BG
blue_but.gif (1076 bytes)Head
blue_but.gif (1076 bytes)Staff
blue_but.gif (1076 bytes)Research Topics
blue_but.gif (1076 bytes)Experimental Methods
blue_but.gif (1076 bytes)Collaborations
blue_but.gif (1076 bytes)Selected Publications
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blue_but.gif (1076 bytes)Head: Jordan Petrov

Phone: +359-2-9793190
Fax: +359-2-9712493
E-mail: jordangpetrov@yahoo.com
1946 Born April 5, Sofia
1969 MS, Sofia University, Faculty of Chemistry
1981 PhD in Physical Chemistry
1986 Associate Professor in Physical Chemistry, Sofia University
1996 Adjunct Full Research Professor, University of South Australia
2004 Doctor of Science
2005 Professor

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blue_but.gif (1076 bytes)Staff:

Tonya Andreeva, Research Associate I degree, Phd, Mrs

Iren Tsonova, Research Associate I degree, Mrs

Marin Popgruev, Chemist, Mr

Violeta Olcheva, Technical assistant, Mrs

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Langmuir-Blodgett film

Deposition of Langmuir-Blodgett molecular assemblies of lipids on solid substrates.


blue_but.gif (1076 bytes)Research Topics

Langmuir monolayers of lipids and biopolymers as model membranes on liquid substrates. Langmuir-Blodgett multilayers as molecular assemblies on solid substrates. Modified liquid and solid surfaces with adjustable structure properties and functions. Regulation of the interfacial electrostatic potential and hydration water structure via fluorinated lipids. Adhesion in Langmuir-Blodgett model membranes with selected polar and charged hydrophilic groups. Static and dynamic wetting of solid surfaces Relationship between molecular structure of surfaces and membranes and their static and dynamic wetting and adhesion.

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blue_but.gif (1076 bytes)Experimental Methods

Langmuir balances for investigation of monolayers of lipids and biopolymers on liquid substrates. Equipment for deposition of Langmuir-Blodgett molecular assemblies on solid substrates. Optical equipment for precise measurement of static and dynamic contact angles. Fluorescent probes technique for determination of interfacial dielectric permittivity and electrostatic potentials.

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Collaborations

Max-Planck Institute of Colloids and Interfaces, Golm/Potsdam, Germany

Institute “Ian Wark”, University of South Australia, Adelaide, Australia

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blue_but.gif (1076 bytes)Selected Publications

Petrov JG, Polymeropoulos E, Möhwald H (2007) Fluorinated Polar Heads Can Strikingly Increase or Invert the Dipole Moments at the Langmuir Monolayer-Water Boundary: Possible Effects from Headgroup Conformations. Langmuir, 23 (5): 2623-2630. 

Petrov JG, Andreeva TD, Möhwald H (2006) Fluorination of the Hydrophilic Head Accelerates the Collapse of the Monolayer but Stabilizes the Bilayer of a Long-Chain Trifluoroethyl Ether on Water. Langmuir, 22: 4136-4143.

Petrov JG, Andreeva TD, Kurth DG, Möhwald H (2005) Negative dipole potential of Langmuir monolayers of long chain ethers due to fluorination of the hydrophilic heads. J. Phys. Chem. B, 109: 14102-14111.

Petrov JG, Brezesinski G, Andreeva TD, Möhwald H (2004) Effect of Fluorination of the Hydrophilic Head on Morphology and Molecular Structure of Langmuir Monolayers of Long- Chain Ethers. J. Phys. Chem. B, 108:16154-16162.

Vasilchina H, Tzonova I, Petrov JG (2004) Transition from Static Wetting to Steady Dewetting and Deposition of Liquid Film on a Partially Wettable Surface. Colloids and Surfaces A, 250: 317-324.

Petrov JG, Ralston J, Scneemilch M, Hayes RA (2003) Dynamics of Partial Wetting and Dewetting of an Amorphous Fluoropolymer by Pure Liquids. Langmuir, 19: 2795-2801.

Petrov JG, Ralston J, Scneemilch M, Hayes RA (2003) Dynamics of Partial Wetting and Dewetting in Well Defined Systems. J. Phys. Chem. B, 107: 1634-1645.

Petrov JG, Brezesinski G, Krasteva N, Moehwald H (2001) Langmuir Monolayers with Fluorinated Groups in the Hydrophilic Head. 2. Morphology and Molecular Structure of Trifluoroethyl Behenate and Ethyl Behenate Monolayers. Langmuir, 17: 4581-4592.

Petrov JG, Polymeropoulos E, Moehwald H (2000) Langmuir Monolayers with Fluorinated Groups in the Hydrophilic Head. 1. Comparison of Trifluoroethyl Behenate and Ethyl Behenate Monolayers: Molecular Models, Mechanical Properties, Stability. Langmuir, 16: 7411-7420.

Petrov JG, Moebius D (2000) Interfacial Acid-Base Equilibrium and Electrostatic Properties of Model Langmuir-Blodgett Membrane in Contact with Phosphate Buffer. Colloids and Surfaces A, 171: 207-215.

Petrov JG, Pfohl T, Moehwald H (1999) Ellipsometric Chain Length Dependence of Fatty Acid Langmuir Monolayers. A Heads-and-Tails Model. J. Phys. Chem.B, 103: 3417-3424.

Petrov JG, Ralston J, Hayes RA (1999) Dewetting Dynamics on Heterogeneous Surfaces. A Molecular-Kinetic Treatment. Langmuir, 9: 3365-3373.

Petrov JG, Petrov PG (1998) Molecular-Hydrodynamic Description of Langmuir-Blodgett Deposition. Langmuir, 14: 2490-2496.

Petrov JG, Moehwald H (1996) Langmuir Monolayers with a CF3 Group in the Hydrophilic Head. Monolayers of Trifluoroethyl Ester of Behenic Acid. J. Phys. Chem. 100: 18458-18463.

Petrov JG, Polymeropoulos E, Moehwald H (1996) Three-Capacitor-Model for Surface Potential of Insoluble Monolayers. J. Phys. Chem. B, 100: 9860-9869.

Sedev RV, Budziak CJ, Petrov JG Neumann AW (1993) Dynamic Contact Angles at Low Velocities. J. Colloid Interface Sci. 159: 392-399.

Petrov PG, Petrov JG (1992) A Combined Molecular-Hydrodynamic Approach to Wetting Kinetics. Langmuir, 8: 1762-1767.

Petrov JG, Angelova A (1992) Interaction Free Energies in Langmuir-Blodgett Multilayers of Docosylammonium Phosphate. Langmuir, 8: 3109-3115.

Petrov JG, Moebius D (1990) Determination of the Electrostatic Potential of Positively Charged Monolayers at the Air/Water Interface by Means of Fluorometric Titration of 4-heptadecyl-7-hydroxycoumarin. Langmuir, 6: 746-751.

Petrov JG, Sedev RV (1985) On the Existence of a Maximum Speed of Wetting, Colloids and Surfaces, 13: 313-322.

Petrov JG, Radoev BP (1981) Steady Motion of the Three-Phase Contact Line in Model Langmuir-Blodgett Systems. Colloid and Polymer Sci. 259: 753-760.

Petrov J G, Kuhn H, Moebius D (1980) Three-Phase Contact Line Motion in the Deposition of Spread Monolayers. J. Colloid Interface Sci.73: 66-75.


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