of Casein Micelles in Natural Concentration by in Situ Static Light Scattering and Ultra Low Shear Viscosimetry
J. Colloid Interface Sci. (1999)  213 , 445-456


2. G. Fritz, G. Scherf, and O. Glatter
Applications of Densiometry, Ultrasonic Speed Measurements, and Ultralow Shear Viscosimetry to Aqueous Fluids
J. Phys. Chem. B (2000)  104 , 3463-3470

3. A. Jehrlich, G. Fritz, H. Kharrazi, M. Hammel, S. Tschabuschnig, O. Glatter, and R. J. Schaur
Comparison of HOCl traps with myeloperoxidase inhibitors in prevention
of low density lipoprotein oxidation

Biochimica et Biophysica Acta (2000)  1481 , 109-118

4. A. Bergmann, G. Fritz, and O. Glatter
Solving the generalized indirect Fourier transformation (GIFT) by
Boltzmann simplex simulated annealing (BSSA)

J. Appl. Cryst. (2000)  33 , 1212-1216

5. O. Glatter, G. Fritz, H. Lindner, J. Brunner-Popela, R. Mittelbach, R. Strey, and S. U. Egelhaaf
Nonionic Micelles near the Critical Point: Micellar Growth and Attractive
Interaction

Langmuir (2000),  16 , 8692-8701

6. G. Fritz, A. Bergmann, and O. Glatter
Evaluation of small-angle scattering data of charged particles using the generalized indirect Fourier transformation technique
J. Chem. Phys. (2000)  113 , 9733-9740

7. B. J. Maranzano, N. J. Wagner, G. Fritz, and O. Glatter
Surface Charge of 3-(Trimethoxysilyl) Propyl Methacrylate (TPM) Coated Stöber Silica Colloids by Zeta-Phase Analysis Light Scattering and Small Angle Neutron Scattering
Langmuir, (2000),  16 , 10556-10558

8. R. Zimmermann, U. Panzenböck, A. Wintersberger, S. Levak-Frank, W. Graier, O. Glatter, G. Fritz, G. M. Kostner, and R. Zechner
Lipoprotein Lipase Mediates the Uptake of Glycated LDL in Fibroblasts, Endothelial Cells, and Macrophages
Diabetes (2001)  50  1643-1653

9. H. Lindner, G. Fritz, and O. Glatter
Measurements on Concentrated Oil in Water Emulsions Using Static Light Scattering 
J. Colloid Interface Sci. (2001)  242 , 239-246 

10. S. R. Raghavan, G. Fritz, and E. Kaler
Wormlike Micelles Formed by Synergistic Self-Assembly in Mixtures of Anionic and Cationic Surfactants
Langmuir (2002)  18 , 3797-3803

11. G. Fritz, B. J. Maramzano, N. J. Wagner, and N. Willenbacher
High frequency rheology of hard sphere colloidal dispersions measured with a torsional resonator
J. Non-Newtonian Fluid Mech. (2002)  102 , 149-156

12. G. Fritz, V. Schädler, N. Willenbacher, and N. J. Wagner
 Electrosteric Stabilization of Colloidal Dispersions
Langmuir (2002),  18 , 6381-6390

13. P. A. Hassan, G. Fritz, and E. W. Kaler
Small angle neutron scattering study of sodium dodecyl sulfate micellar growth driven by addition of a hydrotropic salt
J. Colloid Interface Sci. (2003),  257 , 154-162

14. G. Fritz, W. Pechhold, N. Willenbacher, and N. J. Wagner
Characterizing Complex Fluids with High Frequency Rheology using Torsional Resonators at Multiple Frequencies
J. Rheol (2003),  47 (2), 303-319

15. G. Fritz, N. J. Wagner, E. W. Kaler
Formation of Multilamellar Vesicles by Oscillatory Shear
Langmuir (2003)  19 (21) 8709-8714

16. G. Fritz, E. M. Wagner, H. Lindner, W. Hofmann, R. Zechner, O. Glatter
Dependence of lipoprotein lipase catalyzed triacylglycerol hydrolysis on droplet size of synthetic monodisperse emulsions measured with static light scattering
J. Colloid Interface Sci. (2004)  275  642-648

17. M. Singh, G. Tan, V. Agarwal, G. Fritz, K. Maskos, A. Bose, V. John, G.L. McPherson
Structural Evolution of a Two-Component Organogel
Langmuir (2004)  20  7392-7398

18. Th. Frühwirth, G. Fritz, N. Freiberger, O. Glatter
Structure and order in lamellar phases determined by small-angle scattering
J. Appl. Cryst. (2004)  37  703-710

19. G. Fritz, A. Bergmann
Interpretation of Small-Angle Scattering Data of Inhomogeneous Ellipsoids
J. Appl. Cryst. (2004),  37  814-822

20. M. Singh, Ch. Ford, V. Agarwal, G. Fritz, A. Bose, V. John, G.L. McPherson 
Structural Evolution in Cationic Micelles upon Incorporation of a Polar Organic Dopant
Langmuir (2004)  20  9931-9937

21. J. Kopec, A. Bergmann, G. Fritz, E. Grohmann, W. Keller
TraA and its N-terminal relaxase domain of the Gram-positive plasmid plP501 show specific oriT binding and behave as dimers in solution
Biochem. J. (2005)  387  401-409

22. J. Jansson, K. Schillén, M. Nilsson, Olle Södermann, G. Fritz, A. Bergmann, O. Glatter
Small-Angle X-ray Scattering, Light Scattering, and NMR Study of PEO-PPO-PEO Triblock Copolymer/Cationic Surfactant Complexes in Aqueous Solution
J. Phys. Chem. B (2005)  109  7073-7083

23. G. Fritz, A. Bergmann
SAXS Instruments with Slit Collimation: Investigation of Resolution and Flux
J. Appl. Cryst (2006)  39  64-71

24. J. F. Graveland-Bikker, G. Fritz, O. Glatter, C. G. de Kruif
Growth and structure of -lactalbumin nanotubes
J. Appl. Cryst. (2006)  39  180-184

25. G. Fritz 
Determination of Pair Correlation Functions of Dense Colloidal Systems by Means of Indirect Fourier Transformation
J. Chem. Phys. (2006)  124  214707(1-6)

26. G. Fritz, O. Glatter
Structure and Interaction in Dense Colloidal Systems: Evaluation of Scattering Data by the Generalized Indirect Fourier Transformation Method
J. Phys.: Condens. Matter (2006)  18  S2403-S2419

27. K. Stubenrauch, Ch., Moitzi, G., Fritz, O., Glatter, G., Trimmel, F., Stelzer Precise  Tuning of Micelle, Core and Shell Size by the Composition of Amphiphilic Block Copolymers Derived from ROMP investigated by DLS and SAXS
Macromolecules (2006)  39  5865-5874

28. Ch. Moitzi, S. Guillot, G. Fritz, S. Salentinig, O. Glatter
Self-Assembly Driven Phase Reorganisation Through Interparticle Material Transfer
Advanced Materials (2007)  19  1352-1358

29. M. Tomsic, A. Jamnik, G. Fritz-Popovski, O. Glatter, L. Vlcek 
Structural Properties of Pure Simple Alcohols from Ethanol, 1-Propanol, 1-Butanol, 1-Pentanol to 1-Hexanol: Method for Calculating Scattering Intensities from Monte Carlo Simulation Results and Validation with SAXS Data
J. Phys. Chem. B. (2007)  111  1738-1751

30. K. Stubenrauch, G. Fritz-Popovski, E. Ingoli´c, W. Grogger, O. Glatter, F. Stelzer, G. Trimmel
Microphase Separation Study of Amphiphilic ROMP Block Copolymers by SAXS and TEM
Macromolecules  40  4592-4600

31. M. Tomsic, G. Fritz-Popovski, L. Vlcek, A. Jamnik 
Calculating Small-Angle X-Ray Scattering Intensities from Monte Carlo Results: Exploring Different Approaches on the Example of Primary Alcohols
Acta Chim. Slov. (2007)  64  484-491

32. M. Sandholzer, G. Fritz-Popovski, Ch. Slugovc
Synthesis and Self Assembly of Eosin Functionalized Amphiphilic Block-Random Copolymers Prepared by Ring Opening Metathesis Polymerization
J. Polymer Sci.: Part A: Polymer Chem. (2008)  46  401-413

33. Th. Rath, B. Kunert, R. Resel, G. Fritz-Popovski, R. Saf, G. Trimmel
Investigation of primary crystallite sizes in nanocrystalline ZnS-powders: Comparison of microwave assisted with conventional synthesis routes 
Inorg. Chem. (2008)  47  3014-3022

34. K. Stubenrauch, I. Voets, G. Fritz-Popovski, G. Trimmel
pH and Ionic Strength Responsive Polyelectrolyte Block Copolymer Micelles Prepared by Ring Opening Metathesis Polymerization
J. Pol. Sci. A Poly Chem. (2009)  47 , 1178-1191

35. P.A. Hassan, T. K. Hodgdon, M. Sagasaki, G. Fritz-Popovski, E. W. Kaler
Phase behavior and microstructure evolution in aqueous mixtures of cetyltrimethylammonium bromide and sodium dodecyl tri-oxyethylene sulfate
C. R. Chimie (2009)  12 , 18-29

36. D. Löf, M. Tomsic, O. Glatter, G. Fritz-Popovski, Karin Schillén
Structural Characterization of Nonionic Mixed Micelles Formed by C12EO6 Surfactant and P123 Triblock Copolymer
J. Phys. Chem. B (2009)  113 , 5478-5486

37. A. Lajovic, M. Tomsic, G. Fritz-Popovski, L Vlcek, A. Jamnik
Exploring the Structural Properties of Simple Aldehydes: A Monte Carlo and Small-Angle X-Ray Scattering Study
Journal of Physical Chemsitry B (2009)  113 , 9429-9435

38. G. Fritz-Popovski
Determination of Colloidal Interaction Potentials from Small Angle Scattering Data
J. Chem. Phys. (2009)  131 , 114902(1-6)

Beiträge zu Büchern

1. O. Glatter, G. Fritz “Dynamische Lichtstreuung (DLS)” in “Handbuch der Nanoanalytik Steiermark”, W. Rom (Ed.), Graz, 2005.

2. O. Glatter, G. Fritz “R¨ontgenkleinwinkelstreuung (SAXS)” in “Handbuch der Nanoanalytik Steiermark”, W. Rom (Ed.), Graz, 2005. 

Konferenz-Proceedings

1. M. Rehman, S. Ali, S. A. Siddiqi, M. A. Mirza, G. Fritz, M. Saleem
Synthesis and Characterizations of CuO Nanoparticles
Symposium on “Engineering Sciences" Lahore, April 30th 2009

Vorträge

1. G. Fritz
The application of precision densimetry, ultrasonic speed measurements and low shear viscosimetry to surfactant systems: instrumentation and applications
European HC&M Network, Carry le Rouet (France), 1997.05.23

2. G. Fritz, O. Glatter
Evaluation of Small-Angle Scattering Data of Charged Particles
Bombannes Summer School, Bombannes (France), 2000.06.01

3. G. Fritz, N.J. Wagner, N. Willenbacher
Electrosteric Stabilization of Colloidal Dispersions
76th ACS Colloid & Surface Science Symposium, Ann Arbor, MI (USA) 2002.06.24

4. G. Fritz, L. de Campo, O. Glatter
Inversion of Scattering Data from Interacting Colloidal Systems
Workshop on Attractive Interaction in Colloidal Systems, Bad Gastein (Austria), 2003.01.20

5. G. Fritz
Estimation of Interaction Potentials between Proteins in Solution
Workshop on Dynamical Arrest of Soft Matter and Colloids, Bad Gastein (Austria), 2005.01.24

6. G. Fritz, Ch. Moitzi, K. Stubenrauch
Application of SAXS to block copolymer samples
Workshop on Integrated Organic Sensor and Optoelectronic Technologies, Weiz (Austria), 2005.12.02

7. G. Fritz
Calculation of g(r) Functions from Small-Angle Scattering Data by Means of Indirect Fourier Transformation
13th Conference of Small Angle Scattering (SAS 2006), Kyoto (Japan), 2006.07.10

8. G. Fritz-Popovski
Determination of pair correlation functions of dense colloidal systems by means of indirect Fourier transformation
Workshop on Dynamical Arrest of Soft Matter and Colloids, Bad Gastein (Austria), 2007.01.22

9. G. Fritz-Popovski, F. Muller, Ch. Moitzi, K. Stubenrauch, G. Trimmel, S. V. Roth
GISAXS on Ordered Polymer Films
2nd Workshop: GISAXS an advanced scattering method, Hamburg (Germany), 2007.05.09

10. G. Fritz-Popovski
Streuung an wechselwirkenden Systemen
Presentation on invitation by University Regensburg, Regensburg (Germany), 2007.06.14

11. G. Fritz-Popovski, F. Muller, Ch. Moitzi, K. Stubenrauch, G. Trimmel, S. V. Roth
Structure of Films from Amphiphilic Block Copolymers Derived from ROMP Investigated by GISAXS
12th International Conference on Organized Molecular Films, Krakow (Poland), 2007.07.04

12. G. Fritz-Popovski
Evaluation of Small Angle Scattering Data by Indirect Fourier Transformation
Presentation invited by Institute of Atomic Energy, Warsaw (Poland), 2007.07.24

13. G. Fritz-Popovski, K. Stubenrauch, Ch. Moitzi, E. Ingoli´c, W. Grogger, G. Trimmel
Structures of Amphiphilic ROMP Block Copolymers in Solution and in Films
22nd Conference of the European Colloid and Interface Society (ECIS), Krakow (Poland), 2008.09.03